Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871925 | High-voltage pulse generating apparatus | Kiyotaka Yamauchi, Yoshihito Yoshizawa | 1989-10-03 |
| 4827214 | Method for measuring losses of a magnetic core | Kiyotaka Yamauchi | 1989-05-02 |
| 4811187 | DC-DC converter with saturable reactor reset circuit | Kiyotaka Yamauchi, Osamu Shimoe | 1989-03-07 |