Patents by Inventor Youhei Kaetsu

Youhei Kaetsu 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).

  • Patent number: 7185400
    Abstract: A top end stop of a slide fastener is attached to fastener stringers on a box pin side, and has a first side face opposing a guide column of a slider and a second side face on an opposite side. The first side face has first and second opposing side faces intersecting at an angle of 140° to 150°, and an interval A between the first opposing side face and the second side face being larger than a width C of an element aisle of the slider. An interval B between the second opposing side face and the second side face being equal to or smaller than the width C. A cut-out is provided as a stopper at a position on the second side face at a width E from the first opposing side face.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: March 6, 2007
    Assignee: YKK Corporation
    Inventors: Naoyuki Himi, Youhei Kaetsu
  • Patent number: 7150080
    Abstract: A concealed type slide fastener comprises two fastener tapes having their opposed edges folded thereon; two rows of fastener elements mounted on the folded edges; a top end stop mounted a fastener element row; and a slider movable along the element rows. The slider 1 has a slider body and a guidepost mounted on the body to define therewith a guide channel through which the element rows run. The guidepost has a sliding surface formed on each side and an overhanging element-guiding portion extending from the upper end of the sliding surface. The concealed type slide fastener further includes means for preventing contact between the element-guiding portion and a corner of the top end stop which faces the element-guiding portion.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: December 19, 2006
    Assignee: YKK Corporation
    Inventor: Youhei Kaetsu
  • Publication number: 20050060847
    Abstract: An opening or inverse opening device is attached to a pair of fastener stringers, a top end stop is attached to the stringers on a box pin side, an opposing side face opposing a guide column is comprised of a first and second opposing side faces intersecting at an angle of 140° to 150°. An interval A between the first opposing side face and an opposite side face is larger than a width C of an element aisle, and an interval B between the second opposing side face and the opposite side face is equal to or smaller than the width C. A cut-out is provided as a stopper at a position on the opposite side face by the width C from the first opposing side face. By tilting the top end stop in a direction determined on whether the inclined second opposing side face is disposed on upper or lower side of the top end stop when pulling out, the slider can be removed.
    Type: Application
    Filed: September 1, 2004
    Publication date: March 24, 2005
    Inventors: Naoyuki Himi, Youhei Kaetsu
  • Publication number: 20040117952
    Abstract: A concealed type slide fastener comprises two fastener tapes having their opposed edges folded thereon; two rows of fastener elements mounted on the folded edges; a top end stop mounted a fastener element row; and a slider movable along the element rows. The slider 1 has a slider body and a guidepost mounted on the body to define therewith a guide channel through which the element rows run. The guidepost has a sliding surface formed on each side and an overhanging element-guiding portion extending from the upper end of the sliding surface. The concealed type slide fastener further includes means for preventing contact between the element-guiding portion and a corner of the top end stop which faces the element-guiding portion.
    Type: Application
    Filed: November 4, 2003
    Publication date: June 24, 2004
    Inventor: Youhei Kaetsu
  • Patent number: 6704975
    Abstract: A separable bottom end stop for a concealed slide fastener, wherein reinforcement portions for reinforcing bent edge portions of a fastener tape are molded integrally with a box pin and a separable pin using resin, such that the reinforcement portions are swollen from a top surface of the tape, while the reinforcement portion on the box pin side is formed such that a bottom end thereof is in the same plane as the box pin. A front end of the reinforcement portion on the separable pin side has a protruded portion being protruded in parallel to the separable pin and a box has an L-shaped engaging portion and a contact portion provided on a surface thereof. When the box pin is inserted into and fixed to the box and the separable pin is inserted into the box, the protruded portion makes contact with the engaging portion.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: March 16, 2004
    Assignee: YKK Corporation
    Inventors: Satoshi Matsumoto, Kenji Yuki, Shigeyoshi Takazawa, Youhei Kaetsu
  • Publication number: 20030115725
    Abstract: A separable bottom end stop for a concealed slide fastener, wherein reinforcement portions for reinforcing bent edge portions of a fastener tape are molded integrally with a box pin and a separable pin using resin, such that the reinforcement portions are swollen from a top surface of the tape, while the reinforcement portion on the box pin side is formed such that a bottom end thereof is in the same plane as the box pin. A front end of the reinforcement portion on the separable pin side has a protruded portion being protruded in parallel to the separable pin and a box has an L-shaped engaging portion and a contact portion provided on a surface thereof. When the box pin is inserted into and fixed to the box and the separable pin is inserted into the box, the protruded portion makes contact with the engaging portion.
    Type: Application
    Filed: November 8, 2002
    Publication date: June 26, 2003
    Inventors: Satoshi Matsumoto, Kenji Yuki, Shigeyoshi Takazawa, Youhei Kaetsu