Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6255425 | Syndiotactic polypropylene copolymer and extruded polypropylene articles | Tadashi Asanuma, Tetsunosuke Shiomura, Tateyo Sasaki, Osamu Uchida, Tutomu Iwatani +2 more | 2001-07-03 |
| 5656371 | Insulating composition and formed article thereof | Masaki Kawahigashi, Hiroshi Kato, Ryuichi Sugimoto, Katsumi Yoshino | 1997-08-12 |
| 5624621 | Process of making polyprophylene fibers | Tadashi Asanuma, Tetsunosuke Shiomura, Shigeru Kimura, Yoichi Kawai, Keigo Suehiro +1 more | 1997-04-29 |
| 5548007 | Radiation-resistant polypropylene resin composition | Tadashi Asanuma, Shigeru Kimura, Tetsunosuke Shiomura | 1996-08-20 |
| 5548008 | Radiation-resistant polypropylene resin composition | Tadashi Asanuma, Shigeru Kimura, Tetsunosuke Shiomura | 1996-08-20 |
| 5478646 | Polypropylene fiber and a preparation process thereof | Tadashi Asanuma, Tetsunosuke Shiomura, Shigeru Kimura, Yoichi Kawai, Keigo Suehiro +1 more | 1995-12-26 |
| 5428127 | Preparation process of syndiotactic polyproplene | Tadashi Asanuma, Tetsunosuke Shiomura, Tateyo Sasaki, Norihide Inoue, Osamu Uchida +1 more | 1995-06-27 |
| 5340848 | Radiation-resistant polypropylene resin composition | Tadashi Asanuma, Shigeru Kimura, Tetsunosuke Shiomura | 1994-08-23 |
| 5314956 | Polypropylene resin compositions of high syndiotacticity and preparation process thereof | Tadashi Asanuma, Tetsunosuke Shiomura, Tutomu Iwatani, Katsumi Takeuchi | 1994-05-24 |
| 5278216 | Syndiotactic polypropylene resin composition | Tadashi Asanuma, Tetsunosuke Shiomura, Tateyo Sasaki, Takeo Inoue | 1994-01-11 |
| 5266641 | Butene-1 copolymers and resin compositions containing the same | Tadashi Asanuma, Tetsunosuke Shiomura, Tateyo Sasaki, Tutomu Iwatani, Kouji Kitabayashi | 1993-11-30 |
| 5232992 | Molded articles of syndiotactic polypropylene and method for preparing same | Tadashi Asanuma, Tetsunosuke Shiomura, Tateyo Sasaki, Takeo Inoue | 1993-08-03 |
| 5212247 | Polypropylene resin compositions of high syndiotacticity and preparation process thereof | Tadashi Asanuma, Tetsunosuke Shiomura, Tutomu Iwatani, Katsumi Takeuchi | 1993-05-18 |
| 5206324 | Butene-1 copolymer and resin composition containing the same | Tadashi Asanuma, Tetsunosuke Shiomura, Tateyo Sasaki, Tutomu Iwatani, Kouji Kitabayashi | 1993-04-27 |
| 5187250 | Poly-.alpha.-olefins | Tadashi Asanuma, Tetsunosuke Shiomura, Yukari Nishimori | 1993-02-16 |
| 5175208 | Method for preparing block copolymers of propylene | Tadashi Asanuma, Mitsuru Ito, Tutomu Iwatani, Kaoru Kawanishi, Shigeru Kimura +1 more | 1992-12-29 |
| 5169924 | Copolymer of propylene and butene-1 | Tadashi Asanuma, Tetsunosuke Shiomura, Tateyo Sasaki, Tutomu Iwatani | 1992-12-08 |
| 5157092 | Polymer of 4-methylpentene-1 | Tadashi Asanuma, Tetsunosuke Shiomura, Yukari Tamai, Tateyo Sasaki, Tutomu Iwatani | 1992-10-20 |
| 5098967 | Method of controlling the molecular weight of polypropylene | Tadashi Asanuma, Ichiro Fujio | 1992-03-24 |
| 4772661 | Process for the production of block copolymer of propylene | Tadashi Asanuma, Mitsuru Ito, Kaneo Ito, Shigeru Kimura, Ichiro Fujio | 1988-09-20 |
| 4751265 | Production of propylene block copolymer | Tadashi Asanuma, Ichiro Fujio, Tetsunosuke Shiomura | 1988-06-14 |
| 4725338 | Purification process of polymerization solvent | Tadashi Asanuma, Tatuo Ohoka, Minoru Hino | 1988-02-16 |
| 4632976 | Process for the continuous discharge of a slurry | Tadashi Asanuma, Tatuo Ohoka | 1986-12-30 |
| 4468257 | Washing and removal method of high molecular substances | Masahiro Kaneko, Tadashi Asanuma, Ichiro Fujio, Tetsunosuke Shiomura | 1984-08-28 |
| 4409378 | Process for polymerization of .alpha.-olefins and catalysts therefor | Tadashi Asanuma, Tetsunosuke Shiomura | 1983-10-11 |