Inventor
IMAIZUMI MASAKI
JP15 patents
Patents
15 patentsUS5727239AMar 10, 1998
Photographing optical apparatus
OLYMPUS OPTICAL CO38 citations91
US5148321ASep 15, 1992
Compact zoom lens system
OLYMPUS OPTICAL CO16 citations74
US5598296AJan 28, 1997
Prismatic telescope optical system
OLYMPUS OPTICAL CO10 citations73
US5581400ADec 3, 1996
Finder optical system with low-hygroscopic organic material
OLYMPUS OPTICAL CO9 citations73
US5321457AJun 14, 1994
Real image type finder system that changes an aspect ratio of a visual field by varying magnification
OLYMPUS OPTICAL CO12 citations73
US4715693ADec 29, 1987
Vari-focal photographic lens system of rear lens group exchange type
OLYMPUS OPTICAL CO11 citations73
US4708442ANov 24, 1987
Varifocal lens system
OLYMPUS OPTICAL CO15 citations73
US4693566ASep 15, 1987
Zoom lens system
OLYMPUS OPTICAL CO11 citations73
US4558928ADec 17, 1985
Focusing method for a telephoto lens system
OLYMPUS OPTICAL CO12 citations73
US4562344ADec 31, 1985
Automatic focus detecting mechanism for endoscopes
OLYMPUS OPTICAL CO17 citations71
US5731905AMar 24, 1998
Eyepiece lens system
OLYMPUS OPTICAL CO6 citations62
US5557464ASep 17, 1996
Wide-field eyepiece lens system
OLYMPUS OPTICAL CO6 citations62
US4668054AMay 26, 1987
Vari-focal photographic lens system of lens group exchange type
OLYMPUS OPTICAL CO4 citations62
US4653870AMar 31, 1987
Compact vari-focal photographic lens system
OLYMPUS OPTICAL CO3 citations62
US4609263ASep 2, 1986
Telephoto lens system having an improved focusing arrangement
OLYMPUS OPTICAL CO3 citations62