Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7257559 | Material sales system | — | 2007-08-14 |
| RE38050 | Polycarbonate comprising different kinds of bonding units and process for the preparation thereof | Hiroshi Hachiya, Miyuki Kazunori | 2003-03-25 |
| 6429276 | Process and polymerizer for producing aromatic polycarbonate | Shinsuke Fukuoka | 2002-08-06 |
| 6320015 | Process for producing aromatic polycarbonate | Shinsuke Fukuoka, Muneaki Aminaka, Kazumi Hasegawa | 2001-11-20 |
| 6277945 | Method for producing an aromatic polycarbonate | Hiroshi Hachiya | 2001-08-21 |
| 6265526 | System and process for producing polycondensation polymer | Muneaki Aminaka | 2001-07-24 |
| 6262210 | Process for producing aromatic carbonates | Masahiro Tojo, Kazuhiro Oonishi | 2001-07-17 |
| 6107440 | Aromatic polycarbonate composition | Hiroshi Hachiya | 2000-08-22 |
| 6037437 | Method for producing an aromatic polycarbonate | Kazumi Hasegawa | 2000-03-14 |
| 5952449 | Method for producing an aromatic polycarbonate | Muneaki Aminaka, Kazumi Hasegawa | 1999-09-14 |
| 5932683 | Polycarbonate comprising different kinds of bonding units and process for the preparation thereof | Hiroshi Hachiya, Miyuki Kazunori | 1999-08-03 |
| 5912289 | Aromatic polycarbonate composition having improved thermal stability, and method for producing the same | Hiroshi Hachiya | 1999-06-15 |
| 5912318 | Method for producing an aromatic polycarbonate | Kazumi Hasegawa, Muneaki Aminaka | 1999-06-15 |
| 5872275 | Process for the producing of aromatic carbonate | Masahiro Tojo, Shinsuke Fukuoka | 1999-02-16 |
| 5852156 | Polycarbonate composition | Hiroshi Hachiya, Tetsuo Hamada | 1998-12-22 |
| 5840826 | Process for preparing aromatic polycarbonate | Shinsuke Fukuoka, Mamoru Kawamura | 1998-11-24 |
| 5762851 | Method of producing polycarbonate pellets | Hiroshi Hachiya | 1998-06-09 |
| 5747609 | Method for producing an aromatic polycarbonate having improved melt stability | Shinsuke Fukuoka | 1998-05-05 |
| 5719254 | Discoloration-insusceptible polycarbonate composition | Hiroshi Hachiya | 1998-02-17 |
| 5596067 | Free fall polymerization process for the production of polycarbonates | Yoshifumi Kawakami, Hiroshige Okamoto | 1997-01-21 |
| 5589564 | Wire-wetting fall polymonization process for the production of polycarbonates | Yoshifumi Kawakami, Hiroshige Okamoto | 1996-12-31 |
| 5214073 | Porous, crystallized, aromatic polycarbonate prepolymer, a porous, crystallized aromatic polycarbonate, and production methods | Isaburo Fukawa, Shinsuke Fukuoka, Yoro Sasaki | 1993-05-25 |
| 5204377 | Porous, crystallized, aromatic polycarbonate prepolymer, a porous, crystallized aromatic polycarbonate, and production methods | Isaburo Fukawa, Shinsuke Fukuoka, Yoro Sasaki | 1993-04-20 |
| 5070173 | Thermoplastic polyurethane | Masahisa Yokota, Atsushi Shimizu, Kazunori Yamataka, Tadanori Nomura | 1991-12-03 |
| 4855377 | Novel copolycarbonate | Masahisa Yokota, Atsushi Shimizu, Kazunori Yamataka, Tadanori Nonura | 1989-08-08 |