Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802942 | Method of making multilayer composite hollow fibers | Tohru Takemura, Hajime Itoh, Haruhiko Yoshida | 1989-02-07 |
JK
Jun Kamo
Overall (1989): #91,715 of 140,708Top 70%
1
Patents 1989