Patents by Inventor Hirotake Sueta

Hirotake Sueta 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).

  • Evaporative pattern, method of forming an evaporative pattern, and method of forming a metal mold by using an evaporative pattern
    Patent number: 8678071
    Abstract: A lightweight metal mold having a necessary rigidity is realized. Firstly, an original pattern of an evaporative pattern is formed by machining an evaporative material block. The original pattern includes a three-dimensional mesh structure including a plurality of bar-shaped parts and connecting points that connect ends of the bar-shaped parts and are distributed in a three-dimensional space, and a plurality of block parts having fixed relative positional relationship by being fixed to the three-dimensional mesh structure. Then, at least a portion of at least one or more of the bar-shaped parts composing the original pattern is removed, and replaced with a tube member. Then, a full-mold casting is performed by using the evaporative pattern having the replaced tube member. Positional relationship of the block parts in which surfaces, etc. necessary for the metal mold are formed is fixed by the three-dimensional mesh structure, and the necessary rigidity is secured.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: March 25, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hirotake Sueta, Kiyoshi Kameyama, Atsushi Takemoto, Tatsuya Watarai, Hitoshi Akimoto, Masaki Yamashita
  • EVAPORATIVE PATTERN, METHOD OF FORMING AN EVAPORATIVE PATTERN, AND METHOD OF FORMING A METAL MOLD BY USING AN EVAPORATIVE PATTERN
    Publication number: 20130295316
    Abstract: A lightweight metal mold having a necessary rigidity is realized. Firstly, an original pattern of an evaporative pattern is formed by machining an evaporative material block. The original pattern includes a three-dimensional mesh structure including a plurality of bar-shaped parts and connecting points that connect ends of the bar-shaped parts and are distributed in a three-dimensional space, and a plurality of block parts having fixed relative positional relationship by being fixed to the three-dimensional mesh structure. Then, at least a portion of at least one or more of the bar-shaped parts composing the original pattern is removed, and replaced with a tube member. Then, a full-mold casting is performed by using the evaporative pattern having the replaced tube member. Positional relationship of the block parts in which surfaces, etc. necessary for the metal mold are formed is fixed by the three-dimensional mesh structure, and the necessary rigidity is secured.
    Type: Application
    Filed: January 28, 2011
    Publication date: November 7, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hirotake Sueta, Kiyoshi Kameyama, Atsushi Takemoto, Tatsuya Watarai, Hitoshi Akimoto, Masaki Yamashita