Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830447 | Optical wavelength conversion device | Kozi Kamiyama, Yoji Okazaki, Masaki Okazaki, Seiiti Kubodera | 1989-05-16 |
ST
Syozo Takeuchi
Overall (1989): #53,973 of 140,708Top 40%
1
Patents 1989