HY

Hideaki Yuda

PE Pentax: 4 patents #304 of 761Top 40%
AK Asahi Kogaku Kogyo K.K.: 4 patents #27 of 180Top 15%
Overall (All Time): #670,104 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
5085977 Focusing screen and a method of forming a microstructure array for use with a focusing screen Saburo Sugawara, Toshiharu Takahashi, Moriyasu Shirayanagi 1992-02-04
5081545 Focusing screen Saburo Sugawara, Toshiharu Takahashi, Moriyasu Shirayanagi 1992-01-14
4949115 Automatic focusing projector Yasuyuki Tejima, Akihiro Arai, Saburo Sugawara, Shigeo Toji 1990-08-14
4905034 Automatic focusing projector Yasuyuki Tejima, Akihiro Arai, Saburoh Sugawara, Shigeo Tohji 1990-02-27
4870442 Auxiliary light projecting apparatus for a focus detecting system Yasuyuki Tejima, Saburo Sugawara 1989-09-26
4771308 Auxiliary light projecting apparatus for a focus detecting system Yasuyuki Tejima, Saburo Sugawara 1988-09-13
4600830 Focus detecting device Seijiro Tokutomi, Osamu Shindo 1986-07-15
4580042 Focusing position detecting device using a sector shaped mirror Seijiro Tokutomi, Osamu Shindo 1986-04-01