Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6380796 | Semiconductor power converting apparatus | Hiromitsu Sakai, Hidetoshi Aizawa, Shuji Katoh, Masahiro Nagasu | 2002-04-30 |
| 6242968 | Semiconductor power converting apparatus | Hiromitsu Sakai, Hidetoshi Aizawa, Shuji Katoh, Masahiro Nagasu | 2001-06-05 |
| 5424937 | Gate drive power source for electric power converter | Akiteru Ueda, Hiroshi Narita, Mitsuyuki Hombu, Hidetoshi Aizawa | 1995-06-13 |
| 4223236 | Gate controlling apparatus for a thyristor valve | Atsumi Watanabe | 1980-09-16 |