RO

Ryota Ogawa

PE Pentax: 5 patents #2 of 50Top 4%
Overall (1982): #912 of 81,411Top 2%
5
Patents 1982

Issued Patents 1982

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4354756 Copying apparatus Yasunori Arai, Michiro Ohishi 1982-10-19
4348082 Zoom lens having high zoom ratio including wide angle range 1982-09-07
4333711 Zoom lens for copying Takayuki Itoh, Yasunori Arai 1982-06-08
4331389 Compact zoom lens system Yasuo Takahashi 1982-05-25
4322159 Variable magnification type copying machine Sataro Takahashi, Yasunori Arai 1982-03-30