Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691271 | Indolylazaphthalides and recording materials containing the same | Naoto Yanagihara, Kiyoshi Takeuchi, Toyohisa Oya, Masanobu Takashima, Syunsaku Higashi | 1997-11-25 |
NA
Naoki Asanuma
Overall (1997): #100,189 of 185,788Top 55%
1
Patents 1997