Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6587099 | Coordinate input/detection device detecting installation position of light-receiving device used for detecting coordinates | — | 2003-07-01 |
| 6570103 | Method and apparatus for coordinate inputting capable of effectively using a laser ray | Yasuhiko Saka | 2003-05-27 |
| 6532006 | Coordinates input device, coordinates input method, a display board system | Tsutomu Ogasawara, Takahiro Ito | 2003-03-11 |
| 6504532 | Coordinates detection apparatus | Tsutomu Ogasahara, Takahiro Ito | 2003-01-07 |