Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5953308 | Disc player with alternating ascending/descending guide devices | Hiroshi Yokota, Ryuichi Naito, Hiroyuki Hirano, Katsumi Ishii, Shinichi Naohara +1 more | 1999-09-14 |