Patents by Inventor Masaki Dogami

Masaki Dogami 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).

  • PISTON ROD MANUFACTURING METHOD
    Publication number: 20120160899
    Abstract: A piston rod manufacturing method for manufacturing a piston rod by joining together respective end surfaces of a rod main body and a rod head, includes a first step of hollowing out respective axial center portions of the rod main body and the rod head from the respective end surfaces thereof in order to remove impurities caused by center segregation, and a second step of joining together the respective end surfaces of the rod main body and the rod head by friction welding.
    Type: Application
    Filed: June 7, 2010
    Publication date: June 28, 2012
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventors: Masaki Dogami, Minoru Tamai, Kazuo Ueno, Mineo Tanahashi