Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12404353 | Olefin polymerization catalyst, olefin polymerization catalyst production method, and olefin polymer production method using the olefin polymerization catalyst | Ryota Fujita | 2025-09-02 |
| 10336837 | Process for producing olefin polymer and olefin polymer | Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka +1 more | 2019-07-02 |
| 10336838 | Process for producing olefin polymer and olefin polymer | Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka +1 more | 2019-07-02 |
| 9896526 | Process for producing olefin polymer and olefin polymer | Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka +1 more | 2018-02-20 |
| 9796799 | Transition metal compound, olefin polymerization catalyst, and olefin polymer production process | — | 2017-10-24 |
| 9458257 | Process for producing olefin polymer and olefin polymer | Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka +1 more | 2016-10-04 |
| 9458261 | Transition metal compound, olefin polymerization catalyst, and olefin polymer production process | — | 2016-10-04 |
| 8409480 | Process for preparing organic alkali metal compound and organic transition metal compound | Atsushi Sakuma | 2013-04-02 |
| 7879960 | Process for producing propylene polymer | Naritoshi Hirota, Mayumi Hiwara, Yasushi Tohi, Koji Kawai, Ryoji Mori +3 more | 2011-02-01 |
| 7834204 | Fluorene derivative, transition metal compound, catalyst for olefin polymerization, and process for producing olefin polymer | Koji Endo, Naritoshi Hirota, Yuichi Yamamura, Koji Kawai | 2010-11-16 |
| 7803888 | Olefin-based polymers and uses thereof | Nobuo Kawahara, Shinichi Kojoh, Shingo Matsuo, Hideyuki Kaneko, Tomoaki Matsugi +7 more | 2010-09-28 |
| 7678934 | Propylene copolymer, polypropylene composition and uses thereof, transition metal compound and olefin polymerization catalyst | Naritoshi Hirota, Hiromu Kaneyoshi, Koji Kawai, Nobuo Kawahara | 2010-03-16 |
| 7488789 | Propylene copolymer, polypropylene composition, and uses thereof, transition metal compounds and catalyst for olefin polymerization | Shigenobu Ikenaga, Keiji Okada, Hiroshi Hoya, Norihide Inoue, Naritoshi Hirota +6 more | 2009-02-10 |
| 7396900 | Thiourethane-based optical material | Mamoru Tanaka, Shigetoshi Kuma, Seiichi Kobayashi | 2008-07-08 |
| 7244808 | Thiourethane-based optical material | Mamoru Tanaka, Shigetoshi Kuma, Seiichi Kobayashi | 2007-07-17 |