Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5319389 | Method of abnormal state detection for ink jet recording apparatus | Toshihiko Ujita, Kenjiro Watanabe | 1994-06-07 |
| 5182580 | Ink jet recording apparatus with abnormal state detection | Toshihiko Ujita | 1993-01-26 |