Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5268451 | Process for the preparation of cross-linked polyarylene sulfide | Toshio Hosokawa, Yoshinobu Itoh, Shinji Yamamoto, Kazuo Kusida, Takayuki Katto | 1993-12-07 |
| 5200500 | Process for the preparation of cross-linked polyarylene sulfide | Toshio Hosokawa, Yoshinobu Itoh, Shinji Yamamoto, Kazuo Kusida, Takayuki Katto | 1993-04-06 |
| 5179194 | Process for production of polyarylenesulfides | Yukichika Kawakami, Takayuki Katto | 1993-01-12 |
| 5134206 | Polymer alloy of polyarylene thioether and a process for producing the same | Ken Kashiwadate, Shunzo Endo, Toshio Hosokawa, Takayuki Katto, Toshiya Mizuno +1 more | 1992-07-28 |
| 5085819 | Heat-resistant resin compositions, and heat-resistant molded or formed articles and production process thereof | Yoshikatsu Satake, Takashi Kaneko, Yutaka Kobayashi, Yukio Ichikawa, Makoto Fukuda +4 more | 1992-02-04 |
| 5021523 | Polymer alloy of polyarylene thioether and a process for producing the same | Ken Kashiwadate, Shunzo Endo, Toshio Hosokawa, Takayuki Katto, Toshiya Mizuno +1 more | 1991-06-04 |
| 4985512 | High-lubricity film | Ken Kashiwadate, Toshio Hosokawa, Shunzo Endo, Takayuki Katto, Toshiya Mizuno +1 more | 1991-01-15 |
| 4956499 | Polyarylene thioether composition for molding | Makoto Fukuda, Sirou Suzuki, Toshio Hosokawa, Yukichika Kawakami, Zenya Shiiki | 1990-09-11 |
| 4931516 | Process for producing polyarylene sulfide in titanium vessel with addition of water | Takao Iwasaki, Takayuki Katto, Zenya Shiiki | 1990-06-05 |
| 4897238 | Stretched poly(arylene thioether-ketone) films and production process thereof | Toshitaka Kouyama, Takayuki Katto, Zenya Shiiki, Yoshikatsu Satake, Toshiya Mizuno | 1990-01-30 |
| 4895912 | Stretched poly(arylene thioether-ketone) films and production process thereof | Yoshikatsu Satake, Toshitaka Kouyama, Takayuki Katto, Zenya Shiiki, Toshiya Mizuno | 1990-01-23 |
| 4895691 | Poly(arylene thioether-ketone) fibers and production process thereof | Yoshikatsu Satake, Hiroyuki Endo, Toshitaka Kouyama, Takayuki Katto, Zenya Shiiki | 1990-01-23 |
| 4895892 | Melt-stable poly(arylene thioether-ketone) compositions | Yoshikatsu Satake, Takashi Kaneko, Yutaka Kobayashi, Toshitaka Kouyama, Takayuki Katto +1 more | 1990-01-23 |
| 4895893 | Heat-resistant resin compositions, and heat-resistant molded or formed articles and production process thereof | Yoshikatsu Satake, Takashi Kaneko, Yutaka Kobayashi, Yukio Ichikawa, Makoto Fukuda +4 more | 1990-01-23 |
| 4895924 | Poly(arylene thioether-ketone) fibers and production process thereof | Yoshikatsu Satake, Hiroyuki Endo, Toshitaka Kouyama, Takayuki Katto, Zenya Shiiki | 1990-01-23 |
| 4895925 | Melt-stable poly(arylene thioether-ketone) and production process thereof | Yoshikatsu Satake, Takashi Kaneko, Yutaka Kobayashi, Takayuki Katto, Zenya Shiiki | 1990-01-23 |
| 4886871 | Melt-stable poly(arylene thioetherketone) and production process thereof | Yoshikatsu Satake, Takashi Kaneko, Yutaka Kobayashi, Takayuki Katto, Zenya Shiiki | 1989-12-12 |
| 4873283 | Molded or formed poly(arylene thioether-ketone) articles | Yoshikatsu Satake, Toshitaka Kouyama, Takayuki Katto, Zenya Shiiki | 1989-10-10 |
| 4863669 | Process for forming polyarylenethioether stretched blow-molded vessel | Toshitaka Kouyama, Takayuki Katto, Takao Iwasaki, Zenya Shiiki | 1989-09-05 |
| 4826906 | Poly(arylene thioether-ketone) compositions improved in both melt stability and crystallinity | Yoshikatsu Satake, Ken Kashiwadate, Toshitaka Kouyama, Takayuki Katto, Zenya Shiiki | 1989-05-02 |
| 4816335 | High-quality polyarylene-thioether fibers and method for production thereof | Toshitaka Kouyama, Harunobu Egawa, Zenya Shiiki | 1989-03-28 |
| 4814430 | Process for producing poly(arylene sulfide) of reduced alkali metal content | Takao Iwasaki, Takayuki Katto, Zenya Shiiki | 1989-03-21 |
| 4812539 | Polyarylene sulfide preparation in titanium reaction vessel with two distinct temperature ranges | Takao Iwasaki, Takayuki Katto, Zenya Shiiki | 1989-03-14 |
| 4801416 | Transparent and little colored polyarylenethioether primary melt molding, preparation and utilization thereof | Akio Kobayashi, Toshitaka Kouyama, Takayuki Katto, Zenya Shiiki | 1989-01-31 |
| 4795671 | Para-phenylene sulfide block copolymers, process for the production of the same and use thereof | Zenya Shiiki, Takayuki Katto, Takao Iwasaki, Toshitaka Kouyama | 1989-01-03 |