Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6548940 | Speaker | — | 2003-04-15 |
| 6356642 | Multi-speaker system | Takeshi Nakamura, Takao Mori | 2002-03-12 |
| 6242848 | Oscillation gyroscope | Akira Mori, Yukio Sakashita | 2001-06-05 |
| 6243475 | Speaker | Takeshi Nakamura | 2001-06-05 |
| 6141429 | Speaker | — | 2000-10-31 |
| 6130951 | Speaker having multiple sound bodies and multiple sound openings | Takeshi Nakamura | 2000-10-10 |
| 6108429 | Speaker adapted for use as a center woofer in 3-dimensional sound system | Takeshi Nakamura | 2000-08-22 |
| 6064746 | Piezoelectric speaker | Takeshi Nakamura | 2000-05-16 |
| 5913244 | Vibrator | — | 1999-06-15 |
| 5896460 | Speaker | Takeshi Nakamura | 1999-04-20 |
| 5767611 | Structure for supporting an oscillator | Takeshi Nakamura | 1998-06-16 |
| 5668316 | Vibrating gyroscope | Kiyoshi Iwai, Jyunichi Hashimoto, Takeshi Nakamura, Akira Kumada, Yoshio Kawai +2 more | 1997-09-16 |
| 5635647 | Piezoelectric vibrator | — | 1997-06-03 |
| 5574219 | Piezoelectric vibrator | — | 1996-11-12 |
| 5497044 | Supporting structure for a vibrator | Takeshi Nakamura, Takayuki Kaneko | 1996-03-05 |
| 5479822 | Casing for a vibratory gyroscope | Shozo Motohashi, Katsumi Fujimoto, Hiroshi Nishiyama, Kazuhiro Yoshitani, Yukio Sakashita | 1996-01-02 |
| 5434365 | Supporting structure for a vibrator | Akira Mori, Takeshi Nakamura | 1995-07-18 |
| 5345822 | Vibratory gyroscope having a support member | Takeshi Nakamura, Yukio Sakashita | 1994-09-13 |
| 4827380 | Electric double-layer capacitor | Kouichi Watanabe | 1989-05-02 |
| 4283649 | Piezoelectric ultrasonic transducer with resonator laminate | — | 1981-08-11 |