Inventor · disambiguated record
Hirotoshi Nagata
Also filed as: NAGATA HIROTOSHI
14 granted patents·220 citations·filing 1993–2005
93Inventor score
Files withSUMITOMO OSAKA CEMENT CO LTD7NEC CORP3JDS UNIPHASE CORP2SUMITOMO CEMENT CO1SUMITOMO CEMENT COMPANY LTD1
Top patents by PatentIndex Score
14 records- 0184US6956980B2Optical waveguide type optical modulator and production method thereforSUMITOMO OSAKA CEMENT CO LTD·Filed 2001·Granted Oct 18, 2005·30 cites·8 claims
- 0283US7231101B2Electro-optic waveguide device capable of suppressing bias point DC drift and thermal bias point shiftJDS UNIPHASE CORP·Filed 2005·Granted Jun 12, 2007·8 cites·17 claims
- 0373US7171063B2Controllable electro-optic device having substrate trenches between electrodesJDS UNIPHASE CORP·Filed 2004·Granted Jan 30, 2007·13 cites·18 claims
- 0468US5526448AOptical waveguide modulator having a reduced D.C. driftSUMITOMO CEMENT COMPANY LTD·Filed 1994·Granted Jun 11, 1996·35 cites·24 claims
- 0567US5359690ACutting method and apparatus for removing a secondary coating layer from a jacketed optical fiberSUMITOMO CEMENT CO·Filed 1993·Granted Oct 25, 1994·35 cites·25 claims
- 0663US6539153B2Light limiterNEC CORP·Filed 2001·Granted Mar 25, 2003·7 cites·5 claims
- 0762US5727105APackage structure for optical element and fibers and composite structure thereofSUMITOMO OSAKA CEMENT CO LTD·Filed 1996·Granted Mar 10, 1998·27 cites·2 claims
- 0854US6218658B1Optical fuseNEC CORP·Filed 1999·Granted Apr 17, 2001·21 cites·20 claims
- 0951US6583480B1Electro-optical element having protective film on top and side surfaces of buffer layerSUMITOMO OSAKA CEMENT CO LTD·Filed 2000·Granted Jun 24, 2003·4 cites·5 claims
- 1048US5613026APackage structure for optical element and fibers and composite structure thereofSUMITOMO OSAKA CEMENT CO LTD·Filed 1994·Granted Mar 18, 1997·14 cites·29 claims
- 1147US6134372ALight intensity attenuator and attenuating methodSUMITOMO OSAKA CEMENT CO LTD·Filed 1998·Granted Oct 17, 2000·15 cites·14 claims
- 1245US6806113B2Optical waveguide device and method for forming optical waveguide deviceSUMITOMO OSAKA CEMENT CO LTD·Filed 2001·Granted Oct 19, 2004·2 cites·6 claims
- 1342US6233385B1Light limiterNEC CORP·Filed 1999·Granted May 15, 2001·9 cites·8 claims
- 1436US6980705B2Optical waveguide deviceSUMITOMO OSAKA CEMENT CO LTD·Filed 2001·Granted Dec 27, 2005·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →