Patents by Inventor Yasuji Sakamoto

Yasuji Sakamoto 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).

  • Common rail for diesel engine
    Patent number: 7318418
    Abstract: A common rail a diesel engine includes a branching connection body firmly fixed on common rail body by friction welding. A fronting face of the branching connection body to be fixed on the common rail body by friction welding is in the shape of a cone whose center part is slightly projected and whose peripheral part is a gentle cone face.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: January 15, 2008
    Assignee: Usui Kokusai Sangyo Kaisha Limited
    Inventors: Shoichiro Usui, Masayoshi Usui, Yasuji Sakamoto, Eiji Watanabe, Yasuaki Hashimoto
  • Common rail for diesel engine
    Publication number: 20060169253
    Abstract: A common rail a diesel engine includes a branching connection body firmly fixed on common rail body by friction welding. A fronting face of the branching connection body to be fixed on the common rail body by friction welding is in the shape of a cone whose center part is slightly projected and whose peripheral part is a gentle cone face.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 3, 2006
    Applicant: Usui Kokusai Sangyo Kaisha Limited
    Inventors: Shoichiro Usui, Masayoshi Usui, Yasuji Sakamoto, Eiji Watanabe, Yasuaki Hashimoto