Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7157540 | Olefinic polymer and process for producing the same | Shinji Abe, Hiroto Nishida | 2007-01-02 |
| 7037998 | Olefinic polymer and process for producing the same | Shinji Abe, Hiroto Nishida | 2006-05-02 |
| 6897268 | Fluidized bed polymerization apparatus and an olefin polymerization process | Ryouichi Yamamoto, Tomohiro Arase, Fumio Hattori, Yoshiaki Kikuchi, Hisayoshi Watanabe +1 more | 2005-05-24 |
| 6891002 | Process for producing polyolefin | Shinji Abe, Shotaro Matsuda, Hiroto Nishida, Michiharu Sakata, Tomohiro Arase | 2005-05-10 |
| 6858681 | Process for producing olefinic polymer | Shinji Abe, Hiroto Nishida | 2005-02-22 |
| 6472484 | Processes for producing polyolefin composition | Shinji Abe, Tomohiro Arase, Shotaro Matsuda | 2002-10-29 |
| 6461573 | Fluidized bed polymerization apparatus having temperature distribution monitoring | Ryouichi Yamamoto, Tomohiro Arase, Fumio Hattori, Yoshiaki Kikuchi, Hisayoshi Watanabe +1 more | 2002-10-08 |
| 6407184 | Method of multistage gas phase polymerization, apparatus therefor and device for reducing entrainment of subcomponents in polymer powder in apparatus for multistage gas phase polymerization | Shotaro Matsuda, Yoshiaki Kikuchi, Toshihiro Okano | 2002-06-18 |
| 6013741 | Method of terminating gas phase polymerization of olefin, method of initiating the polymerization and apparatus therefor | Kenji Doi, Tomohiro Arase, Ryouichi Yamamoto | 2000-01-11 |
| 5990272 | Method of treating polyolefin | Ryoichi Yamamoto, Hiroshi Nishikawa, Teruhisa Kojima | 1999-11-23 |
| 5804678 | Process for gas phase polymerization of olefin | Yoshinori Morita, Hiroshi Nishikawa, Yutaka Haneda, Kenji Doi | 1998-09-08 |
| 5799412 | Drying solid polymer apparatus | Ryoichi Yamamoto, Toshimi Hachimori, Teruhisa Kojima, Takahiro Mamyoda | 1998-09-01 |
| 5753191 | Gas distributor plate for a gas phase polymerization apparatus | Ryoichi Yamamoto, Takao Uetake, Yoshiaki Kikuchi, Kenji Doi | 1998-05-19 |