Patents by Inventor Shinya Hamamatsu

Shinya Hamamatsu 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).

  • Center shaft machining apparatus
    Patent number: 11845159
    Abstract: A center shaft machining apparatus includes: a grinding structure that moves on a machining central axis while rotating about the machining central axis and machines an end surface on one end side of a workpiece arranged on the machining central axis; an end portion support structure that supports an opposite end side of the workpiece; and a shaft portion support structure that supports a shaft support portion set at an intermediate portion of the workpiece. The end portion support structure includes an eccentric mechanism capable of supporting an opposite end of the workpiece in a state where a workpiece central axis of the workpiece is eccentric with respect to the machining central axis.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: December 19, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shinya Hamamatsu, Kazunari Inamori
  • CENTER SHAFT MACHINING APPARATUS
    Publication number: 20220266405
    Abstract: A center shaft machining apparatus includes: a grinding structure that moves on a machining central axis while rotating about the machining central axis and machines an end surface on one end side of a workpiece arranged on the machining central axis; an end portion support structure that supports an opposite end side of the workpiece; and a shaft portion support structure that supports a shaft support portion set at an intermediate portion of the workpiece. The end portion support structure includes an eccentric mechanism capable of supporting an opposite end of the workpiece in a state where a workpiece central axis of the workpiece is eccentric with respect to the machining central axis.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 25, 2022
    Inventors: Shinya HAMAMATSU, Kazunari INAMORI
  • Pen
    Patent number: D936143
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: November 16, 2021
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventor: Shinya Hamamatsu
  • Pen
    Patent number: D936739
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: November 23, 2021
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventor: Shinya Hamamatsu
  • Pen
    Patent number: D953200
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: May 31, 2022
    Assignee: MITSUBISHI PENCILCOMPANY, LIMITED
    Inventor: Shinya Hamamatsu
  • Pen
    Patent number: D965683
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: October 4, 2022
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventor: Shinya Hamamatsu
  • Pen
    Patent number: D966411
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: October 11, 2022
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventor: Shinya Hamamatsu