Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6991511 | Expression-varying device | Albert P. Maggiore, Toshinobu Ishii, Hideyasu Karasawa | 2006-01-31 |
| 6254485 | Game device using a moving light and reflective paddle | Hideyasu Karasawa, Norihito Yamanaka | 2001-07-03 |