Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5349263 | Pointing device suitable for miniaturization | Sumio Katayama, Junichi Iwasaki, Shuichi Toi, Ichiro Usui | 1994-09-20 |
| 5349370 | Signal processing circuit for a pointing device | Sumio Katayama, Ichiro Usui | 1994-09-20 |