Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881989 | Fe-base soft magnetic alloy and method of producing same | Yoshihito Yoshizawa, Shigeru Oguma | 1989-11-21 |
| 4871925 | High-voltage pulse generating apparatus | Yoshihito Yoshizawa, Shin Nakajima | 1989-10-03 |
| 4827214 | Method for measuring losses of a magnetic core | Shin Nakajima | 1989-05-02 |
| 4811187 | DC-DC converter with saturable reactor reset circuit | Shin Nakajima, Osamu Shimoe | 1989-03-07 |