Patents by Inventor Koukiti Takahashi

Koukiti Takahashi 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).

  • Aluminum alloy for die casting and molded article
    Patent number: 8021500
    Abstract: Provided are an aluminum alloy for die casting that has excellent die-castability, a molding with high hardness, and a molded article with excellent sheen. The aluminum alloy for die casting includes 0.5 to 2.5 wt. % Mn, 0.2 to 1.0 wt. % Cr, 0.1 to 0.5 wt. % Ti, 0.1 to less than 0.5 wt. % Mg, and Al. The molding is obtained by die-casting the aluminum alloy for die casting. The molding obtained by die-casting the aluminum alloy has excellent die-castability and high hardness. By performing the alumite treatment on the surface of the molding, a molded article having excellent sheen is obtained.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: September 20, 2011
    Assignee: Tanaka Sangyo Co., Ltd.
    Inventors: Kenji Tanaka, Takao Asami, Kiyoto Takeuchi, Yutaka Fujiwara, Koukiti Takahashi, Tadanori Manome
  • ALUMINUM ALLOY FOR DIE CASTING AND MOLDED ARTICLE
    Publication number: 20100054986
    Abstract: Provided are an aluminum alloy for die casting that has excellent die-castability, a molding with high hardness, and a molded article with excellent sheen. The aluminum alloy for die casting includes 0.5 to 2.5 wt. % Mn, 0.2 to 1.0 wt. % Cr, 0.1 to 0.5 wt. % Ti, 0.1 to less than 0.5 wt. % Mg, and Al. The molding is obtained by die-casting the aluminum alloy for die casting. The molding obtained by die-casting the aluminum alloy has excellent die-castability and high hardness. By performing the alumite treatment on the surface of the molding, a molded article having excellent sheen is obtained.
    Type: Application
    Filed: March 23, 2007
    Publication date: March 4, 2010
    Applicant: TANAKA SANGYO CO., LTD.
    Inventors: Kenji Tanaka, Takao Asami, Kiyoto Takeuchi, Yutaka Fujiwara, Koukiti Takahashi, Tadanori Manome