Patents by Inventor Shiro NAGAMI

Shiro NAGAMI 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).

  • LOW TOUGHNESS WORKPIECE CUTTING APPARATUS, LOW TOUGHNESS WORKPIECE MANUFACTURING METHOD AND RECORDING MEDIUM STORING LOW TOUGHNESS WORKPIECE MANUFACTURING PROGRAM
    Publication number: 20220334565
    Abstract: A low toughness workpiece cutting apparatus, a low toughness workpiece manufacturing method and a low toughness workpiece manufacturing program for predicting an occurrence of defect and/or non-occurrence of defect before a cutting process of low toughness material. A defect prediction device is provided with a storage device, a processor and an interface. The storage device stores tool data that represent physical characteristics and a shape of a tool, cutting data that represent a group of parameters of a cutting process to be performed to a workpiece by use of the tool and material data that represent physical characteristics and a shape of the workpiece. The processor performs an analysis of deformation of the workpiece due to a cutting force and an analysis of fracture due to the deformation, and performs a prediction of an occurrence of defect and/or a non-occurrence of defect of the workpiece due to the cutting process.
    Type: Application
    Filed: January 15, 2021
    Publication date: October 20, 2022
    Inventors: Yukio NAIKI, Shiro NAGAMI, Keigo MATSUNAGA, Koji MIZUTANI, Eiji SHAMOTO, Takehiro HAYASAKA, Shota YOSHINO
  • 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