Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12317033 | Piezoelectric vibration plate and piezoelectric sound generating component | Tadashi Okuzawa, Toshiyuki Sakai | 2025-05-27 |
| 11743655 | Piezoelectric sound-generating component case and piezoelectric sound-generating component | Tadashi Okuzawa, Koji Yasojima, Ryuuji Morishita | 2023-08-29 |
| 10616689 | Piezoelectric sounding component | Kazuchika Yamada, Masakazu Yamauchi | 2020-04-07 |
| 10397707 | Piezoelectric sounding component | Masakazu Yamauchi, Junichi Murakami, Kazuchika Yamada, Takaaki Kaji | 2019-08-27 |
| 7042138 | Piezoelectric acoustic transducer | Kiyotaka Tajima, Manabu Sumita | 2006-05-09 |
| 6744180 | Piezoelectric electroacoustic transducer | Yoshitaka Nakamura, Kiyotaka Tajima, Tetsuo Takeshima, Tadashi Okuzawa | 2004-06-01 |
| 6700302 | Piezoelectric resonator | Takashi Yamamoto | 2004-03-02 |
| 6297581 | Piezoelectric element and electronic component including same | — | 2001-10-02 |
| 6268684 | Piezoelectric resonator and a piezoelectric component including piezoelectric resonator | — | 2001-07-31 |