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: 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: 7870650
    Abstract: A slide fastener slider comprising: a slider body; a pull tab holder body attached to the slider body in a cantilevered state with one end portion thereof fixed to a top face side of the slider body; an opening/closing member disposed slidably on the slider body so as to open and close a gap formed between an other end portion of the pull tab holder body and the upper blade; and an elastic member for urging the opening/closing member to a closing position of the gap, so that a pull tab is detachably held between the slider body and the pull tab holder body, the slider further comprising a fitting sliding structure in which the pull tab holder body is fitted to the slider body from a front or rear end thereof so as to be relatively slidable in a length direction of the slider body.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: January 18, 2011
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Yoshikazu Hamada
  • Patent number: 7866012
    Abstract: A slider for a double-sided slide fastener includes: a body, having a first body, a second body opposed to the first body, an operating member, having a first member parallel to the first body and formed with a first groove and a second member parallel to the second body and formed with a second groove, and adapted to slide on the first and second bodies in a direction; a pawl member having a locking pawl configured to retractably project to a space of the body in accordance with a sliding operation of the operating member; and first and second pull-tabs, attached to the first and second grooves, respectively. A shaft portion of the first pull-tab can abut against an end portion of the first groove in the direction, and a shaft portion of the second pull-tab can abut against an end portion of the second groove in the direction.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: January 11, 2011
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Yoshikazu Hamada, Koji Yamagishi
  • Publication number: 20080229555
    Abstract: A slider for a double-sided slide fastener with an automatic locking device, includes: a body, having a first body, a second body opposed to the first body, and a third body connected to the first body and the second body, which define a space; an operating member, attached to the body, and having a first member being parallel to the first body and formed with a first groove and a second member being parallel to the second body and formed with a second groove, the operating member adapted to slide on the first member and the second member in a direction; a pawl member, being in the body, and having a locking pawl configured to retractably project to the space in accordance with a sliding operation of the operating member; a first pull-tab, attached to the first groove; and a second pull-tab, attached to the second groove.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 25, 2008
    Inventors: Keiichi Keyaki, Yoshikazu Hamada, Koji Yamagishi
  • Patent number: D651130
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: December 27, 2011
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Yohei Miyazaki
  • 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