Patents by Inventor Toshiya Hirata

Toshiya Hirata 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).

  • Grindstone, grindstone manufacturing method, boring tool, abrasive grain positioning jig, and relief surface forming method
    Patent number: 9238290
    Abstract: A grindstone is provided with a base (211) and a plurality of abrasive grains (210) aligned in a row and bonded on a surface (212) of the base (211). Each of the abrasive grains (210) has a relief surface (216) with a relief angle of a predetermined angle (?).
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: January 19, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masahiko Masuzaki, Koji Saito, Masato Ide, Satoshi Kanbayashi, Fumio Sato, Toshiya Hirata, Takashi Yoshida
  • Grinding stone, manufacturing method of grinding stone, and manufacturing apparatus of grinding stone
    Patent number: 9233454
    Abstract: A manufacturing apparatus, of a grinding stone which is manufactured by attaching abrasive grains respectively having polyhedral shapes in which mutually opposed surfaces are parallel to each other to a base member, is provided with: an abrasive grains classifying apparatus adapted to classify the abrasive grains based on sizes of the abrasive grains defined by face-to-face distances between the mutually opposed surfaces; and an attaching apparatus adapted to attach the abrasive grains classified by the abrasive grains classifying apparatus to the base member.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 12, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masahiko Masuzaki, Fumio Sato, Satoru Uchiumi, Nobuhiro Asai, Koji Saito, Satoshi Kanbayashi, Toshiya Hirata, Takashi Yoshida
  • Metal bonded grinding stone, and method of manufacturing the same
    Patent number: 8821606
    Abstract: A metal bonded grinding stone is manufactured by heating and pressurizing a material including abrasive grains, a cobalt, a tungsten disulfide and a copper tin alloy to obtain a sintered product, and rapid-cooling the sintered product.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: September 2, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masato Ujihashi, Toshiya Hirata, Kazuhiko Kitanaka, Naohide Unno, Hiroshi Sugiyama, Noriyuki Namba
  • Abrasive grains classifying apparatus
    Patent number: 8733554
    Abstract: An abrasive grains classifying apparatus is used to classify abrasive grains based on their sizes that can be determined by distances between mutually opposed surfaces of the respective abrasive grains. The abrasive grains classifying apparatus is provided with: a first gap portion 35 which includes two rollers 24 and 32 disposed at a predetermined distance L2 from each other and also which classifies the abrasive grains 60 into first abrasive grains 60b and 60c capable of passing through between the rollers 24 and 32 and second abrasive grains 60a incapable of passing through between the two rollers 24 and 32; and a second gap portion 54 which includes two rollers 54 and 69 disposed at a distance L3 smaller than the distance L2 in the first gap portion 35 from each other.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: May 27, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Fumio Sato, Takashi Yoshida, Toshiya Hirata, Koji Saito
  • GRINDSTONE, GRINDSTONE MANUFACTURING METHOD, BORING TOOL, ABRASIVE GRAIN POSITIONING JIG, AND RELIEF SURFACE FORMING METHOD
    Publication number: 20130065496
    Abstract: A grindstone is provided with a base (211) and a plurality of abrasive grains (210) aligned in a row and bonded on a surface (212) of the base (211). Each of the abrasive grains (210) has a relief surface (216) with a relief angle of a predetermined angle (?).
    Type: Application
    Filed: May 19, 2011
    Publication date: March 14, 2013
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masahiko Masuzaki, Koji Saito, Masato Ide, Satoshi Kanbayashi, Fumio Sato, Toshiya Hirata, Takashi Yoshida
  • METAL BONDED GRINDING STONE, AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20120137596
    Abstract: A metal bonded grinding stone is manufactured by heating and pressurizing a material including abrasive grains, a cobalt, a tungsten disulfide and a copper tin alloy to obtain a sintered product, and rapid-cooling the sintered product.
    Type: Application
    Filed: July 21, 2010
    Publication date: June 7, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masato Ujihashi, Toshiya Hirata, Kazuhiko Kitanaka, Naohide Unno, Hiroshi Sugiyama, Noriyuki Namba
  • GRINDING STONE, MANUFACTURING METHOD OF GRINDING STONE, AND MANUFACTURING APPARATUS OF GRINDING STONE
    Publication number: 20120071074
    Abstract: A manufacturing apparatus, of a grinding stone which is manufactured by attaching abrasive grains respectively having polyhedral shapes in which mutually opposed surfaces are parallel to each other to a base member, is provided with: an abrasive grains classifying apparatus adapted to classify the abrasive grains based on sizes of the abrasive grains defined by face-to-face distances between the mutually opposed surfaces; and an attaching apparatus adapted to attach the abrasive grains classified by the abrasive grains classifying apparatus to the base member.
    Type: Application
    Filed: March 31, 2010
    Publication date: March 22, 2012
    Applicant: Honda Motor Co., Ltd.
    Inventors: Masahiko Masuzaki, Fumio Sato, Satoru Uchiumi, Nobuhiro Asai, Koji Saito, Satoshi Kanbayashi, Toshiya Hirata, Takashi Yoshida
  • ABRASIVE GRAINS CLASSIFYING APPARATUS
    Publication number: 20100243540
    Abstract: An abrasive grains classifying apparatus is used to classify abrasive grains based on their sizes that can be determined by distances between mutually opposed surfaces of the respective abrasive grains. The abrasive grains classifying apparatus is provided with: a first gap portion 35 which includes two rollers 24 and 32 disposed at a predetermined distance L2 from each other and also which classifies the abrasive grains 60 into first abrasive grains 60b and 60c capable of passing through between the rollers 24 and 32 and second abrasive grains 60a incapable of passing through between the two rollers 24 and 32; and a second gap portion 54 which includes two rollers 54 and 69 disposed at a distance L3 smaller than the distance L2 in the first gap portion 35 from each other.
    Type: Application
    Filed: March 30, 2010
    Publication date: September 30, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Fumio Sato, Takashi Yoshida, Toshiya Hirata, Koji Saito