Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5055568 | Process for preparation of cellulose nitrate films | Hiroaki Nakagawa, Masahiro Kondo | 1991-10-08 |
| 4812279 | Process for preparation of cellulose ester films | Hiroaki Nakagawa, Masahiro Kondo | 1989-03-14 |