Inventor · disambiguated record
Tadaji Fukuda
Also filed as: FUKUDA TADAJI
55 granted patents·927 citations·filing 1974–1995
99Inventor score
Top patents by PatentIndex Score
55 records- 0199US4265991AElectrophotographic photosensitive member and process for production thereofCANON KK·Filed 1978·Granted May 5, 1981·185 cites·20 claims
- 0298US4565731AImage-forming member for electrophotographyCANON KK·Filed 1982·Granted Jan 21, 1986·74 cites·13 claims
- 0398US4471042AImage-forming member for electrophotography comprising hydrogenated amorphous matrix of silicon and/or germaniumCANON KK·Filed 1979·Granted Sep 11, 1984·59 cites·84 claims
- 0485US4448801AProcess for forming deposition filmCANON KK·Filed 1983·Granted May 15, 1984·58 cites·3 claims
- 0581US4490453APhotoconductive member of a-silicon with nitrogenCANON KK·Filed 1981·Granted Dec 25, 1984·22 cites·61 claims
- 0678US4461820AAmorphous silicon electrophotographic image-forming member having an aluminum oxide coated substrateCANON KK·Filed 1982·Granted Jul 24, 1984·19 cites·24 claims
- 0777US4414319APhotoconductive member having amorphous layer containing oxygenCANON KK·Filed 1981·Granted Nov 8, 1983·33 cites·74 claims
- 0876US4461819AImage-forming member for electrophotographyCANON KK·Filed 1981·Granted Jul 24, 1984·21 cites·59 claims
- 0974US4451547AElectrophotographic α-Si(H) member and process for production thereofCANON KK·Filed 1980·Granted May 29, 1984·17 cites·21 claims
- 1072US4552824AElectrophotographic photosensitive member and process for production thereofCANON KK·Filed 1985·Granted Nov 12, 1985·14 cites·33 claims
- 1172US4507375AElectrophotographic photosensitive member and process for production thereofCANON KK·Filed 1984·Granted Mar 26, 1985·15 cites·17 claims
- 1271US4202937AElectrophotographic photosensitive member having no fatigue effectCANON KK·Filed 1977·Granted May 13, 1980·14 cites·14 claims
- 1370US4745041ACVD process for forming semiconducting film having hydrogenated germanium matrixCANON KK·Filed 1986·Granted May 17, 1988·11 cites·17 claims
- 1470US4347436APhotoelectric transducing element with high polymer substrateCANON KK·Filed 1980·Granted Aug 31, 1982·26 cites·5 claims
- 1569US4464451AElectrophotographic image-forming member having aluminum oxide layer on a substrateCANON KK·Filed 1982·Granted Aug 7, 1984·14 cites·167 claims
- 1669US4443529APhotoconductive member having an amorphous silicon photoconductor and a double-layer barrier layerCANON KK·Filed 1982·Granted Apr 17, 1984·24 cites·24 claims
- 1768US4557987APhotoconductive member having barrier layer and amorphous silicon charge generation and charge transport layersCANON KK·Filed 1981·Granted Dec 10, 1985·24 cites·79 claims
- 1868US4376888APhotoelectric conversion type information processing deviceCANON KK·Filed 1981·Granted Mar 15, 1983·24 cites·30 claims
- 1965US4359512ALayered photoconductive member having barrier of silicon and halogenCANON KK·Filed 1981·Granted Nov 16, 1982·21 cites·36 claims
- 2064US4539283AAmorphous silicon photoconductive memberCANON KK·Filed 1981·Granted Sep 3, 1985·16 cites·41 claims
- 2163US4369372APhoto electro transducer deviceCANON KK·Filed 1980·Granted Jan 18, 1983·20 cites·25 claims
- 2262US5382487AElectrophotographic image forming memberCANON KK·Filed 1994·Granted Jan 17, 1995·12 cites·72 claims
- 2361US4613558AHydrogenated amorphous silicon photosensitive method for electrophotographyCANON KK·Filed 1985·Granted Sep 23, 1986·10 cites·6 claims
- 2460US5640663AElectrophotographic method using a cleaning blade to remove residual tonerCANON KK·Filed 1995·Granted Jun 17, 1997·13 cites·14 claims
- 2560US4557990AHydrogenated amorphous silicon photosensitive member for electrophotographyCANON KK·Filed 1983·Granted Dec 10, 1985·10 cites·6 claims
- 2658US4670369AImage-forming member for electrophotographyCANON KK·Filed 1986·Granted Jun 2, 1987·9 cites·7 claims
- 2758US4479149APhoto-electric converter and image forming apparatus incorporating the sameCANON KK·Filed 1980·Granted Oct 23, 1984·17 cites·3 claims
- 2854US4664998AElectrophotographic image forming member having hydrogenated amorphous photoconductive layer including carbonCANON KK·Filed 1985·Granted May 12, 1987·6 cites·29 claims
- 2954US4551405AImage forming process employing member with a depletion layerCANON KK·Filed 1983·Granted Nov 5, 1985·8 cites·21 claims
- 3054US4420546AMember for electrophotography with a-Si and c-Si layersCANON KK·Filed 1981·Granted Dec 13, 1983·8 cites·9 claims
- 3153US5258250APhotoconductive memberCANON KK·Filed 1992·Granted Nov 2, 1993·15 cites·25 claims
- 3250US5582947AGlow discharge process for making photoconductive memberCANON KK·Filed 1995·Granted Dec 10, 1996·13 cites·38 claims
- 3350US4830946ACVD process for forming an image forming member for electrophotographyCANON KK·Filed 1988·Granted May 16, 1989·5 cites·15 claims
- 3448US5585149ACVD method for forming a photoconductive hydrogenated a-Si layerCANON KK·Filed 1995·Granted Dec 17, 1996·7 cites·20 claims
- 3548US4416962AElectrophotographic member having aluminum oxide layerCANON KK·Filed 1981·Granted Nov 22, 1983·6 cites·27 claims
- 3646US5756250AElectrophotographic method using a cleaning blade to remove residual tonerCANON KK·Filed 1995·Granted May 26, 1998·6 cites·4 claims
- 3746US4702981APhotoconductive member and support for said photoconductive memberCANON KK·Filed 1986·Granted Oct 27, 1987·5 cites·23 claims
- 3846US4279000APhotoelectric information input apparatusCANON KK·Filed 1979·Granted Jul 14, 1981·6 cites·4 claims
- 3945US4525442APhotoconductive member containing an amorphous boron layerCANON KK·Filed 1984·Granted Jun 25, 1985·9 cites·14 claims
- 4045US4471694APrinting process for transferring fixed image from masterCANON KK·Filed 1983·Granted Sep 18, 1984·5 cites·5 claims
- 4145US4241158AVacuum deposited electrophotographic photosensitive memberCANON KK·Filed 1978·Granted Dec 23, 1980·4 cites·7 claims
- 4242USRE35198EImage forming member for electrophotographyCANON KK·Filed 1993·Granted Apr 2, 1996·5 cites·62 claims
- 4341US4472492AMethod for fabricating and annealing an electrophotographic image forming memberCANON KK·Filed 1983·Granted Sep 18, 1984·7 cites·24 claims
- 4441US4315063AElectrophotographic photosensitive member having a halogen containing charge injection layerCANON KK·Filed 1978·Granted Feb 9, 1982·3 cites·8 claims
- 4539US5658703AElectrophotographic photosensitive member and process for production thereofCANON KK·Filed 1995·Granted Aug 19, 1997·3 cites·9 claims
- 4639US4609601AProcess of imaging an amorphous Si(C) photoconductive memberCANON KK·Filed 1985·Granted Sep 2, 1986·4 cites·21 claims
- 4739US3990894AMethod of preparing photosensitive element for use in electrophotographyKATSURAGAWA DENKI KK·Filed 1974·Granted Nov 9, 1976·3 cites·5 claims
- 4838US5141836AMethod of forming a photoconductive member with silicon, hydrogen and/or halogen and carbonCANON KK·Filed 1991·Granted Aug 25, 1992·5 cites·5 claims
- 4937US5753936AImage forming member for electrophotographyCANON KK·Filed 1995·Granted May 19, 1998·4 cites·16 claims
- 5033US5561024AMethod of making electrophotographic memberFiled 1995·Granted Oct 1, 1996·2 cites·11 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →