Patents by Inventor Hisashi FURUZAWA

Hisashi FURUZAWA 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).

  • Patent number: 11414300
    Abstract: A damper for elevator, and an elevator, that enable reduction of the maximum deceleration of a lifting/lowering body by suppressing deformation of a foamed body for absorbing impact. The damper for elevator includes: urethane foam having a collision surface with which a lifting/lowering body is to collide; and an outer peripheral member attached to the outer side of the side-part surface of the urethane foam and having an inner side surface bowed outward, wherein impact by collision of the lifting/lowering body is buffered by deformations of the urethane foam and the outer peripheral member.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: August 16, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yutaro Hanawa, Hisashi Furuzawa
  • Publication number: 20190084802
    Abstract: A damper for elevator, and an elevator, that enable reduction of the maximum deceleration of a lifting/lowering body by suppressing deformation of a foamed body for absorbing impact. The damper for elevator includes: urethane foam having a collision surface with which a lifting/lowering body is to collide; and an outer peripheral member attached to the outer side of the side-part surface of the urethane foam and having an inner side surface bowed outward, wherein impact by collision of the lifting/lowering body is buffered by deformations of the urethane foam and the outer peripheral member.
    Type: Application
    Filed: February 3, 2017
    Publication date: March 21, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yutaro HANAWA, Hisashi FURUZAWA
  • Patent number: 9909950
    Abstract: An inspection method and an inspection apparatus capable of readily determining the necessity of replacement of a resin shock absorber at an elevator inspection location without using a car of a rated weight. First, an indenter is pressed into a resin shock absorber for an elevator. A load of pressing the indenter into the resin shock absorber is released. A physical property value indicative of a repulsive force that causes the indenter to bounce from the resin shock absorber by releasing the load is measured. The necessity of replacement of the resin shock absorber is determined by comparing a result of the physical property value obtained by measuring the repulsive force with a reference value prepared in advance.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: March 6, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinya Naito, Hisashi Furuzawa, Michio Murai
  • Publication number: 20170138815
    Abstract: An inspection method and an inspection apparatus capable of readily determining the necessity of replacement of a resin shock absorber at an elevator inspection location without using a car of a rated weight. First, an indenter is pressed into a resin shock absorber for an elevator. A load of pressing the indenter into the resin shock absorber is released. A physical property value indicative of a repulsive force that causes the indenter to bounce from the resin shock absorber by releasing the load is measured. The necessity of replacement of the resin shock absorber is determined by comparing a result of the physical property value obtained by measuring the repulsive force with a reference value prepared in advance.
    Type: Application
    Filed: May 22, 2015
    Publication date: May 18, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shinya NAITO, Hisashi FURUZAWA, Michio MURAI