Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799762 | Resin composite | Nobuhiro Akasaka | 1989-01-24 |
TK
Tatsuya Kakuta
Overall (1989): #53,358 of 140,708Top 40%
1
Patents 1989