ST

Shigeo Tohji

PE Pentax: 3 patents #351 of 761Top 50%
Overall (All Time): #1,666,957 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4952962 Automatic focusing device Noboru Suzuki 1990-08-28
4905034 Automatic focusing projector Yasuyuki Tejima, Akihiro Arai, Hideaki Yuda, Saburoh Sugawara 1990-02-27
4868592 Automatic focusing device Noboru Suzuki 1989-09-19