Inventor · disambiguated record
Sadahiko Tsuji
Also filed as: AGARI YUJIRO · MATSUMURA SUSUMU · SATO YASUHISA · TANAKA KATSUMI
62 granted patents·1,102 citations·filing 1975–1998
99Inventor score
Top patents by PatentIndex Score
62 records- 0195US5757423AImage taking apparatusCANON KK·Filed 1994·Granted May 26, 1998·175 cites·10 claims
- 0292US4797700ADiaphragm deviceCANON KK·Filed 1986·Granted Jan 10, 1989·38 cites·3 claims
- 0392US4294529ACameraCANON KK·Filed 1979·Granted Oct 13, 1981·21 cites·8 claims
- 0491US6351333B2Optical element and optical system having the sameCANON KK·Filed 1998·Granted Feb 26, 2002·105 cites·34 claims
- 0588US5289318AOptical apparatus provided with a driving unit for moving a lensCANON KK·Filed 1991·Granted Feb 22, 1994·71 cites·10 claims
- 0686US4439018AZoom lens structureCANON KK·Filed 1981·Granted Mar 27, 1984·21 cites·5 claims
- 0781US5572372AOptical apparatus provided with a driving unit for moving a lensCANON KK·Filed 1994·Granted Nov 5, 1996·46 cites·3 claims
- 0878US5040881AImage stabilization lens systemCANON KK·Filed 1989·Granted Aug 20, 1991·35 cites·16 claims
- 0976US4998809AImage-stabilizing optical deviceCANON KK·Filed 1990·Granted Mar 12, 1991·42 cites·8 claims
- 1074US5461500APolarization converting apparatus and optical instrument having the sameCANON KK·Filed 1994·Granted Oct 24, 1995·39 cites·8 claims
- 1171US4589031AVideo cameraCANON KK·Filed 1983·Granted May 13, 1986·19 cites·10 claims
- 1269US4371261ARange finderCANON KK·Filed 1980·Granted Feb 1, 1983·17 cites·2 claims
- 1368US5243462AImage stabilizing apparatusCANON KK·Filed 1992·Granted Sep 7, 1993·31 cites·45 claims
- 1467US4477148AOptical low-pass filterCANON KK·Filed 1982·Granted Oct 16, 1984·20 cites·2 claims
- 1567US4094586ACompact zoom lensCANON KK·Filed 1976·Granted Jun 13, 1978·21 cites·10 claims
- 1666US4318593AZoom lens assembly with two movable focusing lens groupsCANON KK·Filed 1979·Granted Mar 9, 1982·19 cites·15 claims
- 1765US4659187AZoom lens using elements made of plastic materialsCANON KK·Filed 1983·Granted Apr 21, 1987·19 cites·12 claims
- 1859US4786150AZoom lens with beam splitterCANON KK·Filed 1986·Granted Nov 22, 1988·18 cites·10 claims
- 1959US4696553AZoom lens having a large zoom ratioCANON KK·Filed 1983·Granted Sep 29, 1987·15 cites·11 claims
- 2058US4929068AConversion lensCANON KK·Filed 1989·Granted May 29, 1990·17 cites·17 claims
- 2158US4749266ACompact zoom lens having a large aperture and good aberation correction over an extended zooming rangeCANON KK·Filed 1983·Granted Jun 7, 1988·15 cites·10 claims
- 2258US4673262ACompact finderCANON KK·Filed 1984·Granted Jun 16, 1987·14 cites·7 claims
- 2357US4763998ACompact zoom lensCANON KK·Filed 1986·Granted Aug 16, 1988·17 cites·7 claims
- 2457US4544250AOptical system for camera with a viewfinderCANON KK·Filed 1984·Granted Oct 1, 1985·14 cites·6 claims
- 2556US4525036AZoom lensTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Jun 25, 1985·14 cites·7 claims
- 2656US4086605ADiaphragm deviceCANON KK·Filed 1976·Granted Apr 25, 1978·4 cites·12 claims
- 2755US4240699AZoom lens having extended focusing rangeCANON KK·Filed 1978·Granted Dec 23, 1980·13 cites·3 claims
- 2855US4105291ALarge aperture zoom lensCANON KK·Filed 1976·Granted Aug 8, 1978·13 cites·2 claims
- 2952US4708444APhotographic objectiveCANON KK·Filed 1984·Granted Nov 24, 1987·11 cites·9 claims
- 3050US4653874AZoom lensCANON KK·Filed 1986·Granted Mar 31, 1987·13 cites·10 claims
- 3150US4618219AZoom lensCANON KK·Filed 1984·Granted Oct 21, 1986·11 cites·4 claims
- 3250US4380377ACompact zoom lensCANON KK·Filed 1980·Granted Apr 19, 1983·11 cites·2 claims
- 3347US4200380ACamera provided with means for giving information about photographingCANON KK·Filed 1978·Granted Apr 29, 1980·9 cites·7 claims
- 3446US4515446AZoom objectiveCANON KK·Filed 1982·Granted May 7, 1985·9 cites·5 claims
- 3546US4178076AMacro zoom lensCANON KK·Filed 1978·Granted Dec 11, 1979·10 cites·6 claims
- 3646US4113355AMacro zoom lensCANON KK·Filed 1977·Granted Sep 12, 1978·10 cites·3 claims
- 3745US4963005AZoom lens having built-in diaphragmCANON KK·Filed 1987·Granted Oct 16, 1990·10 cites·10 claims
- 3845US4247171ACompact photographic lens with large apertureCANON KK·Filed 1978·Granted Jan 27, 1981·8 cites·8 claims
- 3944US4854679APhotographic system having front conversion lensCANON KK·Filed 1987·Granted Aug 8, 1989·9 cites·10 claims
- 4044US4687303AZoom lens systemCANON KK·Filed 1984·Granted Aug 18, 1987·8 cites·4 claims
- 4144US4368954ACompact zoom objectiveCANON KK·Filed 1980·Granted Jan 18, 1983·8 cites·6 claims
- 4243US4626076AZoom lensCANON KK·Filed 1985·Granted Dec 2, 1986·13 cites·3 claims
- 4343US4336983APhotographic objective stabilized against change of angular field during focusingCANON KK·Filed 1979·Granted Jun 29, 1982·7 cites·3 claims
- 4442US4720180AHigh magnification range zoom lensCANON KK·Filed 1983·Granted Jan 19, 1988·7 cites·5 claims
- 4541US3970367AZoom lens systemCANON KK·Filed 1975·Granted Jul 20, 1976·7 cites·4 claims
- 4640US4712883ARear focus zoom lensCANON KK·Filed 1984·Granted Dec 15, 1987·6 cites·20 claims
- 4738US4508433ATelephoto objectiveCANON KK·Filed 1983·Granted Apr 2, 1985·5 cites·13 claims
- 4838US4251133ALarge aperture telephoto-lensCANON KK·Filed 1978·Granted Feb 17, 1981·5 cites·4 claims
- 4937US6188521B1Image displaying apparatus having magnification-changing systemCANON KK·Filed 1995·Granted Feb 13, 2001·6 cites·10 claims
- 5037US4453813APhotometric device for single-lens reflex cameraCANON KK·Filed 1982·Granted Jun 12, 1984·1 cites·4 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →