Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652737 | Magneto-optical disk pick-up device having mode splitter using cut off effect caused by tapered waveguide | Kohji Minami, Kuniaki Okada, Hiroyuki Yamamoto, Yoshio Yoshida, Yukio Kurata | 1997-07-29 |
| 5602808 | Objective lens driving apparatus | Masayasu Futagawa, Toshiyuki Tanaka | 1997-02-11 |