Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877567 | Method for manufacturing an electrically insulating formed channel member | Yasuji Yoshizumi | 1989-10-31 |
YM
Yoshiyuki Matsuoka
Overall (1989): #40,782 of 140,708Top 30%
1
Patents 1989