Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5602418 | Nitride based semiconductor device and manufacture thereof | Hideaki Imai, Tadahiko Hirai | 1997-02-11 |
| 5104633 | Method for producing high-purity metallic silicon and apparatus therefor | Yasuhiko Sakaguchi, Fukuo Aratani, Kazuhiro Uchino, Mitsugi Yoshiyagawa, Masato Ishizaki +1 more | 1992-04-14 |
| 5095196 | Security system with imaging function | — | 1992-03-10 |
| 4919521 | Electromagnetic device | Hiroaki Tada, Harunobu Yoshida, Hideo Kawahara | 1990-04-24 |