Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693374 | Alpha-resorcyclic acid ester derivatives and recording materials using the same | Shunsaku Higashi, Ken Iwakura | 1997-12-02 |
HY
Hisao Yamada
Overall (1997): #140,027 of 185,788Top 80%
1
Patents 1997