Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6419848 | Piezoelectric actuator, ink-jet type recording head, manufacturing method therefor, and ink-jet printer | Hong Qiu, Tsutomu Nishiwaki, Haruo Nakamura | 2002-07-16 |
| 6419849 | Method for manufacturing piezoelectric material | Hong Qiu, Tsutomu Nishiwaki, 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, Masato Shimada, Tsutomu Nishiwaki, Masanori Okuyama, Zhi Quiang Wei | 2002-06-11 |