Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6723794 | Olefin thermoplastic elastomer composition comprising crystalline polyolefin resin and ethylene/&agr;-olefin/nonconjugated polyene copolymer rubber | Masaaki Kawasaki, Keiji Okada, Tetsuo Tojo, Kyoko Kobayashi, Yuichi Itoh +2 more | 2004-04-20 |
| 6040407 | Chain polyene group-containing norbornene compound and unsaturated ethylene copolymer using the same | Tatsuyoshi Ishida, Masaaki Yasuda, Hitoshi Onishi, Noriaki Kihara, Toshiyuki Tsutsui +2 more | 2000-03-21 |
| 5922823 | Ethylene-.alpha.-olefin-nonconjugated polyene random copolymer | Toshiyuki Tsutsui | 1999-07-13 |
| 5912303 | Ethylene/.alpha.-olefin/nonconjugated polyene terpolymer rubber composition and vulcanized rubber obtained therefrom | Hidenari Nakahama, Masaaki Kawasaki, Tetsuo Tojo, Totshiyuki Tsutsui | 1999-06-15 |
| 5869563 | Ethylene/.alpha.-olefin/nonconjugated polyene copolymer rubber composition | Masaaki Kawasaki, Hidenari Nakahama, Tetsuo Tojo, Toshiyuki Tsutsui, Kyoko Kobayashi | 1999-02-09 |
| 5854349 | Cycloolefin copolymer composition | Yoshiharu Abe | 1998-12-29 |
| 5837791 | Unsaturated copolymer of ethylene and process for preparing the same | Masaaki Kawasaki, Hidenari Nakahama, Tatsuyoshi Ishida, Katsuya Takahashi, Toshiyuki Tsutsui +3 more | 1998-11-17 |
| 5807948 | Vulcanizable rubber composition containing ehtylene-.alpha.-olefin-nonconjugated polyene random copolymer | Toshiyuki Tsutsui, Masaaki Kawasaki, Keiji Okada, Hidenari Nakahama, Tetsuo Tojo | 1998-09-15 |
| 5770655 | Polymer composition and core-shell elastomer used therefor | Masayuki Okabe, Masahiro Kishine | 1998-06-23 |
| 5756575 | Ethylene/.alpha.-olefin/nonconjugated polyene copolymer rubber composition | Masaaki Kawasaki, Hidenari Nakahama, Tetsuo Tojo, Toshiyuki Tsutsui, Kyoko Kobayashi | 1998-05-26 |
| 5698751 | Branched polyene compounds and production thereof | Tatsuyoshi Ishida, Masaaki Yasuda, Hitoshi Ohnishi, Noriaki Kihara, Toshiyuki Tsutsui | 1997-12-16 |
| 5696214 | Process for preparing ethylene-.alpha.-olefin-nonconjugated polyene random copolymer | Toshiyuki Tsutsui, Masaaki Kawasaki, Keiji Okada, Hidenari Nakahama, Tetsuo Tojo | 1997-12-09 |
| 5650471 | Process for the production of cycloolefin random copolymer | Yoshiharu Abe | 1997-07-22 |
| 5610254 | Ethylene-.alpha.-olefin-nonconjugated polyene random copolymer, rubber composition, and process for preparing the random copolymer | Toshiyuki Tsutsui, Masaaki Kawasaki, Keiji Okada, Tetsuo Tojo, Tatsuya Tanizaki | 1997-03-11 |
| 5574100 | Polymer composition and core-shell elastomer used therefor | Masayuki Okabe, Masahiro Kishine | 1996-11-12 |
| 5567776 | Cycloolefin copolymer composition and method for the preperation thereof | Yoichiro Tsuji, Yoshiharu Abe, Toshimasa Takata | 1996-10-22 |
| 5567777 | Cycloolefin copolymer composition and method for the preparation thereof | Yoichiro Tsuji, Yoshiharu Abe, Toshimasa Takata | 1996-10-22 |
| 5559199 | Process for production of ethylene-cyclic olefin copolymer | Yoshiharu Abe, Akinori Toyota | 1996-09-24 |
| 5494969 | Cycloolefin polymer composition | Yoshiharu Abe, Yoichiro Tsuji | 1996-02-27 |
| 5457249 | Process for isomerizing endo-form of aromatic group-containing norbornenes to exo-form thereof, isomer mixture of aromatic group-containing norbornenes and process for preparing same, and ethylene/aromatic group-containing norborne copolymer and process | Yoichiro Tsuji, Yoshihisa Toda | 1995-10-10 |
| 5310931 | Isomerization of cycloolefin from endo-form to exo-form and copolymerization of cycloolefin and ethylene | Hideaki Yamaguchi, Shuji Minami, Akira Mizuno, Hiroo Wamura | 1994-05-10 |
| 5272235 | Cycloolefin random copolymer and process for preparing same | Kenji Wakatsuru, Takehiko Kawate, Shigemi Shiraki, Shuji Minami, Masayuki Okabe +2 more | 1993-12-21 |
| 5270393 | Ethylene cycloolefin random copolymer compositions | Masayuki Okabe | 1993-12-14 |
| 5239006 | Cycloolefin random copolymer composition and uses thereof | Masayuki Okabe | 1993-08-24 |
| 5225503 | Process for preparing cycloolefin random copolymer | Hideaki Yamaguchi | 1993-07-06 |