Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11028186 | Cellulose derivative, cellulose resin composition, molded body and product using same | Kiyohiko Toyama, Masatoshi Iji, Shukichi Tanaka | 2021-06-08 |
| 10982009 | Cellulose derivative and use thereof | Shukichi Tanaka, Kiyohiko Toyama, Masatoshi Iji | 2021-04-20 |
| 10934368 | Cellulose resin, material for molding, molded body and process for producing cellulose resin | Shukichi Tanaka, Masatoshi Iji | 2021-03-02 |