Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6642462 | Lid open/close detection device of portable electronic equipment | Nobuyuki Ninomiya, Hiroki Oba, Takayuki Itabashi | 2003-11-04 |
| 6555770 | Composite operation switch | — | 2003-04-29 |
| 6525713 | Coordinate input device capable of inputting z-coordinate of image object | Kaoru Soeta, Hiroki Oba | 2003-02-25 |