Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8420724 | Cellulose resin composition and cellulose resin film | Kiyotatsu Iwanami, Yutaka YONEZAWA | 2013-04-16 |
| 7348380 | Polyester plasticizer and chlorine-containing resin compositions | Shinji Koube, Kiyotatsu Iwanami, Teruo Arai | 2008-03-25 |