Inventor
FUJITA HISAO
JP8 patents
⚠️ This page may combine multiple inventors who share the name “FUJITA HISAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KONISHIROKU PHOTO IND
7 patentsUS4273843AJun 16, 1981
Method of detecting toner concentration in electrophotographic copying machine
KONISHIROKU PHOTO IND22 citations81
US4802721AFeb 7, 1989
Scanning optical system
KONISHIROKU PHOTO IND10 citations72
US4501475AFeb 26, 1985
Zoom lens
KONISHIROKU PHOTO IND19 citations72
US4767201AAug 30, 1988
Wide angle lens
KONISHIROKU PHOTO IND11 citations70
US4688903AAug 25, 1987
Wide angle lens
KONISHIROKU PHOTO IND7 citations70
US4276854AJul 7, 1981
Apparatus for detecting toner density
KONISHIROKU PHOTO IND5 citations62
US4926195AMay 15, 1990
Image recording apparatus
KONISHIROKU PHOTO IND1 citations51