Patents by Inventor Tomohiko Maeada

Tomohiko Maeada 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).

  • Vehicle driving apparatus
    Patent number: 6870336
    Abstract: A drive unit for vehicles prevents the rise of temperature of a high-pressure battery or condenser and assists the vehicle engine using a motor activated by an electric current supplied from the battery. The drive unit includes a battery temperature sensor and battery ammeter sensor, and defines the permissible current value of input-and-output current, which is limit of a current value to be inputted-and-outputted with respect to the battery, based on the difference between the battery temperature and the upper limit. When the battery temperature exceeds the threshold temperature, the permissible current value is set. Moreover, when the exchanged current value of the output-and-input current exceeds the permissible current value, the motor gradually decreases the output command value.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: March 22, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Murakami, Naoki Imai, Morio Kayano, Tomohiko Maeada
  • Vehicle driving apparatus
    Publication number: 20030169001
    Abstract: The present invention aims at providing a drive unit for vehicles, which can prevent the rise of temperature of a high-pressure battery (condenser).
    Type: Application
    Filed: March 28, 2003
    Publication date: September 11, 2003
    Inventors: Hiroshi Murakami, Naoki Imai, Morio Kayano, Tomohiko Maeada