Patents by Inventor Hirofumi Mitsunaka

Hirofumi Mitsunaka 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).

  • Heat-resistant aluminum hydroxide and method for preparation thereof
    Patent number: 8138255
    Abstract: A heat-resistant aluminum hydroxide which is prepared by subjecting a mixture of aluminum hydroxide with a reaction retardant for retarding the conversion aluminum hydroxide to boehmite, as a raw material, to the hydrothermal treatment or to pressurization and heating in a steam atmosphere; and a method for preparing a heat-resistant aluminum hydroxide which comprises subjecting a mixture of aluminum hydroxide with a reaction retardant for retarding the conversion aluminum hydroxide to boehmite as a raw material to the hydrothermal treatment, or to pressurization and heating in a steam atmosphere.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: March 20, 2012
    Assignee: Kawai-Lime Ind. Co. Ltd.
    Inventors: Hirofumi Mitsunaka, Kenji Kido, Hirokazu Kihou
  • Heat-resistant aluminum hydroxide and method for preparation thereof
    Publication number: 20060216226
    Abstract: A heat-resistant aluminum hydroxide which is prepared by subjecting a mixture of aluminum hydroxide with a reaction retardant for retarding the conversion aluminum hydroxide to boehmite, as a raw material, to the hydrothermal treatment or to pressurization and heating in a steam atmosphere; and a method for preparing a heat-resistant aluminum hydroxide which comprises subjecting a mixture of aluminum hydroxide with a reaction retardant for retarding the conversion aluminum hydroxide to boehmite as a raw material to the hydrothermal treatment, or to pressurization and heating in a steam atmosphere.
    Type: Application
    Filed: September 23, 2004
    Publication date: September 28, 2006
    Applicant: Kawai-Lime Ind. Co., Ltd.
    Inventors: Hirofumi Mitsunaka, Kenji Kido, Hirokazu Kihou