Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888781 | Semiconductor laser | Etsuji Omura, Katsuhiko Goto, Shogo Takahashi, Akira Takemoto | 1989-12-19 |
HN
Harumi Namba
Overall (1989): #108,050 of 140,708Top 80%
1
Patents 1989