Patents by Inventor Koanho Choi

Koanho Choi 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: 10304646
    Abstract: The present invention relates to an auxiliary relay for an electromagnetic contactor, the relay including magnet members provided on both sides of a moving member, and first and second conductive members provided on both sides of a frame, whereby an ON or OFF state of the first and second conductive members can be controlled according to the magnet members, in response to a movement of the moving member, so as to configure various contact circuits, such as 1a 1b contact circuit, 2a contact circuit, 2b contact circuit and the like, for the electromagnetic contactor.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: May 28, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Koanho Choi
  • Publication number: 20180218863
    Abstract: The present invention relates to an auxiliary relay for an electromagnetic contactor, the relay including magnet members provided on both sides of a moving member, and first and second conductive members provided on both sides of a frame, whereby an ON or OFF state of the first and second conductive members can be controlled according to the magnet members, in response to a movement of the moving member, so as to configure various contact circuits, such as 1a 1b contact circuit, 2a contact circuit, 2b contact circuit and the like, for the electromagnetic contactor.
    Type: Application
    Filed: July 13, 2017
    Publication date: August 2, 2018
    Applicant: LSIS CO., LTD.
    Inventor: Koanho CHOI
  • Publication number: 20170236668
    Abstract: Disclosed embodiments relate to an auxiliary relay of an electronic contactor. In some embodiments, an auxiliary relay has its conducting state controlled by a plurality of lead switches, in a non-exposed state of contact parts to the outside. This may prevent dust or foreign materials from clinging to the contact parts.
    Type: Application
    Filed: August 2, 2016
    Publication date: August 17, 2017
    Inventor: Koanho Choi
  • Patent number: 9734970
    Abstract: Disclosed embodiments relate to an auxiliary relay of an electronic contactor. In some embodiments, an auxiliary relay has its conducting state controlled by a plurality of lead switches, in a non-exposed state of contact parts to the outside. This may prevent dust or foreign materials from clinging to the contact parts.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: August 15, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Koanho Choi