Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6608619 | Coordinate position inputting/detecting device, a method for inputting/detecting the coordinate position, and a display board system | Kunikazu Tsuda, Makoto Tanaka | 2003-08-19 |
| 6594023 | Coordinate inputting/detecting apparatus, method and computer program product designed to precisely recognize a designating state of a designating device designating a position | Kunikazu Tsuda, Mitsuru Sato | 2003-07-15 |
| 6563491 | Coordinate input apparatus and the recording medium thereof | — | 2003-05-13 |
| 6518960 | Electronic blackboard system | Kunikazu Tsuda, Makoto Tanaka, Takashi Kitaguchi, Tomohiko Beppu, Toshiyuki Furuta +2 more | 2003-02-11 |