Inventor · disambiguated record
Akio Kozima
Also filed as: KOZIMA AKIO · SASAKI MASAOMI
15 granted patents·307 citations·filing 1976–1980
94Inventor score
Files withRICOH KK15
Top patents by PatentIndex Score
15 records- 0196US4256821AElectrophotographic element with carbazole-phenyhydrazone charge transport layerRICOH KK·Filed 1979·Granted Mar 17, 1981·113 cites·15 claims
- 0295US4272598AElectrophotographic material containing disazo compoundsRICOH KK·Filed 1978·Granted Jun 9, 1981·23 cites·54 claims
- 0389US4279981AElectrophotographic elements containing trisazo compoundsRICOH KK·Filed 1978·Granted Jul 21, 1981·28 cites·66 claims
- 0481US4293628AElectrophotographic elements containing disazo compoundsRICOH KK·Filed 1978·Granted Oct 6, 1981·11 cites·24 claims
- 0580US4299896AElectrophotographic sensitive materials containing a disazo pigmentRICOH KK·Filed 1978·Granted Nov 10, 1981·19 cites·16 claims
- 0677US4264695AElectrophotographic photosensitive material with electron donors and electron acceptorsRICOH KK·Filed 1980·Granted Apr 28, 1981·37 cites·9 claims
- 0775US4314015AElectrophotographic sensitive materials containing disazo compoundsRICOH KK·Filed 1980·Granted Feb 2, 1982·18 cites·16 claims
- 0875US4134761A3-(9-Fluorenylidene)carbazole derivatives and electrophotographic light-sensitive material containing sameRICOH KK·Filed 1977·Granted Jan 16, 1979·7 cites·4 claims
- 0970US4301224AElectrophotographic element with a combination of binder resinsRICOH KK·Filed 1980·Granted Nov 17, 1981·15 cites·11 claims
- 1070US4242260A2-Hydroxy-3-carbonylanilinonaphth-1-yl disazo derivatives and 1-phenyl-3-methyl-5-hydroxypyrazol-4-yl disazo derivatives of 1,4-bis(4-aminostyryl) benzeneRICOH KK·Filed 1978·Granted Dec 30, 1980·10 cites·28 claims
- 1163US4426327A3,6-Disazo-9-ethyl carbazole compoundsRICOH KK·Filed 1980·Granted Jan 17, 1984·11 cites·3 claims
- 1263US4135928AElectrophotographic light-sensitive memberRICOH KK·Filed 1977·Granted Jan 23, 1979·9 cites·5 claims
- 1357US4148638APhotoconductive sensitive material with a trinitro-11-indeno[1,2-b]quinoxaline-11-oneRICOH KK·Filed 1977·Granted Apr 10, 1979·3 cites·22 claims
- 1436US4348470AElectrophotographic element containing disazo compoundsRICOH KK·Filed 1979·Granted Sep 7, 1982·3 cites·5 claims
- 1531US4108656APhotoconductive member having a charge generating pigment and 2,4,7-trinitrothioxanthone as charge transport materialRICOH KK·Filed 1976·Granted Aug 22, 1978·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →