Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6613131 | Gas-liquid separation membrane and production method thereof | Toshihiko Ujita, Akira Tsujimoto, Yasuo Kotaki, Kiyomitsu Kudo | 2003-09-02 |
| 6520611 | Print head and printer apparatus using the same | Hiroyuki Ishinaga, Fumio Murooka, Tatsuo Furukawa, Hiroyuki Maru, Masaaki Izumida +1 more | 2003-02-18 |
| 6508533 | Ink-jet printing apparatus and recovery processing method of ejection port | Akira Tsujimoto, Tadayoshi Inamoto, Isao Kimura, Aya Yoshihira, Kiyomitsu Kudo +1 more | 2003-01-21 |
| 6508538 | Liquid ejection head, head cartridge and ejection apparatus with plural, independent liquid supply means | Toru Suzuki, Akira Tsujimoto | 2003-01-21 |