Patents by Inventor Masatsuki Matsumoto

Masatsuki Matsumoto 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).

  • Discharge device for worked material
    Patent number: 7185756
    Abstract: A discharge device for worked material is provided. The worked material produced by the press working is received on a chute arranged just below a lower die. The chute is driven to make a reciprocating motion within a substantially horizontal plane in response to a die stroke. At a moment of stopping of the forward movement of the chute, an inertia force acting on the worked material from the chute is greater than a static frictional force. Or otherwise, a force taking effect upon starting of a backward movement of the chute is greater than the static frictional force. Consequently, the worked material is due to be discharged from the chute.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: March 6, 2007
    Assignee: Matsumoto Industry Co., Ltd.
    Inventors: Masatsuki Matsumoto, Shinsuke Matsumoto
  • Discharge device for worked material
    Publication number: 20060060453
    Abstract: A discharge device for worked material is provided. The worked material produced by the press working is received on a chute arranged just below a lower die. The chute is driven to make a reciprocating motion within a substantially horizontal plane in response to a die stroke. At a moment of stopping of the forward movement of the chute, an inertia force acting on the worked material from the chute is greater than a static frictional force. Or otherwise, a force taking effect upon starting of a backward movement of the chute is greater than the static frictional force. Consequently, the worked material is due to be discharged from the chute.
    Type: Application
    Filed: October 24, 2003
    Publication date: March 23, 2006
    Applicant: MASATSUKI MATSUMOTO AND SHINSUKE MATSUMOTO
    Inventors: Masatsuki Matsumoto, Shinsuke Matsumoto