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Patent applications and USPTO patent grants for Tsukamoto; Ken-ichi.The latest application filed is for "polyester polymerization catalyst, polyester produced by using the same, and a process for producing polyester".
Patent | Date |
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Polyester polymerization catalyst, polyester produced by using the same, and a process for producing polyester Grant 8,293,862 - Nakajima , et al. October 23, 2 | 2012-10-23 |
Polyester Polymerization Catalyst, Polyester Produced By Using The Same, And A Process For Producing Polyester App 20070149757 - NAKAJIMA; Takahiro ;   et al. | 2007-06-28 |
Polymerization catalyst for polyesters, polyester produced with the same, and process for production of polyester Grant 7,208,565 - Nakajima , et al. April 24, 2 | 2007-04-24 |
Polyester polymerization catalyst, polyester produced by using the same, and process for producing polyester Grant 7,144,614 - Nakajima , et al. December 5, 2 | 2006-12-05 |
Polyester polymerization catalyst, polyester produced by using the same, and process for producing polyester App 20030083191 - Nakajima, Takahiro ;   et al. | 2003-05-01 |
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