Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885746 | Frequency converter | Masami Mizuguchi, Takahiro Furukawa, Yoshiaki Yato, Kenji Sato, Naonobu Fujimoto +1 more | 1989-12-05 |
| 4836774 | Method and apparatus for heating a strip of metallic material in a continuous annealing furnace | Masahiro Harada, Kenichi Yanagi, Kusuo Furukawa, Naohiko Soeda, Norio Ohta +2 more | 1989-06-06 |