Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881989 | Fe-base soft magnetic alloy and method of producing same | Kiyotaka Yamauchi, Shigeru Oguma | 1989-11-21 |
| 4871925 | High-voltage pulse generating apparatus | Kiyotaka Yamauchi, Shin Nakajima | 1989-10-03 |