Patents by Inventor Hideo Akazawa

Hideo Akazawa 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: 20230136359
    Abstract: Provided is a thermoplastic resin composite material or a thermoplastic resin composite material particle that includes cellulose fibers, can be used to obtain a molded article excellent in mechanical properties such as strength, and is so excellent in fluidity during melting as to be excellent in molding processability. A thermoplastic resin composite material including cellulose fibers, a compatibilizer, and a thermoplastic resin, wherein the cellulose fibers substantially include only fibers having a fiber diameter of 1 to 50 ?m and a fiber length of 10 to 400 ?m, a composition ratio by mass of the cellulose fibers to the thermoplastic resin is 10:90 to 80:20, and arbitrary 10 sections of the thermoplastic resin composite material have a standard deviation of a proportion of an area occupied by the cellulose fibers per predetermined area, the standard deviation being 15% or less.
    Type: Application
    Filed: June 15, 2021
    Publication date: May 4, 2023
    Inventors: Nobuhiro KUBOTA, Kiyoshi IWAMOTO, Masayoshi SANO, Hiroaki KAWAGUCHI, Yudai KIMURA, Hideo AKAZAWA
  • Patent number: 4680970
    Abstract: A pressure measuring apparatus comprising a diaphragm to which pressure to be measured is applied and a resilient vibrator connected to the diaphragm, which acts to produce a signal based on its natural frequency relative to the pressure, wherein the diaphragm comprises a peripheral circumferential portion, a central fixing portion and a non-planar intermediate portion therebetween, with the central portion being connected to the vibrator and having its edge disposed at a non-perpendicular angle with respect to the vibrator area to which it is connected. The apparatus eliminates adverse influences due to initial distortion, hysteresis of the diaphragm and produces accurate measurements.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: July 21, 1987
    Assignee: Yokogawa Hokushin Electric Corporation
    Inventors: Toshitsugu Ueda, Fusao Kohsaka, Daisuke Yamazaki, Hideo Akazawa