Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877456 | Antioxidant wax for rubber | Kaoru Chikamune, Kazuo Inoue, Kyoshi Utsunomiya, Yoshii Hitofude | 1989-10-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877456 | Antioxidant wax for rubber | Kaoru Chikamune, Kazuo Inoue, Kyoshi Utsunomiya, Yoshii Hitofude | 1989-10-31 |