Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7859172 | Piezoelectric resonator, manufacturing method thereof and lid for piezoelectric resonator | Katsuo Ishikawa, Akitoshi Hara | 2010-12-28 |
| 7714484 | Piezoelectric resonator and manufacturing method therefor | Akitoshi Hara, Katsuo Ishikawa | 2010-05-11 |
| D580592 | Piezoelectric device | Akitoshi Hara, Katsuo Ishikawa | 2008-11-11 |
| D580096 | Piezoelectric device | Akitoshi Hara, Katsuo Ishikawa | 2008-11-04 |