Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9089644 | Administration apparatus, operating method thereof and administration method | Yuki Kitaoka, Kenji Kameyama | 2015-07-28 |
| 5070494 | Optical pickup device with dual-mode drive mechanism | Masami Emoto, Akihiko Okamoto | 1991-12-03 |
| 4821252 | Information recording and/or reproducing apparatus | — | 1989-04-11 |
| 4636625 | Method and device for detecting focal point | Masami Emoto, Hiroyuki Kiguchi | 1987-01-13 |