Patents by Inventor Keiichi Keyaki

Keiichi Keyaki 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: 8776330
    Abstract: There is provided an end stop for a slide fastener, in which the attachment strength can be ensured irrespective of the size of the end stop, and a core can be firmly set to a setting position with respect to the end stop. The end stop has a base and a pair of legs which extend from the base, and the end stop is formed with a receptacle which is surrounded by the base and the pair of legs. The pair of legs have a pair of opening-side ends which are provided opposite to the base, and a pair of protrusions which are provided in the receptacle adjacent to the opening-side ends, the pair of protrusions protruding inward further than opposing surfaces of the pair of opening-side ends.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: July 15, 2014
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Shinya Honda
  • Publication number: 20140130315
    Abstract: Provided is a slider for slide fastener. A pull-tab has a cam portion, and when the pull-tab is rotated from a laid-down state where the pull-tab is laid down toward one side of a slider main body to an erected state, the pull-tab is urged with using the cam portion in a direction in which the pull-tab reruns to the laid-down state by an elastic force of a spring part. The slider has a restraining part configured to prevent the pull-tab from rotating further from the erected state and prevent the pull-tab from being laid down toward the other side of the slider main body.
    Type: Application
    Filed: June 17, 2011
    Publication date: May 15, 2014
    Applicant: YKK Corporation
    Inventors: Keiichi Keyaki, Yohei Miyazaki
  • Patent number: 8661628
    Abstract: A slide fastener includes a pair of first and second fastener stringers, a box pin, an insert pin, and a pair of first and second sliders. The box pin has a box pin body, a stopper portion arranged at a front end side of the box pin body, and suppressing portions projected on at least one of upper and lower surfaces of the box pin body to suppress sliding of the second slider. Further, the box pin body has a body region, and a notched region arranged at an element-row-side base end portion and having excluded a side surface portion at a side facing the insert pin. The suppressing portions are projected in only the notched region. With this arrangement, the second slider can be stably held at an insert-pin inserting position, and a subsequent insert operation or extract operation of the insert pin can be smoothly performed.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: March 4, 2014
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Takanori Ozawa
  • Publication number: 20140041162
    Abstract: There is provided a vertically engaging slider made of metal, which is suitable for the industrial production. The front end wall of the slider according to the present invention has a plastically deformed portion caused by plastic working in which with the front end wall itself as a fulcrum, the back opening is deformed from an open state to a closed state in the upper-lower direction.
    Type: Application
    Filed: April 18, 2011
    Publication date: February 13, 2014
    Applicant: YKK CORPORATION
    Inventors: Keiichi Keyaki, Yuichi Iwase
  • 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: 20140000069
    Abstract: A slider has an upper blade of a slider body having an insert groove of a locking pawl, a temporary engagement portion for which temporary engages and fixes the locking pawl, and a claw hole. The temporary engagement portion is adapted so that, with the locking pawl fixed in position, the position in height of the upper end of the temporary engagement portion is the same as or lower than that of the upper surface of the upper blade. This prevents the temporary engagement portion from being pressed and crushed when the temporary engagement portion is in contact with the tab and so on. As a result, an automatic stop mechanism of the slider can stably function.
    Type: Application
    Filed: September 9, 2013
    Publication date: January 2, 2014
    Applicant: YKK Corporation
    Inventors: Keiichi Keyaki, Koji Yamagishi, Takanori Ozawa
  • Patent number: 8584326
    Abstract: A slider has an upper blade of a slider body having an insert groove of a locking pawl, a temporary engagement portion which temporary engages and fixes the locking pawl, and a claw hole. The temporary engagement portion is adapted so that, with the locking pawl fixed in position, the position in height of the upper end of the temporary engagement portion is the same as or lower than that of the upper surface of the upper blade. This prevents the temporary engagement portion from being pressed and crushed when the temporary engagement portion is in contact with the tab and so on. As a result, an automatic stop mechanism of the slider can stably function.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: November 19, 2013
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Koji Yamagishi, Takanori Ozawa
  • 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: 20130255042
    Abstract: A slider for a slide fastener with an automatic stopper, includes a body forming an element guide passage into which fastener elements are insertable, a locking member swingably supported in the body by a pin and having a locking claw which is protrudable from a locking window hole formed in the body to the element guide passage and an urging member configured to urge the locking member so that the locking claw protrudes from the locking window hole to the element guide passage. A pair of lateral plate portions of the cover, which are disposed at both end portions of the pin are respectively provided with crimping protrusions which are abuttable against end faces of the pin and which are arranged at peripheral portions of a through-hole of the pair of lateral plate portions through which the pin penetrates.
    Type: Application
    Filed: September 24, 2010
    Publication date: October 3, 2013
    Applicant: YKK CORPORATION
    Inventors: Keiichi Keyaki, Koji Yamagishi, Shinya Honda
  • Publication number: 20130160248
    Abstract: A slider with a stop mechanism includes a slider body having first and second post positions on an upper blade, a pull tab, and a bent leaf spring member. The leaf spring member includes first and second restraining portions which abut against the first and second post positions, respectively, to restrain upward movement. The first and second restraining portions are respectively disposed at positions to be spaced apart from the first and second post positions when the inclined angle ? of the pull tab is 0°. The first restraining portion is disposed in a relation to abut against the first portion and thus restrain the upward movement, when the inclined angle ? is in a range of 0°<?<180° or when the axis of the pull tab is spaced apart from the upper blade.
    Type: Application
    Filed: September 10, 2010
    Publication date: June 27, 2013
    Applicant: YKK Corporation
    Inventors: Keiichi Keyaki, Koji Yamagishi
  • Patent number: 8453302
    Abstract: A slider for slide fastener has a handle attachment/detachment column part projected upward from an upper face of a slider body and a pair of cantilever engagement pieces formed in a window part of a handle, and they are snap-engaged. An attachment/detachment part of the cantilever engagement piece and the handle attachment/detachment column part is provided with a head storage space (PS) storing and engaging an attachment/detachment head at the time of engaging the cantilever engagement piece and the attachment/detachment head. Thus, attachment/detachment of the handle attachment/detachment column part and the cantilever engagement piece becomes easy and the cantilever engagement piece of the handle is difficult to be damaged. Uncomfortable feeling by a projected end of the handle attachment/detachment column part and hooking of fiber do not exist and durability is given.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: June 4, 2013
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Hideya Take
  • Publication number: 20130025092
    Abstract: Engaged portions formed on a tab holder are elastically engaged and attached to engaging portions formed on a first column portion and the rear side of a second column portion on an upper blade, and a pair of protrusions formed on the inner side of the tab holder are fitted in a recession formed on an inclined surface of the first column portion and a recession formed on an inclined surface of the second column portion. Further, stepped portions formed at both edge portions of both front and rear ends of the tab holder are brought in contact with end surfaces and inner sides of support walls installed at both edge portions of inclined surfaces. The slide fastener can improve attachment strength of the tab holder, implement excellent durability for a long period of time, excellent external appearance, and excellent assembly performance.
    Type: Application
    Filed: April 2, 2010
    Publication date: January 31, 2013
    Applicant: YKK Corporation
    Inventors: Takanori Ozawa, Keiichi Keyaki, Ryuta Kumano
  • Publication number: 20120260470
    Abstract: There is provided an end stop for a slide fastener, in which the attachment strength can be ensured irrespective of the size of the end stop, and a core can be firmly set to a setting position with respect to the end stop. The end stop has a base and a pair of legs which extend from the base, and the end stop is formed with a receptacle which is surrounded by the base and the pair of legs. The pair of legs have a pair of opening-side ends which are provided opposite to the base, and a pair of protrusions which are provided in the receptacle adjacent to the opening-side ends, the pair of protrusions protruding inward further than opposing surfaces of the pair of opening-side ends.
    Type: Application
    Filed: December 25, 2009
    Publication date: October 18, 2012
    Applicant: YKK Corporation
    Inventors: Keiichi Keyaki, Shinya Honda
  • Patent number: D671451
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: November 27, 2012
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Yohei Miyazaki
  • Patent number: D671863
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: December 4, 2012
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Yohei Miyazaki
  • Patent number: D671864
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: December 4, 2012
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Yohei Miyazaki
  • Patent number: D673480
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: January 1, 2013
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Takanori Ozawa, Yuichi Iwase
  • Patent number: D691919
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 22, 2013
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Yohei Miyazaki