Patents by Inventor Masaaki Tsuzaki

Masaaki Tsuzaki 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).

  • Fluorinated carrier solvent
    Publication number: 20030077392
    Abstract: A method for mixing an organic chemical substance with a carrier solvent, wherein the carrier solvent comprises at least one fluorinated solvent A selected from the group consisting of (perfluorohexyloxy)methane and tridecafluorohexane.
    Type: Application
    Filed: November 13, 2002
    Publication date: April 24, 2003
    Applicant: Asahi Glass Company, Limited
    Inventors: Tsuyoshi Hanada, Masaaki Tsuzaki
  • Azeotropic solvent composition and cleaning method
    Patent number: 6551978
    Abstract: An azeotropic solvent composition comprising 90.3 mass % of 1,3-dichloro-1,1,2,2,3-pentafluoropropane and 9.7 mass % of n-hexane.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: April 22, 2003
    Assignee: Asahi Glass Company, Limited
    Inventors: Tsuyoshi Hanada, Masaaki Tsuzaki
  • Fluorinated carrier solvent
    Patent number: 6544595
    Abstract: A method for mixing an organic chemical substance with a carrier solvent, wherein the carrier solvent comprises at least one fluorinated solvent A selected from the group consisting of (perfluorohexyloxy)methane and tridecafluorohexane.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: April 8, 2003
    Assignee: Asahi Glass Company, Limited
    Inventors: Tsuyoshi Hanada, Masaaki Tsuzaki
  • Fluorinated carrier solvent
    Publication number: 20020155959
    Abstract: A method for mixing an organic chemical substance with a carrier solvent, wherein the carrier solvent comprises at least one fluorinated solvent A selected from the group consisting of (perfluorohexyloxy)methane and tridecafluorohexane.
    Type: Application
    Filed: April 11, 2002
    Publication date: October 24, 2002
    Applicant: Asahi Glass Company, Limited
    Inventors: Tsuyoshi Hanada, Masaaki Tsuzaki
  • Method of removing grease, oil or flux from an article
    Patent number: 6395699
    Abstract: A solvent composition comprising (a) dichloropentafluoropropane, (b) trans-1,2-dichloroethylene and (c) methanol, wherein the proportions of (a), (b) and (c) in the total amount of (a), (b) and (c) are from 57 to 75 wt %, from 20 to 35 wt % and from 5 to 8 wt %, respectively.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: May 28, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kenroh Kitamura, Michino Ikehata, Masaaki Tsuzaki
  • Solvent composition
    Patent number: 6348443
    Abstract: A solvent composition comprising dichloropentafluoropropane, perfluorobutyl methyl ether and an alcohol.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: February 19, 2002
    Assignee: Asahi Glass Company, Limited
    Inventors: Tsuyoshi Hanada, Masaaki Tsuzaki
  • Azeotropic solvent composition and cleaning method
    Publication number: 20020006885
    Abstract: An azeotropic solvent composition comprising 90.3 mass % of 1,3-dichloro-1,1,2,2,3-pentafluoropropane and 9.7 mass % of n-hexane.
    Type: Application
    Filed: June 4, 2001
    Publication date: January 17, 2002
    Applicant: Asahi Glass Company, Limited
    Inventors: Tsuyoshi Hanada, Masaaki Tsuzaki
  • Fluorinated carried solvent
    Publication number: 20010008652
    Abstract: A method for mixing an organic chemical substance with a carrier solvent, wherein the carrier solvent comprises at least one fluorinated solvent A selected from the group consisting of (perfluorohexyloxy)methane and tridecafluorohexane.
    Type: Application
    Filed: January 8, 2001
    Publication date: July 19, 2001
    Applicant: Asahi Glass Company, Limited
    Inventors: Tsuyoshi Hanada, Masaaki Tsuzaki
  • Mixed solvent composition
    Patent number: 6042749
    Abstract: A mixed solvent composition comprising dichloropentafluoropropane and at least one component selected from the group consisting of 1,1,1,2,3,4,4,5,5,5-decafluoropentane and perfluorohexane as the essential components, or a mixed solvent composition comprising dichloropentafluoropropane, an alcohol and at least one component selected from the group consisting of 1,1,1,2,3,4,4,5,5,5-decafluoropentane and perfluorohexane.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: March 28, 2000
    Assignee: AG Technology Co., Ltd.
    Inventors: Kenroh Kitamura, Michino Ikehata, Masaaki Tsuzaki
  • Solvent composition
    Patent number: 5989456
    Abstract: A solvent composition comprising dichloropentafluoropropane and (perfluorobutyl) methyl ether, wherein the ratios of the dichloropentafluoropropane and the (perfluorobutyl) methyl ether in the solvent composition are from 10 to 50 wt % and from 50 to 90 wt %, respectively.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: November 23, 1999
    Assignee: Asahi Glass Company Ltd.
    Inventor: Masaaki Tsuzaki
  • Mixed solvent composition with 1-H-perfluorohexane, methanol or ethanol, and optionally a hydrocarbon
    Patent number: 5648325
    Abstract: An azeotropic composition consisting of 89.2 wt % of 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorohexane and 10.8 wt % of methanol and an azeotropic composition consisting of 91.1 wt % of 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorohexane and 8.9 wt % of ethanol.The present invention provides alternative azeotropic solvent compositions which have excellent properties of conventional 1,1,2-trichloro-l,2,2-trifluoroethane and do not deplete the stratospheric ozone layer.
    Type: Grant
    Filed: June 9, 1995
    Date of Patent: July 15, 1997
    Assignee: AG Technology Co., Ltd.
    Inventors: Kenroh Kitamura, Michino Ikehata, Masaaki Tsuzaki, Kazuya Oharu