Patents by Inventor Itaru Yanokura

Itaru Yanokura 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).

  • Cylindrical rod and method for manufacturing the same
    Patent number: 7610938
    Abstract: A cylindrical rod 20 is formed by bending sheet metal 10 so as to bond together a pair of edges 12 and 14 of the sheet metal 10. The cylindrical rod 20 includes therein (i) convex portions 16 each of which protrudes from the edge 12 and includes a sub-portion whose width is larger at a side thereof more distant from the edge 12 than at a side thereof less distant from the edge 12, and (ii) concave portions 18 which are formed on the edge 14, have a shape complementary to the shape of the convex portions 16, and are fitted into the convex portions 16. A cylindrical rod which has high circularity and high linearity, in other words, which hardly has vertical and horizontal curves can be provided.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: November 3, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Itaru Yanokura, Hiroshi Hashizume, Norio Nomura, Nagamitsu Takashima
  • CYLINDORICAL ROD AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20080121008
    Abstract: A cylindrical rod 20 is formed by bending sheet metal 10 so as to bond together a pair of edges 12 and 14 of the sheet metal 10. The cylindrical rod 20 includes therein (i) convex portions 16 each of which protrudes from the edge 12 and includes a sub-portion whose width is larger at a side thereof more distant from the edge 12 than at a side thereof less distant from the edge 12, and (ii) concave portions 18 which are formed on the edge 14, have a shape complementary to the shape of the convex portions 16, and are fitted into the convex portions 16. A cylindrical rod which has high circularity and high linearity, in other words, which hardly has vertical and horizontal curves can be provided.
    Type: Application
    Filed: September 17, 2007
    Publication date: May 29, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Itaru YANOKURA, Hiroshi HASHIZUME, Norio NOMURA, Nagamitsu TAKASHIMA