Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874481 | N,N'-diphenylbenzidine polymer and method of producing the same | Masao Yoshikawa, Akio Kojima | 1989-10-17 |
TS
Tetsuro Suzuki
Overall (1989): #51,338 of 140,708Top 40%
1
Patents 1989