Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6580415 | Input device of detecting acceleration | Katsumi Kato | 2003-06-17 |
| 6541760 | Rotation detecting apparatus detecting rotation operation by light transmission to prevent invalid detection | Kenji Ohgoshi | 2003-04-01 |