Patents by Inventor Masashi Omoto

Masashi Omoto 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).

  • Engine having centralized mass
    Patent number: 7159558
    Abstract: An engine is constructed such that respective centers of gravity of a crank shaft, a balancer shaft and a cylinder are positioned close to one another and the mass of the engine is thus centralized. The engine includes a shaft center of a cylinder that is offset to one side with respect to a shaft center of a crank shaft, and a balancer shaft is disposed on a side of the engine where the cylinder shaft center is offset with respect to a first parallel line which intersects with the crank shaft center and extends substantially parallel to the cylinder shaft center.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: January 9, 2007
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Mamoru Suzuki, Masashi Omoto, Tatsuya Masuda
  • Engine having centralized mass
    Publication number: 20060005799
    Abstract: An engine is constructed such that respective centers of gravity of a crank shaft, a balancer shaft and a cylinder are positioned close to one another and the mass of the engine is thus centralized. The engine includes a shaft center of a cylinder that is offset to one side with respect to a shaft center of a crank shaft, and a balancer shaft is disposed on a side of the engine where the cylinder shaft center is offset with respect to a first parallel line which intersects with the crank shaft center and extends substantially parallel to the cylinder shaft center.
    Type: Application
    Filed: July 1, 2005
    Publication date: January 12, 2006
    Inventors: Mamoru Suzuki, Masashi Omoto, Tatsuya Masuda