Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6417147 | Cleaning agent composition, method for cleaning and use thereof | Masahiro Amemiya, Satoshi Saito, Katsuji Yano | 2002-07-09 |
| 4873295 | Novel polyether sulfone imide copolymers | Shigeru Kurosawa | 1989-10-10 |