Inventor · disambiguated record
Keiji Ikemori
Also filed as: IKEMORI KEIJI
64 granted patents·1 pending application·1,089 citations·filing 1974–2025
99Inventor score
Top patents by PatentIndex Score
65 records- 0196US4784479AVarifocal optical systemCANON KK·Filed 1985·Granted Nov 15, 1988·128 cites·14 claims
- 0287US4647160ASmall-sized wide angle zoom objectiveCANON KK·Filed 1985·Granted Mar 3, 1987·59 cites·19 claims
- 0382US4730199APhotographic apparatusCANON KK·Filed 1985·Granted Mar 8, 1988·19 cites·13 claims
- 0480US6506446B2Anti-fog coating material and method of preparing an anti-fog articleCANON KK·Filed 2001·Granted Jan 14, 2003·23 cites·10 claims
- 0577US5319405ACamera systemCANON KK·Filed 1992·Granted Jun 7, 1994·17 cites·24 claims
- 0677US5305148ACompact varifocal lensCANON KK·Filed 1993·Granted Apr 19, 1994·43 cites·47 claims
- 0775US4830477AZoom lens capable of obtaining focal lengths beyond a variable focal length rangeCANON KK·Filed 1985·Granted May 16, 1989·34 cites·14 claims
- 0874US5078481AMagnification changing lensCANON KK·Filed 1990·Granted Jan 7, 1992·39 cites·28 claims
- 0974US4750821AZoom lens assemblyCANON KK·Filed 1985·Granted Jun 14, 1988·32 cites·9 claims
- 1074US4629294AZoom lensCANON KK·Filed 1984·Granted Dec 16, 1986·26 cites·4 claims
- 1173US4687302AZoom lensCANON KK·Filed 1986·Granted Aug 18, 1987·31 cites·11 claims
- 1272US4437746APhoto metering device for single lens reflex cameraCANON KK·Filed 1982·Granted Mar 20, 1984·10 cites·5 claims
- 1370US4477153AUltrawide angle zoom objectiveCANON KK·Filed 1982·Granted Oct 16, 1984·23 cites·5 claims
- 1469US4110006ATelephoto type zoom lensCANON KK·Filed 1977·Granted Aug 29, 1978·21 cites·12 claims
- 1567US4111558ARetrofocus type wide angle objective lensCANON KK·Filed 1976·Granted Sep 5, 1978·20 cites·17 claims
- 1664US5392082APhotographing apparatus having a trimming photographic modeCANON KK·Filed 1994·Granted Feb 21, 1995·10 cites·7 claims
- 1764US5270866ACompact zoom lensCANON KK·Filed 1991·Granted Dec 14, 1993·26 cites·77 claims
- 1863US4364644AGauss type large aperture photographic objectiveCANON KK·Filed 1980·Granted Dec 21, 1982·18 cites·1 claims
- 1963US4310222ARetro-focus type wide angle lensCANON KK·Filed 1979·Granted Jan 12, 1982·17 cites·19 claims
- 2062US6327430B1Camera having antifogging filmCANON KK·Filed 1999·Granted Dec 4, 2001·7 cites·16 claims
- 2162US6306932B1Anti-fogging coating material, anti-fogging coating film and anti-fogging articleCANON KK·Filed 1998·Granted Oct 23, 2001·20 cites·14 claims
- 2262US5976680ANon-fogging antireflection film and optical member, and production process thereofCANON KK·Filed 1996·Granted Nov 2, 1999·25 cites·11 claims
- 2362US4836661AOptical system of variable magnification powerCANON KK·Filed 1983·Granted Jun 6, 1989·16 cites·27 claims
- 2462US4702567AZoom lensCANON KK·Filed 1987·Granted Oct 27, 1987·21 cites·5 claims
- 2562US4340279ARear attachment lensCANON KK·Filed 1980·Granted Jul 20, 1982·17 cites·8 claims
- 2661US4469412AWide angle zoom lensCANON KK·Filed 1983·Granted Sep 4, 1984·16 cites·4 claims
- 2759US4707103AOptical system of variable magnificationCANON KK·Filed 1986·Granted Nov 17, 1987·18 cites·23 claims
- 2859US4666257ACompact zoom lensCANON KK·Filed 1985·Granted May 19, 1987·20 cites·4 claims
- 2959US4639096AHigh range zoom lensCANON KK·Filed 1984·Granted Jan 27, 1987·15 cites·6 claims
- 3059US4206973ARetrofocus type wide-angle objectiveCANON KK·Filed 1978·Granted Jun 10, 1980·15 cites·3 claims
- 3158US4586793AZoom lensCANON KK·Filed 1983·Granted May 6, 1986·14 cites·8 claims
- 3257US4135786AZoom lens systemCANON KK·Filed 1977·Granted Jan 23, 1979·14 cites·2 claims
- 3356US4400064AZoom lensCANON KK·Filed 1981·Granted Aug 23, 1983·14 cites·6 claims
- 3456US4299452AZoom lens having two movable lens groupsCANON KK·Filed 1978·Granted Nov 10, 1981·13 cites·6 claims
- 3555US5289317ACompact zoom lensCANON KK·Filed 1993·Granted Feb 22, 1994·18 cites·20 claims
- 3654US6055376AObservation optical system and optical apparatus having the sameCANON KK·Filed 1998·Granted Apr 25, 2000·16 cites·31 claims
- 3753US4865434AZoom lens capable of selecting a focal length beyond a standard focal length rangeCANON KK·Filed 1985·Granted Sep 12, 1989·15 cites·13 claims
- 3853US4826301APhotographic system having soft focus functionCANON KK·Filed 1986·Granted May 2, 1989·14 cites·11 claims
- 3952US4781446AZoom lens having a capability of introducing special features into image formatsCANON KK·Filed 1985·Granted Nov 1, 1988·14 cites·11 claims
- 4052US4232942AOptically compensated zoom lensCANON KK·Filed 1978·Granted Nov 11, 1980·11 cites·11 claims
- 4151US4432615AZoom lensCANON KK·Filed 1981·Granted Feb 21, 1984·11 cites·5 claims
- 4250US3947094ARetro-telecentric lensCANON KK·Filed 1974·Granted Mar 30, 1976·10 cites·2 claims
- 4350US2025189769A1Imaging optical systemIKEMORI KEIJI·Filed 2025·Application pending·0 cites
- 4448US4695133AHigh range zoom lensCANON KK·Filed 1985·Granted Sep 22, 1987·12 cites·11 claims
- 4548US4427268AVariable magnification ratio lensCANON KK·Filed 1980·Granted Jan 24, 1984·10 cites·6 claims
- 4647US4789227AZoom lensCANON KK·Filed 1987·Granted Dec 6, 1988·11 cites·7 claims
- 4747US4775228AZoom lensCANON KK·Filed 1985·Granted Oct 4, 1988·12 cites·14 claims
- 4847US4705363AAberrational deterioration prevented zoom lensCANON KK·Filed 1984·Granted Nov 10, 1987·9 cites·17 claims
- 4947US4422734APhotographic lens system having an auxiliary lensCANON KK·Filed 1980·Granted Dec 27, 1983·9 cites·8 claims
- 5046US4370031AZoom objective of small sizeCANON KK·Filed 1980·Granted Jan 25, 1983·9 cites·7 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →