Patents by Inventor Kenichi Kobata

Kenichi Kobata 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 for producing hydraulic powder
    Patent number: 8322638
    Abstract: In the invention, a hydraulic powder is prepared by a step of grinding a hydraulic compound in the presence of compound (a) that is obtained by adding an alkyleneoxide having 2 to 4 carbon atoms to a compound which has no amino group, but has an active hydrogen, provided that polyethyleneglycol and polypropyleneglycol are excluded. Alternatively, the hydraulic compound can be ground in the presence of compound (a) and anti-foaming agent (b).
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: December 4, 2012
    Assignee: Kao Corporation
    Inventors: Masaaki Shimoda, Masafumi Shonaka, Toshimasa Hamai, Kenichi Kobata
  • Method for producing hydraulic powder
    Patent number: 8235315
    Abstract: According to the present invention, a hydraulic powder is prepared by including a step of grinding a hydraulic compound in the presence of (A) glycerin and (B) polyethyleneglycol that are present in a fixed weight ratio.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: August 7, 2012
    Assignee: Kao Corporation
    Inventors: Masaaki Shimoda, Masafumi Shonaka, Toshimasa Hamai, Kenichi Kobata
  • METHOD FOR PRODUCING HYDRAULIC POWDER
    Publication number: 20110005432
    Abstract: In the invention, a hydraulic powder is prepared by a step of grinding a hydraulic compound in the presence of compound (a) that is obtained by adding an alkyleneoxide having 2 to 4 carbon atoms to a compound which has no amino group, but has an active hydrogen, provided that polyethyleneglycol and polypropyelenglycol are excluded. Alternatively, the hydraulic compound can be ground in the presence of compound (a) and anti-foaming agent (b).
    Type: Application
    Filed: August 7, 2008
    Publication date: January 13, 2011
    Inventors: Masaaki Shimoda, Masafumi Shonaka, Toshimasa Hamai, Kenichi Kobata
  • METHOD FOR PRODUCING HYDRAULIC POWDER
    Publication number: 20100319587
    Abstract: According to the present invention, a hydraulic powder is prepared by including a step of grinding a hydraulic compound in the presence of (A) glycerin and (B) polyethyleneglycol that are present in a fixed weight ratio.
    Type: Application
    Filed: August 7, 2008
    Publication date: December 23, 2010
    Applicant: Kao Corporation
    Inventors: Masaaki Shimoda, Masafumi Shonaka, Toshimasa Hamai, Kenichi Kobata