Patents by Inventor Hiroto Tujishita

Hiroto Tujishita 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).

  • EXHAUST-VALVE LIFTING AND LOWERING CAM, TURBOCHARGED FOUR STROKE ENGINE AND VALVE TIMING CONTROL METHOD
    Publication number: 20120042649
    Abstract: Providing a cam for lifting and lowering the exhaust valve so that the exhaust gas return-flow from one cylinder to another cylinder can be realized as greatly as possible, wherein the pistons and the exhaust valves do not come in contact with each other, and the valve control method does not depend on an electronic control approach.
    Type: Application
    Filed: August 17, 2009
    Publication date: February 23, 2012
    Inventors: Takashi Kaneko, Hiroto Tujishita