Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8293862 | Polyester polymerization catalyst, polyester produced by using the same, and a process for producing polyester | Takahiro Nakajima, Ken-ichi Tsukamoto, Shoichi Gyobu | 2012-10-23 |
| 7208565 | Polymerization catalyst for polyesters, polyester produced with the same, and process for production of polyester | Takahiro Nakajima, Ken-ichi Tsukamoto, Shoichi Gyobu | 2007-04-24 |
| 7144614 | Polyester polymerization catalyst, polyester produced by using the same, and process for producing polyester | Takahiro Nakajima, Ken-ichi Tsukamoto, Shoichi Gyobu, Nobuo MORIYAMA, Yoshinao Matsui +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 |