Patents by Inventor Kentaro Ohno

Kentaro Ohno 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).

  • Powder molding press method of green compact for cutting insert, and powder molding press device
    Patent number: 11666966
    Abstract: A powder molding press method of a green compact for a cutting insert including: filling a molding space with raw material powder in a state where a lower punch is inserted from below into a hole portion of a die; performing preliminary molding by inserting an upper punch for preliminary molding including a preliminary molding surface having a shape different from a shape obtained by inverting the upper surface of the green compact for a cutting insert in a plane symmetry into the molding space from above such that a thick portion between the upper and lower surfaces in the direction of the insert center line is filled with more raw material powder than a thin portion therebetween, relative to a state before the step of performing the preliminary molding; and inserting an upper punch for final molding into the molding space from above to powder-molding-press the raw material powder.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 6, 2023
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kentaro Ohno, Masaru Hotta, Tomotsugu Gouda, Yoshitomo Shibuya
  • PRODUCTION METHOD AND PRODUCTION INTERMEDIATE FOR GUANOSINE-3',5'-BISDIPHOSPHATE
    Publication number: 20210094980
    Abstract: The present invention relates to a production method and a production intermediate for guanosine-3?,5?-bisdiphosphate.
    Type: Application
    Filed: February 8, 2019
    Publication date: April 1, 2021
    Inventors: Kohji SEIO, Yoshiaki MASAKI, Kentaro OHNO, Takahito TOMORI
  • POWDER MOLDING PRESS METHOD OF GREEN COMPACT FOR CUTTING INSERT, AND POWDER MOLDING PRESS DEVICE
    Publication number: 20200188997
    Abstract: A powder molding press method of a green compact for a cutting insert including: filling a molding space with raw material powder in a state where a lower punch is inserted from below into a hole portion of a die; performing preliminary molding by inserting an upper punch for preliminary molding including a preliminary molding surface having a shape different from a shape obtained by inverting the upper surface of the green compact for a cutting insert in a plane symmetry into the molding space from above such that a thick portion between the upper and lower surfaces in the direction of the insert center line is filled with more raw material powder than a thin portion therebetween, relative to a state before the step of performing the preliminary molding; and inserting an upper punch for final molding into the molding space from above to powder-molding-press the raw material powder.
    Type: Application
    Filed: May 29, 2018
    Publication date: June 18, 2020
    Inventors: Kentaro Ohno, Masaru Hotta, Tomotsugu Gouda, Yoshitomo Shibuya