Issued Patents 2002
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6455106 | Method of forming oxide-ceramics film | Kouji Sumi, Masato Shimada, Tsutomu Nishiwaki, Kazumasa Hasegawa | 2002-09-24 |
| 6419848 | Piezoelectric actuator, ink-jet type recording head, manufacturing method therefor, and ink-jet printer | Koji Sumi, Tsutomu Nishiwaki, Haruo Nakamura | 2002-07-16 |
| 6419849 | Method for manufacturing piezoelectric material | Koji Sumi, Tsutomu Nishiwaki, Masanori Okuyama, Zhiqiang Wei | 2002-07-16 |
| 6411017 | Piezoelectric device, ink jet recording head, and methods of manufacturing said device and head | Kouji Sumi, Tsutomu Nishikawa, Souichi Moriya | 2002-06-25 |
| 6402304 | Piezoelectric actuator, ink jet printing head, printer, method for manufacturing piezoelectric actuator, and method for manufacturing ink jet printing head | Koji Sumi, Masato Shimada, Tsutomu Nishiwaki, Masanori Okuyama, Zhi Quiang Wei | 2002-06-11 |
| 6387225 | Thin piezoelectric film element, process for the preparation thereof and ink jet recording head using thin piezoelectric film element | Masato Shimada, Tetsushi Takahashi, Hiroyuki Kamei | 2002-05-14 |