Patents by Inventor Hiroaki Tooyama

Hiroaki Tooyama 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).

  • Damping device
    Patent number: 7866003
    Abstract: A buffer which can achieve a buffering effect corresponding to the speed of a sliding door is provided. Corresponding to the abutment force of an engagement pin 3 which is on a sliding door 2 with respect to a retaining recessed portion 67 of a hook body 61 which is slidably provided in a case body, an engagement stepped portion 71 of the hook body 61 presses a pressing member 44, and a brake pad 47 of the pressing member 44 and a brake pad 39 of a slider 31 come into sliding contact with a brake plate 28.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: January 11, 2011
    Assignee: K. K. Murakoshi Seikoh
    Inventor: Hiroaki Tooyama
  • Damping Device
    Publication number: 20080244862
    Abstract: A buffer which can achieve a buffering effect corresponding to the speed of a sliding door is provided. Corresponding to the abutment force of an engagement pin 3 which is on a sliding door 2 with respect to a retaining recessed portion 67 of a hook body 61 which is slidably provided in a case body, an engagement stepped portion 71 of the hook body 61 presses a pressing member 44, and a brake pad 47 of the pressing member 44 and a brake pad 39 of a slider 31 come into sliding contact with a brake plate 28.
    Type: Application
    Filed: October 15, 2004
    Publication date: October 9, 2008
    Applicant: K.K. MURAKOSHI SEIKOH
    Inventor: Hiroaki Tooyama