Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866324 | Brushless motor | Suezo Yuzawa, Masafumi Yamakawa | 1989-09-12 |
TS
Takao Shibayama
Overall (1989): #52,385 of 140,708Top 40%
1
Patents 1989