Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6680560 | Heat resistant quartz-crystal unit | Mikio Saito, Shigeru Obara, Mituaki Koyama | 2004-01-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6680560 | Heat resistant quartz-crystal unit | Mikio Saito, Shigeru Obara, Mituaki Koyama | 2004-01-20 |