Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9908974 | Polyarylene sulfide production method and polyarylene sulfide production apparatus | Masanori Kobayashi, Tomoyoshi Koizumi, Hirohito Kawama | 2018-03-06 |
| 9068047 | Process for producing poly(arylene sulfide), and poly(arylene sulfide) comprising contacting a wash liquid with an alkaline compound | Yoshihiro Ichinose, Masanori Kobayashi, Tomoyoshi Koizumi | 2015-06-30 |
| 8981041 | Production process of poly(arylene sulfide) and production apparatus thereof | Takayuki Kimura, Tomoyoshi Koizumi | 2015-03-17 |
| 8211997 | Process for producing polyarylene sulfide | Katsumi Horikoshi, Masanori Kobayashi | 2012-07-03 |
| 8058320 | Thermally foamable microsphere, production method thereof, use thereof, composition containing the same, and article | Tetsuo Ejiri, Shunzo Endo | 2011-11-15 |
| 7767783 | Poly (arylene sulfide) and production process thereof | Hirohito Kawama, Michihisa Miyahara, Koichi Suzuki, Hiroyuki Sato | 2010-08-03 |
| 7569656 | Process for production of polyarylene sulfide | Masaru Kagoshima | 2009-08-04 |
| 7504476 | Poly(arylene sulfide) and production process thereof | Hirohito Kawama, Michihisa Miyahara, Koichi Suzuki, Hiroyuki Sato | 2009-03-17 |
| 7220817 | Process for producing polyarylene sulfide | Masaru Kagoshima | 2007-05-22 |
| 7094867 | Method of continuously cleansing polyarylene sulfide | Michihisa Miyahara, Norio Saitou | 2006-08-22 |