RO

Ryota Ogawa

PE Pentax: 4 patents #17 of 186Top 10%
Overall (1994): #4,625 of 165,921Top 3%
4
Patents 1994

Issued Patents 1994

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5373437 Device for and method of reducing cross talk in optical disk device Tsuyoshi Itoh, Isao Okuda, Hiroshi Nishikawa, Toshiyuki Kase, Masahiro Oono +2 more 1994-12-13
5295020 Lens assembling structure Takashi Iizuka 1994-03-15
5293188 Reflecting illumination type projecting device Kazushi Yoshida, Tetsuya Abe 1994-03-08
5280464 Optical disk apparatus having a focusing error correcting system Tsuyoshi Itoh, Isao Okuda, Toshiyuki Kase, Hiroshi Nishikawa, Masahiro Oono +2 more 1994-01-18