Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5675366 | Recording apparatus and recording head substrate for use in the same | Kimiyuki Hayasaki, Akira Katayama | 1997-10-07 |
| 5608431 | Bidirectional ink jet recording head | Akira Katayama | 1997-03-04 |