YS

Yoshihiko Shimura

Ricoh Company: 2 patents #5,693 of 9,818Top 60%
Overall (All Time): #2,270,427 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5631458 Range finder Toshiaki Nakahira, Susumu Iguchi, Kazumasa Aoki 1997-05-20
5148212 Flash control based on calculated required flash energy Yoshio Serikawa, Susumu Iguchi, Akira Ueno, Hiroshi Takeda, Shigeru Mitsu +2 more 1992-09-15