Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462733 | Digitizer, assisting apparatus for digitizer, and digitizer system | — | 2002-10-08 |
| 6362468 | Optical unit for detecting object and coordinate input apparatus using same | Yasuji Ogawa, Yasuhiro Fukuzaki | 2002-03-26 |