Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5424379 | Process for selective production of cis-1,4-polybutadiene | Tatsuya Miyatake, Koozi Mizunuma, Yoshio Yagi, Kazuhiro Watanabe | 1995-06-13 |
| 5349034 | Process for selective production of trans-1,4-polybutadiene | Tatsuya Miyatake, Koozi Mizunuma, Yoshio Yagi, Kazuhiro Watanabe | 1994-09-20 |
| 5280000 | Catalyst for olefin polymerization and process for producing olefin polymer using the catalyst | Tatsuya Miyatake, Yoshio Kawai, Akinobu Shiga, Kooji Mizunuma | 1994-01-18 |
| 5147942 | Thermoplastic resin composition | Hiroomi Abe, Taichi Nishio, Yasurou Suzuki, Takeshi Sanada | 1992-09-15 |
| 5141994 | Crystalline polypropylene and crystalline polypropylene composition | Hajime Sadatoshi, Jiro Sakai, Kazuki Wakamatsu, Kazuhiro Chikaishi, Toshiro Kojima +2 more | 1992-08-25 |
| 5043408 | Ethylene-aromatic vinyl compound alternating copolymer and process for the production thereof | Tatsuya Miyatake, Koozi Mizunuma, Yoshio Yagi | 1991-08-27 |
| 5039748 | High-strength polypropylene fiber | Kizuku Wakatsuki, Noboru Yamaguchi, Kazuki Wakamatsu, Tadayuki Ohmae | 1991-08-13 |
| 4927872 | Polypropylene film | Seiichiro Ima | 1990-05-22 |
| 4839234 | Polypropylene film | Seiichiro Ima | 1989-06-13 |
| 4820775 | Alpha-olefin block copolymer particles and process for the production thereof | Akinobu Shiga, Hajime Sadatoshi, Hiroyuki Kora, Toshio Sasaki, Junpei Kojima +2 more | 1989-04-11 |
| 4786562 | Polypropylene multi-layer film | Tadatoshi Ogawa, Seiichiro Ima, Teruaki Yoshida | 1988-11-22 |
| 4769284 | Polypropylene multi-layer film | Seiichiro Ima, Tatsuya Miyatake, Hiroyuki Harada | 1988-09-06 |
| 4748207 | Polypropylene sheet | Yoshiharu Fukui, Kizuku Wakatsuki, Hideaki Nishio | 1988-05-31 |
| RE32542 | Molded products of polypropylene | Akinobu Shiga, Kiyoshi Matsuyama, Yukio Naito, Seiichiro Ima | 1987-11-10 |
| 4696979 | Process for producing propylene copolymer | Akinobu Shiga, Junpei Kozima, Kizuku Wakatsuki | 1987-09-29 |
| 4663394 | Crystalline polybutene-1 compositions | Kizuku Wakatsuki | 1987-05-05 |
| 4603174 | Stretched polypropylene film | Tadayuki Okada, Yoshiharu Fukui, Kizuku Wakatsuki, Seiichiro Ima, Junichi Kimura | 1986-07-29 |
| 4584239 | Stretched multilayer polypropylene film | Yoshiharu Fukui, Kizuku Wakatsuki, Seiichiro Ima, Junichi Kimura | 1986-04-22 |
| 4551501 | Crystalline propylene polymer composition | Akinobu Shiga, Junpei Kojima, Kizuku Wakatsuki | 1985-11-05 |
| 4461881 | Process for the production of purified propylene homopolymers or copolymers | Akinobu Shiga, Kiyoshi Matsuyama, Yukio Naito, Takatoshi Suzuki | 1984-07-24 |
| 4414373 | Propylene-ethylene copolymer having improved stretchability | Akinobu Shiga, Kiyoshi Matsuyama, Yukio Naito, Seiichiro Ima, Katsuyoshi Yamashita | 1983-11-08 |
| 4382065 | Fluidized bed apparatus and method of using | Akinobu Shiga, Koji Yamada, Hajime Sadatoshi | 1983-05-03 |
| 4367322 | Process for producing propylene copolymer | Akinobu Shiga, Kiyoshi Matsuyama, Yukio Naito, Akira Nunose, Masaharu Nishioka | 1983-01-04 |
| 4355144 | Process for producing a propylene-ethylene copolymer having improved stretchability | Akinobu Shiga, Kiyoshi Matsuyama, Yukio Naito, Seiichiro Ima, Katsuyoshi Yamashita | 1982-10-19 |
| 4337326 | Process for producing propylene-ethylene block copolymers | Akinobu Shiga, Hajime Sadatoshi, Kazuki Wakamatsu, Hiroshi Yoshioka | 1982-06-29 |