Inventor · disambiguated record
Tadashi Ito
Also filed as: AIZAWA H · ITO TADASHI · MASHIMO YUKIO · MURAKAMI HIROYASU
159 granted patents·18 pending applications·1,947 citations·filing 1974–2024
99Inventor score
Top patents by PatentIndex Score
177 records- 0199US4047187ASystem for exposure measurement and/or focus detection by means of image senserCANON KK·Filed 1975·Granted Sep 6, 1977·254 cites·38 claims
- 0297US4341953AFocus detecting systemCANON KK·Filed 1980·Granted Jul 27, 1982·58 cites·64 claims
- 0397US4118713ATotally opened F. value information input system of lens for a camera with interchangeable lensesCANON KK·Filed 1977·Granted Oct 3, 1978·49 cites·10 claims
- 0497US4104649AAdaptor for providing a digital signal indicating the full open F number of an interchangeable photo-taking lens in a single lens reflex camera systemCANON KK·Filed 1976·Granted Aug 1, 1978·42 cites·17 claims
- 0597US4103307AExposure control deviceCANON KK·Filed 1977·Granted Jul 25, 1978·41 cites·97 claims
- 0696US4015198AShutter-time-preference single lens reflex camera with automatic film wind-upCANON KK·Filed 1974·Granted Mar 29, 1977·32 cites·13 claims
- 0795US6083680APhotothermographic materialFUJI PHOTO FILM CO LTD·Filed 1998·Granted Jul 4, 2000·34 cites·17 claims
- 0894US4304472ACamera systemCANON KK·Filed 1976·Granted Dec 8, 1981·28 cites·2 claims
- 0994US4053909AData registering equipment for a cameraCANON KK·Filed 1975·Granted Oct 11, 1977·28 cites·5 claims
- 1093US5098818ASilver halide photographic material and method for processing thereofFUJI PHOTO FILM CO LTD·Filed 1990·Granted Mar 24, 1992·26 cites·5 claims
- 1193US4149795ADigital information transmitting and displaying system for a photographic cameraCANON KK·Filed 1977·Granted Apr 17, 1979·24 cites·10 claims
- 1291US4249816APhotographic camera with a release locking deviceCANON KK·Filed 1979·Granted Feb 10, 1981·18 cites·1 claims
- 1390US6150084APhotothermographic elementFUJI PHOTO FILM CO LTD·Filed 1999·Granted Nov 21, 2000·17 cites·6 claims
- 1490US4604631AControl system and method for charge control ink jet printerRICOH KK·Filed 1984·Granted Aug 5, 1986·47 cites·11 claims
- 1589US4297018APrinted circuit unit for a cameraCANON KK·Filed 1979·Granted Oct 27, 1981·16 cites·12 claims
- 1689US3971048AExposure value display system for a cameraCANON KK·Filed 1974·Granted Jul 20, 1976·16 cites·5 claims
- 1788US6329127B1Heat-developable photosensitive material and method for forming image using the sameFUJI PHOTO FILM CO LTD·Filed 2000·Granted Dec 11, 2001·10 cites·15 claims
- 1887US6458505B2Photothermographic materialFUJI PHOTO FILM CO LTD·Filed 2001·Granted Oct 1, 2002·9 cites·21 claims
- 1987US5985508ASilver halide photographic materialFUJI PHOTO FILM CO LTD·Filed 1997·Granted Nov 16, 1999·15 cites·20 claims
- 2087US5190855ASilver halide photographic material and method for processing the sameFUJI PHOTO FILM CO LTD·Filed 1991·Granted Mar 2, 1993·16 cites·6 claims
- 2187US4431287ACameraCANON KK·Filed 1981·Granted Feb 14, 1984·21 cites·5 claims
- 2287US4126877ASafety device for an exposure amount control equipmentCANON KK·Filed 1976·Granted Nov 21, 1978·17 cites·9 claims
- 2387US4086603AElectrical driving circuit of cameraCANON KK·Filed 1975·Granted Apr 25, 1978·16 cites·14 claims
- 2486US6582896B1Photothermographic materialFUJI PHOTO FILM CO LTD·Filed 2000·Granted Jun 24, 2003·8 cites·23 claims
- 2586US5582959AMethod for forming an imageFUJI PHOTO FILM CO LTD·Filed 1995·Granted Dec 10, 1996·14 cites·9 claims
- 2686US4134660ASelf timer of cameraCANON KK·Filed 1977·Granted Jan 16, 1979·14 cites·18 claims
- 2786US4045807AAutomatic exposure control apparatus which prevents simultaneous diaphragm and shutter speed preselectionCANON KK·Filed 1975·Granted Aug 30, 1977·16 cites·6 claims
- 2885US4512656ACamera systemCANON KK·Filed 1980·Granted Apr 23, 1985·15 cites·37 claims
- 2985US4118716APhotographic mode selection device for a cameraCANON KK·Filed 1977·Granted Oct 3, 1978·14 cites·9 claims
- 3085US4057809AExposure control circuitCANON KK·Filed 1976·Granted Nov 8, 1977·14 cites·15 claims
- 3185US3982254ADigital indication system for a cameraCANON KK·Filed 1975·Granted Sep 21, 1976·15 cites·14 claims
- 3284US7732733B2Ferritic stainless steel welding wire and manufacturing method thereofNIPPON WELDING ROD CO LTD·Filed 2006·Granted Jun 8, 2010·7 cites·8 claims
- 3384US6822237B2Gamma camera apparatusANZAI MEDICAL KABUSHIKI KAISHA·Filed 2001·Granted Nov 23, 2004·35 cites·17 claims
- 3484US6210869B1Image forming method using heat-developable photosensitive materialFUJI PHOTO FILM CO LTD·Filed 1999·Granted Apr 3, 2001·12 cites·7 claims
- 3584US4011569AExposure control system for a cameraCANON KK·Filed 1975·Granted Mar 8, 1977·14 cites·17 claims
- 3683US7504139B2Optical cellulose acylate film, polarizing plate and liquid crystal displayFUJIFILM CORP·Filed 2004·Granted Mar 17, 2009·25 cites·26 claims
- 3783US4358188ACamera having program shutterCANON KK·Filed 1979·Granted Nov 9, 1982·13 cites·13 claims
- 3882US6309814B1Heat developable photosensitive materialFUJI PHOTO FILM CO LTD·Filed 2000·Granted Oct 30, 2001·6 cites·6 claims
- 3982US4346012APowdery fire-extinguishing agent, and process for its preparationDAINIPPON INK & CHEMICALS·Filed 1980·Granted Aug 24, 1982·57 cites·4 claims
- 4082US4081813APhotographic information setting apparatus for cameraCANON KK·Filed 1976·Granted Mar 28, 1978·12 cites·9 claims
- 4182US4034383AExposure control deviceCANON KK·Filed 1975·Granted Jul 5, 1977·12 cites·16 claims
- 4281US5889337AIntegrated instrument panel switch assemblySUMITOMO WIRING SYSTEMS·Filed 1997·Granted Mar 30, 1999·66 cites·2 claims
- 4381US5853951ASilver halide photographic materialFUJI PHOTO FILM CO LTD·Filed 1996·Granted Dec 29, 1998·10 cites·10 claims
- 4481US4079386ACamera with digital control deviceCANON KK·Filed 1976·Granted Mar 14, 1978·12 cites·14 claims
- 4580US6890600B2SiC single crystal, method for manufacturing SiC single crystal, SiC wafer having an epitaxial film, method for manufacturing SiC wafer having an epitaxial film, and SiC electronic deviceTOYOTA CHUO KENKYUSHO KK·Filed 2002·Granted May 10, 2005·16 cites·44 claims
- 4680US4664496ACamera systemCANON KK·Filed 1986·Granted May 12, 1987·14 cites·9 claims
- 4780US4106033ASystem for indicating photographing conditionsCANON KK·Filed 1976·Granted Aug 8, 1978·11 cites·4 claims
- 4879US4079387ACounter circuit for a cameraCANON KK·Filed 1976·Granted Mar 14, 1978·11 cites·14 claims
- 4979US4037233AExposure control device for a cameraCANON KK·Filed 1975·Granted Jul 19, 1977·9 cites·9 claims
- 5078US7671947B2Optical film, optical compensation film, polarizing plate, liquid crystal display unit and self luminous display unitFUJIFILM CORP·Filed 2005·Granted Mar 2, 2010·8 cites·34 claims
Showing the top 50 of 177 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →