Patents by Inventor Junichi MARUI

Junichi MARUI 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).

  • Cutting tool and cutting method
    Patent number: 10293415
    Abstract: A shaft portion and a blade portion provided on a side surface of the shaft portion are included, and the blade portion includes cutting blades arranged in a plurality of lines on a side surface of the shaft portion along a peripheral direction, and arranged in a plurality of stages in an extending direction of a shaft center of the shaft portion in each line. Further, the cutting blade has a radial-direction clearance angle, a tip end-side clearance angle, and a base end-side clearance angle.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: May 21, 2019
    Assignees: NAGOYA INSTITUTE OF TECHNOLGY, SUMITOMO ELECTRIC INDUSTRIES, LTD., DMG MORI CO., LTD., Mitsubishi Heavy Industries Aero Engines, Ltd.
    Inventors: Makoto Yamasaki, Shiro Nagami, Junichi Marui, Yoshiki Nishioka, Fumihiro Itoigawa, Kiichi Meguro, Yohei Oda
  • CUTTING TOOL AND CUTTING METHOD
    Publication number: 20170266739
    Abstract: A shaft portion and a blade portion provided on a side surface of the shaft portion are included, and the blade portion includes cutting blades arranged in a plurality of lines on a side surface of the shaft portion along a peripheral direction, and arranged in a plurality of stages in an extending direction of a shaft center of the shaft portion in each line. Further, the cutting blade has a radial-direction clearance angle, a tip end-side clearance angle, and a base end-side clearance angle.
    Type: Application
    Filed: March 14, 2017
    Publication date: September 21, 2017
    Inventors: Makoto YAMASAKI, Shiro NAGAMI, Junichi MARUI, Yoshiki NISHIOKA, Fumihiro ITOIGAWA, Kiichi MEGURO, Yohei ODA