Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802942 | Method of making multilayer composite hollow fibers | Hajime Itoh, Jun Kamo, Haruhiko Yoshida | 1989-02-07 |
TT
Tohru Takemura
Overall (1989): #48,022 of 140,708Top 35%
1
Patents 1989