Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859568 | Photographic image recording method using silver halide and vinyl monomer | Keiji Takeda | 1989-08-22 |
YH
Yoshihide Hayakawa
Overall (1989): #41,254 of 140,708Top 30%
1
Patents 1989