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Patent applications and USPTO patent grants for Ohsaka; Yohnosuke.The latest application filed is for "fluorine-containing aromatic compound, process for preparing the same and use thereof".
Patent | Date |
---|---|
Fluorine-containing aromatic compound, process for preparing the same and use thereof Grant 4,946,935 - Ohsaka , et al. August 7, 1 | 1990-08-07 |
Process for purification of 2,2,3,3-tetrafluorooxetane Grant 4,908,460 - Ohsaka , et al. March 13, 1 | 1990-03-13 |
Monohalogenotrifluorooxetane and its preparation Grant 4,864,040 - Ohsaka , et al. September 5, 1 | 1989-09-05 |
Halogen-containing polyether Grant 4,845,268 - Ohsaka , et al. * July 4, 1 | 1989-07-04 |
2,2-difluoropropionic acid derivatives Grant 4,719,052 - Ohsaka , et al. January 12, 1 | 1988-01-12 |
Substituted trifluorooxetanes Grant 4,709,060 - Ohsaka , et al. November 24, 1 | 1987-11-24 |
Process for preparing benzotrifluoride and its derivatives Grant 4,242,286 - Ohsaka December 30, 1 | 1980-12-30 |
Process for preparing hexafluoropropanone-2 Grant 4,165,340 - Tohzuka , et al. August 21, 1 | 1979-08-21 |
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