Patents by Inventor Toshihiko Hiaki

Toshihiko Hiaki 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 a pigment
    Patent number: 7737270
    Abstract: Provided is a method for producing a pigment, in particular, a metal phthalocyanine, in high yield and in a green process. The method has (1) a step of obtaining a solution mixture by mixing at least one type of compound serving as a raw material for a pigment with a solvent, and (2) a step of obtaining the pigment by reacting the compound while holding the solution mixture at not less than a temperature where a subcritical state or a supercritical state of the solvent occurs.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: June 15, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazumichi Nakahama, Yukio Hanyu, Takayuki Teshima, Akira Kuriyama, Toshihiko Hiaki, Kiwamu Sue, Hayato Hattori, Hironori Yamamoto
  • METHOD FOR PRODUCING A PIGMENT
    Publication number: 20080182984
    Abstract: Provided is a method for producing a pigment, in particular, a metal phthalocyanine, in high yield and in a green process. The method has (1) a step of obtaining a solution mixture by mixing at least one type of compound serving as a raw material for a pigment with a solvent, and (2) a step of obtaining the pigment by reacting the compound while holding the solution mixture at not less than a temperature where a subcritical state or a supercritical state of the solvent occurs.
    Type: Application
    Filed: January 24, 2008
    Publication date: July 31, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazumichi Nakahama, Yukio Hanyu, Takayuki Teshima, Akira Kuriyama, Toshihiko Hiaki, Kiwamu Sue, Hayato Hattori, Hironori Yamamoto