Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9321884 | Process for producing polycondensation polymer, and polymerizer | Hiroshi Hachiya, Kazuharu Yasuda | 2016-04-26 |
| 8293162 | Method and apparatus for producing molded product | Hiroshi Yokoyama, Hiroshige Okamoto, Kouji Takeuchi, Hironobu Yamauchi, Ken Someya | 2012-10-23 |
| 8202591 | Polyester resin, molded object thereof, and processes for producing these | Hiroshi Yokoyama, Hiroshige Okamoto | 2012-06-19 |
| 8013107 | Process for producing polyalkylene terephthalate, process for producing polyalkylene terephthalate molding and polyalkylene terephthalate molding | Hiroshi Yokoyama, Katsuhiro Fujimoto, Junichi Sugimoto, Tsutomu Katsumata | 2011-09-06 |
| 7807728 | Method for recycling recovered polycondensation polymer | Hiroshi Yokoyama, Ken Someya | 2010-10-05 |
| 6320015 | Process for producing aromatic polycarbonate | Kyosuke Komiya, Shinsuke Fukuoka, Kazumi Hasegawa | 2001-11-20 |
| 6265526 | System and process for producing polycondensation polymer | Kyosuke Komiya | 2001-07-24 |
| 5952449 | Method for producing an aromatic polycarbonate | Kyosuke Komiya, Kazumi Hasegawa | 1999-09-14 |
| 5912318 | Method for producing an aromatic polycarbonate | Kazumi Hasegawa, Kyosuke Komiya | 1999-06-15 |
| 4399272 | Process for producing polyacetal copolymers | Hisaya Sakurai, Minoru Hamada, Kazuhiko Matsuzaki | 1983-08-16 |