KU

Ken Utagawa

NI Nikon: 60 patents #28 of 2,493Top 2%
NK Nippon Kogaku K.K.: 24 patents #3 of 382Top 1%
Overall (All Time): #20,725 of 4,157,543Top 1%
84
Patents All Time

Issued Patents All Time

Showing 76–84 of 84 patents

Patent #TitleCo-InventorsDate
4336450 Focus detecting apparatus Akira Ogasawara, Hiroshi Shirasu, Kunihisa Hoshino 1982-06-22
4322616 Focus detecting device with shielding Toru Fukuhara 1982-03-30
4319238 Camera display device Akira Ogasawara, Kunihisa Hoshino, Hiroshi Shirasu 1982-03-09
4306143 Device for extracting a plurality of space frequency components Kunihisa Hoshino, Hiroshi Shirasu, Akira Ogasawara 1981-12-15
4297571 Focus detecting device Kunihisa Hoshino, Hiroshi Shirasu, Akira Ogasawara 1981-10-27
4291224 Light image space frequency component extracting device Hiroshi Shirasu, Akira Ogasawara 1981-09-22
4276471 Focus detecting device 1981-06-30
4264810 Focus detecting apparatus Hiroshi Shirasu 1981-04-28
4218623 Device for detecting displacement of an optical image 1980-08-19