Inventor · disambiguated record
Hirochika Nakajima
Also filed as: NAKAJIMA HIROCHIKA
5 granted patents·185 citations·filing 1984–1999
84Inventor score
Top patents by PatentIndex Score
5 records- 0187US4806442ASpatial phase modulating masks and production processes thereof, and processes for the formation of phase-shifted diffraction gratingsFUJITSU LTD·Filed 1986·Granted Feb 21, 1989·49 cites·25 claims
- 0287US4637027ALaser light source deviceFUJITSU LTD·Filed 1984·Granted Jan 13, 1987·32 cites·10 claims
- 0384US6236786B1Substrate with optical waveguide and method of making the sameBROTHER IND LTD·Filed 1999·Granted May 22, 2001·72 cites·18 claims
- 0449US4730884ABipolar voltage controlled optical switch using intersecting waveguidesFUJITSU LTD·Filed 1986·Granted Mar 15, 1988·14 cites·15 claims
- 0548US5080486ASpectrum measuring equipment utilizing double-image polarizing elementFUJITSU LTD·Filed 1990·Granted Jan 14, 1992·18 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →