Inventor · disambiguated record
Haruhiko Kuwatsuka
Also filed as: KUWATSUKA HARUHIKO
16 granted patents·73 citations·filing 1989–2016
92Inventor score
Top patents by PatentIndex Score
16 records- 0187US9276162B2Semiconductor photodetector and method for manufacturing the sameFUJITSU LTD·Filed 2014·Granted Mar 1, 2016·3 cites·12 claims
- 0285US7875946B2Semiconductor photodetector that causes avalanche multiplication to occur only at photodetector portion located at central portion of mesa structureFUJITSU LTD·Filed 2005·Granted Jan 25, 2011·7 cites·18 claims
- 0382US8031394B2Wavelength conversion system, optical integrated device and wavelength conversion methodFUJITSU LTD·Filed 2008·Granted Oct 4, 2011·6 cites·13 claims
- 0477US9395504B2System to control wavelength and method to control wavelengthSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Jul 19, 2016·4 cites·15 claims
- 0575US7436586B2Wavelength conversion system, optical integrated device and wavelength conversion methodFUJITSU LTD·Filed 2006·Granted Oct 14, 2008·5 cites·12 claims
- 0660US7507600B2Semiconductor photodetecting device and method for fabricating the sameFUJITSU LTD·Filed 2005·Granted Mar 24, 2009·2 cites·10 claims
- 0760US7295366B2Optical integrated device and optical moduleFUJITSU LTD·Filed 2006·Granted Nov 13, 2007·1 cites·11 claims
- 0860US6542286B2Wavelength converting device and converting methodFUJITSU LTD·Filed 2001·Granted Apr 1, 2003·7 cites·14 claims
- 0958US6943422B2Semiconductor photodetecting device and method for fabricating the sameFUJITSU LTD·Filed 2003·Granted Sep 13, 2005·5 cites·15 claims
- 1056US8772896B2Semiconductor photodetector that causes avalanche multiplication to occur only at photodetector portion located at central portion of mesa structureYASUOKA NAMI·Filed 2010·Granted Jul 8, 2014·0 cites·1 claims
- 1155US6885039B2Semiconductor photodetector and avalanche photodiodeFUJITSU LTD·Filed 2003·Granted Apr 26, 2005·6 cites·8 claims
- 1254US4984032ASemiconductor photodiodeFUJITSU LTD·Filed 1989·Granted Jan 8, 1991·14 cites·20 claims
- 1349US9444221B2Laser apparatus and method to re-tune emission wavelength tunable LDSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Sep 13, 2016·0 cites·16 claims
- 1446US5751758APhase conjugate wave generating device, wavelength converting method, optical dispersion compensating method and multi-wavelength light generating deviceFUJITSU LTD·Filed 1996·Granted May 12, 1998·13 cites·14 claims
- 1544US9819149B2Optical transmitter implementing wavelength tunable diodeSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Nov 14, 2017·0 cites·15 claims
- 1642US10901242B2Driving device and driving method for phase controller, and optical switchAIST·Filed 2016·Granted Jan 26, 2021·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →