Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888783 | Semiconductor laser device | Keisuke Kojima, Kazuo Kyuma, Susumu Noda, Masaaki Kameya, Koichi Hammanaka | 1989-12-19 |
JO
Jun Ohta
Overall (1989): #91,535 of 140,708Top 70%
1
Patents 1989