Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7714160 | Process for producing alkyl nitrite | Shuji Tanaka, Hirofumi Ii, Kazuaki Mii | 2010-05-11 |
| 6861563 | Process for preparation of cyclododecanone | Shuji Tanaka, Takashi Doi, Masayuki Nishio, Sadao Niida, Tsunao Matsuura | 2005-03-01 |
| 6844464 | Process for producing alkyl nitrite | Shuji Tanaka, Hirofumi Ii, Kazuaki Mii | 2005-01-18 |
| 6518461 | Method of continuously producing a cyclododecanone compound | Shuji Tanaka, Takashi Doi, Masayuki Nishio, Sadao Niida, Tsunao Matsuura | 2003-02-11 |
| 6472498 | Diaryl carbonate product and production of polycarbonate | Shuji Tanaka, Kohichi Kashiwagi, Takashi Doi, Hirofumi Ii, Masayuki Nishio +3 more | 2002-10-29 |
| 6417404 | Process for continuously producing a cyclododecanone compound | Shuji Tanaka, Takashi Doi, Masayuki Nishio, Sadao Niida, Tsunao Matsuura | 2002-07-09 |
| 6388140 | Method and producing cyclododecanone compound | Shuji Tanaka, Kohichi Kashiwagi, Takashi Doi, Masayuki Nishio, Sadao Niida +1 more | 2002-05-14 |
| 6169209 | Preparation of organic phosphonium chloride | Katsumasa Harada, Koichi Kashiwagi, Sadao Niida | 2001-01-02 |
| 6143917 | Process for producing aryl carbamates | Katsumasa Harada, Kohichi Kashiwagi, Tsunao Matsuura | 2000-11-07 |
| 5973184 | Process for preparing a dialkyl carbonate by gas-phase decarbonylation of dialkyl oxalate | Katsumasa Harada, Masayuki Nishio, Toshio Kurafuji, Toshihiro Shimakawa | 1999-10-26 |
| 5922827 | Process for producing a polycarbonate | Keigo Nishihira, Shuji Tanaka, Katsumasa Harada, Akinori Shiotani, Katsutoshi Washio | 1999-07-13 |
| 5892089 | Process for preparing diaryl carbonate | Katsumasa Harada, Koichi Kashiwagi, Yoichi Imbe, Takashi Doi, Keigo Nishihira +2 more | 1999-04-06 |
| 5892091 | Catalyst for decarbonylation reaction | Katsumasa Harada, Yoichi Imbe, Keigo Nishihira, Shuji Tanaka, Satoru Fujitsu +4 more | 1999-04-06 |
| 5834615 | Process for producing diaryl carbonate | Keigo Nishihira, Shuji Tanaka, Katsumasa Harada | 1998-11-10 |
| 5811573 | Process for producing a diaryl carnonate | Keigo Nishihira, Shuji Tanaka, Yuki Nishida, Ii Hirofumi, Satoru Fujitsu +3 more | 1998-09-22 |
| 5792883 | Preparation of diaryl carbonate | Katsumasa Harada, Koichi Kashiwagi, Takashi Doi, Sadao Niida, Toshio Kurafuji | 1998-08-11 |
| 5731453 | Process for producing a diaryl carbonate | Keigo Nishihira, Shuji Tanaka, Yuki Nishida, Hirofumi Ii, Satoru Fujitsu +3 more | 1998-03-24 |
| 5648510 | Process for preparation of diaryl carbonate | Katsumasa Harada, Yoichi Imbe, Keigo Nishihira, Shuji Tanaka, Satoru Fujitsu +2 more | 1997-07-15 |
| 5466858 | Method of producing straight-chain acrylonitrile dimers | Kouichi Kashiwagi, Masashi Shirai, Toshihiro Shimakawa | 1995-11-14 |
| 5332844 | Method of producing straight-chain acrylonitrile dimers | Kouichi Kashiwagi, Masashi Shirai, Toshihiro Shimakawa | 1994-07-26 |
| 5112783 | Conductive copper oxide ceramics and process for producing same | Hiroshi Daimon, Itsuhiro Fujii, Hideo Ihara, Norio Terada, Masatoshi Jo +1 more | 1992-05-12 |
| 4665172 | Process for producing heterocyclic compound having nitromethylene group as the side chain group | Fumio Iwata, Katsumasa Harada | 1987-05-12 |
| 4625025 | Process for producing a 2H-1,3-thiazolidine, 2H-tetrahydro-1,3-thiazine, or 2H-hexahydro-1,3-thiazepine derivative substituted at the 2 position by a nitromethylene group derivative | Fumio Iwata, Katsumasa Harada | 1986-11-25 |
| 4433162 | Method for preparing an ester of nitroacetic acid | Toshikazu Hamamoto | 1984-02-21 |