Inventor · disambiguated record
Yutaka Hirai
Also filed as: AIGA MAKOTO · HASEGAWA SEIJI · HIRAI YUTAKA
91 granted patents·2,821 citations·filing 1973–1996
99Inventor score
Top patents by PatentIndex Score
91 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
- 0497US4766477ASemiconductor device including a semiconductor layer having a polycrystalline silicon film with selected atomic constituencyCANON KK·Filed 1986·Granted Aug 23, 1988·140 cites·20 claims
- 0596US5769950ADevice for forming deposited filmCANON KK·Filed 1995·Granted Jun 23, 1998·236 cites·7 claims
- 0695US4740829ASemiconductor device having a thin layer comprising germanium atoms as a matrix with a restricted range of hydrogen atom concentrationCANON KK·Filed 1986·Granted Apr 26, 1988·94 cites·11 claims
- 0795US4070401AMethod for the preparation of a halogenated aromatic amineMITSUI TOATSU CHEMICALS·Filed 1973·Granted Jan 24, 1978·37 cites·10 claims
- 0894US5285097ASemiconductor sensor of electrostatic capacitance typeCANON KK·Filed 1992·Granted Feb 8, 1994·97 cites·11 claims
- 0993US4814842AThin film transistor utilizing hydrogenated polycrystalline siliconCANON KK·Filed 1988·Granted Mar 21, 1989·86 cites·6 claims
- 1091US4683146AProcess for producing deposition filmsCANON KK·Filed 1985·Granted Jul 28, 1987·102 cites·22 claims
- 1190US4693915AFilm forming method, recording medium formed thereby and recording method therewithCANON KK·Filed 1985·Granted Sep 15, 1987·20 cites·20 claims
- 1289US5966787AProcess for producing a probe-driving mechanismCANON KK·Filed 1996·Granted Oct 19, 1999·59 cites·6 claims
- 1389US5349858AAngular acceleration sensorCANON KK·Filed 1992·Granted Sep 27, 1994·71 cites·8 claims
- 1489US4683147AMethod of forming deposition filmCANON KK·Filed 1985·Granted Jul 28, 1987·95 cites·20 claims
- 1589US4178455AProcess for preparing aromatic urethanesMITSUI TOATSU CHEMICALS·Filed 1978·Granted Dec 11, 1979·26 cites·38 claims
- 1688US5317152ACantilever type probe, and scanning tunnel microscope and information processing apparatus employing the sameCANON KK·Filed 1992·Granted May 31, 1994·81 cites·11 claims
- 1787US4592980APhotoconductive layer having hydrophilic and hydrophobic moietiesCANON KK·Filed 1984·Granted Jun 3, 1986·27 cites·16 claims
- 1886US5357108ACantilever type displacement element, and scanning tunneling microscope or information processing apparatus using sameCANON KK·Filed 1992·Granted Oct 18, 1994·51 cites·36 claims
- 1986US4625224AThin film transistor having polycrystalline silicon layer with 0.01 to 5 atomic % chlorineCANON KK·Filed 1983·Granted Nov 25, 1986·38 cites·3 claims
- 2085US5506829ACantilever probe and apparatus using the sameCANON KK·Filed 1994·Granted Apr 9, 1996·62 cites·12 claims
- 2184US5261961ADevice for forming deposited filmCANON KK·Filed 1992·Granted Nov 16, 1993·57 cites·1 claims
- 2283US4683145AMethod for forming deposited filmCANON KK·Filed 1985·Granted Jul 28, 1987·65 cites·16 claims
- 2382US5321685ACantilever type probe, scanning tunnel microscope and information processing apparatus using the sameCANON KK·Filed 1992·Granted Jun 14, 1994·52 cites·4 claims
- 2481US4134880AProcess for producing an aromatic urethane from nitro compounds, hydroxyl compounds and carbon monoxide using metal-Lewis acid-ammonia catalyst systemsMITSUI TOATSU CHEMICALS·Filed 1978·Granted Jan 16, 1979·13 cites·8 claims
- 2581US4080365AProcess for preparing aromatic urethanesMITSUI TOATSU CHEMICALS·Filed 1976·Granted Mar 21, 1978·15 cites·9 claims
- 2680US4569855AMethod of forming deposition filmCANON KK·Filed 1985·Granted Feb 11, 1986·53 cites·8 claims
- 2779US4461956ASolid-state photoelectric converterCANON KK·Filed 1983·Granted Jul 24, 1984·37 cites·22 claims
- 2876US4719501ASemiconductor device having junction formed from two different hydrogenated polycrystalline silicon layersCANON KK·Filed 1985·Granted Jan 12, 1988·32 cites·8 claims
- 2976US4461819AImage-forming member for electrophotographyCANON KK·Filed 1981·Granted Jul 24, 1984·21 cites·59 claims
- 3075US5268571AMicro-displacement element, and scanning tunneling microscope and information processing apparatus using sameCANON KK·Filed 1992·Granted Dec 7, 1993·39 cites·16 claims
- 3174US4933221AOptical recording deviceCANON KK·Filed 1988·Granted Jun 12, 1990·26 cites·31 claims
- 3274US4905072ASemiconductor elementCANON KK·Filed 1988·Granted Feb 27, 1990·39 cites·10 claims
- 3374US4586980APattern forming methodCANON KK·Filed 1985·Granted May 6, 1986·41 cites·9 claims
- 3474US4451547AElectrophotographic α-Si(H) member and process for production thereofCANON KK·Filed 1980·Granted May 29, 1984·17 cites·21 claims
- 3574US4390791ASolid-state photoelectric transducerCANON KK·Filed 1981·Granted Jun 28, 1983·31 cites·58 claims
- 3674US4139562AProcess for purifying crude p-aminophenolMITSUI TOATSU CHEMICALS·Filed 1978·Granted Feb 13, 1979·8 cites·10 claims
- 3773US5554851AParallel plane holding mechanism and apparatus using such a mechanismCANON KK·Filed 1995·Granted Sep 10, 1996·49 cites·13 claims
- 3873US4170708AProcess for preparing aromatic urethanesMITSUI TOATSU CHEMICALS·Filed 1976·Granted Oct 9, 1979·9 cites·11 claims
- 3972US4552824AElectrophotographic photosensitive member and process for production thereofCANON KK·Filed 1985·Granted Nov 12, 1985·14 cites·33 claims
- 4072US4507375AElectrophotographic photosensitive member and process for production thereofCANON KK·Filed 1984·Granted Mar 26, 1985·15 cites·17 claims
- 4170US4796981AOptical element for modulation of light by heating a monomolecular filmCANON KK·Filed 1984·Granted Jan 10, 1989·26 cites·13 claims
- 4270US4745041ACVD process for forming semiconducting film having hydrogenated germanium matrixCANON KK·Filed 1986·Granted May 17, 1988·11 cites·17 claims
- 4370US4695717ASemi-conductor device and electronic apparatus using the sameCANON KK·Filed 1985·Granted Sep 22, 1987·23 cites·15 claims
- 4469US5846320AMethod for forming crystal and crystal article obtained by said methodCANON KK·Filed 1995·Granted Dec 8, 1998·33 cites·25 claims
- 4569US4683144AMethod for forming a deposited filmCANON KK·Filed 1985·Granted Jul 28, 1987·35 cites·9 claims
- 4668US4645684AMethod for forming deposited filmCANON KK·Filed 1985·Granted Feb 24, 1987·19 cites·7 claims
- 4765US5576060ACVD process of forming hydrogenated a-Si filmsCANON KK·Filed 1995·Granted Nov 19, 1996·16 cites·38 claims
- 4864US5273919AMethod of producing a thin film field effect transistorCANON KK·Filed 1992·Granted Dec 28, 1993·24 cites·5 claims
- 4963US4920387ALight emitting deviceCANON KK·Filed 1989·Granted Apr 24, 1990·18 cites·25 claims
- 5063US4753830AFilm forming method, recording medium formed thereby and recording method therewithCANON KK·Filed 1987·Granted Jun 28, 1988·10 cites·5 claims
Showing the top 50 of 91 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →