Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7605521 | Hermetically sealed structure, piezoelectric device and improvement of method for manufacturing the same | — | 2009-10-20 |
| 6005329 | Method and apparatus for sealing piezoelectric resonator via laser welding | Tatsuo Ikeda, Eiji Karaki | 1999-12-21 |
| 5736710 | Method and apparatus for sealing piezoelectric resonator via laser welding | Tatsuo Ikeda, Eiji Karaki | 1998-04-07 |