Patents by Inventor Eizi Hiramatsu

Eizi Hiramatsu 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).

  • Device for preventing evaporative fuel loss
    Patent number: 4308840
    Abstract: A device for preventing evaporative fuel loss comprising a casing which accommodates fuel gas absorbing agents. The casing is divided into three slender compartments by means of two partitions. A flow-in chamber is disposed at the entrance of the first compartment and is communicated with a fuel tank. Two dispersing chambers communicate the outlet of the first compartment and the inlet of the second compartment, and the outlet of the second compartment and the inlet of the third compartment, respectively. An atmospheric chamber is disposed at the exit of the third compartment and has an atmospheric port for flowing in purge air and for discharging filtered and clean air.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: January 5, 1982
    Assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Nippon Denso Kabushiki Kaisha
    Inventors: Eizi Hiramatsu, Yasushi Nakagawa, Hidenori Sato