Patents by Inventor Yoshikazu Hamada

Yoshikazu Hamada 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).

  • Publication number: 20150335107
    Abstract: There is provided a pull tab post-attaching slider for a slide fastener. An upper blade of a slider body includes a first mounting portion. A free end portion of a pull tab attachment rod includes a second mounting portion. A blocking member includes a first mounted portion mounted on the first mounting portion and a second mounted portion mounted on the second mounting portion. One of the first mounting portion and the first mounted portion includes a first dovetail groove portion and the other includes a first fitting engagement portion having a first fitting engagement structure fitted into the first dovetail groove portion. One of the second mounting portion and the second mounted portion includes a second dovetail groove portion and the other includes a second fitting engagement portion having a second fitting engagement structure fitted into the second dovetail groove portion.
    Type: Application
    Filed: November 12, 2012
    Publication date: November 26, 2015
    Inventors: Yoshikazu Hamada, Keiichi Keyaki
  • Patent number: 9095192
    Abstract: A slider for a slide fastener includes a slider main body, a pull tab, a stopper hook having one end configured to be engaged with fastener elements to obstruct the slider main body from moving, a spring portion, a cam portion configured to urge the pull tab in a direction in which the pull tab returns to a lay-down state where the pull tab is laid down toward one side of the slider main body using an elastic force of the spring portion when the pull tab pivots from the lay-down state to an erected state, and regulating portions configured to obstruct the pull tab from pivoting further from the erected state so that the pull tab is obstructed from pivoting to the other side of the slider main body.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: August 4, 2015
    Assignee: YKK Corporation
    Inventor: Yoshikazu Hamada
  • Patent number: 9072347
    Abstract: A slider for a slide fastener includes a stopper mechanism formed for “forward use,” in which the surface where coiled fastener elements are attached on a fastener tape is the front surface, can be used for “reverse use,” in which the surface where the coiled fastener elements are attached on the fastener tape is the back surface. The inner surface of the lower blade of the slider body of a slider has a protrusion that extends in the forward-reverse direction from a guiding bar towards a posterior opening. The protrusion has a first horizontal upper surface on the guide bar end of the protrusion that is highest and a second upper surface on the posterior opening end that is lower than the first upper surface.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: July 7, 2015
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Keiichi Keyaki, Yohei Miyazaki
  • Patent number: 8991017
    Abstract: There is provided a slider for a slide fastener. A cover member is attached to a body in a cantilever manner to cover a pillar portion and a lock member. An opening/closing member slidably formed between the cover member and the body is configured to open and close an insertion gap. The cover member has a first surface which is formed on the rear end portion of the cover member in substantially parallel to the body, and a second surface extending rearward and upward at a predetermined angle from a rear end portion of the first surface. The opening/closing member has a third surface which overlaps with the first surface in an upward and downward direction and is formed in substantially parallel to the first surface, and a fourth surface extending rearward and downward at a predetermined angle from a rear end portion of the third surface.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: March 31, 2015
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Keiichi Keyaki
  • Publication number: 20140041163
    Abstract: There is provided a slider for a slide fastener. A lock member is swingably supported by a pillar portion which is erected on an upper surface of a body. A cover member covers the pillar portion and the lock member from above. The lock member includes a body portion which is disposed on the upper surface of the body and a claw portion which protrudes from the body portion and enters an element guide path of the body. One side surface of the claw portion is formed with an inclined surface which causes the claw portion to be gradually tapered toward a front end of the claw portion. The other side surface of the claw portion is formed with a stepped portion which causes a plate thickness of the claw portion to be smaller than a plate thickness of the body portion.
    Type: Application
    Filed: April 27, 2011
    Publication date: February 13, 2014
    Inventors: Yoshikazu Hamada, Keiichi Keyaki
  • Publication number: 20140033484
    Abstract: There is provided a slider for a slide fastener. A cover member is attached to a body in a cantilever manner to cover a pillar portion and a lock member. An opening/closing member slidably formed between the cover member and the body is configured to open and close an insertion gap. The cover member has a first surface which is formed on the rear end portion of the cover member in substantially parallel to the body, and a second surface extending rearward and upward at a predetermined angle from a rear end portion of the first surface. The opening/closing member has a third surface which overlaps with the first surface in an upward and downward direction and is formed in substantially parallel to the first surface, and a fourth surface extending rearward and downward at a predetermined angle from a rear end portion of the third surface.
    Type: Application
    Filed: April 15, 2011
    Publication date: February 6, 2014
    Applicant: YKK Corporation
    Inventors: Yoshikazu Hamada, Keiichi Keyaki
  • Publication number: 20140013549
    Abstract: A method for manufacturing a slider for a slide fastener with an automatic stopper. A common part which includes a stopping pawl portion, a biasing portion and a cover portion and forms the automatic stopper is provided. At least two bodies selected from among a first body having a guide recess configured to guide metal teeth, a second body having a guide recess configured to guide resin teeth which are formed by injection molding, and a third body having a guide recess configured to guide teeth made of resin monofilaments are prepared. The common part is mounted on one of the bodies selected from the at least two bodies.
    Type: Application
    Filed: March 31, 2011
    Publication date: January 16, 2014
    Applicant: YKK Corporation
    Inventors: Kiyoshi Oda, Keiichi Keyaki, Yoshikazu Hamada
  • Publication number: 20130276270
    Abstract: A slider for a slide fastener includes a stopper mechanism formed for “forward use,” in which the surface where coiled fastener elements are attached on a fastener tape is the front surface, can be used for “reverse use,” in which the surface where the coiled fastener elements are attached on the fastener tape is the back surface. The inner surface of the lower blade of the slider body of a slider has a protrusion that extends in the forward-reverse direction from a guiding bar towards a posterior opening. The protrusion has a first horizontal upper surface on the guide bar end of the protrusion that is highest and a second upper surface on the posterior opening end that is lower than the first upper surface.
    Type: Application
    Filed: September 2, 2011
    Publication date: October 24, 2013
    Applicant: YKK Corportion
    Inventors: Yoshikazu Hamada, Keiichi Keyaki, Yohei Miyazaki
  • Publication number: 20130174387
    Abstract: A slider for a slide fastener includes a slider main body, a pull tab, a stopper hook having one end configured to be engaged with fastener elements to obstruct the slider main body from moving, a spring portion, a cam portion configured to urge the pull tab in a direction in which the pull tab returns to a lay-down state where the pull tab is laid down toward one side of the slider main body using an elastic force of the spring portion when the pull tab pivots from the lay-down state to an erected state, and regulating portions configured to obstruct the pull tab from pivoting further from the erected state so that the pull tab is obstructed from pivoting to the other side of the slider main body.
    Type: Application
    Filed: September 29, 2010
    Publication date: July 11, 2013
    Applicant: YKK Corportion
    Inventor: Yoshikazu Hamada
  • Patent number: D651940
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: January 10, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • Patent number: D652345
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: January 17, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • Patent number: D652346
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: January 17, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • Patent number: D653170
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: January 31, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • Patent number: D653171
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: January 31, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • Patent number: D653585
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: February 7, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • Patent number: D653586
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: February 7, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • Patent number: D655224
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: March 6, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • Patent number: D655646
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: March 13, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • Patent number: D655647
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: March 13, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • Patent number: D659051
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: May 8, 2012
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki