Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7541416 | Polycarbonate copolymer and process for producing the same | Takayasu Fujimori, Noriyuki Kato | 2009-06-02 |
| 6777528 | Process for producing polycarbonate resin | Takayasu Fujimori, Hiroaki Ohgi | 2004-08-17 |
| 6585807 | Recovery method of ammonia from gaseous mixture | Hiroshi Umino, Nobuyasu Chikamatsu, Hirofumi Ito | 2003-07-01 |
| 6359163 | Process for producing dialkyl carbonate | Yoshihisa Arai, Hidefumi Harada | 2002-03-19 |
| 6169197 | Process for separation between dialkyl carbonate and alkyl carbamate | Takuo Ohshida, Hiroaki Ohgi, Yoshihisa Arai | 2001-01-02 |
| 6031122 | Process for producing dialkyl carbonate | Yoshihisa Arai, Hidefumi Harada, Takuo Ohshida, Hiroaki Ohgi | 2000-02-29 |
| 5980445 | Process for producing diaryl carbonate | Yoshihisa Arai, Hidefumi Harada, Takuo Ohshida, Hiroaki Ohgi | 1999-11-09 |
| 5714627 | Method for preparing aromatic carbonate | Takuo Ohshida, Hiroaki Ohgi, Hidefumi Harada | 1998-02-03 |
| 5587106 | Liquid crystal display devices and liquid crystal substances therefor | Tomoyuki Yui, Yoshihisa Arai, Yoshihiro Gocho | 1996-12-24 |
| 5380907 | Method for preparing aromatic carbonate | Katsushige Hayashi, Katsuhiro Iura, Takao Kawaki | 1995-01-10 |
| 5374375 | Liquid crystal compound and liquid crystal display device | Tomoyuki Yui, Masahiro Johno, Toshio Watanabe, Yoshihisa Arai | 1994-12-20 |
| 5364560 | Liquid crystal compound and liquid crystal display device | Tomoyuki Yui, Masahiro Johno, Yoshihisa Arai, Hiroshi Mineta | 1994-11-15 |
| 5021197 | Process for production of sulfonium compounds | Mutsuhiko Takeda, Yasumasa Norisue, Isao Hagiwara, Fumiya Zaima | 1991-06-04 |
| 4836859 | Method for treating contact lenses | Akihiko Konishi, Masanori Shimuta | 1989-06-06 |
| 4686131 | Silylated polyphenylene ether membrane for gas separation | Akitoshi Sugio, Masao Okabe, Yoshihiko Sekine | 1987-08-11 |