Patents by Inventor Mizuho Shimizu

Mizuho Shimizu 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).

  • Rotor, rotary electric machine, and compressor
    Patent number: 10931158
    Abstract: A plurality of magnet holes are arranged in a circumferential direction. Void portions are provided at both ends in the circumferential direction of each magnet hole. Flow holes penetrating in the axial direction are formed, between the magnet holes adjacent in the circumferential direction, on an inner side in a radial direction with respect to the magnet holes. Each core has: first groove portions via which the void portions and the flow holes communicate with each other; and second groove portions via which the void portions and the outer circumferences of the cores communicate with each other and which serve as discharge ports. The end plates have: first holes through which the flow holes are exposed and which serve as intake ports; and tab portions which are located on downstream sides in a rotation direction of the first holes and which assist air intake.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: February 23, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuhiro Shono, Shinichi Ito, Yuki Tamura, Kanji Shinkawa, Mizuho Shimizu
  • Rotor, rotary electric machine, and compressor
    Patent number: 10892655
    Abstract: A plurality of magnet holes are arranged in a circumferential direction. Void portions are provided at both ends in the circumferential direction of each magnet hole. Flow holes penetrating in the axial direction are formed, between the magnet holes adjacent in the circumferential direction, on an inner side in a radial direction with respect to the magnet holes. Each core has: first groove portions via which the void portions and the flow holes communicate with each other; and second groove portions via which the void portions and the outer circumferences of the cores communicate with each other and which serve as discharge ports. The end plates have: first holes through which the flow holes are exposed and which serve as intake ports; and tab portions which are located on downstream sides in a rotation direction of the first holes and which assist air intake.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: January 12, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuhiro Shono, Shinichi Ito, Yuki Tamura, Kanji Shinkawa, Mizuho Shimizu
  • ROTOR, ROTARY ELECTRIC MACHINE, AND COMPRESSOR
    Publication number: 20190190337
    Abstract: A plurality of magnet holes are arranged in a circumferential direction. Void portions are provided at both ends in the circumferential direction of each magnet hole. Flow holes penetrating in the axial direction are formed, between the magnet holes adjacent in the circumferential direction, on an inner side in a radial direction with respect to the magnet holes. Each core has: first groove portions via which the void portions and the flow holes communicate with each other; and second groove portions via which the void portions and the outer circumferences of the cores communicate with each other and which serve as discharge ports. The end plates have: first holes through which the flow holes are exposed and which serve as intake ports; and tab portions which are located on downstream sides in a rotation direction of the first holes and which assist air intake.
    Type: Application
    Filed: September 13, 2017
    Publication date: June 20, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazuhiro Shono, Shinichi Ito, Yuki Tamura, Kanji Shinkawa, Mizuho Shimizu
  • Novel neutral glucoamylase and method for its production
    Patent number: 4254225
    Abstract: Process for the production of a glucoamylase having a pH optimum at about 6.0 to 6.5 by a strain of Stachybotrys and the glucoamylase produced thereby.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: March 3, 1981
    Assignee: CPC International Inc.
    Inventors: Masaki Tamura, Mizuho Shimizu, Minoru Tago
  • Highly thermostable glucoamylase and process for its production
    Patent number: 4247637
    Abstract: Process for the production of a thermostable glucoamylase by a strain of Talaromyces and the glucoamylase produced thereby.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: January 27, 1981
    Assignee: CPC International Inc.
    Inventors: Masaki Tamura, Mizuho Shimizu, Minoru Tago
  • Highly thermostable glucoamylaseand process for its production
    Patent number: RE32153
    Abstract: Process for the production of a thermostable glucoamylase by a strain of Talaromyces and the glucoamylase produced thereby.
    Type: Grant
    Filed: August 2, 1985
    Date of Patent: May 20, 1986
    Assignee: CPC International Inc.
    Inventors: Masaki Tamura, Mizuho Shimizu, Minoru Tago