Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6255425 | Syndiotactic polypropylene copolymer and extruded polypropylene articles | Tadashi Asanuma, Nobutaka Uchikawa, Tateyo Sasaki, Osamu Uchida, Tutomu Iwatani +2 more | 2001-07-03 |
| 5677409 | Syndiotactic polypropylene wax, production process thereof, and heating roll fixing-type toner composition making use of the wax | Norihide Inoue, Masahiro Kouno, Yoshiho Sonobe, Kazumi Mizutani, Nobuhiro Hirayama | 1997-10-14 |
| 5658999 | Syndiotactic polypropylene wax, production process thereof, and heating roll fixing-type toner composition making use of the wax | Norihide Inoue, Masahiro Kouno, Yoshiho Sonobe, Kazumi Mizutani, Nobuhiro Hirayama | 1997-08-19 |
| 5652315 | Method for preparing ethylene copolymer | Norihide Inoue, Masahiro Kouno | 1997-07-29 |
| 5624621 | Process of making polyprophylene fibers | Tadashi Asanuma, Shigeru Kimura, Nobutaka Uchikawa, Yoichi Kawai, Keigo Suehiro +1 more | 1997-04-29 |
| 5548007 | Radiation-resistant polypropylene resin composition | Tadashi Asanuma, Shigeru Kimura, Nobutaka Uchikawa | 1996-08-20 |
| 5548008 | Radiation-resistant polypropylene resin composition | Tadashi Asanuma, Shigeru Kimura, Nobutaka Uchikawa | 1996-08-20 |
| 5478646 | Polypropylene fiber and a preparation process thereof | Tadashi Asanuma, Shigeru Kimura, Nobutaka Uchikawa, Yoichi Kawai, Keigo Suehiro +1 more | 1995-12-26 |
| 5439994 | Method of polymerizing an olefin using a novel transition metal compound | Norihide Inoue, Masahiro Kouno, Yoshiho Sonobe, Kazumi Mizutani | 1995-08-08 |
| 5428121 | Method for preparing syndiotactic polypropylene | Tadashi Asanuma, Tsutomu Iwatani, Ryuichi Sugimoto, Norihide Inoue, Masahiro Kouno | 1995-06-27 |
| 5428127 | Preparation process of syndiotactic polyproplene | Tadashi Asanuma, Nobutaka Uchikawa, Tateyo Sasaki, Norihide Inoue, Osamu Uchida +1 more | 1995-06-27 |
| 5359102 | Transition metal compound having two transition metal atoms in one molecule and method for polymerizing olefin by using the compound | Norihide Inoue, Masahiro Kouno, Yoshiho Sonobe, Kazumi Mizutani | 1994-10-25 |
| 5340848 | Radiation-resistant polypropylene resin composition | Tadashi Asanuma, Shigeru Kimura, Nobutaka Uchikawa | 1994-08-23 |
| 5314956 | Polypropylene resin compositions of high syndiotacticity and preparation process thereof | Tadashi Asanuma, Nobutaka Uchikawa, Tutomu Iwatani, Katsumi Takeuchi | 1994-05-24 |
| 5278216 | Syndiotactic polypropylene resin composition | Tadashi Asanuma, Nobutaka Uchikawa, Tateyo Sasaki, Takeo Inoue | 1994-01-11 |
| 5266641 | Butene-1 copolymers and resin compositions containing the same | Tadashi Asanuma, Tateyo Sasaki, Tutomu Iwatani, Nobutaka Uchikawa, Kouji Kitabayashi | 1993-11-30 |
| 5232992 | Molded articles of syndiotactic polypropylene and method for preparing same | Tadashi Asanuma, Nobutaka Uchikawa, Tateyo Sasaki, Takeo Inoue | 1993-08-03 |
| 5219968 | Propylene copolymer | Tadashi Asanuma, Masashiro Kouno, Norihide Inoue, Satoshi Fukushima, Yoshiho Sonobe +3 more | 1993-06-15 |
| 5212247 | Polypropylene resin compositions of high syndiotacticity and preparation process thereof | Tadashi Asanuma, Nobutaka Uchikawa, Tutomu Iwatani, Katsumi Takeuchi | 1993-05-18 |
| 5206324 | Butene-1 copolymer and resin composition containing the same | Tadashi Asanuma, Tateyo Sasaki, Tutomu Iwatani, Nobutaka Uchikawa, Kouji Kitabayashi | 1993-04-27 |
| 5187250 | Poly-.alpha.-olefins | Tadashi Asanuma, Yukari Nishimori, Nobutaka Uchikawa | 1993-02-16 |
| 5169924 | Copolymer of propylene and butene-1 | Tadashi Asanuma, Tateyo Sasaki, Tutomu Iwatani, Nobutaka Uchikawa | 1992-12-08 |
| 5157092 | Polymer of 4-methylpentene-1 | Tadashi Asanuma, Nobutaka Uchikawa, Yukari Tamai, Tateyo Sasaki, Tutomu Iwatani | 1992-10-20 |
| 4937339 | Process for preparing isocyanurate ring-containing materials | Yoshiho Sonobe, Akihiro Yamaguchi, Ryuzi Haseyama | 1990-06-26 |
| 4865795 | Process for producing thermosetting resins | Yoshiho Sonobe, Akihiro Yamaguchi | 1989-09-12 |