Patents by Inventor Teruo Umemoto

Teruo Umemoto 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).

  • Halogenated S-(perfluoroalkyl)dibenzothiophenium salt and its production methods
    Patent number: 10155739
    Abstract: Halogenated S-(perfluoroalkyl)dibenzothiophenium salt represented by the following general formula (I): This compound is a new, reactive, and industrially useful reagent for perfluoroalkylating organic compounds. The reagent can be prepared by a one-pot process or a two-step reaction process from a halogenated biphenyl and easily isolated by a filtration method. In addition, the halogenated biphenyl can be recovered by desulfurization from a halogenated dibenzothiophene obtained as a side-product by the usage of the reagent.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: December 18, 2018
    Inventors: Teruo Umemoto, Bin Zhang, Tianhao Zhu, Xiaocong Zhou, Yuanqiang Li
  • Halogenated S-(perfluoroalkyl)dibenzothiophenium salt and its production methods
    Publication number: 20170349567
    Abstract: Halogenated S-(perfluoroalkyl)dibenzothiophenium salt represented by the following general formula (I): This compound is a new, reactive, and industrially useful reagent for perfluoroalkylating organic compounds. The reagent can be prepared by a one-pot process or a two-step reaction process from a halogenated biphenyl and easily isolated by a filtration method. In addition, the halogenated biphenyl can be recovered by desulfurization from a halogenated dibenzothiophene obtained as a side-product by the usage of the reagent.
    Type: Application
    Filed: December 30, 2015
    Publication date: December 7, 2017
    Inventors: Teruo UMEMOTO, Bin ZHANG, Tianhao ZHU, Xiaocong ZHOU, Yuanqiang LI
  • Industrial methods for producing arylsulfur pentafluorides
    Patent number: 9676710
    Abstract: Industrial methods for producing arylsulfur pentafluorides are disclosed. Methods include reacting arylsulfur halotetrafluoride with hydrogen fluoride in the absence or presence of one or more additives selected from a group of fluoride salts, non-fluoride salts, and unsaturated organic compounds to form arylsulfur pentafluorides.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: June 13, 2017
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Teruo Umemoto, Norimichi Saito
  • Industrial methods for producing arylsulfur pentafluorides
    Patent number: 9630920
    Abstract: Industrial methods for producing arylsulfur pentafluorides are disclosed. Methods include reacting arylsulfur halotetrafluoride with hydrogen fluoride in the absence or presence of one or more additives selected from a group of fluoride salts, non-fluoride salts, and unsaturated organic compounds to form arylsulfur pentafluorides.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: April 25, 2017
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Teruo Umemoto, Norimichi Saito
  • Industrial methods for producing arylsulfur pentafluorides
    Patent number: 9630919
    Abstract: Industrial methods for producing arylsulfur pentafluorides are disclosed. Methods include reacting arylsulfur halotetrafluoride with hydrogen fluoride in the absence or presence of one or more additives selected from a group of fluoride salts, non-fluoride salts, and unsaturated organic compounds to form arylsulfur pentafluorides.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: April 25, 2017
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Teruo Umemoto, Norimichi Saito
  • Industrial Methods for Producing Arylsulfur Pentafluorides
    Publication number: 20160362365
    Abstract: Industrial methods for producing arylsulfur pentafluorides are disclosed. Methods include reacting arylsulfur halotetrafluoride with hydrogen fluoride in the absence or presence of one or more additives selected from a group of fluoride salts, non-fluoride salts, and unsaturated organic compounds to form arylsulfur pentafluorides.
    Type: Application
    Filed: August 24, 2016
    Publication date: December 15, 2016
    Inventors: Teruo Umemoto, Norimichi Saito
  • Industrial Methods for Producing Arylsulfur Pentafluorides
    Publication number: 20160362366
    Abstract: Industrial methods for producing arylsulfur pentafluorides are disclosed. Methods include reacting arylsulfur halotetrafluoride with hydrogen fluoride in the absence or presence of one or more additives selected from a group of fluoride salts, non-fluoride salts, and unsaturated organic compounds to form arylsulfur pentafluorides.
    Type: Application
    Filed: August 24, 2016
    Publication date: December 15, 2016
    Inventors: Teruo Umemoto, Norimichi Saito
  • Industrial Methods for Producing Arylsulfur Pentafluorides
    Publication number: 20160362367
    Abstract: Industrial methods for producing arylsulfur pentafluorides are disclosed. Methods include reacting arylsulfur halotetrafluoride with hydrogen fluoride in the absence or presence of one or more additives selected from a group of fluoride salts, non-fluoride salts, and unsaturated organic compounds to form arylsulfur pentafluorides.
    Type: Application
    Filed: August 24, 2016
    Publication date: December 15, 2016
    Inventors: Teruo Umemoto, Norimichi Saito
  • Industrial methods for producing arylsulfur pentafluorides
    Patent number: 9447034
    Abstract: Industrial methods for producing arylsulfur pentafluorides are disclosed. Methods include reacting arylsulfur halotetrafluoride with hydrogen fluoride in the absence or presence of one or more additives selected from a group of fluoride salts, non-fluoride salts, and unsaturated organic compounds to form arylsulfur pentafluorides.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: September 20, 2016
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Teruo Umemoto, Norimichi Saito
  • Substituted phenylsulfur trifluoride and other like fluorinating agents
    Patent number: 9365471
    Abstract: Novel substituted phenylsulfur trifluorides that act as fluorinating agents are disclosed. Also disclosed are methods for their preparation and methods for their use in introducing one or more fluorine atoms into target substrate compounds. Finally, various intermediate compounds for use in preparing substituted phenylsulfur trifluorides are provided.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 14, 2016
    Assignee: UBE INDUSTRIES, LTD.
    Inventor: Teruo Umemoto
  • Industrial Methods for Producing Arylsulfur Pentafluorides
    Publication number: 20150315139
    Abstract: Industrial methods for producing arylsulfur pentafluorides are disclosed. Methods include reacting arylsulfur halotetrafluoride with hydrogen fluoride in the absence or presence of one or more additives selected from a group of fluoride salts, non-fluoride salts, and unsaturated organic compounds to form arylsulfur pentafluorides.
    Type: Application
    Filed: July 14, 2015
    Publication date: November 5, 2015
    Inventors: Teruo Umemoto, Norimichi Saito
  • Industrial methods for producing arylsulfur pentafluorides
    Patent number: 9108910
    Abstract: Industrial methods for producing arylsulfur pentafluorides are disclosed. Methods include reacting arylsulfur halotetrafluoride with hydrogen fluoride in the absence or presence of one or more additives selected from a group of fluoride salts, non-fluoride salts, and unsaturated organic compounds to form arylsulfur pentafluorides.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: August 18, 2015
    Assignee: UBE Industries, Ltd.
    Inventors: Teruo Umemoto, Norimichi Saito
  • Process for producing arylsulfur pentafluorides
    Patent number: 8987516
    Abstract: Novel processes for preparing arylsulfur pentafluorides are disclosed. Processes include reacting at least one aryl sulfur compound with a halogen and a fluoro salt to form an arylsulfur halotetrafluoride. The arylsulfur halotetrafluoride is reacted with a fluoride source to form a target arylsulfur pentafluoride.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: March 24, 2015
    Assignee: UBE Industries, Ltd.
    Inventor: Teruo Umemoto
  • Processes for isolating fluorinated products
    Patent number: 8937204
    Abstract: Useful processes for isolating the fluorinated products formed by reaction with 4-tert-butyl-2,6-dimethylphenylsulfur trifluoride (Fluolead) are disclosed. The processes comprise the conversion of the byproduct (formula I) to sulfinate ester (formula V), and to sulfonate eater (formula VI), and then to the water-soluble sulfonate salt (formula IV) in the presence of the fluorinated products.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: January 20, 2015
    Assignee: UBE Industries, Ltd.
    Inventors: Norimichi Saito, Junichi Chika, Teruo Umemoto
  • PROCESSES FOR ISOLATING FLUORINATED PRODUCTS
    Publication number: 20150018587
    Abstract: Useful processes for isolating the fluorinated products formed by reaction with 4-tert-butyl-2,6-dimethylphenylsulfur trifluoride (Fluolead) are disclosed. The processes comprise the conversion of the byproduct (formula I) to sulfinate ester (formula V), and to sulfonate eater (formula VI), and then to the water-soluble sulfonate salt (formula IV) in the presence of the fluorinated products.
    Type: Application
    Filed: February 7, 2013
    Publication date: January 15, 2015
    Applicant: UBE Industries, Ltd.
    Inventors: Norimichi Saito, Junichi Chika, Teruo Umemoto
  • Substituted Phenylsulfur Trifluoride and Other Like Fluorinating Agents
    Publication number: 20140235898
    Abstract: Novel substituted phenylsulfur trifluorides that act as fluorinating agents are disclosed. Also disclosed are methods for their preparation and methods for their use in introducing one or more fluorine atoms into target substrate compounds. Finally, various intermediate compounds for use in preparing substituted phenylsulfur trifluorides are provided.
    Type: Application
    Filed: March 14, 2014
    Publication date: August 21, 2014
    Applicant: UBE INDUSTRIES, LTD.
    Inventor: Teruo UMEMOTO
  • Substituted phenylsulfur trifluoride and other like fluorinating agents
    Patent number: 8710270
    Abstract: Novel substituted phenylsulfur trifluorides that act as fluorinating agents are disclosed. Also disclosed are methods for their preparation and methods for their use in introducing one or more fluorine atoms into target substrate compounds. Finally, various intermediate compounds for use in preparing substituted phenylsulfur trifluorides are provided.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: April 29, 2014
    Assignee: Ube Industries, Ltd.
    Inventor: Teruo Umemoto
  • Processes for preparing poly(pentafluorosulfanyl)aromatic compounds
    Patent number: 8653302
    Abstract: Novel processes for preparing poly(pentafluorosulfanyl)aromatic compounds are disclosed. Processes include reacting an aryl sulfur compound with a halogen and a fluoro salt to form a poly(halotetrafluorosulfanyl)aromatic compound. The poly(halotetrafluorosulfanyl)aromatic compound is reacted with a fluoride source to form a target poly(pentafluorosulfanyl)aromatic compound.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: February 18, 2014
    Assignee: UBE Industries, Ltd.
    Inventor: Teruo Umemoto
  • Industrial Methods for Producing Arylsulfur Pentafluorides
    Publication number: 20130324765
    Abstract: Industrial methods for producing arylsulfur pentafluorides are disclosed. Methods include reacting arylsulfur halotetrafluoride with hydrogen fluoride in the absence or presence of one or more additives selected from a group of fluoride salts, non-fluoride salts, and unsaturated organic compounds to form arylsulfur pentafluorides.
    Type: Application
    Filed: February 14, 2012
    Publication date: December 5, 2013
    Applicant: UBE Industries, Ltd.
    Inventors: Teruo Umemoto, Norimichi Saito
  • Methods for producing fluorinated phenylsulfur pentafluorides
    Patent number: 8399720
    Abstract: A new method for preparing fluorinated phenylsulfur pentafluorides is disclosed. A fluorinated phenylsulfur halotetrafluoride is reacted with SbFnClm and SbF3 to form a fluorinated phenylsulfur pentafluoride.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 19, 2013
    Assignee: UBE Industries, Ltd.
    Inventor: Teruo Umemoto