P1394b S800 Long-Haul PMD Meeting,
Fort Lauderdale Marriott North,
Fort Lauderdale, Florida,
December 2, 1997

Chairman:       Colin Whitby-Strevens   (colinws@bristol.st.com)
Secretary:      Richard Churchill       (richard.churchill@compaq.com)

Reflector:      p1394b@zayante.com
Web Site:       http://www.zayante.com/p1394b/
FTP Site:       ftp://ftp.zayante.com/p1394b/           (for MS IE users)
                ftp://ftp.zayante.com/ftp/pub/p1394b/   (for Netscape users)


 1. Welcome and Introductions
 2. Approval of Agenda
 3. Approval of Minutes of Last Meeting
 4. Report from S100 PMD Task Group
 5. Optical connector proposal summary presentations
 5.1  Fibrejack
 5.2  Direct
 5.3  VF-45
 5.4  LC
 5.5  Mini-MT
 6. Connector Selection
 7. Transceiver parameters
 8. Future Plans and Schedule
 9. AOB
10. Adjourn


Meeting came to order at 8:35 AM

 1. Welcome and Introductions

    Introductions were made, as usual

 2. Approval of Agenda

    The proposed agenda was tendered.  Questions were raised regarding the
    possible presentation of long-haul transceiver information, and as to
    the place in the order of things of the S800 Long-Haul PMD group.  The
    action item for Del Hanson and others to address Transceiver issues
    was referenced, and 

 3. Approval of Minutes of Last Meeting

    Due to a lack of linkage of the minutes via the web site, they cannot
    be considered as having been distributed, despite timely publication.
    Therefore, approval of those minutes is deferred to a later meeting,
    after all have had time to review them.

 4. Report from S100 PMD Task Group

    Report of S100 POF/HPCF PMD sub Task Group
    p1394b, December 2, 1997
    chair: Shuntaro Yamazaki (NEC)

    Report ...
    November 10
    @ NEC HQ, hosted by NEC, 15 attendees
    Connection scenarios between S100 and S800 (NEC)
    Voting for Working Document ver. 0.02
    "The sub TG will move WD ver. 0.02 into the 1394b draft document, leaving
    connector section as TBD.  An unique connector optimized for POF/HPCF is
    to be selected as a p1394b specification."
    There were 10 votes for, 4 against, and 1 abstention, and motion carried.

    Report ...
    November 26
    @TFT hosted by Mitsubishi Rayon, 28 attendees
    Study report of worst case link loss for GI-HPCF (Sumitomo Electric)
    Connector loss 1.3 dB, Fiber loss 2.8 dB
    Amendment approved
    Connector selection criteria for POF/HPCF link was discussed and
    approved.  S100 POF PMD sub TG transfers this selection process to
    1394b committee.  Selection process wil follow the decision of 1394b
    committee.

    [Proposed Motion for P1394b:
    p1394b committee specifies an unique connector optimized for POF/HPCF
    link.  This connector specification is to be added to the section of
    POF/HPCF link in P1394b draft 0.06 or later version of the P1394b Draft.]
    <P1394b Chairman (Wooten) thinks this should remain in a task group, and
    not be tossed to the committee of the whole.

    [Proposed Motion for p1394b:
    P1394b committee allocates a time slot for the connector selection process
    for POF/HPCF link.  The connector selection schedule is
      December 2, '97 --- Nomination of selection candidate and approval of
                          comparision matrix
      December 24, '97 -- Fill up a comparision matrix and email distribution
      January 6-7, '98 -- ...]

    p1394b S100 POF/HPCF PMD sub TG Reflector member list
    ...

    POF/HPCF Connector Comparison Matrix
    ...

    8. Alternative losw cost long distance physical media dependent layers
    <<< 5 pages >>>


    Connection scenarios between S100 and S800
    12/2/1997
    P1394b, S100 POF/HPCF PMD sub TG
    NEC, Shuntaro Yamazaki

    <Conclusion drawn that GOF and POF should be different to avoid any
    significant chance of incompatibile interconnection.>
    <Questions were raised regarding the user scenarios presented, and the
    relative cost of adding repeaters.  Such additional components add cost
    to the overall solutions.  Also, questions were raised about the long
    term desirability of maintaining the copper connectors and connectivity.>

 5. Optical connector proposal summary presentations

    Optical connector selection ...
    - We're governed by Roberts Rules of Order
      - not well adapted to multiple choice decisions
    - Propose
      - A series of ...

    Elimination straw poll voting chart
    ...

    Motion  (proposed for the full p1394b committee)
    The p1394b S800 Task Group recommends that the p1394b specification for
    an optical connector for the multimode fibre be based on a reference to
    the --
    connector
    - proposed
      - seconded
        - for:
        - against:
        - abstain:

    <Please keep presentations to about 20 minutes.  Will there be a timer
    for these presentations?  Yes, the chairman.  If "none of the above"
    wins, do we have a procedure for going back to the fiber connector
    vendors as to what should be done?  No.  This will have to be decided
    later.>

 5.1  Fibrejack

    Wienecek
    Panduit

    Why Fiber Jack?
    - Designed for fiber to the wall
    - meets all 1349b selection criteria
    - Accepts all fiber media
    - ...
    ...

    Designed for fiber to teh wall
    - RJ45 Style
    - Jack and Plug - No adapter!
    - Flush Mounting
    - Robust Interface
    - Compatible to existing mounting means
      - MiniCom, Keystone

    Safety/Mechanical
    - All four fibers within the fiber Jack are proof tested beyond 15 pounds
      - Note: Jacks will be placed within open panels and outlets ...
    - ...

    Meets 1394b Specification Criteria
    - Addition to matrix
      - ....

    Fiber jack Performance
    <<< table >>> - test results

    IEEE Patent License Assurance Statement
    ...

    <Signed copy not available, but will be.  No upfront fee, plus 2% of
    sales.>

    Accepts ALL Fiber Media
    - 50 and 62.5 um Multi Mode GOF
    - ...
    ...

    Accepts All Fiber Media
    - Technology always changing
      - WDM on POF demo (8 wavelengths)
      - Offset Launch on MM GOF (threefold increase in bandwidth)
    - Gigabit ethernet length DOWNGRADED
      - Will 4 Gbit demand single mode?
    - Consumer Accptance of GOF unknown

    <GbEthernet was NOT downgraded, but retained original ranges.  The
    longer ranges had been an attempt to UPGRADE ...>

    Open to all Technologies
    - FJ is an Interface only!
      - Uses SC Ferrules today
    - Pre-polished Connectors
      - Easy termination, simple tool kits
    - Polymer Ferrules
    - Choose the technology now and what other new opportunities will
      be lost?

    R = RJ-45 styling
    <<< two pictures >>>

    Optical Fiber Interconnection options
    TR41.8.1, November 17-29, 1997
    Duplex Connector Geometry Impacts on Transceiver Component Packaging
    Standard Duplex TO-18 can geometries
    <<< diagram >>>

    Optical Fiber Interconnection option
    TR41.8.8 ...

    Open to All Technologies
    - The FJ can accept the D.I.R.E.C.T. design
    ...

    Proven Customer Acceptance, 12 months of sales
    - Motorola
    - Sprint
    - Abbott Labs
    - Indiana State University
    - Gateway 2000
    - ...
    ...

    Why we Recommend the Fiber jack Interface
    - Designed for Fiber to the Wall
    - Meets all 1394b Selection Criteria
    - Accepts all Fiber Media
    - Open to all Technologies
      -
    -

    The Fiber Jack
    - The best Future Proof Selection
     - and
    - The best choice for IEEE 1304b

 5.2  DIRECT

    Bob Scharf, Stewart Connector Systems
    Have agreements with others, and are throwing our support behind
    the Stewart Fiber Jack solution.  We are not proposing anything
    different.

    <Are you withdrawing your DIRECT proposal?  Yes.>

 5.3  VF-45

    VF-45 Duplex Fiber Optic Interconnect
    Proposal, IEEE P1394b Meeting, Ft. Lauderdale, FL,
    December 2 and 3, 1997.
    Juan Pulido, 3M Company

    VF-45 Low Cost Deplex Fiber Optic Connector - 1394b
    <<< four diagrams >>>

    VF-45 Low cost duplex Fiber Optic Connector - 1394b
    - meets 1394b driteria:
      - Low cost, simple installation, low loss (TIA compliant)
      - Suitable for home wiring with 20 year lifetime
      - Standards activity ongoing
      - low to zero maintenance
      - duplex, asummetric, differentiated keying
      - Supports speeds from 125 MBaud up to 4 GBaud
      - Suitable for equipment, dongles and wallplates
      - Supports standard multimode GLASS Optical Fiber
        - 50 micron and 62.5 micron
      - Small size (e.g. RJ-45 aperature compatible)
      - EYE SAFE
      - Current design does not support 1000 micron POF

    <Additions to prevent reverse key entry ...>

    Assembly of VF-45 ...
    <<< diagram >>>

    Silica Clad Fiber in 3M VF-45 ...
    <<< diagram >>>
    ...

    What's important for home applications?
    - (PRICE) low cost, low cost, low cost
    - Safety
    - performance
    - Availability
    - VF-45 Design Meets this Criteria

    VF-45 Duplex Fiber Optic Connector - V-Groove Technology
    - Cost Reductions due to:
      - No Ferrules Used
      - No Field Adhesives and Corresponding accessories
      - No Couplings of adapters required
      - low cost tooling
      - Reduced labor installation
        - enables amateur installation
      - Injection molded design
        - transferable technologies

    <Costs are about half of ...>

    Transceiver Package
    V-Groove Fiber Alignment
    - cost reduced E/O device into single package
      - improves density

    VF-45 Duplex Fiber Optic Connector
    - Safety
      - slide door on plug (integral)
      - Spring loaded dorr on socket and transceiver
      - recessed fibers on plug and socket
      - minimal bare fiber handling during installation
      - tooling design scores and captures bare fibers
      - transceiver meets class 1 laser safety

    VF-45 Duplex Fiber Optic Connector
    - Performance:
      - One cabling system for all applications
        - data/video/voice
        - No need to recable as electronics change
        - telecommuting (productivity with in the home)
      - Compliant with all mechanical and environmental conditions as
        specified by TIA 47500AB Detail Specification
      - Availability of Detail Specification
        - TIA PN 4122 to be TIA 47500AC
        - Intermatability standard TIA PN 3968, 604-7, FOCIS 7, Type SG
      - Compliance to 11801/568-A

    VF-45 Duplex Fiber Optic Connector
    - Availability:
      - Licensing per ANSI Requirements
      - Injection Molded Plastic Parts
        - Transferable Technologies
      - Affordable for Deployment at:
        - Home Depot
        - Radio Shack
        - ACE Hardware
        - Distributor Counters

    <The technology offers chances to bring fiber directly to the chip.
    This offers a chance to move to VERY low cost solutions, by eliminating
    much of the optics from systems.  You can still use "cans," which make
    all the existing components useful, but you have the chance to move
    to newer technologies.>

    <<<< Coffee Break, 10:17, to resume discussion at 10:35. (10:39 real)>>>>

 5.4  LC

    LC Connector
    The High density standard for premises networks
    Masood Shariff
    Lucent Technologies
    IEEE P1394b
    December 2, 1997

    IEEE 1394b Criteria
    Outline
    - Availability of Detailed specifications
    - Patent Letter to ANSI/IEEE
    - Low system complexity
    - performance complies to TIA 568
    - Size
    ...

    IEEE licensing letter draft ...

    TIA/ANSI letters ...

    LC Connector
    Availability of detailed specifications
    - Detailed specification available
    - FOCIS-10 LC Intermatability submitted to TIA 6.3.4 working group
    - LC product and data sheet eneral availability since 8/97

    LC Connector
    Low Complexity
    Lower sytem somplexity is key
    - no cost shifting
    - no special fiber required
    - no special cable required

    LC Connector
    Low Complexity
    ONE connector for all segments:
    Commercial, Residential, Public Network and Equipment Interface

    LC Connector
    Low Complexity
    Simplified components
    - 80% less ferrule material than 2.5 mm ferrules
    - 55% less machining than 2.5 mm ferrules
    - alternate material ferrules under development
    - simple injection molded plastic housing and adapter
    - 60% less material in minicord

    LC Connector
    Low Complexity
    Simple field termination for both outlet and BTW
    - Polishing time reduced 80 % due to smaller tip area
    - Familiar process - reduced craft training, greater acceptance
    - Less opportunity for installtion failures and downtime

    LC Connector
    Size
    - 51% small than SC
    - Adapts to copper modular jack openings

    LC Connector
    Duplex with polarity
    - Duplex adapter labels meet TIA 568 polarity labeling requirements
    - behind the wall plugs reversible to easily correct for polarity
      problems
    LC not limited to hard duplex -- supports more applications:
    - Simplex needed for video surveillance
    - triplex required for RGB video

    LC Connector
    Improvement over SC
    <<< table >>>

    LC Connector
    Multimode Performance
    Unmatched performance
    - 0.1 dB avg. Insertion Loss - MM and SM
      Gigabit applications require low loss links.
      - loss budgets will shrink by up to 80%
    - 33 dB Return loss - MM
    Gigabit appliations can use improved performance

    LC Optical performance
    Multimode - Insertion Loss
    <<< diagram >>>

    LC Optical Performance
    Multimode - Return Loss
    <<< diagram >>>

    LC Environmental Performance
    Multimode
    <<< diagram >>>

    LC Mechanical Perfomrance
    Mating Durability
    <<< diagram >>>

    LC Connector
    Performance Data
    Performance comparison
    <<< table >>>

    LC Connector
    Ergonomics
    True RJ-45 Style
    - User friendly
    - familiar copper style thumb latch
    - intuitively obvious engagement
    - audible click assures full insertion
    - improved anti-snag latch
    - no tools required

    LC Connector Solution
    Dust Protection
    Effective Cleaning crucial to performance
    - easy to wipe endface
    - easy to clean coupling adapter
    - craft familiar with cleaning process
    - dust caps for adapters and connectors
    - no pins to collect debris
    - no exposed fibers to break during cleaning

    LC - Suitable as an equipment connector
    Transceivers in Development
    - Lucent Microelectronics
    - Working with others
    ...

    Unlabeled
    <<< image >>>

    LC Connector
    Evolution and Development
    ...

    LC Connector
    Summary
    ...

    IEEE licensing letter
    ...


 5.5  Mini-MT

    The inning team with the winning technology
    AMP, HP, NTT, USconec, Siecor, Fujikura

    The issues ranked by IEEE 1394b
    1. low complexity
    2. Perfomrance
    3. size
    4. low loss
    5. low maintenance
    6. ...
    ...

    ???
    ANSI/TIA/EAI TR41.8.1 Update
    - Mini-MT was the only proposed duplex fiber optic connector ...
    ...

    Low Complexity:
    What does this mean?
    - Ease of Installation
    - Reduced number of Precision Parts
    - Easy Integration ...
    ...

    Low Complexity:
    Ease of Field Installtion of MT-RJ
    - No-Polish - No epoxy Means:
      - reduced number of tools - no special tooling
      - Little training required - ease of transition
      - Little or no set-up required - reduced time/outfitting
      - ...
      ...

    Low Complexity Interface
    Reduction of complex parts:
    TIA ...
    ...

    Low Complexity
    Reduced number of complex parts
    Manufacturer:
    - one ferrule vs. two ferrules
    - no alignment ...
    ...

    Low complexity
    Easy integration into cabling system:
    - reduced length connector fits short outlet boxes
    - No excess ...
    ...

    Low complexity
    easy integration into system:
    Commercially available fiber cable -- to hub -- on board -- commerically
    available fiber cable
    <<< multiple images >>>

    Low complexity
    The universal outlet and patch panel
    Problem:
    - No standard cutout for 8 ...
    ...
    ...

    Mini-MT Technology
    Enables connector manufacturers
    ...

    Low Complexity Ease of Use by technicians and users.
    We listened to the customer
    - The modified mini-mpo
      The MT-RJ
      - Same field-proven ferrule and alignment mechanisms
      ...

    Size
    MT-RJ Plug/Jack
    - Drop in replacement ...
    ...
    <<< two diagrams >>>

    Overall Complexity of the system:
    ...

    Proven Field Record
    MT Production Vollue (000)
    <<< chart >>>

    Performance
    - Ferrule Technology
      - over 10 year proven reliability
    - Mechanical splice
      - over 15 year proven reliability
      - not open to the environment
      - ...

    MT-RJ Easy Feld-Termination
    Pre-polished, epoxyless Jack
    - can be terminated with gel-filled mechanical splice ...
    ...

    [jacks and tools shown via overhead (as "profiles")]

    [simple demonstration of the installation process]

    Performance:
    <<< table >>>

    Performance:
    <<< diagram >>>

    Performance:
    <<< chart >>>

    Patent/Licensing Statement
    ...

    Mini-MT Team
    Statement of Direction ...
    ...

    Intermateability specs. ...
    ...

    Polarity
    ....

    Ergonomics
    ...

    Equipment connector
    ...

    Outside plant use
    ...

    Mini-MT
    The Reason to Change
    - Designed as a True End-to-End system ...
    ...

    <What about the license terms?  Can't really address, but are working
    on a packet.  No letter has been filed with the IEEE.  Licensing will
    cover front- and back-ends. ... Use an index-matching gel internal to
    the splice ... What level of pull load?  1.5 pounds is the minimum,
    but not sure about where we are, though we are higher.  We are less
    than the cost than an RJ ... Historically, pre-polished stubs cost.
    What can be done about this?  A premium for the cost seem compensated
    for by the labor, etc., costs.>

 6. Connector Selection

    There are 52 voters present.

    First round voting -- which do we eliminate first?

    fibrejack   -  7
    vf-45       - 17
    lc          - 11
    mini-mt     -  8

    <This is not the way that things usually work for run-offs.  Usually,
    you vote for who you want, then eliminate those who eliminate those
    that get the least number of votes. ... We agreed to do this in Maui,
    so we will need a motion to change the method.

    Moved by ???, seconded by Jerry Hauck, that we use the more traditional
    run-off method.  20 voted yes, and 10 voted no.  Therefore the motion
    carries, and we will use the traditional method, wherein the low vote
    getter is eliminated with each round.

    Second round --

    vf-45       - 18
    lc          - 14
    mini-mt     - 10

    Third round --

    vf-45       - 19
    lc          - 24

    Moved by Bob Campbell, and seconded by Jack Hollins the we recommend
    the LC connector to the parent p1394b as our selection of a fiber
    connector.
    For:         30
    Against:     10
    Abstentions: 12

    <Chair believes that we have nothing left to contribute, and should
    therefore recommend to the parent p1394b group that this group be
    disbanded.  Chair recommends that we so recommend.  There was some
    question as to whether this required a formal vote, with the chair
    stating that he feels that he can do this on a concensus.  Such a
    concensus was unanimous in favor of recommending disbandment.>

 7. Transceiver parameters
 8. Future Plans and Schedule
 9. AOB
10. Adjourn

=============================================================================
Attendance List

Richard Churchill
281-514-6984
richard.churchill@compaq.com

Masood Shariff
732-957-5479
mshariff@lucent.com

Robert Campbell
732-957-2669
rrcampbell@lucent.com

Phil Young
+44 1908 837247
youngp@euk.nec.co.uk

Dao-Long Chen
970-223-5100 x9461
dao-long.chen@symbios.com

John Fuller
425-703-3863
jfuller@microsoft.com

Farrukh Latif
610-712-7546
flatif@lucent.com

Peng Zhang
972-480-3109
pzhang@ti.com

John Smolka
972-480-1049
jsmolka@ti.com

Dave Instone
+44 1705 486363
dinstone@uk.xyratex.com

Ju-Ching Tang
510-623-8300 x5189
jctang@corp.cirrus.com

Reza Moattar
714-508-8731
reza.moattar@tsc.tdk.com

John Ta
714-573-6957
john.ta@tus.ssil.com

Paul Levy
602-752-6382
paul.levy@vlsi.com

Eric Deliot
+44 117 922 9539
ed@hplb.hpl.hp.com

Alistair Coles
+44 117 922 8750
anc@hplb.hpl.hp.com

Keith W. Heilmann
914-892-2413
kheilman@us.ibm.com

David K. Johnson
972-480-3632
dkjohnson@ti.com

Vilas Bhade
408-777-4723
vilas@wipro.com

Susumu Morikura
+81 6 906 4896
morikura@isl.mei.co.jp

Akihiro Miyachi
+81 462 65 2327
morikura@molex.com

Bill Pherigo
970-229-3586
wlp@fc.hp.com

Martin Sodos
408-969-4683
msodos@issiusa.com

Robert Liu
408-765-6549
robert_liu@ccm.intel.com

Todd Hudson
704-327-5815
todd_hudson@siecor.com

Norm Harris
408-957-2230
nharris@corp.adaptec.com

Ken Hall
717-986-3841
khall@amp.com

Charles Brill
717-592-6198
cebrill@amp.com

Bob Atkinson
717-592-4274
rdatkins@amp.com

Terry L. Bittner
908-704-3301
tlbittne@amp.com

John Hill
717-592-6375
jhill@amp.com

Oleg Awsienko
602-554-9666
oleg_awsienko@ccm.intel.com

James T. Doyle
602-554-2051
jdoyle@sedona.intel.com

Takatoshi Mizoguchi
+81 7456 5 1161
mizoguti@shijo.sharp.co.jp

Toru Ueda
+81 74265 4529
ueda@slab.thr.sharp.co.jp

Dick Scheel
408-982-5834
dicks@lsi.sel.sony.com

Ken Taylor
508-347-3309
ktaylor@bostonoptical.com

David Cook
512-984-3699
ddcook@mmm.com

Juan Pulido
512-984-5188
jmpulido@mmm.com

David Bean
607-974-4779
beandm@corning.com

Bob Scharf
407-254-7315
rscharf@pcore.com

Jack Merrow
425-486-2222
jmerrow@leviton-telcom.com

Karl Bergstrom
800-888-0211 x4563
mpeg007@aol.com

Ed Butler
602-554-0751
ebutler@ccm.intel.com

Sushant Verman
416-620-7400
sushant@lsil.com

Barry Colella
978-635-6380
bcolella@neccsd.com

Won Yoon
610-712-2503
wjy@aluxpo.lucent.com

Max Bassler
630-527-4490
mbassler@molex.com

Eric Hannah
408-765-4441
ehannah@mipos2.sc.intel.com

Del Hanson
408-435-6246
del_hanson@hp.com

Farrokh Mottahedin
408-324-7934
fmottahe@qntm.com

James Piccione
408-895-5136
james.piccione@smi.siemens.com

Prashant Kanhere
510-668-1773
prashant@macrodesigns.com

Ozay Octay
714-856-7180
ozay_oktay@cissc.canon.com

Firooz Farhoomand
408-653-4059
firoozf@ix.netcom.com

Yoshiro Nieda
+81 3 3245 8750
nieda@pluto.dti.ne.jp

Kenji Watanabe
+81 3 5448 5362
nabeken@sslab.sony.co.jp

Steve Bard
503-264-2923
steve_bard@mail.intel.com

Ron Soderstrom
507-253-6290
rons@vnet.ibm.com

Shuntaro Yamazaki
+81 44 856 2082
yamazaki@ccm.cl.nec.co.jp

Tomoki Saito
+81 44 856 2082
saito@ccm.cl.nec.co.jp

Takayuki Nyu
+81 44 856 2082
new@ccm.cl.nec.co.jp

Tatsuo Inoue
+81 3 5545 7813
inoue@ba2.so-nel.or.jp

Kazuki Nakamura
+81 8275 2 4151
kazuki-n@mars.dtinet.or.jp

Colin Whitby-Strevens
+44 1454 611500
colinws@bristol.st.com

David Wooten
281-514-7231
david.wooten@compaq.com

Stephen Finch
714-573-6808
steve.finch@tus.ssi1.com

Dave Gampell
408-435-6680
dave_gampell@hp.com

Marcus Kellerman
714-932-5000
marcus.c.kellerman@wdc.com

Bill Prouty
916-785-4631
bprouty@hp.com

Al Kelley
904-829-5600
akelley@tensolite.com

Palanisamy Mohanraj
602-554-4243
palanisamy_mohanraj@ccm.intel.com

Jerry Hauck
408-765-5528
jerry_hauck@ccm.intel.com

Michael Borgman
708-532-1800
mjbo@panduit.com

Don Wiencek
708-532-1800
dcw@panduit.com

Jack Hollins
408-957-2309
jack_hollins@eng.adaptec.com

Tatsuya Arai
805-522-7958
tatsuyaa@hiroseusa.com

Francesco Liburdi
607-748-0025
liburdif@hollingsworth.com

Dan Colegrove
408-765-1978
colegrove@us.ibm.com

Dave LaFollette
408-765-2587
dlafolle@mipos2.sc.intel.com

Oleg Awsienko
602-554-9666
oleg_awsienko@ccm.ch.intel.com

Toru Ueda
+81 743 65 4529
ueda@slab.thr.sharp.co.jp

Takatoshi Mizoguchi
+81 745 65 1161
mizoguti@shinjo.sharp.co.jp