Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778190 | Three-dimensional image processing apparatus | Kazuo Koshima, Takumi Kawagoe | 2004-08-17 |
| 6679776 | Video game system | Kazuo Koshima, Keizo Ohta | 2004-01-20 |
| 6676520 | Video game system providing physical sensation | Kazuo Koshima, Nobuyuki Nonaka | 2004-01-13 |