Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683850 | Diazo heat-sensitive recording material comprising hydroxy coumarin as a coupler | Tetunori Matushita, Hiroshi Sato, Kimiatsu Nomura, Mitsuyuki Tsurumi | 1997-11-04 |
SI
Sadao Ishige
Overall (1997): #81,346 of 185,788Top 45%
1
Patents 1997