Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833488 | Thermal-optical recording head | Jun Yamaguchi, Tadashi Miyakama | 1989-05-23 |
SM
Shigemitsu Mizutani
Overall (1989): #57,302 of 140,708Top 45%
1
Patents 1989