Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE45057 | Method of manufacturing an ink jet recording head having piezoelectric element | Tetsushi Takahashi | 2014-08-05 |
| 7850288 | Ink jet recording head having piezoelectric element and electrode patterned with same shape and without pattern shift therebetween | Tetsushi Takahashi | 2010-12-14 |
| 7827659 | Method of manufacturing an ink jet recording head having piezoelectric element | Tetsushi Takahashi | 2010-11-09 |
| 7673975 | Ink jet recording head having piezoelectric element and electrode patterned with same shape and without pattern shift therebetween | Tetsushi Takahashi | 2010-03-09 |
| 7354140 | Ink jet recording head having piezoelectric element and electrode patterned with same shape and without pattern shift therebetween | Tetsushi Takahashi | 2008-04-08 |
| RE39474 | Method of manufacturing an ink jet recording head having reduced stress concentration near the boundaries of the pressure generating chambers | Tetsushi Takahashi, Akira Matsuzawa | 2007-01-23 |
| 7003857 | Method of producing an ink-jet printing head | Masato Shimada, Tetsushi Takahashi, Tsutomu Nishiwaki | 2006-02-28 |
| 6966635 | Ink jet recording head and ink jet recording apparatus comprising the same | Yoshinao Miyata, Shinri Sakai, Yutaka Furuhata | 2005-11-22 |
| 6616270 | Ink jet recording head and ink jet recording apparatus comprising the same | Yoshinao Miyata, Shinri Sakai, Yutaka Furuhata | 2003-09-09 |
| 6609785 | Ink jet recording head having piezoelectric element and electrode patterned with same shape and without pattern shift therebetween | Tetsushi Takahashi | 2003-08-26 |
| 6402971 | Ink jet recording head and manufacturing method therefor | Tetsushi Takahashi | 2002-06-11 |
| 6334244 | Method for producing ink-jet recording head | — | 2002-01-01 |
| 6260960 | Ink jet print head formed through anisotropic wet and dry etching | Tetsushi Takahashi | 2001-07-17 |
| 6209992 | Ink-jet recording head, ink-jet recording apparatus using the same, and method for producing ink-jet recording head | — | 2001-04-03 |
| 6183070 | Ink jet recording head and process of manufacturing the ink jet recording head | — | 2001-02-06 |
| 6142614 | Piezoelectric actuator using passivation film or interlayer insulating film along with an insulating film to obtain better adhesion | Akira Matsuzawa | 2000-11-07 |
| 6126279 | Ink jet printing head for improving resolution and decreasing crosstalk | Masato Shimada, Tetsushi Takahashi, Tsutomu Nishiwaki | 2000-10-03 |
| 6113225 | Ink jet type recording head | Yoshinao Miyata, Shinri Sakai | 2000-09-05 |
| 6109736 | Ink jet recording head containing a sealed fluid for protecting a piezoelectric vibrator | Yoshinao Miyata, Masato Shimada, Kazuhiko Fujimori, Koji Sumi, Shiro Yazaki +1 more | 2000-08-29 |
| 6089701 | Ink jet recording head having reduced stress concentration near the boundaries of pressure generating chambers | Tetsushi Takahashi, Akira Matsuzawa | 2000-07-18 |
| 6019458 | Ink-jet printing head for improving resolution and decreasing crosstalk | Masato Shimada, Tetsushi Takahashi, Tsutomu Nishiwaki | 2000-02-01 |