Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7183448 | Azeotropic composition, comprising 1, 1, 1, 3,3-pentafluoropropane and 1, 1, 1-trifluoro-3-chloro-2-propene, method of separation and purification of the same, and process for producing 1, 1, 1,3,3-pentafloropropane and 1, 1, 1-trifluoro-3-chloro-2-propene | Masayoshi Imoto, Takashi Shibanuma | 2007-02-27 |
| 7094934 | Production process of hydrofluorocarbons | Noriaki Shibata, Takashi Shibanuma | 2006-08-22 |
| 6863780 | Process of separating/purifying pentafluoropropane | Noriaki Shibata, Takashi Shibanuma | 2005-03-08 |
| 6846963 | Process for producing 1,1,1,3,3-pentafluoropropane | Seiji Takubo, Toshikazu Yoshimura, Takashi Shibanuma | 2005-01-25 |
| 6521802 | Process for preparing fluorine-containing halogenated hydrocarbon compound | Seiji Takubo, Noriaki Shibata, Takashi Shibanuma | 2003-02-18 |
| 6472573 | Process for producing 1,1,1,3,3-pentafluoropropane | Akinori Yamamoto, Noriaki Shibata, Takashi Shibanuma | 2002-10-29 |
| 6403847 | Process for producing 1,1,1,3,3-pentafluoro-propane and/or 1-chloro-3,3,3-trifluoropropene | Takashi Shibanuma, Noriaki Shibata | 2002-06-11 |
| 6328907 | Azeotrope comprising pentafluoropropane and hydrogen fluoride and method for separating and purifying pentafluoropropane | Noriaki Shibata, Takashi Shibanuma | 2001-12-11 |
| 6329560 | Method for producing hydrogen-containing fluorinated hydrocarbon | Noriaki Shibata, Takashi Shibanuma | 2001-12-11 |
| 6316682 | Process for preparing 1,1,1,3,3-pentafluoropropane | Takashi Shibanuma, Yamamoto Akinori | 2001-11-13 |
| 6291728 | Process for producing 1,1,1,3,3-pentafluoropropane | Hirokazu Aoyama, Akinori Yamamoto | 2001-09-18 |
| 6191328 | Method for 1, 1, 1, 3, 3-pentafluoropropane | Keisuke Kitano, Takashi Shibanuma | 2001-02-20 |
| 6018084 | Process for producing 1,1,1,3,3-pentafluoropropane | Hirokazu Aoyama, Akinori Yamamoto | 2000-01-25 |
| 5919993 | Method for preparing halogenated butene and butane | Hirokazu Aoyama, Satoshi Koyama | 1999-07-06 |
| 5789632 | Process of purifying 1,1,1,3,3,-pentafluoro-2,3 dichloropropane | Hirokazu Aoyama | 1998-08-04 |
| 5763703 | Manufacturing method for hexafluorocylobutene and hexafluorocyclobutane | Hirokazu Aoyama, 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, Hirokazu Aoyama | 1998-06-09 |
| 5714654 | Method of Producing 1,1,1,3,3-pentafluoropropane and/or 1,1,3,3,3-pentafluoropropene | Akinori Yamamoto, Eiji Seki, Hirokazu Aoyama | 1998-02-03 |
| 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, Hirokazu Aoyama, Seiji Takubo | 1998-02-03 |
| 5688379 | Process for preparing perfluoroalkyl bromides | Yasuhisa Furutaka, Kazuhiro Shimokawa, Yorisato Hisanaga, Souichi Ueda | 1997-11-18 |
| 5659093 | 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, Hirokazu Aoyama | 1997-08-19 |
| 5608128 | Production methods of 1,1,1,4,4,4-hexsfluoro-2-butene compounds and 1,1,1,4,4,4,-hexafluorobutane | Hirokazu Aoyama, Seiji Takubo | 1997-03-04 |
| 5532418 | Method of producing 1,1,1,2,3,3,-hexafluoropropane and tetrafluorochloropropene | Hirokazu Aoyama | 1996-07-02 |
| 5364991 | Preparation of 1,1,1,4,4,4-hexafluorobutane | Eiji Seki, Hirokazu Aoyama, Satoshi Koyama | 1994-11-15 |
| 5304654 | Fluorine-containing nitroimidazole compounds | Tsutomu Kagiya, Mitsuyuki Abe, Seiichi Nishimoto, Yuta Shibamoto, Kazuhiro Shimokawa +2 more | 1994-04-19 |