Inventor · disambiguated record
Ichiro Ikushima
Also filed as: IKUSHIMA ICHIRO
6 granted patents·234 citations·filing 1977–1987
86Inventor score
Files withHITACHI LTD6
Top patents by PatentIndex Score
6 records- 0195US4199222AOptical device with a laser-to-fiber couplerHITACHI LTD·Filed 1977·Granted Apr 22, 1980·97 cites·14 claims
- 0284US4375037AReceiving circuitHITACHI LTD·Filed 1981·Granted Feb 22, 1983·31 cites·10 claims
- 0378US4774480APhase-locked loop having separate smoothing and loop filtersHITACHI LTD·Filed 1987·Granted Sep 27, 1988·31 cites·16 claims
- 0470US4174491AMount for a light emitting deviceHITACHI LTD·Filed 1978·Granted Nov 13, 1979·29 cites·15 claims
- 0566US4749961AVoltage controlled oscillator and phase-locked loop using itHITACHI LTD·Filed 1987·Granted Jun 7, 1988·26 cites·20 claims
- 0657US4741595AOptical transmission deviceHITACHI LTD·Filed 1985·Granted May 3, 1988·20 cites·7 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →