Patents by Inventor Tatsuya UEJI

Tatsuya UEJI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD OF PRODUCING PERFLUORO(2,4-DIMETHYL-2-FLUOROFORMYL-1,3-DIOXOLANE)
    Publication number: 20230002342
    Abstract: Provided is a method of producing perfluoro(2,4-dimethyl-2-fluoroformyl-1,3-dioxolane, the method having a dimer reaction step of reacting a trifluoropyruvic acid fluoride dimer with hexafluoropropylene oxide in an organic solvent in the presence of one or more fluorides selected from the group consisting of potassium fluoride and sodium fluoride to obtain perfluoro(dimethyl-2-oxo-1,4-dioxane).
    Type: Application
    Filed: October 2, 2020
    Publication date: January 5, 2023
    Applicants: SAGAMI CHEMICAL RESEARCH INSTITUTE, TOSOH CORPORATION, TOSOH FINECHEM CORPORATION
    Inventors: Munenori INOUE, Tatsuya UEJI, Hiroshi MATSUO