Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6455106 | Method of forming oxide-ceramics film | Hong Qiu, Kouji Sumi, Masato Shimada, Kazumasa Hasegawa | 2002-09-24 |
| 6419848 | Piezoelectric actuator, ink-jet type recording head, manufacturing method therefor, and ink-jet printer | Hong Qiu, Koji Sumi, Haruo Nakamura | 2002-07-16 |
| 6419849 | Method for manufacturing piezoelectric material | Hong Qiu, Koji Sumi, Masanori Okuyama, Zhiqiang Wei | 2002-07-16 |
| 6402304 | Piezoelectric actuator, ink jet printing head, printer, method for manufacturing piezoelectric actuator, and method for manufacturing ink jet printing head | Hong Qiu, Koji Sumi, Masato Shimada, Masanori Okuyama, Zhi Quiang Wei | 2002-06-11 |
| 6378996 | Ink-jet recording head and ink-jet recording apparatus | Masato Shimada, Akira Matsuzawa, Yoshinao Miyata | 2002-04-30 |