Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866324 | Brushless motor | Masafumi Yamakawa, Takao Shibayama | 1989-09-12 |
SY
Suezo Yuzawa
Overall (1989): #37,258 of 140,708Top 30%
1
Patents 1989