Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7936114 | Piezoelectric vibrator manufacturing method, piezoelectric vibrator, oscillator, electronic device, and radio-controlled watch | Masashi Numata, Kiyoshi Aratake, Kazuyoshi Sugama | 2011-05-03 |
| 7872401 | Piezoelectric vibrator with hermetically closed casing and filler comprising non-spherical conductive particles | Osamu Onitsuka, Kazuyoshi Sugama | 2011-01-18 |