Patents by Inventor Kazushige HAYAKAWA

Kazushige HAYAKAWA 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).

  • Centrifugal separator including noncontact seal and noncontact torque transfer mechanism, and centrifugal separation system containing the same
    Patent number: 11260403
    Abstract: A centrifugal separator includes a rotating body driving and sealing structure in which a hermetically sealed space is formed between a rotating body and an outer case by sealing the inside and outside using a noncontact seal during rotation of the rotating body, in an airtight manner. A rotation coupling unit is provided at the upper end of a centrifugal cylinder, and even when the centrifugal cylinder is deformed during use causing an internal fluid to leak through a fitting portion of a bottom member to the centrifugal cylinder, the fluid leaks in the hermetically sealed space so that the driving system or the like is not contaminated.
    Type: Grant
    Filed: December 16, 2017
    Date of Patent: March 1, 2022
    Assignee: Mitsui Electric Co., Ltd.
    Inventor: Kazushige Hayakawa
  • CENTRIFUGAL SEPARATOR AND CENTRIFUGAL SEPARATION SYSTEM CONTAINING THE SAME
    Publication number: 20190240680
    Abstract: A centrifugal separator includes a rotating body driving and sealing structure in which a hermetically sealed space is formed between a rotating body and an outer case by sealing the inside and outside using a noncontact seal during rotation of the rotating body, in an airtight manner. A rotation coupling unit is provided at the upper end of a centrifugal cylinder, and even when the centrifugal cylinder is deformed during use causing an internal fluid to leak through a fitting portion of a bottom member to the centrifugal cylinder, the fluid leaks in the hermetically sealed space so that the driving system or the like is not contaminated.
    Type: Application
    Filed: December 16, 2017
    Publication date: August 8, 2019
    Inventor: Kazushige HAYAKAWA