Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10498311 | Crystal resonator | Tetsuya Sato, Masaaki Nakahara, Tomonori SHIBAZAKI, Yuki OI, Yuya NISHIMURA | 2019-12-03 |
| 10425059 | Crystal resonator | Tetsuya Sato, Masaaki Nakahara, Tomonori SHIBAZAKI, Yuki OI, Yuya NISHIMURA | 2019-09-24 |
| 8030827 | Crystal unit | Takahiko Iwasaki, Kouichi Hara | 2011-10-04 |
| 7939768 | Crystal unit | Kouichi Hara | 2011-05-10 |
| 7863802 | Quartz crystal element made of double-rotation Y-cut quartz crystal plate | Akio Chiba | 2011-01-04 |
| 7061164 | Crystal oscillator | Takahiko Iwasaki, Genwa Koki, Masaaki Nakahara | 2006-06-13 |
| 7011887 | IT-cut quartz crystal unit | Genwa Koki, Kouichi Hara | 2006-03-14 |
| 6680560 | Heat resistant quartz-crystal unit | Genwa Koki, Mikio Saito, Mituaki Koyama | 2004-01-20 |
| 6300707 | Quartz crystal unit | Sachiko Takehana, Mitsuaki Koyama | 2001-10-09 |