Patents by Inventor Kyoichi Yuki

Kyoichi Yuki 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: 11819091
    Abstract: A method for manufacturing a molded surface fastener may include using, as a synthetic resin forming the molded surface fastener, a thermoplastic resin having a melt flow rate of 20 g/10 min or more and 60 g/10 min or less and a flexural modulus of 1000 MPa or more and 2300 MPa or less. Consequently, an engaging element in which a top end surface of an engaging head portion is flat, and at least a part of a back-side proximal end surface of the engaging head portion has an angle of 70° or more and 110° or less with respect to a height direction of the stem portion can be stably molded, and thus the molded surface fastener that has a high peel strength and a good texture can be obtained.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: November 21, 2023
    Assignee: YKK Corporation
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Kyoichi Yuki, Ryosuke Tanimoto
  • Patent number: 11559114
    Abstract: Provided is a molded surface fastener capable of stably having high engaging strength with respect to a loop member. The molded surface fastener of the present invention includes a base portion and a plurality of engaging elements provided with a stem portion and an engaging portion, and is formed of synthetic resin containing lubricant at 0.15 wt % or more and 1.00 wt % or less. A top end surface of the engaging element is formed to be flat, and the engaging portion has a hanging portion which hangs down obliquely downward toward the base portion.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: January 24, 2023
    Assignee: YKK Corporation
    Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Kyoichi Yuki
  • Publication number: 20220039521
    Abstract: A method for manufacturing a molded surface fastener may include using, as a synthetic resin forming the molded surface fastener, a thermoplastic resin having a melt flow rate of 20 g/10 min or more and 60 g/10 min or less and a flexural modulus of 1000 MPa or more and 2300 MPa or less. Consequently, an engaging element in which a top end surface of an engaging head portion is flat, and at least a part of a back-side proximal end surface of the engaging head portion has an angle of 70° or more and 110° or less with respect to a height direction of the stem portion can be stably molded, and thus the molded surface fastener that has a high peel strength and a good texture can be obtained.
    Type: Application
    Filed: November 16, 2018
    Publication date: February 10, 2022
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Kyoichi Yuki, Ryosuke Tanimoto
  • Publication number: 20200305558
    Abstract: Provided is a molded surface fastener capable of stably having high engaging strength with respect to a loop member. The molded surface fastener of the present invention includes a base portion and a plurality of engaging elements provided with a stem portion and an engaging portion, and is formed of synthetic resin containing lubricant at 0.15 wt % or more and 1.00 wt % or less. A top end surface of the engaging element is formed to be flat, and the engaging portion has a hanging portion which hangs down obliquely downward toward the base portion.
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Kyoichi Yuki