BS

Bunkichi Sugahara

PE Pentax: 2 patents #412 of 761Top 55%
AK Ashai Kogaku Kogyo Kabushiki Kaisha: 1 patents #1 of 26Top 4%
Overall (All Time): #1,658,214 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5236541 Joined prism assembly and method and apparatus for manufacturing same 1993-08-17
5221998 Joined prism assembly and method and apparatus for manufacturing same 1993-06-22
5122217 Joined prism assembly and method and apparatus for manufacturing same 1992-06-16