Patents by Inventor Osame Abe

Osame Abe 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).

  • Electronic type air/fuel ratio control system
    Patent number: 4335689
    Abstract: An electronic type air/fuel ratio control system for use in gasoline engines comprises an accelerator, a detector of the manipulation angle of the accelerator, a shunt conduit by-passing a throttle valve, an air by-pass valve exposed in the shunt conduit for controlling flow rate of by-pass air, and a control circuit. The control circuit is responsive to the output of the accelerator manipulation angle detector and generates a control signal for the air by-pass valve, whereby the air/fuel ratio can be controlled with high accuracy when the flow rate of air is low.
    Type: Grant
    Filed: May 6, 1980
    Date of Patent: June 22, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Osame Abe, Seiji Suda, Toshio Furuhashi