Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7548213 | Game chip | Toshimi Koyama, Nobuyuki Nonaka | 2009-06-16 |
| 7460079 | Game chip | Toshimi Koyama, Nobuyuki Nonaka | 2008-12-02 |
| 4883950 | Composite magnetic and optical head | Kazuo Chiba, Yoshiaki Ohishi, Hajime Mochizuki, Takao Kobayashi | 1989-11-28 |