Patents by Inventor Shuichi Kuwabara

Shuichi Kuwabara 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).

  • Tilt detector
    Patent number: 6706978
    Abstract: A spherical movable contact is housed in housing portions of a first case and a second case so as to be able to roll, and is to come into or go out of contact with a first fixed contact and a second fixed contact. The first case and the second case are fixed to each other so as to form an integral body in such a manner that the first fixed contact and the second fixed contact are opposed to each other. At least one of the first fixed contact and the second fixed contact is divided. The movable contact is disposed so as to roll while bridging the first fixed contact and the second fixed contact. Contact portions where the movable contact is to contact the first fixed contact and the second fixed contact assume arc shapes, respectively.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: March 16, 2004
    Assignee: Alps Electric Co., Ltd.
    Inventors: Tadashi Wagatsuma, Shuichi Kuwabara, Yoshiro Yoshida
  • Tilt detector
    Publication number: 20030196878
    Abstract: A spherical movable contact is housed in housing portions of a first case and a second case so as to be able to roll, and is to come into or go out of contact with a first fixed contact and a second fixed contact. The first case and the second case are fixed to each other so as to form an integral body in such a manner that the first fixed contact and the second fixed contact are opposed to each other. At least one of the first fixed contact and the second fixed contact is divided. The movable contact is disposed so as to roll while bridging the first fixed contact and the second fixed contact. Contact portions where the movable contact is to contact the first fixed contact and the second fixed contact assume arc shapes, respectively.
    Type: Application
    Filed: January 30, 2003
    Publication date: October 23, 2003
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Tadashi Wagatsuma, Shuichi Kuwabara, Yoshiro Yoshida