Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4613486 | Semiconductor boule pulling rod | Toshihiro Kotani | 1986-09-23 |
| 4465969 | Voltage and electric field measuring device using light | Koji Tada, Hirokuni Nanba, Yoshiki Kuhara | 1984-08-14 |