Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8058941 | Voltage control type temperature compensation piezoelectric oscillator | Shigehisa Kurogo, Masayuki Ishikawa, Takehiro Yamamoto, Norihito Matsukawa | 2011-11-15 |
| 7986194 | Oscillator | Takehiro Yamamoto | 2011-07-26 |