RO

Ryota Ogawa

PE Pentax: 1 patents #12 of 57Top 25%
AK Asahi Kogaku Kogyo K.K.: 1 patents #5 of 26Top 20%
Overall (1989): #16,510 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4890133 Autofocus camera Shigeo Toji, Kazushi Yoshida, Zenichi Okura 1989-12-26
4808806 Optical system for use in focus detecting apparatus Osamu Shindo 1989-02-28