Patents by Inventor Matsuo Yamaguchi

Matsuo Yamaguchi 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).

  • Overlock sewing machine
    Patent number: 7458326
    Abstract: An overlock sewing machine including a main shaft rotated by a sewing machine motor; a vertically moving sewing needle and an overlooper and an underlooper respectively driven by the rotation of the main shaft; a single looper drive shaft forming overlock stitches in cooperation with the overlooper, the underlooper and the sewing needle and rotated by the rotation of the main shaft, shaft line thereof being arranged perpendicularly to the main shaft; and a swing generating member having first and second swing generating portions fixed to the looper drive shaft for swinging the overlooper and the underlooper respectively; a first and second swing link mechanisms, both of which extend perpendicularly to the looper drive shaft, swinging the overlooper and the underlooper by conveying the drive force generated by the first and second sewing generating portions.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: December 2, 2008
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Matsuo Yamaguchi, Hiroki Hayashi
  • Overlock sewing machine
    Publication number: 20060191453
    Abstract: An overlock sewing machine including a main shaft rotated by a sewing machine motor; a vertically moving sewing needle and an overlooper and an underlooper respectively driven by the rotation of the main shaft; a single looper drive shaft forming overlock stitches in cooperation with the overlooper, the underlooper and the sewing needle and rotated by the rotation of the main shaft, shaft line thereof being arranged perpendicularly to the main shaft; and a swing generating member having first and second swing generating portions fixed to the looper drive shaft for swinging the overlooper and the underlooper respectively; a first and second swing link mechanisms, both of which extend perpendicularly to the looper drive shaft, swinging the overlooper and the underlooper by conveying the drive force generated by the first and second sewing generating portions.
    Type: Application
    Filed: February 23, 2006
    Publication date: August 31, 2006
    Applicant: BROTHER KOGYO KABUSHlKI KAISHA
    Inventors: Matsuo Yamaguchi, Hiroki Hayashi