Inventor
OIZUMI KOUJI
JP19 patents
Patents
19 patentsUS5270857ADec 14, 1993
Optical system for stabilizing an image
CANON KK73 citations96
US4842395AJun 27, 1989
Finder of variable magnification
CANON KK69 citations96
US5305148AApr 19, 1994
Compact varifocal lens
CANON KK43 citations92
US5270866ADec 14, 1993
Compact zoom lens
CANON KK26 citations92
US5253005AOct 12, 1993
Small-sized camera
CANON KK21 citations92
US4871238AOct 3, 1989
Photographic optical device with variable magnification
CANON KK30 citations92
US4757336AJul 12, 1988
View finder of variable magnification
CANON KK32 citations92
US4830474AMay 16, 1989
Variable magnification optical system
CANON KK18 citations82
US4751539AJun 14, 1988
Variable power finder
CANON KK20 citations82
US5125735AJun 30, 1992
Automatic multi-point distance measuring device
CANON KK12 citations74
US5055868AOct 8, 1991
Variable magnification finder of real image type
CANON KK13 citations74
US4957356ASep 18, 1990
Finder device
CANON KK8 citations74
US4949107AAug 14, 1990
Camera having telescopic capability
CANON KK9 citations74
US4770508ASep 13, 1988
Conversion lens releasably attached behind master lens
CANON KK14 citations74
US4726668AFeb 23, 1988
Zoom lens of short total length
CANON KK17 citations74
US4702581AOct 27, 1987
Flash device for camera
CANON KK10 citations74
US4697882AOct 6, 1987
Beam splitter for changing optical paths small tilt
CANON KK16 citations74
US4643536AFeb 17, 1987
Rear conversion lens
CANON KK10 citations74
US4652091AMar 24, 1987
Compact zoom lens with short back focal distance
CANON KK5 citations63