Assignee
SEIKO GIKEN KK
JP·147 granted patents·25 pending applications·2,863 citations·filing 1981–2025
Top patents by PatentIndex Score
172 records- 0199US7118284B2Optical connector plug, optical connector adapter and optical connectorSEIKO GIKEN KK·Filed 2005·Granted Oct 10, 2006·126 cites·20 claims
- 0298US4979334AOptical fiber end-surface polishing deviceSEIKO GIKEN KK·Filed 1989·Granted Dec 25, 1990·104 cites·16 claims
- 0397US4831784APolishing apparatus for end faces of optical fibersSEIKO GIKEN KK·Filed 1988·Granted May 23, 1989·87 cites·14 claims
- 0496US11579372B2Tool for plug, slider, plug, and cable with plugSEIKO GIKEN KK·Filed 2020·Granted Feb 14, 2023·5 cites·13 claims
- 0596US7118283B2Optical connector plug, optical connector adapter and optical connectorSEIKO GIKEN KK·Filed 2005·Granted Oct 10, 2006·55 cites·12 claims
- 0695US10042129B2Duplex optical connector plug and polarity reversal method of duplex optical connector plugSEIKO GIKEN KK·Filed 2017·Granted Aug 7, 2018·16 cites·20 claims
- 0794US11892684B2Tool for plug, slider, plug, and cable with plugSEIKO GIKEN KK·Filed 2023·Granted Feb 6, 2024·2 cites·4 claims
- 0892US9958623B1Tool for plug, plug and cable with plugSEIKO GIKEN KK·Filed 2017·Granted May 1, 2018·11 cites·9 claims
- 0992US5216846AMethod and apparatus for grinding foremost end surface of a ferruleSEIKO GIKEN KK·Filed 1992·Granted Jun 8, 1993·80 cites·16 claims
- 1091US9941631B1Plug and cable with plugSEIKO GIKEN KK·Filed 2017·Granted Apr 10, 2018·12 cites·6 claims
- 1189US8936400B2Optical connector adapter with shutterSEIKO GIKEN KK·Filed 2014·Granted Jan 20, 2015·9 cites·6 claims
- 1288US11474305B2End face polishing device for optical fiber ferruleSEIKO GIKEN KK·Filed 2018·Granted Oct 18, 2022·3 cites·16 claims
- 1388US7093983B2Optical connector plug and optical connectorSEIKO GIKEN KK·Filed 2004·Granted Aug 22, 2006·40 cites·13 claims
- 1487US7507031B2Optical connector component and optical connector using the sameSEIKO GIKEN KK·Filed 2007·Granted Mar 24, 2009·28 cites·19 claims
- 1587US5946436AStructure of optical connector and aligning methodSEIKO GIKEN KK·Filed 1997·Granted Aug 31, 1999·140 cites·15 claims
- 1687US5267342ALight attenuating element and method of producing the sameSEIKO GIKEN KK·Filed 1992·Granted Nov 30, 1993·79 cites·22 claims
- 1786US6335993B1Rotary switch type optical fiber switchSEIKO GIKEN KK·Filed 1999·Granted Jan 1, 2002·74 cites·11 claims
- 1886US5351445AApparatus for grinding end faces of ferrules together with optical fibers each firmly received in ferrulesSEIKO GIKEN KK·Filed 1993·Granted Oct 4, 1994·50 cites·13 claims
- 1986US5265381AMethod for grinding ferrules for ribbon type optical fibersSEIKO GIKEN KK·Filed 1992·Granted Nov 30, 1993·52 cites·14 claims
- 2086US4953941AOptical fiber connecting deviceSEIKO GIKEN KK·Filed 1988·Granted Sep 4, 1990·55 cites·6 claims
- 2185US7860363B2Optical connector kitSEIKO GIKEN KK·Filed 2008·Granted Dec 28, 2010·24 cites·1 claims
- 2284US7153035B2Optical connector plug and optical connectorSEIKO GIKEN KK·Filed 2005·Granted Dec 26, 2006·14 cites·17 claims
- 2383US5066094AVariable optical fiber light attenuatorSEIKO GIKEN KK·Filed 1991·Granted Nov 19, 1991·63 cites·9 claims
- 2482US9366827B2Optical connector assembly and optical connector adapter with shutterSEIKO GIKEN KK·Filed 2015·Granted Jun 14, 2016·4 cites·15 claims
- 2582US6724959B1Wedged and lensed optical fiberSEIKO GIKEN KK·Filed 2000·Granted Apr 20, 2004·28 cites·6 claims
- 2682US5472334AInjection molding die for injection-molding base boardsSEIKO GIKEN KK·Filed 1993·Granted Dec 5, 1995·47 cites·11 claims
- 2781US10042126B2Ferrule polishing method of duplex optical connector plugSEIKO GIKEN KK·Filed 2017·Granted Aug 7, 2018·3 cites·3 claims
- 2881US6883976B2Optical fiber ferrule assembly and optical module and optical connector using the sameSEIKO GIKEN KK·Filed 2001·Granted Apr 26, 2005·21 cites·3 claims
- 2981US5682452AOptical fiber ferrule and optical couplerSEIKO GIKEN KK·Filed 1996·Granted Oct 28, 1997·58 cites·5 claims
- 3081US5127084AVariable light attenuator of multiple-fiber ribbonsSEIKO GIKEN KK·Filed 1991·Granted Jun 30, 1992·54 cites·12 claims
- 3180US11329418B2Jig for connector plug, connector plug and cable with connector plugSEIKO GIKEN KK·Filed 2021·Granted May 10, 2022·1 cites·8 claims
- 3280US9459413B2Optical fiber connector cleanerSEIKO GIKEN KK·Filed 2014·Granted Oct 4, 2016·3 cites·12 claims
- 3380US6751374B2Light-signal delaying deviceSEIKO GIKEN KK·Filed 2002·Granted Jun 15, 2004·26 cites·7 claims
- 3480US5601474APolishing disc of spherical surface polishing device for optical fiber end surface and method for polishing spherical surface of optical fiber end surfaceSEIKO GIKEN KK·Filed 1994·Granted Feb 11, 1997·35 cites·8 claims
- 3578USD980167SOptical fiber connectorSEIKO GIKEN KK·Filed 2021·Granted Mar 7, 2023·6 cites·1 claims
- 3678US7377699B2Optical connectorSEIKO GIKEN KK·Filed 2006·Granted May 27, 2008·11 cites·4 claims
- 3778US7121734B2FerruleSEIKO GIKEN KK·Filed 2002·Granted Oct 17, 2006·19 cites·22 claims
- 3878US5792492AOptical disk molding apparatus equipped with liquid sealing meansSEIKO GIKEN KK·Filed 1996·Granted Aug 11, 1998·59 cites·8 claims
- 3978US5547418AOptical fiber end-surface polishing deviceSEIKO GIKEN KK·Filed 1995·Granted Aug 20, 1996·46 cites·2 claims
- 4077US5257334ARibbon type optical fiber connectorSEIKO GIKEN KK·Filed 1992·Granted Oct 26, 1993·45 cites·3 claims
- 4177US2026086297A1Optical connector plug and lock toolSEIKO GIKEN KK·Filed 2025·Application pending·0 cites
- 4276US6077154APolishing apparatus for optical fiber end surfaceSEIKO GIKEN KK·Filed 1997·Granted Jun 20, 2000·48 cites·15 claims
- 4375US11571784B2Optical fiber ferrule polishing holderSEIKO GIKEN KK·Filed 2019·Granted Feb 7, 2023·1 cites·6 claims
- 4475US11543618B2Lens unitSEIKO GIKEN KK·Filed 2020·Granted Jan 3, 2023·1 cites·20 claims
- 4575US6547653B2Ferrule holder assembly for optical-fiber-end-face grinding apparatusSEIKO GIKEN KK·Filed 2000·Granted Apr 15, 2003·13 cites·9 claims
- 4675US6165055AOptical fiber end surface polishing apparatusSEIKO GIKEN KK·Filed 1999·Granted Dec 26, 2000·38 cites·5 claims
- 4775US4747659AOptical fiber connectorSEIKO GIKEN KK·Filed 1986·Granted May 31, 1988·34 cites·18 claims
- 4874US5136681AOptical powder attenuator of variable attenuation typeSEIKO GIKEN KK·Filed 1991·Granted Aug 4, 1992·58 cites·5 claims
- 4974US2026061678A1In-mold coating injection device and in-mold coating injection method using the sameSEIKO GIKEN KK·Filed 2025·Application pending·0 cites
- 5073US12070835B2Placing memberSEIKO GIKEN KK·Filed 2022·Granted Aug 27, 2024·0 cites·10 claims
Showing the top 50 of 172 patent records by PatentIndex Score.
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