Inventor · disambiguated record
Hisao Fujita
Also filed as: FUJITA HISAO
8 granted patents·156 citations·filing 1979–1996
87Inventor score
Top patents by PatentIndex Score
8 records- 0192US5889748AObject lens and optical head for reproducing data from optical disks in different thickness of substrateHITACHI LTD·Filed 1996·Granted Mar 30, 1999·81 cites·19 claims
- 0284US4273843AMethod of detecting toner concentration in electrophotographic copying machineKONISHIROKU PHOTO IND·Filed 1979·Granted Jun 16, 1981·22 cites·7 claims
- 0362US4501475AZoom lensKONISHIROKU PHOTO IND·Filed 1982·Granted Feb 26, 1985·19 cites·9 claims
- 0446US4276854AApparatus for detecting toner densityKONISHIROKU PHOTO IND·Filed 1979·Granted Jul 7, 1981·5 cites·4 claims
- 0543US4802721AScanning optical systemKONISHIROKU PHOTO IND·Filed 1987·Granted Feb 7, 1989·10 cites·5 claims
- 0642US4767201AWide angle lensKONISHIROKU PHOTO IND·Filed 1985·Granted Aug 30, 1988·11 cites·18 claims
- 0735US4688903AWide angle lensKONISHIROKU PHOTO IND·Filed 1985·Granted Aug 25, 1987·7 cites·6 claims
- 0829US4926195AImage recording apparatusKONISHIROKU PHOTO IND·Filed 1988·Granted May 15, 1990·1 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →