Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5328796 | Diazo type recording material utilizing microencapsulated diazo compound, a coupler and a hydroxyphenylsulfone derivative | Akihiro Shimomura, Makoto Ohno, Toshiharu Tanaka | 1994-07-12 |