Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818646 | Polypyrrole film and method of producing the same | Toshiyuki Ohsawa | 1989-04-04 |
MT
Masaaki Takakubo
Overall (1989): #78,541 of 140,708Top 60%
1
Patents 1989