Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885746 | Frequency converter | Takeo Fukushima, Takahiro Furukawa, Yoshiaki Yato, Kenji Sato, Naonobu Fujimoto +1 more | 1989-12-05 |
MM
Masami Mizuguchi
Overall (1989): #79,945 of 140,708Top 60%
1
Patents 1989