Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11161816 | Method for producing aromatic nitrile compound and method for producing carbonic acid ester | Hidefumi Harada, Yousuke Shinkai, Hongyu Liu, Takehiko Isobe | 2021-11-02 |
| 11142506 | Diaryl carbonate and method for producing the same, and method for producing an aromatic polycarbonate resin | Hidefumi Harada, Jungo TAGUCHI | 2021-10-12 |
| 11021571 | Manufacturing method for high molecular weight aromatic polycarbonate resin | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2021-06-01 |
| 10927216 | Manufacturing method for high molecular weight aromatic polycarbonate resin | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2021-02-23 |
| 10894860 | High molecular weight aromatic polycarbonate resin manufacturing method | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2021-01-19 |
| 10793524 | Method for producing aromatic nitrile compound and method for producing carbonic acid ester | Hidefumi Harada, Yousuke Shinkai, Hongyu Liu, Takehiko Isobe | 2020-10-06 |
| 10584092 | Method for producing aromatic nitrile compound and method for producing carbonate ester | Yousuke Shinkai, Hongyu Liu, Hidefumi Harada, Keiichi Tomishige, Yoshinao Nakagawa +3 more | 2020-03-10 |
| 10053537 | High-fluidity polycarbonate copolymer, process for production highly polymerized aromatic polycarbonate resin and aromatic polycarbonate compound | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2018-08-21 |
| 9822218 | Process for producing a high molecular-weight aromatic polycarbonate resin | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +3 more | 2017-11-21 |
| 9701788 | Method for producing branched aromatic polycarbonate resin | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2017-07-11 |
| 9546249 | Process for preparing highly polymerized aromatic polycarbonate resin | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +3 more | 2017-01-17 |
| 9499661 | Process for producing highly polymerized aromatic polycarbonate resin | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2016-11-22 |
| 9458290 | Process for preparing highly polymerized aromatic polycarbonate resin | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2016-10-04 |
| 9428608 | Aromatic polycarbonate resin composition | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2016-08-30 |
| 9353216 | High-fluidity polycarbonate copolymer, process for production highly polymerized aromatic polycarbonate resin and aromatic polycarbonate compound | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2016-05-31 |
| 9243106 | Method for continuous production of high molecular weight polycarbonate resin | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2016-01-26 |
| 8969505 | Process for manufacturing branched aromatic polycarbonate resin with desired degree of branching | Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun Hayakawa, Takehiko Isobe +2 more | 2015-03-03 |
| 8674053 | Process for production of highly polymerized aromatic polycarbonate resin | Shu Yoshida, Noriyuki Kato, Hiroki Furuhashi | 2014-03-18 |
| 8026336 | Polycarbonate resin composition and method of producing the same | Noriyuki Kato, Shu Yoshida, Jun Hagiwara, Kazuaki Kaneko, Keiichi Kameyama | 2011-09-27 |
| 6376641 | Aromatic-aliphatic copolycarbonate and process for producing the same | Satoshi Nagai, Osamu Kondo, Kyohei Takakuwa, Takayasu Fujimori | 2002-04-23 |
| 6359103 | Aromatic-aliphatic copolycarbonate and process for producing the same | Satoshi Nagai, Osamu Kondo, Kyohei Takakuwa, Takayasu Fujimori | 2002-03-19 |
| 6271336 | Process for producing aromatic-aliphatic copolycarbonate | Hiromitsu Nagashima, Shu Yoshida, Satoshi Nagai | 2001-08-07 |
| 5910562 | Copolycarbonate resin and resin composition comprising the same | Mitsuo Miura, Osamu Kondo, Takayasu Fujimori | 1999-06-08 |
| 5654380 | Aliphatic polyester carbonate and process for producing the same | Ryozo Kawai, Mitsuo Miura, Kyohei Takakuwa, Takayasu Fujimori, Jiro Suito +1 more | 1997-08-05 |