Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806446 | Photosensitive recording medium capable of image contrast adjustment | Naoyuki Hatta | 1989-02-21 |
SF
Satoshi Furukawa
Overall (1989): #59,502 of 140,708Top 45%
1
Patents 1989