Issued Patents All Time
Showing 26–50 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6689917 | Process for the preparation of perfluoroalkanones | Kouzou Noda | 2004-02-10 |
| 6664430 | Catalysts for the preparation of fluorinated alcohols and process for the preparation of fluorinated alcohols | Jun Miki | 2003-12-16 |
| 6610896 | Process for production of perfluoroalkadienes | Jun Miki, Hitoshi Yoshimi | 2003-08-26 |
| 6380148 | Azeotropic mixture of perfluoroalkyl iodide and hydrogen fluoride, and method for isolating and purifying perfluoroalkyl iodides | Eiji Seki, Tatsuya Otsuka, Tatsuya Hirata, Yoshinori Tanaka | 2002-04-30 |
| 6291728 | Process for producing 1,1,1,3,3-pentafluoropropane | Tatsuo Nakada, Akinori Yamamoto | 2001-09-18 |
| 6271189 | Azeotropic mixture of perfluoroalkyl iodide and hydrogen fluoride, and method for isolating and purifying perfluoroalkyl iodides | Eiji Seki, Tatsuya Otsuka, Tatsuya Hirata, Yoshinori Tanaka | 2001-08-07 |
| 6255524 | Process for producing acid chlorides having polyfluoroalkyl groups | Shoji Takagi, Shinichi Matsumura, Yoshinori Tanaka | 2001-07-03 |
| 6242410 | Azeotropic composition of hexafluoropropylene dimer and acetonitrile and separation process using the same | Akikazu Tabuchi | 2001-06-05 |
| 6239319 | Processes for the preparation of perfluoroalkanes and iodine pentafluoride | Tatsuya Otsuka, Tatsuya Hirata, Kyohiro Kan | 2001-05-29 |
| 6191326 | Process for preparing 1,1,1,2,3,3,3-heptafluoropropane | Tatsuya Otsuka | 2001-02-20 |
| 6060628 | Manufacturing method for 1,1,1,3,3-pentafluoropropane | Noriaki Shibata, Akinori Yamamoto | 2000-05-09 |
| 6018084 | Process for producing 1,1,1,3,3-pentafluoropropane | Tatsuo Nakada, Akinori Yamamoto | 2000-01-25 |
| 5965779 | Fluorooxetane compound and process for its preparation | Tatsuya Otsuka | 1999-10-12 |
| 5945562 | Process of preparing perfluoroalkylcarboxylic acid | Yasumichi Chiba | 1999-08-31 |
| 5919993 | Method for preparing halogenated butene and butane | Tatsuo Nakada, Satoshi Koyama | 1999-07-06 |
| 5821392 | Manufacturing method for 1,1,1,3,3-pentafluoropropane | Akinori Yamamoto, Noriaki Shibata | 1998-10-13 |
| 5789632 | Process of purifying 1,1,1,3,3,-pentafluoro-2,3 dichloropropane | Tatsuo Nakada | 1998-08-04 |
| 5773404 | Azeotropic composition | Satoshi Ide, Akinori Yamamoto | 1998-06-30 |
| 5763703 | Manufacturing method for hexafluorocylobutene and hexafluorocyclobutane | Tatsuo Nakada, Akinori Yamamoto | 1998-06-09 |
| 5763705 | Method of producing 1,1,1,3,3-pentafluoropropane, a method of producing 1,1,1,3,3-pentafluoro-2-halogeno-3-chloropropane, and a method of producing 1,1,1,2,3,3-hexachloropropene | Seiji Takubo, Tatsuo Nakada | 1998-06-09 |
| 5728902 | Method for manufacturing 1,1,1,3,3-pentafluoropropene | Akinori Yamamoto, Noriaki Shibata | 1998-03-17 |
| 5714655 | Process of manufacturing 1,1,1,3,3-pentafluoropropane, process of manufacturing 2,2,3-trichloro 1,1,1,3,3-pentafluoropropane and process of manufacturing 2,3,3-trichloro-1,1,1-trifluoropropene | Akinori Yamamoto, Eiji Seki, Seiji Takubo, Tatsuo Nakada | 1998-02-03 |
| 5714654 | Method of Producing 1,1,1,3,3-pentafluoropropane and/or 1,1,3,3,3-pentafluoropropene | Akinori Yamamoto, Eiji Seki, Tatsuo Nakada | 1998-02-03 |
| 5696306 | Decomposition inhibitor for hydrogen- and fluorine-containing halogenated hydrocarbons and method of inhibiting decomposition using same | Satoshi Ide, Tatsumi Tsuchiya, Naoki Maekawa, Tsuyoshi Inaba | 1997-12-09 |
| 5689019 | Manufacturing method for 1,1,1,2,3,3,3-heptafluoropropane | Noriaki Shibata | 1997-11-18 |