Patents by Inventor Naoyuki OOHATA

Naoyuki OOHATA 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: 11211858
    Abstract: An object of the present invention is to provide a linear motor and a compressor which are effective against a non-fixed structure in which end portions of a resonant spring are not fixed and are capable of restraining loads in an up-down direction and a left-right direction which act on a slider. A linear motor includes a slider (2) which is driven in a first direction, a resonance spring (400) which is capable of vibrating in the first direction, and a permanent magnet (210) which is provided at the slider (2) and is magnetized in a second direction perpendicular to the first direction. The linear motor includes a bearing (480) that is movable against both forces of a force in the second direction and a force in a third direction perpendicular to the first direction and the second direction, and an elastic-body support member (450) which connects the resonant spring (400) and the bearing (480) to each other.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: December 28, 2021
    Assignees: HITACHI ASTEMO, LTD., HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    Inventors: Masaki Koyama, Shuhei Nagata, Naoyuki Oohata, Kan Kobayashi, Yoshinori Kawai
  • Publication number: 20190356207
    Abstract: An object of the present invention is to provide a linear motor and a compressor which are effective against a non-fixed structure in which end portions of a resonant spring are not fixed and are capable of restraining loads in an up-down direction and a left-right direction which act on a slider. A linear motor includes a slider (2) which is driven in a first direction, a resonance spring (400) which is capable of vibrating in the first direction, and a permanent magnet (210) which is provided at the slider (2) and is magnetized in a second direction perpendicular to the first direction. The linear motor includes a bearing (480) that is movable against both forces of a force in the second direction and a force in a third direction perpendicular to the first direction and the second direction, and an elastic-body support member (450) which connects the resonant spring (400) and the bearing (480) to each other.
    Type: Application
    Filed: October 25, 2017
    Publication date: November 21, 2019
    Applicants: Hitachi Automotive Systems, Ltd., Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Masaki KOYAMA, Shuhei NAGATA, Naoyuki OOHATA, Kan KOBAYASHI, Yoshinori KAWAI