Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7398878 | Case for disc-shaped recording medium with function of preventing dropout of holder | — | 2008-07-15 |
| 5395123 | System for marking a singing voice and displaying a marked result for a karaoke machine | — | 1995-03-07 |
| 4674347 | Torsional vibration absorbing system for vehicular power transmission | Hisato Nishida | 1987-06-23 |