Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5976233 | Water-based pigment ink, and ink-jet recording method and instruments using the same | Koichi Osumi, Yoshifumi Hattori, Yoshihisa Takizawa, Hisashi Teraoka | 1999-11-02 |
| 5728201 | Ink, and ink-jet recording method and instruments using the same | Eriko Saito, Mayumi Yamamoto | 1998-03-17 |
| 5451251 | Ink, and ink-jet recording method and instrument using the same | Kumiko Mafune, Tsuyoshi Eida, Keiichi Murai, Yoshifumi Hattori, Mayumi Yamamoto +9 more | 1995-09-19 |