Inventor · disambiguated record
Osamu Doi
Also filed as: DOI OSAMU
5 granted patents·98 citations·filing 1981–2021
80Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD2MINOLTA CAMERA KK1TOKYO MOTRONICS CO LTD1UNITIKA LTD1
Top patents by PatentIndex Score
5 records- 0183US4365041AResin composition comprising water-soluble polyamide and vinyl alcohol-based polymerUNITIKA LTD·Filed 1981·Granted Dec 21, 1982·49 cites·21 claims
- 0279US5204204ACarrier for developing electrostatic latent imageMINOLTA CAMERA KK·Filed 1991·Granted Apr 20, 1993·27 cites·18 claims
- 0364US5684641AObjective lens and optical head apparatus using the objective lensMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Nov 4, 1997·17 cites·14 claims
- 0442US12385532B2Electromagnetic braking deviceTOKYO MOTRONICS CO LTD·Filed 2021·Granted Aug 12, 2025·0 cites·10 claims
- 0536US5634177AApparatus for developing an electrostatic latent image with a non-magnetic tonerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted May 27, 1997·5 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →