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, Sadao Ishige, Mitsuyuki Tsurumi | 1997-11-04 |
KN
Kimiatsu Nomura
Overall (1997): #117,957 of 185,788Top 65%
1
Patents 1997