Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5045924 | Mounting structure of semiconductor converter | — | 1991-09-03 |
| 4747450 | Method for producing heat sink and heat sink thus produced | Shigeo Nonaka, Takuro Ito, Toshiaki Matsumoto | 1988-05-31 |
| 4675720 | Enclosed thyristor valve | Tadashi Takahashi | 1987-06-23 |
| 4475152 | Water-cooled high voltage device | Tadashi Takahashi, Sumio Kobayashi | 1984-10-02 |