Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622549 | Ink for ink jet recording and ink jet recording process | Toshitake Yui, Eisuke Hiraoka, Yoshiro Yamashita, Ken Hashimoto | 1997-04-22 |
| 5605566 | Ink for ink jet recording and ink jet recording process | Toshitake Yui, Akihiko Chujo, Eisuke Hiraoka, Hitoshi Kojima, Atsushi Suzuki +1 more | 1997-02-25 |