Inventor
IKEMORI KEIJI
64 patents
Patents
50 patentsUS4784479ANov 15, 1988
Varifocal optical system
CANON KK128 citations96
US4647160AMar 3, 1987
Small-sized wide angle zoom objective
CANON KK59 citations96
US5078481AJan 7, 1992
Magnification changing lens
CANON KK39 citations93
US4750821AJun 14, 1988
Zoom lens assembly
CANON KK32 citations93
US4687302AAug 18, 1987
Zoom lens
CANON KK31 citations93
US4629294ADec 16, 1986
Zoom lens
CANON KK26 citations93
US6506446B2Jan 14, 2003
Anti-fog coating material and method of preparing an anti-fog article
CANON KK23 citations92
US6306932B1Oct 23, 2001
Anti-fogging coating material, anti-fogging coating film and anti-fogging article
CANON KK20 citations92
US5976680ANov 2, 1999
Non-fogging antireflection film and optical member, and production process thereof
CANON KK25 citations92
US5305148AApr 19, 1994
Compact varifocal lens
CANON KK43 citations92
US5270866ADec 14, 1993
Compact zoom lens
CANON KK26 citations92
US4830477AMay 16, 1989
Zoom lens capable of obtaining focal lengths beyond a variable focal length range
CANON KK34 citations92
US6055376AApr 25, 2000
Observation optical system and optical apparatus having the same
CANON KK16 citations84
US4730199AMar 8, 1988
Photographic apparatus
CANON KK19 citations82
US4707103ANov 17, 1987
Optical system of variable magnification
CANON KK18 citations82
US4702567AOct 27, 1987
Zoom lens
CANON KK21 citations82
US4477153AOct 16, 1984
Ultrawide angle zoom objective
CANON KK23 citations82
US4111558ASep 5, 1978
Retrofocus type wide angle objective lens
CANON KK20 citations82
US4110006AAug 29, 1978
Telephoto type zoom lens
CANON KK21 citations82
US5392082AFeb 21, 1995
Photographing apparatus having a trimming photographic mode
CANON KK10 citations74
US5319405AJun 7, 1994
Camera system
CANON KK17 citations74
US5289317AFeb 22, 1994
Compact zoom lens
CANON KK18 citations74
US4865434ASep 12, 1989
Zoom lens capable of selecting a focal length beyond a standard focal length range
CANON KK15 citations74
US4836661AJun 6, 1989
Optical system of variable magnification power
CANON KK16 citations74
US4826301AMay 2, 1989
Photographic system having soft focus function
CANON KK14 citations74
US4789227ADec 6, 1988
Zoom lens
CANON KK11 citations74
US4781446ANov 1, 1988
Zoom lens having a capability of introducing special features into image formats
CANON KK14 citations74
US4775228AOct 4, 1988
Zoom lens
CANON KK12 citations74
US4711534ADec 8, 1987
Zoom lens able to obtain focal lengths beyond the zooming range
CANON KK9 citations74
US4705363ANov 10, 1987
Aberrational deterioration prevented zoom lens
CANON KK9 citations74
US4695133ASep 22, 1987
High range zoom lens
CANON KK12 citations74
US4684223AAug 4, 1987
Zoom lens of the rear focusing type
CANON KK9 citations74
US4666257AMay 19, 1987
Compact zoom lens
CANON KK20 citations74
US4639096AJan 27, 1987
High range zoom lens
CANON KK15 citations74
US4586793AMay 6, 1986
Zoom lens
CANON KK14 citations74
US4509833AApr 9, 1985
High variable magnification wide angle zoom lens
CANON KK7 citations74
US4469412ASep 4, 1984
Wide angle zoom lens
CANON KK16 citations74
US4466707AAug 21, 1984
Variable magnification lens system
CANON KK8 citations74
US4437746AMar 20, 1984
Photo metering device for single lens reflex camera
CANON KK10 citations74
US4432615AFeb 21, 1984
Zoom lens
CANON KK11 citations74
US4427268AJan 24, 1984
Variable magnification ratio lens
CANON KK10 citations74
US4422734ADec 27, 1983
Photographic lens system having an auxiliary lens
CANON KK9 citations74
US4400064AAug 23, 1983
Zoom lens
CANON KK14 citations74
US4390248AJun 28, 1983
Wide angle zoom lens
CANON KK7 citations74
US4370031AJan 25, 1983
Zoom objective of small size
CANON KK9 citations74
US4364644ADec 21, 1982
Gauss type large aperture photographic objective
CANON KK18 citations74
US4340279AJul 20, 1982
Rear attachment lens
CANON KK17 citations74
US4310222AJan 12, 1982
Retro-focus type wide angle lens
CANON KK17 citations74
US4299452ANov 10, 1981
Zoom lens having two movable lens groups
CANON KK13 citations74
US4232942ANov 11, 1980
Optically compensated zoom lens
CANON KK11 citations74
Showing the top 50 of 64 patents by PatentIndex Score.