Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806813 | Motor | Akiyasu Sumi, Shigeru Yoshida, Akira Kurosawa, Tohru Takahashi, Yoshitaka Kondoh | 1989-02-21 |
TC
Tatsuo Chigira
Overall (1989): #53,842 of 140,708Top 40%
1
Patents 1989