Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7944126 | Piezoelectric ceramic, vibrator and ultrasonic motor | Daisuke Tanaka, Takeo Tsukada | 2011-05-17 |
| 7901590 | Piezoelectric ceramic composition | Takeo Tsukada | 2011-03-08 |
| 7507347 | Piezoelectric ceramic composition and laminated piezoelectric element | Kumiko Iezumi, Junichi Yamazaki, Norimasa Sakamoto, Takeo Tsukada, Keisuke Itakura +5 more | 2009-03-24 |
| 7309450 | Piezoelectric porcelain and method for preparation thereof | Masaru Nanao, Yasuharu Miyauchi, Tamotsu Ishiyama, Shogo Murosawa, Yoshiko Gokita | 2007-12-18 |
| 7264744 | Piezoelectric ceramic and piezoelectric device | Masaru Nanao, Hideya Sakamoto, Takeo Tsukada | 2007-09-04 |
| 6793843 | Piezoelectric ceramic | Kenji Horino, Shogo Murosawa, Yoshiko Gokita | 2004-09-21 |
| 6413443 | Piezoelectric ceramic and piezoelectric device | Junichi Yamazaki, Yoshiko Gokita | 2002-07-02 |
| 6411012 | Multilayer piezoelectric element and method of producing the same | Kenji Horino, Makoto Morita, Syuuzi Itoh, Minami Kudoh | 2002-06-25 |
| 6207069 | Piezoelectric ceramics and piezoelectric device | Kazutaka Suzuki, Yoshiko Gokita, Takumi SATOU, Keisuke Itakura | 2001-03-27 |
| 5640136 | Voltage-dependent nonlinear resistor | Masatada Yodogawa, Toshiyuki Yamazaki, Hitomi Naitou, Dai Matsuoka | 1997-06-17 |