Patents by Inventor Yasuyuki Mimura

Yasuyuki Mimura 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).

  • Patent number: 9376532
    Abstract: The present invention provides a novel quaternary ammonium salt compound that is excellent in atomization of a pigment dispersion and storage stability, a dispersant containing the quaternary ammonium salt compound, a use of the quaternary ammonium salt compound, and a process for producing the quaternary ammonium salt compound. The present invention relates to [1] a quaternary ammonium salt compound represented by the general formula (I); [2] a dispersant containing the compound of the above [1]; [3] a use of the compound of the above [1] for dispersing a pigment; and [4] a process for producing a quaternary ammonium salt compound represented by the general formula (I), including a step of reacting a halogenated alkyl ester compound represented by the general formula (II) with a polyamine compound represented by the general formula (III).
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: June 28, 2016
    Assignee: KAO CORPORATION
    Inventors: Kyoichi Shirota, Tsuyoshi Egawa, Katsuhisa Inoue, Yasuyuki Mimura
  • Publication number: 20150329674
    Abstract: The present invention provides a novel quaternary ammonium salt compound that is excellent in atomization of a pigment dispersion and storage stability, a dispersant containing the quaternary ammonium salt compound, a use of the quaternary ammonium salt compound, and a process for producing the quaternary ammonium salt compound. The present invention relates to [1] a quaternary ammonium salt compound represented by the general formula (I); [2] a dispersant containing the compound of the above [1]; [3] a use of the compound of the above [1] for dispersing a pigment; and [4] a process for producing a quaternary ammonium salt compound represented by the general formula (I), including a step of reacting a halogenated alkyl ester compound represented by the general formula (II) with a polyamine compound represented by the general formula (III).
    Type: Application
    Filed: December 27, 2013
    Publication date: November 19, 2015
    Applicant: KAO CORPORATION
    Inventors: Kyoichi SHIROTA, Tsuyoshi EGAWA, Katsuhisa INOUE, Yasuyuki MIMURA
  • Patent number: 7947853
    Abstract: The present invention relates to a process for producing an aliphatic primary amine or an aliphatic secondary amine from an aliphatic alcohol with a high catalytic activity and a high selectivity. In the process for producing an aliphatic amine according to the present invention, a linear, branched, or cyclic aliphatic alcohol having 6 to 22 carbon atoms is contacted with ammonia and hydrogen in the presence of a catalyst formed by supporting a ruthenium component on at least one material selected from the group consisting of (B) a zirconia-containing composite oxide and (C) zirconia surface-treated with a metal by hydrolysis of (A) a ruthenium compound.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: May 24, 2011
    Assignee: Kao Corporation
    Inventors: Yuuta Suzuki, Yasuyuki Mimura, Tetsuaki Fukushima
  • Publication number: 20100029988
    Abstract: The present invention relates to a process for producing an aliphatic primary amine or an aliphatic secondary amine from an aliphatic alcohol with a high catalytic activity and a high selectivity. In the process for producing an aliphatic amine according to the present invention, a linear, branched, or cyclic aliphatic alcohol having 6 to 22 carbon atoms is contacted with ammonia and hydrogen in the presence of a catalyst formed by supporting a ruthenium component on at least one material selected from the group consisting of (B) a zirconia-containing composite oxide and (C) zirconia surface-treated with a metal by hydrolysis of (A) a ruthenium compound.
    Type: Application
    Filed: November 5, 2007
    Publication date: February 4, 2010
    Applicant: KAO CORPORATION
    Inventors: Yuuta Suzuki, Yasuyuki Mimura, Tetsuaki Fukushima
  • Patent number: 6080891
    Abstract: The present invention provides a process for preparing a high-quality aliphatic nitrile in a high yield at a low cost without the dissolution of a catalyst in the product, which comprises reacting an aliphatic carboxylic acid, a lower alkyl ester thereof or a fatty acid glyceride with ammonia in the presence of a solid catalyst which exhibits a high activity even at a reaction temperature of as low as 300.degree. C. or below and is difficultly soluble in the reaction fluid; and a process for the preparation of amines by hydrogenating the aliphatic nitrile prepared by the above process. Namely, the present invention provides a process for the preparation of an aliphatic nitrile by reacting an aliphatic carboxylic acid, a lower alkyl ester thereof or a fatty acid glyceride with ammonia in the presence of a composite oxide catalyst comprising titanium oxide as the main component; and a process for the preparation of amines by hydrogenating the aliphatic nitrile prepared by the above process.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: June 27, 2000
    Assignee: Kao Corporation
    Inventors: Michio Terasaka, Yasuyuki Mimura, Hiroshi Abe
  • Patent number: 6054620
    Abstract: The present invention provides a process for producing a tertiary aliphatic amine having high quality having little non-amines such as esters and alcohols, which is less colored, and which can be converted into a derivative without turbidity.That is, the present invention provides the process which comprises the steps of adding at least one alkali substance of potassium hydroxide and sodium hydroxide or an aqueous solution thereof to the crude tertiary amine product mixture and distilling the mixture to obtain the tertiary amine having a high quality.In addition, the tertiary amine has the formula: R.sub.1 R.sub.2 N--R.sub.3, wherein R.sub.1 and R.sub.2 being a saturated or unsaturated hydrocarbon having 6 to 28 carbon atoms, R.sub.3 being a saturated or unsaturated hydrocarbon having 1 to 5 carbon atoms.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: April 25, 2000
    Assignee: Kao Corporation
    Inventors: Hideki Taniguchi, Yasuyuki Mimura, Hiroshi Abe
  • Patent number: 6005134
    Abstract: The present invention provides a process for preparing a high-quality aliphatic nitrile in a high yield at a low cost without the dissolution of a catalyst in the product, which comprises reacting an aliphatic carboxylic acid, a lower alkyl ester thereof or a fatty acid glyceride with ammonia in the presence of a solid catalyst which exhibits a high activity even at a reaction temperature of as low as 300.degree. C. or below and is difficultly soluble in the reaction fluid; and a process for the preparation of amines by hydrogenating the aliphatic nitrile prepared by the above process. Namely, the present invention provides a process for the preparation of an aliphatic nitrile by reacting an aliphatic carboxylic acid, a lower alkyl ester thereof or a fatty acid glyceride with ammonia in the presence of a composite oxide catalyst comprising titanium oxide as the main component; and a process for the preparation of amines by hydrogenating the aliphatic nitrile prepared by the above process.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: December 21, 1999
    Assignee: Kao Corporation
    Inventors: Michio Terasaka, Yasuyuki Mimura, Hiroshi Abe