Inventor · disambiguated record
Kei Takahata
Also filed as: MURAKAMI HAJIME · TAKAHATA KEI
5 granted patents·1 pending application·81 citations·filing 1976–2011
81Inventor score
Top patents by PatentIndex Score
6 records- 0184US4386146ADye sensitized titanium dioxide electrophotographic photosensitive materialsISHIHARA MINING & CHEMICAL CO·Filed 1981·Granted May 31, 1983·37 cites·18 claims
- 0275US4144184ALiquid developerISHIHARA MINING & CHEMICAL CO·Filed 1978·Granted Mar 13, 1979·16 cites·10 claims
- 0358US4731226AGas sensorFIGARO ENG·Filed 1986·Granted Mar 15, 1988·20 cites·6 claims
- 0441US4525441AMulticolor electrophotographic process using TiO2ISHIHARA MINING & CHEMICAL CO·Filed 1982·Granted Jun 25, 1985·5 cites·16 claims
- 0539US4150986ADoped TiO2 electrophotographic photosensitive materialsISHIHARA MINING & CHEMICAL CO·Filed 1976·Granted Apr 24, 1979·3 cites·15 claims
- 0634US2011182298A1Communication apparatus, medium and communication methodSHIMIZU YOSHIHIKO·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →