Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5006921 | Power semiconductor switching apparatus with heat sinks | Masaru Ishizuka, Yasuyuki Yokono, Asako Matsuura, Yoshio Kamei, Hiromichi Ohashi +2 more | 1991-04-09 |
| 4339691 | Discharge apparatus having hollow cathode | Osami Morimiya, Setsuo Suzuki | 1982-07-13 |