Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6504532 | Coordinates detection apparatus | Takahiro Ito, Kenichi Takekawa | 2003-01-07 |
| 6352351 | Method and apparatus for inputting coordinates | Takahiro Ito, Kenichi Takekawa | 2002-03-05 |