Inventor
YAMAGATA TAKAAKI
JP4 patents
Patents
4 patentsUS4178098ADec 11, 1979
Range detecting method and apparatus
CANON KK36 citations91
US4329577AMay 11, 1982
Focus detecting device with photo-sensor array
CANON KK24 citations81
US4189232AFeb 19, 1980
Range detecting method and apparatus
CANON KK26 citations81
US4397933AAug 9, 1983
Hydrogenated amorphous silicon photoconductive layer
CANON KK3 citations62