Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6734747 | Piezoelectric oscillator | Masayuki Ishikawa, Yukio Naito | 2004-05-11 |
| 4823174 | Bipolar transistor and process of fabrication thereof | Tadatsugu Itoh, Yasuhiro Hosono | 1989-04-18 |