YO

Yutaka Ohsawa

PE Pentax: 19 patents #83 of 761Top 15%
HO Hoya: 5 patents #232 of 1,290Top 20%
PE Pentax: 2 patents #187 of 396Top 50%
PC Pentax Ricoh Imaging Company: 2 patents #27 of 74Top 40%
AK Asahi Kogaku Kogyo K.K.: 1 patents #76 of 180Top 45%
Overall (All Time): #132,196 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #TitleCo-InventorsDate
4831400 Stop-down signal adjusting circuit in automatic aperture control camera Satoshi Takami 1989-05-16
4806748 Photo-electric conversion circuit Satoshi Takami 1989-02-21
4789777 Photelectric amplifier having plural actuable feedback paths Satoshi Takami 1988-12-06
4737807 Film rewinding device for camera Satoshi Takami 1988-04-12