Patents by Inventor Haruyuki Hirayama

Haruyuki Hirayama 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).

  • Publication number: 20230339032
    Abstract: An anodic oxidation-assisted grinding apparatus includes an electrolyte supply passage configured to pour an electrolyte at least between a cathode and a workpiece, a direct current power source configured to apply a direct current, via the electrolyte, to an anode, the cathode, and the workpiece to form an anodic oxidation film on a surface of the workpiece, and a grindstone configured to grind the anodic oxidation film formed on the surface of the workpiece.
    Type: Application
    Filed: April 20, 2023
    Publication date: October 26, 2023
    Applicant: JTEKT MACHINE SYSTEMS CORPORATION
    Inventors: Wataru YOSHIKAWA, Haruyuki HIRAYAMA, Tomohisa KATO
  • Patent number: 9669511
    Abstract: [Problem] To machine a workpiece such as a hard brittle material or difficult-to-cut material innovatively and accurately and to improve the machining rate significantly. [Solution Means] In grinding a workpiece W by a cup grinding wheel 3 while supplying a slurry 5 containing abrasive grains, the grinding wheel 3 is rotated at low peripheral speed. No more than 500 m/min., preferably 30 to 430 m/min., is appropriate for the peripheral speed of the grinding wheel 3. The slurry 5 at a flow rate of no more than 4.0 ml/cm2/h, preferably of 1.0 to 2.0 ml/cm2/h is dropped or sprayed little by little onto a ground surface of the workpiece W.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: June 6, 2017
    Assignee: KOYO MACHINE INDUSTRIES CO., LTD.
    Inventors: Haruyuki Hirayama, Kazuhiro Yusou
  • Publication number: 20150239089
    Abstract: [Problem] To machine a workpiece such as a hard brittle material or difficult-to-cut material innovatively and accurately and to improve the machining rate significantly. [Solution Means] In grinding a workpiece W by a cup grinding wheel 3 while supplying a slurry 5 containing abrasive grains, the grinding wheel 3 is rotated at low peripheral speed. No more than 500 m/min., preferably 30 to 430 m/min., is appropriate for the peripheral speed of the grinding wheel 3. The slurry 5 at a flow rate of no more than 4.0 ml/cm2/h, preferably of 1.0 to 2.0 ml/cm2/h is dropped or sprayed little by little onto a ground surface of the workpiece W.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 27, 2015
    Applicant: KOYO MACHINE INDUSTRIES CO., LTD.
    Inventors: Haruyuki HIRAYAMA, Kazuhiro YUSOU
  • Patent number: 8403732
    Abstract: To facilitate with high accuracy adjustment of a minute angle degree and also to sufficiently secure the rigidity of a whole device after the adjustment.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: March 26, 2013
    Assignee: Koyo Machine Industries Co., Ltd.
    Inventors: Haruyuki Hirayama, Hirohisa Yamada, Yoshinori Nakanishi, Tomohiro Okamoto
  • Patent number: 8403731
    Abstract: The present invention facilitates with high accuracy the adjustment of a minute angle degree, and also is capable of sufficiently securing the rigidity of the whole device after the adjustment and provides good operability, accuracy, and rigidity. Provided are a workpiece attaching body having a workpiece attaching surface and a rotating body rotatably supporting the workpiece attaching body.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: March 26, 2013
    Assignee: Koyo Machine Industries Co., Ltd.
    Inventors: Haruyuki Hirayama, Hirohisa Yamada, Yoshinori Nakanishi, Tomohiro Okamoto
  • Publication number: 20100003907
    Abstract: The present invention facilitates with high accuracy the adjustment of a minute angle degree, and also is capable of sufficiently securing the rigidity of the whole device after the adjustment and provides good operability, accuracy, and rigidity. Provided are a workpiece attaching body having a workpiece attaching surface and a rotating body rotatably supporting the workpiece attaching body.
    Type: Application
    Filed: June 12, 2009
    Publication date: January 7, 2010
    Applicant: KOYO MACHINE INDUSTRIES CO., LTD.
    Inventors: Haruyuki HIRAYAMA, Hirohisa Yamada, Yoshinori Nakanishi, Tomohiro Okamoto
  • Publication number: 20100003908
    Abstract: To facilitate with high accuracy adjustment of a minute angle degree and also to sufficiently secure the rigidity of a whole device after the adjustment.
    Type: Application
    Filed: June 12, 2009
    Publication date: January 7, 2010
    Applicant: KOYO MACHINE INDUSTRIES CO., LTD.
    Inventors: Haruyuki HIRAYAMA, Hirohisa YAMADA, Yoshinori NAKANISHI, Tomohiro OKAMOTO