Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803702 | Piezoelectric element and method of manufacturing same | Hong Qiu, Koji Sumi, Masanori Okuyama, Zhiqiang Wei | 2004-10-12 |
| 6639340 | Method for manufacturing piezoelectric element, and piezoelectric element, ink-jet recording head and printer | Hong Qiu, Koji Sumi, Souichi Moriya, Masato Shimada | 2003-10-28 |
| 6571446 | Method for manufacturing piezoelectric luminous element | Hong Qiu, Koji Sumi | 2003-06-03 |
| 6551652 | Process for producing a piezoelectric element using a first SOL and a second SOL having a lead content greater than the first SOL | Hong Qiu, Soichi Moriya, Hiroyuki Kamei, Koji Sumi, Masami Murai | 2003-04-22 |
| 6502930 | Ink jet recording head, method for manufacturing the same, and ink jet recorder | Masato Shimada, Akira Matsuzawa, Yoshinao Miyata, Hiroyuki Kamei | 2003-01-07 |
| 6455106 | Method of forming oxide-ceramics film | Hong Qiu, Kouji Sumi, Masato Shimada, Kazumasa Hasegawa | 2002-09-24 |
| 6419849 | Method for manufacturing piezoelectric material | Hong Qiu, Koji Sumi, Masanori Okuyama, Zhiqiang Wei | 2002-07-16 |
| 6419848 | Piezoelectric actuator, ink-jet type recording head, manufacturing method therefor, and ink-jet printer | Hong Qiu, Koji Sumi, Haruo Nakamura | 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 |
| 6332672 | Ink jet recording head including a cap member sealing piezoelectric vibrators | Shiro Yazaki, Shinri Sakai | 2001-12-25 |
| 6332254 | Process for producing a laminated ink-jet recording head | Minoru Usui, Masato Shimada, Masami Murai, Kouji Sumi | 2001-12-25 |
| 6284434 | Piezoelectric thin film element fabrication method | Hiroyuki Kamei, Makoto Matsuzaki, Masato Shimada, Akira Matsuzawa | 2001-09-04 |
| 6281617 | Piezoelectric luminous element, display device and method for manufacturing same | Hong Qiu, Koji Sumi | 2001-08-28 |
| 6250753 | Ink-jet recording head | Yoshinao Miyata | 2001-06-26 |
| 6193360 | Ink-jet recording head | Yoshinao Miyata | 2001-02-27 |
| 6158847 | Laminated ink-jet recording head, a process for production thereof and a printer equipped with the recording head | Minoru Usui, Masato Shimada, Masami Murai, Kouji Sumi | 2000-12-12 |
| 6147438 | Piezoelectric film element and manufacturing method thereof, and ink jet recording head | Masami Murai, Kazuo Hashimoto, Toshihiko Anno | 2000-11-14 |
| 6126279 | Ink jet printing head for improving resolution and decreasing crosstalk | Masato Shimada, Tetsushi Takahashi, Tsutomu Hashizume | 2000-10-03 |
| 6103072 | Piezoelectric thin-film device, process for manufacturing the same, and ink-jet recording head using the same | Kouji Sumi, Masami Murai, Masato Shimada | 2000-08-15 |
| 6051914 | Piezoelectric device, actuator using the same, and ink-jet recording head | — | 2000-04-18 |
| 6019458 | Ink-jet printing head for improving resolution and decreasing crosstalk | Masato Shimada, Tetsushi Takahashi, Tsutomu Hashizume | 2000-02-01 |
| 6013970 | Piezoelectric thin-film device process for manufacturing the same, and ink-jet recording head using the same | Kouji Sumi, Masami Murai, Masato Shimada | 2000-01-11 |
| 5922218 | Method of producing ink jet recording head | Yoshinao Miyata | 1999-07-13 |
| 5754205 | Ink jet recording head with pressure chambers arranged along a 112 lattice orientation in a single-crystal silicon substrate | Yoshinao Miyata | 1998-05-19 |