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: 10085525
    Abstract: Provided is a slider having appearance or texture which cannot be obtained with a slider body made of metal or synthetic resin in the related art and further having properties superior than those of sliders in the related art. A slider of an embodiment of the invention includes a slider body formed by sintered bodies containing zirconium oxide as a main component and a tab held by a tab attaching portion of the slider body.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: October 2, 2018
    Assignee: YKK Corporation
    Inventors: Toru Yabuya, Keiichi Keyaki, Hisanori Kato, Tomoko Taguchi
  • Patent number: 9993049
    Abstract: There is provided a slide fastener slider. A pull tab has a rotatable region including laid-down positions and a stood-up position. Within the rotatable region of the pull tab, a locking pawl is elastically deformed to move a cover portion, and a pawl portion is arranged to be inserted into and removed from an element guide passage in accordance with movement of the cover portion. When the pull tab is completely laid down toward the shoulder mouths and rear mouth relative to the slider body, the pull tab has respective regions in which the pull tab is rotatable over a predetermined angle without exerting any load on the locking pawl.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: June 12, 2018
    Assignee: YKK Corporation
    Inventors: Yohei Miyazaki, Keiichi Keyaki
  • Patent number: 9930939
    Abstract: A slider includes lower flanges placed on left and right side edges of a lower wing plate. Each of the lower flanges includes a downwardly inclined surface portion which is placed on the shoulder-opening-side tip portion on a side of its upper surface and on an outer side in a width direction of the slider, and which downwardly inclines toward a shoulder and downwardly inclines toward the outer side in the width direction of the slider. According to this, in a slide fastener having the slider, even if a sliding operation of the slider is repeated in the slide fastener, it is possible to avoid defects that the lower flange of the slider comes into sliding contact with the fastener tape and the fastener tape is broken, and it is possible to extend the life of the fastener tape.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: April 3, 2018
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Yuuichi Miyazaki, Shinya Honda
  • Patent number: 9763499
    Abstract: There is provided a slider for a slide fastener. The slider includes a slider body, an elastic body and a pull tab. The pull tab includes a shaft, a pull tab main body and a cam. The cam is configured to elastically deform the elastic body when the pull tab is laid down. The slider body includes an upper blade and a pair of pull tab attaching posts. The upper blade includes a recess portion and a crimping portion. The recess portion includes a pair of lateral recess portions and a center recess portion. The crimping portion protrudes from at least one of the lateral recess portions at a protruding location located at a center side relative to both front and rear ends of the center recess portion.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: September 19, 2017
    Assignee: YKK Corporation
    Inventors: Takanori Ozawa, Mingsi Wang, Yuki Chayahara, Keiichi Keyaki
  • Patent number: 9750313
    Abstract: A slider for slide fastener has a slider body in which an upper wing and a lower wing are coupled via a coupling pillar at the front side. At the front part of the upper wing, provided is a downward slope descending toward the lower wing as extending away from a front mouth toward a back mouth of the slider body. At the front part of the lower wing, provided is an upward slope ascending toward the upper wing as extending away from the front mouth toward the back mouth of the slider body. The downward slope of the upper wing is steeper than the upward slope of the lower wing.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: September 5, 2017
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Takanori Ozawa
  • Publication number: 20170164696
    Abstract: Provided is a slider having appearance or texture which cannot be obtained with a slider body made of metal or synthetic resin in the related art and further having properties superior than those of sliders in the related art. A slider of an embodiment of the invention includes a slider body formed by sintered bodies containing zirconium oxide as a main component and a tab held by a tab attaching portion of the slider body.
    Type: Application
    Filed: December 7, 2016
    Publication date: June 15, 2017
    Applicant: YKK Corporation
    Inventors: Toru Yabuya, Keiichi Keyaki, Hisanori Kato, Tomoko Taguchi
  • Patent number: 9668548
    Abstract: A slider for a slide fastener is provided which is capable of quickly fastening and unfastening the slide fastener in a remote operation manner. A string having pull tabs on longitudinally opposite sides is fixed to a body of the slider for a slide fastener such that the string is not moved in the longitudinal direction.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: June 6, 2017
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Kouji Yamagishi, Yohei Miyazaki
  • Publication number: 20170071294
    Abstract: There is provided a slider for a slide fastener. The slider includes a slider body, an elastic body and a pull tab. The pull tab includes a shaft, a pull tab main body and a cam. The cam is configured to elastically deform the elastic body when the pull tab is laid down. The slider body includes an upper blade and a pair of pull tab attaching posts. The upper blade includes a recess portion and a crimping portion. The recess portion includes a pair of lateral recess portions and a center recess portion. The crimping portion protrudes from at least one of the lateral recess portions at a protruding location located at a center side relative to both front and rear ends of the center recess portion.
    Type: Application
    Filed: September 16, 2016
    Publication date: March 16, 2017
    Applicant: YKK Corporation
    Inventors: Takanori Ozawa, Mingsi Wang, Yuki Chayahara, Keiichi Keyaki
  • Patent number: 9462853
    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: Grant
    Filed: April 27, 2011
    Date of Patent: October 11, 2016
    Assignee: YKK Corporation
    Inventors: Yoshikazu Hamada, Keiichi Keyaki
  • Publication number: 20160262502
    Abstract: A slider for slide fastener has a slider body in which an upper wing and a lower wing are coupled via a coupling pillar at the front side. At the front part of the upper wing, provided is a downward slope descending toward the lower wing as extending away from a front mouth toward a back mouth of the slider body. At the front part of the lower wing, provided is an upward slope ascending toward the upper wing as extending away from the front mouth toward the back mouth of the slider body. The downward slope of the upper wing is steeper than the upward slope of the lower wing.
    Type: Application
    Filed: December 25, 2013
    Publication date: September 15, 2016
    Inventors: Keiichi Keyaki, Takanori Ozawa
  • Patent number: 9427052
    Abstract: A slider provided with a stopping mechanism has a press molded slider body and a stopping pawl body. The stopping pawl body has a main body, a pawl portion extending from one end side of the main body, an extending portion extending from the other end side of the main body, and a projecting portion projecting from a tip portion of the extending portion, and the extending portion has a rotation support part of the stopping pawl body. A contact surface with which the rotation support part of the upper blade is in contact is formed into a flat surface. According to this constitution, a defect and failure of the stopping mechanism hardly occur in the slider, so that the stopping mechanism can be stably operated for a long period of time.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: August 30, 2016
    Assignee: YKK Corporation
    Inventors: Koji Yamagishi, Keiichi Keyaki
  • Patent number: 9392847
    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: Grant
    Filed: March 31, 2011
    Date of Patent: July 19, 2016
    Assignee: YKK Corporation
    Inventors: Kiyoshi Oda, Keiichi Keyaki, Yoshikazu Hamada
  • Publication number: 20160143401
    Abstract: There is provided a slide fastener slider. A pull tab has a rotatable region including laid-down positions and a stood-up position. Within the rotatable region of the pull tab, a locking pawl is elastically deformed to move a cover portion, and a pawl portion is arranged to be inserted into and removed from an element guide passage in accordance with movement of the cover portion. When the pull tab is completely laid down toward the shoulder mouths and rear mouth relative to the slider body, the pull tab has respective regions in which the pull tab is rotatable over a predetermined angle without exerting any load on the locking pawl.
    Type: Application
    Filed: July 11, 2013
    Publication date: May 26, 2016
    Inventors: Yohei Miyazaki, Keiichi Keyaki
  • Patent number: 9271548
    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: Grant
    Filed: June 17, 2011
    Date of Patent: March 1, 2016
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Yohei Miyazaki
  • Publication number: 20160015134
    Abstract: A slide fastener slider has a body including an upper wing, a lower wing and a coupling pillar mutually coupling the respective upper and lower wings. The slide fastener slider has been cast molded to have a configuration where the post to which a pull is attached extends over the upper wing substantially in parallel with the upper wing, and then a logo or a pattern or the like has been engraved on the upper surface of the post.
    Type: Application
    Filed: September 25, 2015
    Publication date: January 21, 2016
    Inventors: Keiichi Keyaki, Shinya Honda
  • Patent number: 9237784
    Abstract: A slide fastener slider has a body including an upper wing, a lower wing and a coupling pillar mutually coupling the respective upper and lower wings. The slide fastener slider has been cast molded to have a configuration where the post to which a pull is attached extends over the upper wing substantially in parallel with the upper wing, and then a logo or a pattern or the like has been engraved on the upper surface of the post.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: January 19, 2016
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Shinya Honda
  • Patent number: 9232834
    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: Grant
    Filed: September 24, 2010
    Date of Patent: January 12, 2016
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Koji Yamagishi, Shinya Honda
  • Patent number: D778780
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: February 14, 2017
    Assignee: YKK Corporation
    Inventors: Mingsi Wang, Yuki Chayahara, Keiichi Keyaki, Takanori Ozawa
  • Patent number: D778781
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: February 14, 2017
    Assignee: YKK Corporation
    Inventors: Mingsi Wang, Yuki Chayahara, Keiichi Keyaki, Takanori Ozawa
  • Patent number: D803094
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: November 21, 2017
    Assignee: YKK Corporation
    Inventors: Keiichi Keyaki, Yuki Chayahara