Inventor · disambiguated record
Hirokazu Negishi
Also filed as: NEGISHI HIROKAZU
11 granted patents·2 pending applications·657 citations·filing 1969–2011
93Inventor score
Top patents by PatentIndex Score
13 records- 0197US4894777AOperator mental condition detectorCANON KK·Filed 1987·Granted Jan 16, 1990·303 cites·65 claims
- 0293US6504089B1System for and method of searching music data, and recording medium for use therewithCANON KK·Filed 1998·Granted Jan 7, 2003·187 cites·13 claims
- 0373USD334750SLoudspeakerCANON RES CENTRE EUROPE LIMITED·Filed 1991·Granted Apr 13, 1993·17 cites·1 claims
- 0470US5988314ASound output systemCANON KK·Filed 1993·Granted Nov 23, 1999·46 cites·6 claims
- 0566US3948657APhotosensitive matter for electrophotography and method of the production thereofCANON KK·Filed 1969·Granted Apr 6, 1976·13 cites·14 claims
- 0658US4004851AOptical device with means for reducing internal reflectionsNEGISHI HIROKAZU·Filed 1972·Granted Jan 25, 1977·18 cites·3 claims
- 0754US4168119AElectrophotographic copying apparatus utilizing liquid developerCANON KK·Filed 1978·Granted Sep 18, 1979·8 cites·3 claims
- 0850US5144670ASound output systemCANON KK·Filed 1988·Granted Sep 1, 1992·23 cites·17 claims
- 0946US4957184ALoudspeaker enclosureCANON KK·Filed 1989·Granted Sep 18, 1990·18 cites·10 claims
- 1044US4870690AAudio signal transmission systemCANON KK·Filed 1988·Granted Sep 26, 1989·17 cites·17 claims
- 1140US2004062404A1Speaker systemCANON KK·Filed 2003·Application pending·0 cites
- 1238US2013230196A1Oscillatory wave motor and sound generation device using oscillatory wave motor as drive sourceNEGISHI HIROKAZU·Filed 2011·Application pending·0 cites
- 1337US4252883AProcess for producing electrophotographic photosensitive memberCANON KK·Filed 1980·Granted Feb 24, 1981·7 cites·2 claims
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