Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7144614 | Polyester polymerization catalyst, polyester produced by using the same, and process for producing polyester | Takahiro Nakajima, Ken-ichi Tsukamoto, Shoichi Gyobu, Nobuo MORIYAMA, Mitsuyoshi Kuwata +3 more | 2006-12-05 |
| 7132383 | Polymerization catalyst for polyester, polyester produced with the same, and process for producing polyester | Takahiro Nakajima, Kenichi Tsukamoto, Shoichi Gyobu, Fumikazu Yoshida, Maki Sato +9 more | 2006-11-07 |
| 6129961 | Polyester resin and production method thereof | Hirotoshi Sonoda, Atsushi Hara, Mitsuhiro Harada, Yoshio Araki, Shouji Kikuchi +6 more | 2000-10-10 |