Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868097 | Heat development dye image forming method with surface active agents | Masatoshi Kato, Masakazu Yoneyama | 1989-09-19 |
YA
Yasuo Aotsuka
Overall (1989): #42,307 of 140,708Top 35%
1
Patents 1989