Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880857 | Carbon black-graft polymer, method for production thereof, and use thereof | Mitsuo Kushino, Hayato Ikeda, Nobuaki Urashima, Masuji Izubayashi, Shigeru Tanimori +4 more | 1989-11-14 |