Patents by Inventor Yukio Ohmure

Yukio Ohmure 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).

  • Solvent composition comprising a chloropentafluoropropane and a chlorofluoroethane
    Patent number: 5120470
    Abstract: The present invention provides:(1) a solvent composition comprising chloropentafluoropropane and 1,1-dichloro-1-fluoroethane; and(2) a solvent composition comprising chloropentafluoropropane and dichlorotrifluoroethane.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: June 9, 1992
    Assignee: Daikin Industries, Ltd.
    Inventors: Yukio Ohmure, Masahiro Noguchi, Naoyoshi Hanatani
  • Working fluids
    Patent number: 4985168
    Abstract: The present invention provides:(1) a working fluid comprising at least one of 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane,(2) a working fluid comprising (1) at least one of 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane and (2) at least one of 2,2-dichloro-1,1,1-trifluoroethyane, 1,2-dichloro-1,1,2-trifluoroethane and 1,1-dichloro-1,2,2-trifluoroethane, and(3) a working fluid comprising (1) at least one of 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane and (2) 1,1-dichloro-1-fluoroethane.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: January 15, 1991
    Assignee: Daikin Industries, Ltd.
    Inventors: Yukio Ohmure, Hiroshi Kashiwagi, Katsuki Fujiwara, Tatsumi Tsuchiya, Hirokazu Aoyama
  • Halogen-containing polyether and its use
    Patent number: 4836944
    Abstract: A halogen-containing polyether which comprises a repeating unit structure of the formula:--(CH.sub.2 CF.sub.2 CF.sub.2 O).sub.a --(CHClCF.sub.2 CF.sub.2 O).sub.b --(CCl.sub.2 CF.sub.2 CF.sub.2 O).sub.c --(CHFCF.sub.2 CF.sub.2 O).sub.d --(CFClCF.sub.2 CF.sub.2 O).sub.e --(CF.sub.2 CF.sub.2 CF.sub.2 O).sub.f --(I)wherein a, b, c, d, e and f are each 0 or a positive integer and satisfy the following equations:2.ltoreq.a+b+c+d+e+f.ltoreq.200 and 1.ltoreq.a+c+d+fand at least one terminal group selected from the group consisting of groups represented by the formulas:--CH.sub.2 OH, --COOR.sup.1, --CONR.sup.1.sub.2, --COOOR.sup.2 Ph and --R.sup.2 Phwherein R.sup.1 is a hydrogen atom, a C.sub.1 -C.sub.5 alkyl group or an aromatic group, R.sup.2 is a divalent organic group and Ph is an aromatic group, which has good lubricating properties.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: June 6, 1989
    Assignee: Daikin Industries Ltd.
    Inventors: Takashi Tohzuka, Sueyoshi Ishikawa, Katsuyoshi Kubo, Yoshitaka Honda, Yukio Ohmure, Norio Kataoka