Patents by Inventor Yasuto Fujiwara

Yasuto Fujiwara 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).

  • Door latch
    Patent number: 6499775
    Abstract: A door latch 100 comprises a housing 110 fixed to a hinged door, and a knob 140 is slidably guided within a slit 112 formed to the housing 110. A bolt 130 inserted to a bolt guide 120 is fixed to the knob 140 using a screw 160. The sliding movement of said knob 140 is limited by both end portions 112a and 112b of a slit 112, against which said knob 140 collides. A plastic damper 150 is equipped to the position of collision for muffling collision noise. A ball 136 providing detent for said bolt is also made of plastic, providing a further muffling effect.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: December 31, 2002
    Assignee: Jamco Corporation
    Inventor: Yasuto Fujiwara
  • Door latch
    Publication number: 20010019212
    Abstract: A door latch 100 comprises a housing 110 fixed to a hinged door, and a knob 140 is slidably guided within a slit 112 formed to the housing 110. A bolt 130 inserted to a bolt guide 120 is fixed to the knob 140 using a screw 160. The sliding movement of said knob 140 is limited by both end portions 112a and 112b of a slit 112, against which said knob 140 collides. A plastic damper 150 is equipped to the position of collision for muffling collision noise. A ball 136 providing detent for said bolt is also made of plastic, providing a further muffling effect.
    Type: Application
    Filed: March 2, 2001
    Publication date: September 6, 2001
    Applicant: Jamco Corporation
    Inventor: Yasuto Fujiwara