Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5488101 | Trisazo compounds, method for dyeing fiber materials, paper or leather using the same and inks containing the same | Kazuya Ogino, Kingo Akahori, Naoki Harada, Yutaka Kayane, Hideo Kawashita | 1996-01-30 |
| 5183501 | Ink compositions for ink jet recording | Hideo Kawashita, Kazuya Ogino | 1993-02-02 |
| 5149366 | Disazo compound and ink composition containing the same | Hideo Kawashita, Kazuya Ogino | 1992-09-22 |