Inventor · disambiguated record
Kazuo Koya
Also filed as: KOYA KAZUO
24 granted patents·1 pending application·532 citations·filing 1983–2001
96Inventor score
Files withSHINETSU CHEMICAL CO19HITACHI CABLE3KOKUSAI DENSHIN DENWA CO LTD1RIKAGAKU KENKYUSHO1SHINETSU QUARTZ PROD1
Top patents by PatentIndex Score
25 records- 0193US5404415AOptical fiber coupler and method for preparing sameSHINETSU CHEMICAL CO·Filed 1994·Granted Apr 4, 1995·141 cites·6 claims
- 0288US4650511AMethod for the preparation of a dehydrated quartz glass material for light transmissionSHINETSU CHEMICAL CO·Filed 1985·Granted Mar 17, 1987·67 cites·4 claims
- 0383US5246475AMethod for preparing a fused silica glass body co-doped with a rare earth element and aluminumSHINETSU CHEMICAL CO·Filed 1992·Granted Sep 21, 1993·34 cites·7 claims
- 0477US4690504AQuartz glass-made optical fibers and a method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1985·Granted Sep 1, 1987·37 cites·5 claims
- 0575US5712941ARare earth element-doped multiple-core optical fiber and method for fabricating the sameHITACHI CABLE·Filed 1996·Granted Jan 27, 1998·42 cites·15 claims
- 0674US5570448ARare earth element-doped multiple-core optical fiber, method for fabricating the same, and optical amplifier using the sameHITACHI CABLE·Filed 1995·Granted Oct 29, 1996·23 cites·16 claims
- 0766US5408309AApparatus and method for inspecting elliplicity and eccentricity of optical fiber preformsSHINETSU CHEMICAL CO·Filed 1993·Granted Apr 18, 1995·24 cites·10 claims
- 0862US6600857B1Grating optical fiber, and optical fiber base material suitable for gratingSHINETSU CHEMICAL CO·Filed 2000·Granted Jul 29, 2003·3 cites·5 claims
- 0961US6157758AGrating optical fiber, and optical fiber base material suitable for gratingSHINETSU CHEMICAL CO·Filed 1999·Granted Dec 5, 2000·13 cites·10 claims
- 1060US4772644AMethod for resin encapsulation of a semiconductor device and a resin composition thereforSHINETSU CHEMICAL CO·Filed 1983·Granted Sep 20, 1988·12 cites·1 claims
- 1157US5706124ARare earth element-doped optical fiber amplifierHITACHI CABLE·Filed 1996·Granted Jan 6, 1998·20 cites·6 claims
- 1257US5406374AMethod for detecting bubbles and inclusions present in optical fiber preform and apparatus for detecting sameSHINETSU CHEMICAL CO·Filed 1993·Granted Apr 11, 1995·18 cites·19 claims
- 1356US7015163B2Glass member resistant to plasma corrosionSHINETSU QUARTZ PROD·Filed 2001·Granted Mar 21, 2006·2 cites·2 claims
- 1456US4874416ABase material of optical fibers and a method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1988·Granted Oct 17, 1989·12 cites·2 claims
- 1555US5295219ASupporting member for optical fiber couplerSHINETSU CHEMICAL CO·Filed 1992·Granted Mar 15, 1994·22 cites·2 claims
- 1652US4608071AMethod for reducing diameter of a glass rod or tube by drawingSHINETSU CHEMICAL CO·Filed 1985·Granted Aug 26, 1986·11 cites·5 claims
- 1750US5260816AOptical amplifier with erbium-doped fiberKOKUSAI DENSHIN DENWA CO LTD·Filed 1992·Granted Nov 9, 1993·11 cites·1 claims
- 1846US6301412B1Apparatus and method for making multi-branching optical couplerSHINETSU CHEMICAL CO·Filed 1998·Granted Oct 9, 2001·15 cites·20 claims
- 1940US5078488AMethod and apparatus for determining refractive index distributionRIKAGAKU KENKYUSHO·Filed 1990·Granted Jan 7, 1992·9 cites·11 claims
- 2035US6549711B1Soliton pulse compression optical fiber and method for making soliton pulse compression optical fiberSHINETSU CHEMICAL CO·Filed 1999·Granted Apr 15, 2003·3 cites·21 claims
- 2135US5420950AWide wavelength range-optical fiber coupler and method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1994·Granted May 30, 1995·6 cites·8 claims
- 2232US5671309AWide-band optical fiber coupler and method for preparing the sameSHINETSU CHEMICAL CO·Filed 1995·Granted Sep 23, 1997·4 cites·5 claims
- 2332US2001002219A1Multi-branching optical couplerSHINETSU CHEMICAL CO·Filed 2000·Application pending·0 cites
- 2429US5440420AOptical amplifierSHINETSU CHEMICAL CO·Filed 1994·Granted Aug 8, 1995·2 cites·5 claims
- 2528US5329602AOptical fiber couplerSHINETSU CHEMICAL CO·Filed 1993·Granted Jul 12, 1994·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →