Patents by Inventor Tokuhiro Tanaka

Tokuhiro Tanaka 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: 6320342
    Abstract: A sunroof controlling device for controlling a sunroof lid in sliding and tilting directions without using a mechanical position switch, which is possible to automatically reset count value of the position counter of the sunroof lid according to an appearance of the error in the count value and comprises first and second switches, an actuator having an electric motor and an output shaft to be connected with the sunroof lid, and a control unit including first and second rotation signal generating means for generating first and second signals in response to rotation of an armature shaft of the electric motor, an output shaft rotation signal generating means and a roof position counting means for counting the signals generated from the first, second and output shaft rotation signal generating means, and the control unit executes an initial mode for resetting count value of the roof position counter when the count value is not a predetermined range.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: November 20, 2001
    Assignee: Jidosha Denki Kogyo Kabushiki Kaisha
    Inventors: Nobuo Yoshioka, Hiroyuki Funaki, Kenichi Niki, Tokuhiro Tanaka
  • Patent number: 6297606
    Abstract: A sunroof controlling device for controlling a sunroof lid in sliding and tilting directions without using a mechanical position switch, which comprises and actuator having an electric motor and an output shaft to be connected with the sunroof lid, a switch for generating a command signal, and a control unit including an armature shaft rotation signal generating means, an output shaft rotation signal generating means, and a counting means for counting the signals generated from the armature shaft rotation signal generating means and the output shaft rotation signal generating means, and the control unit starts current supply to the electric motor of the actuator in response to the command signal and interrupts the current supply according to the count value of the counting means.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: October 2, 2001
    Assignee: Jidosha Denki Kogyo Kabushiki Kaisha
    Inventors: Nobuo Yoshioka, Hiroyuki Funaki, Kenichi Niki, Tokuhiro Tanaka