Patents by Inventor Tamura Yasuji

Tamura Yasuji 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).

  • Control device for automotive air conditioning system
    Patent number: 4815658
    Abstract: A control device which includes a heater core for heating the air, temperature sensors for detecting the temperature of the air, air mix dampers for adjusting the volume of the air through passing the heater core, a water valve for adjusting the volume of the water which is used for cooling an automobile engine, an actuator for operating the air mix damper and the water valve and a control unit is disclosed. The control unit compares a desired position, and predetermined positions of an opening angle of the actuator with each other. The temperature of the air which is blown out from an automotive air conditioning system can thereby be controlled in accordance with the compared results.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: March 28, 1989
    Assignee: Sanden Corporation
    Inventors: Akabane Hidemitsu, Hoshino Seiichi, Tamura Yasuji, Isobe Toshimi