Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10351507 | Carbonate ester purification method, carbonate ester solution production method, and carbonate ester purification apparatus | Yuya Fukui, Yohei Shimasaki, Koji Okano, Koji Takebayashi, Naoto Nakao | 2019-07-16 |
| 9656942 | Method of manufacturing diethyl carbonate | Tatsuya Naitou, Kazuki Yamamoto, Katsuyoshi Kudou, Akira Hino, Tadaaki Kaneko +2 more | 2017-05-23 |
| 9174918 | Process for preparing diaryl oxalate | Shuji Tanaka | 2015-11-03 |
| 8304585 | Production process of 1,6-hexanediol | Tomoyuki Ito, Yoshiki Kawamura, Toshiyuki Matsushita | 2012-11-06 |
| 7714160 | Process for producing alkyl nitrite | Ryoji Sugise, Shuji Tanaka, Kazuaki Mii | 2010-05-11 |
| 6844464 | Process for producing alkyl nitrite | Ryoji Sugise, Shuji Tanaka, Kazuaki Mii | 2005-01-18 |
| 6472498 | Diaryl carbonate product and production of polycarbonate | Ryoji Sugise, Shuji Tanaka, Kohichi Kashiwagi, Takashi Doi, Masayuki Nishio +3 more | 2002-10-29 |
| 5892089 | Process for preparing diaryl carbonate | Katsumasa Harada, Ryoji Sugise, Koichi Kashiwagi, Yoichi Imbe, Takashi Doi +2 more | 1999-04-06 |
| 5731453 | Process for producing a diaryl carbonate | Keigo Nishihira, Shuji Tanaka, Yuki Nishida, Satoru Fujitsu, Katsumasa Harada +3 more | 1998-03-24 |
| 5705677 | Diphenyl oxalate-phenol adduct, process for producing the adduct and method of producing diphenyl oxalate from the adduct | Keigo Nishihira, Shuji Tanaka, Yuki Nishida, Satoru Fujitsu | 1998-01-06 |