Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9441105 | Biodegradable resin composition, and biodegradable film | Yasushi Ichikawa, Yuuki Tetsuka | 2016-09-13 |
| 9175127 | Method for producing an aliphatic polyester having increased molecular weight | Yasushi Ichikawa, Akira Ishii | 2015-11-03 |
| 9138933 | Process and apparatus for producing crystalline resin film or sheet | Junichiro Washiyama, Koji Yamada, Takeshi Nakajima, Akihiro Otsubo, Masamichi Hikosaka +2 more | 2015-09-22 |
| 8962115 | Fire-resistant piping material | Masashi Okabe, Koji Ichihara, Toshifumi Sanni | 2015-02-24 |
| 8865081 | Method for producing aliphatic polyester having increased molecular weight | Yasushi Ichikawa, Akira Ishii | 2014-10-21 |
| 8852517 | Method for producing aliphatic polyester having increased molecular weight | Yasushi Ichikawa, Akira Ishii | 2014-10-07 |
| 8728616 | Polymer sheet and method for producing same | Masamichi Hikosaka, Kiyoka Okada, Kaori Watanabe, Junichiro Washiyama, Koji Yamada +2 more | 2014-05-20 |
| 5714569 | Aliphatic polyester resin and method for producing same | Mitsuhiro Imaizumi, Ryutaro Fujihira, Yasushi Ichikawa, Jun Suzuki, Yoshihiro Moteki +2 more | 1998-02-03 |
| 5314927 | Polyester foamed articles and method for producing the same | Haruhiko Kondo, Mitsuhiro Imaizumi, Ryosuke Kamei, Eiichiro Takiyama | 1994-05-24 |