Patents by Inventor Hirotsugu Saitou

Hirotsugu Saitou 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).

  • Complex apparatus and method for polishing an ingot block
    Patent number: 8460058
    Abstract: A compound chamfering device that manufactures prism-shaped ingot blocks of excellent surface smoothness is disclosed. The four-corner round surfaces and the four sides of a prism-shaped ingot obtained by using a pair of rotary blades of a slicer to perform four-side peeloff of a cylindrical ingot block are chamfered by rough grinding with a pair of cup wheel type rough grinding grindstones. A pair of cup wheel type finishing grinding grindstones are used to chamfering by finishing grinding the four-corner round surfaces and the four sides of the block.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: June 11, 2013
    Assignee: Okamoto Machine Tool Works, Ltd.
    Inventors: Yutaka Yoshida, Kazuo Kobayashi, Tsuyoshi Toshida, Yukio Uehara, Yasuhiro Terakubo, Hirotsugu Saitou
  • COMPLEX APPARATUS AND METHOD FOR POLISHING AN INGOT BLOCK
    Publication number: 20110306277
    Abstract: A compound chamfering device that manufactures prism-shaped ingot blocks of excellent surface smoothness is disclosed. The four-corner round surfaces and the four sides of a prism-shaped ingot obtained by using a pair of rotary blades of a slicer to perform four-side peeloff of a cylindrical ingot block are chamfered by rough grinding with a pair of cup wheel type rough grinding grindstones. A pair of cup wheel type finishing grinding grindstones are used to chamfering by finishing grinding the four-corner round surfaces and the four sides of the block.
    Type: Application
    Filed: December 10, 2010
    Publication date: December 15, 2011
    Applicant: OKAMOTO MACHINE TOOL WORKS, LTD.
    Inventors: Yutaka YOSHIDA, Kazuo Kobayashi, Tsuyoshi Toshida, Yukio Uehara, Yasuhiro Terakubo, Hirotsugu Saitou