Patents by Inventor Yoshitaka Kuroyanagi

Yoshitaka Kuroyanagi 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).

  • Automobile window glass equipped with thermal defogging wires
    Patent number: 4155090
    Abstract: Automobile window glass having a pattern of thermal defogging wires therein. The pattern of thermal defogging wires further includes a low impedance branch line coupled to the power feed point of the thermal defogging wires whereby the noise current in the pattern of thermal defogging wires is suppressed.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: May 15, 1979
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Yoshitaka Kuroyanagi, Tatsuo Teratani
  • Noise suppression device
    Patent number: 4137501
    Abstract: A noise suppression device for noisy transmission wires in a motor vehicle including a first low impedance element connected to an arbitrarily chosen point on the noisy wire and a second low impedance element connected at the nodal point of the standing wave of the noise current on the noisy wire.
    Type: Grant
    Filed: September 2, 1976
    Date of Patent: January 30, 1979
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Yoshitaka Kuroyanagi, Tatsuo Teratani
  • Vehicle alternator system with noise filter
    Patent number: 4081740
    Abstract: An electric power source apparatus for vehicles comprises a dynamo and a voltage regulator which includes mechanical relays, the switching of which causes high frequency noises, which in turn adversely affect a radio receiver set mounted on the vehicle. To eliminate the high frequency noises a noise absorbing capacitor is disposed between the dynamo and the voltage regulator.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: March 28, 1978
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Tatsuo Teratani, Yoshitaka Kuroyanagi
  • Wire transmission noise suppressor for a vehicle
    Patent number: 4056782
    Abstract: A noise suppressor for a vehicle including a branch circuit of low impedance connected to an electrical circuit through which a high frequency current passes in a standing wave. The branch circuit is connected at approximately a point corresponding to a node of the standing wave, and is of a length related to the wavelength of the current.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: November 1, 1977
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Takayuki Makino, Teruo Yamanaka, Yoshitaka Kuroyanagi, Tatsuo Teratani