Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4356425 | Electrode for tuning fork type quartz crystal vibrator | Shigeru Kogure, Eishi Momosaki | 1982-10-26 |
| 4320320 | Coupled mode tuning fork type quartz crystal vibrator | Eishi Momosaki, Shigeru Kogure | 1982-03-16 |