Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11070046 | Short-circuit protection circuit for self-arc-extinguishing type semiconductor element | Yasushi Nakayama, Yoshiko Tamada, Hiroyuki Takagi, Junichiro Ishikawa, Kazuhiro Otsu +1 more | 2021-07-20 |
| 10651839 | Power switching apparatus | Shota MORISAKI, Yoshiko Tamada, Yukihiko Wada, Hiroyuki Takagi | 2020-05-12 |
| 10027218 | Power semiconductor element driving circuit | Yasushi Nakayama, Yoshiko Tamada, Shoichi Orita | 2018-07-17 |