Patents by Inventor Yoshikatsu Fujisawa

Yoshikatsu Fujisawa 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: 11882907
    Abstract: A laser weldable hook-and-loop fastener contains a laser light transmitting male-type molded hook-and-loop fastener (A) and a laser light absorbing layer (B) formed of a thermoplastic resin, which is integrated on the back surface of the male-type molded hook-and-loop fastener (A). The male-type molded hook-and-loop fastener (A) has a base plate and a large number of male-type engaging elements rising from the surface of the base plate. The male-type engaging elements and the base plate are formed of the same resin selected from a polyester elastomer and a polyamide, the male-type engaging elements are arranged in a row, and the laser light absorbing layer (B) has an infrared absorptance of 85% or more at a wavelength of 980 nm.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: January 30, 2024
    Assignee: Kuraray Fastening Co., Ltd.
    Inventors: Satoru Ono, Yoshikatsu Fujisawa
  • Publication number: 20240000198
    Abstract: A polyester woven-fabric hook-and-loop fastener has a warp yarn thickness Tb which is 0.94 times or less of a warp yarn thickness Ts. A selvage area having a constant width is present on two opposite ends, continuously in a line form in the warp direction, without misalignment in the weft direction. As a result, when the polyester woven-fabric hook-and-loop fastener is sewn onto a garment or the like, a sewing thread sewn to the selvage area is in a straight line without meandering, and thus a sewn product excellent in appearance can be obtained.
    Type: Application
    Filed: November 1, 2021
    Publication date: January 4, 2024
    Applicant: Kuraray Fastening Co., Ltd.
    Inventors: Makoto Sagara, Yoshikatsu Fujisawa, Nobuhiro Koga
  • Patent number: 11730239
    Abstract: There is provided a touch fastener that has high followability to the relative movement of portions to be engaged and does not easily separate from a mating member, and thus is usable in a wider range of applications. In the touch fastener, all the elements, that is, first strands, second strands, and engagement elements are formed of a thermoplastic elastomer. Further, the plurality of first strands and the plurality of second strands are disposed to intersect with each other, and consequently, hole portions each surrounded by the two adjacent first strands and the two adjacent second strands are provided. Accordingly, it has a high elastic function, easily stretches, and has high followability to the relative movement of portions to be engaged.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: August 22, 2023
    Assignee: KURARAY FASTENING CO., LTD.
    Inventors: Kazunori Takakuwa, Satoru Ono, Yoshikatsu Fujisawa, Etsunori Fujita
  • Publication number: 20230249107
    Abstract: A resin sheet contains: a sheet-like substrate of a resin; and wall-like projections (W) of the same resin having a certain height and standing upright on one surface of the substrate. The wall-like projections (W) are arranged on the surface of the substrate in at least 10 parallel rows with a certain spacing, and a large number of the wall-like projections (W), which satisfy the conditions (1) to (5) described in the specification, are present in parallel on the one surface of the substrate. The resin sheet is useful as a directional male hook-and-loop fastener whose male engaging elements are unlikely to break when a force is applied thereto and which does not provide a stimulus to the skin when it touches the surface of the fastener, as a filter for separating fine particles from a fluid, and as a display resin sheet.
    Type: Application
    Filed: June 15, 2021
    Publication date: August 10, 2023
    Applicant: Kuraray Fastening Co., Ltd.
    Inventors: Satoru Ono, Yoshikatsu Fujisawa
  • Publication number: 20230112098
    Abstract: A water-soluble male-type molded hook-and-loop fastener includes a substrate and a plurality of male-type engaging elements, arranged in rows, protruding from the substrate surface. The engaging elements have a shape rising from the substrate surface and curving mid-course in a row direction, or a shape rising from the substrate surface, branching forward and backward mid-course in the row direction and curving in the row direction, with tip portions oriented toward the substrate surface in either shape. The substrate and the engaging elements both contain a mixture of a polyvinyl alcohol, 5 to 30 parts by mass of a polyhydric alcohol- or ethylene oxide-based polymer, and 3 to 20 parts by mass of a layered inorganic particle, based on 100 parts by mass of the polyvinyl alcohol. The polyvinyl alcohol has a degree of polymerization of 300 to 700 and a degree of saponification of 60 to 80% by mole.
    Type: Application
    Filed: February 26, 2021
    Publication date: April 13, 2023
    Applicants: KURARAY FASTENING CO., LTD., KURARAY CO., LTD.
    Inventors: Nobuhiro Koga, Hideki Kamada, Satoru Ono, Yoshikatsu Fujisawa
  • Publication number: 20220400818
    Abstract: A male-type molded hook-and-loop fastener-equipped sheet includes a male-type molded hook-and-loop fastener and a non-foam resin sheet integrated on the back surface of the male-type molded hook-and-loop fastener. The male-type molded hook-and-loop fastener includes a resin-made base plate and a plurality of male-type engaging elements made of the same resin, rising from the surface of the base plate and arranged in a row. The male-type engaging elements are bent in the direction of the row direction of the male-type engaging elements from the middle thereof, where the tip end portion approaches the base plate. The non-foam resin sheet is directly laminated and integrated on the back surface of the male-type molded hook-and-loop fastener. The resin constituting the non-foam resin sheet is a resin mainly composed of an elastomer resin of the same type as the resin constituting the male-type molded hook-and-loop fastener, though with a lower hardness.
    Type: Application
    Filed: February 5, 2021
    Publication date: December 22, 2022
    Applicant: KURARAY FASTENING CO., LTD.
    Inventors: Satoru ONO, Yoshikatsu Fujisawa
  • Publication number: 20220378156
    Abstract: A mesh hook surface fastener does not lose engagement ability even when subjected to mold-in forming and gives only a slight feeling of something foreign. The mesh hook surface fastener contains first shape holding ribs (a21) with a relatively small protrusion height and second shape holding ribs (a22) with a relatively large protrusion height which protrude to the opposite side of hook-shaped engagement elements (B1, B2) across a base layer (A1) and are alternately arranged. The heights of the adjacent shape holding ribs (a21, a22) are different, which prevents the direct entrance of a foamable resin liquid and weakens its force. As the force weakens, foaming and curing progress more readily and, as a result, the amount of the foamable resin liquid that passes through meshes of the base layer to reach the hook-shaped engagement elements can be reduced.
    Type: Application
    Filed: October 22, 2020
    Publication date: December 1, 2022
    Applicants: KURARAY FASTENING CO., LTD., DELTA KOGYO CO., LTD.
    Inventors: Toru Tanokura, Yoshikatsu Fujisawa, Satoru Ono, Etsunori Fujita
  • Publication number: 20220218074
    Abstract: The present invention provides a resin molded body with a hook-and-loop fastener excellent in engaging force, and a method for producing the same. In addition, the present invention provides a method for fixing a ceiling material for automobiles to a vehicle body, which has an adhesive force for a long period of time even under high temperature or low temperature conditions, is excellent in productivity, and does not cause a problem such as falling of a male-type engaging element even when a hot melt adhesive is used.
    Type: Application
    Filed: May 21, 2020
    Publication date: July 14, 2022
    Applicant: KURARAY FASTENING CO., LTD.
    Inventors: Satoru ONO, Yoshikatsu FUJISAWA, Yuichi ITOI
  • Publication number: 20220211147
    Abstract: A laser weldable hook-and-loop fastener contains a laser light transmitting male-type molded hook-and-loop fastener (A) and a laser light absorbing layer (B) formed of a thermoplastic resin, which is integrated on the back surface of the male-type molded hook-and-loop fastener (A). The male-type molded hook-and-loop fastener (A) has a base plate and a large number of male-type engaging elements rising from the surface of the base plate. The male-type engaging elements and the base plate are formed of the same resin selected from a polyester elastomer and a polyamide, the male-type engaging elements are arranged in a row, and the laser light absorbing layer (B) has an infrared absorptance of 85% or more at a wavelength of 980 nm.
    Type: Application
    Filed: May 21, 2020
    Publication date: July 7, 2022
    Applicant: KURARAY FASTENING CO., LTD.
    Inventors: Satoru ONO, Yoshikatsu FUJISAWA
  • Publication number: 20220175093
    Abstract: A molded hook surface fastener having a base plate and a large number of hook engaging elements projecting from a surface of the base plate, wherein both the base plate and the hook engaging elements is made of a resin mixture comprising polybutylene succinate (A) as a continuous phase and starch (B) as a dispersed phase, and satisfying the following requirements (1) to (3) simultaneously: (1) the dispersed phase comprises polyvinyl alcohol (C); (2) the starch (B) comprises a modified starch, and an amylose content of the starch (B) is 45% by weight or more; and (3) the hook engaging element tapers from a surface of the base plate toward a distal end portion and gradually bends from its middle such that the distal end portion faces a direction slightly approaching the surface of the base plate, is produced without breaking the hook engaging element during the pultrusion molding and is decomposed in the natural environment and does not bring about environmental destruction when discarded.
    Type: Application
    Filed: March 26, 2020
    Publication date: June 9, 2022
    Applicants: KURARAY FASTENING CO., LTD., KURARAY CO., LTD.
    Inventors: Nobuhiro KOGA, Satoru ONO, Junya IDE, Yoshikatsu FUJISAWA
  • Patent number: 11197520
    Abstract: A fixing belt which includes: a double-sided hook surface fastener having hook-like engaging elements on both surfaces thereof; and a double-sided loop surface fastener having loop-like engaging elements on both surfaces thereof. The double-sided hook surface fastener is an extrusion molding surface fastener, the double-sided hook surface fastener is folded back in a length direction in a shape of an alligator's mouth, and the double-sided hook surface fastener is fixed to a first mounting object at a folded-back portion by a rivet. One end portion of the double-sided loop surface fastener is tucked by the alligator's mouth, the double-sided loop surface fastener is folded back by an annular part fixed to a second mounting object, and the other end portion of the double-sided loop surface fastener engages with an outer side surface of the alligator's mouth.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: December 14, 2021
    Assignee: Kuraray Fastening Co., Ltd.
    Inventors: Kazunori Takakuwa, Yoshikatsu Fujisawa, Shiro Ogawa
  • Publication number: 20210100323
    Abstract: There is provided a touch fastener that has high followability to the relative movement of portions to be engaged and does not easily separate from a mating member, and thus is usable in a wider range of applications. In the touch fastener, all the elements, that is, first strands, second strands, and engagement elements are formed of a thermoplastic elastomer. Further, the plurality of first strands and the plurality of second strands are disposed to intersect with each other, and consequently, hole portions each surrounded by the two adjacent first strands and the two adjacent second strands are provided. Accordingly, it has a high elastic function, easily stretches, and has high followability to the relative movement of portions to be engaged.
    Type: Application
    Filed: November 28, 2018
    Publication date: April 8, 2021
    Applicant: KURARAY FASTENING CO., LTD.
    Inventors: Kazunori Takakuwa, Satoru Ono, Yoshikatsu Fujisawa, Etsunori Fujita
  • Publication number: 20190373988
    Abstract: A fixing belt which includes: a double-sided hook surface fastener having hook-like engaging elements on both surfaces thereof; and a double-sided loop surface fastener having loop-like engaging elements on both surfaces thereof. The double-sided hook surface fastener is an extrusion molding surface fastener, the double-sided hook surface fastener is folded back in a length direction in a shape of an alligator's mouth, and the double-sided hook surface fastener is fixed to a first mounting object at a folded-back portion by a rivet. One end portion of the double-sided loop surface fastener is tucked by the alligator's mouth, the double-sided loop surface fastener is folded back by an annular part fixed to a second mounting object, and the other end portion of the double-sided loop surface fastener engages with an outer side surface of the alligator's mouth.
    Type: Application
    Filed: February 8, 2018
    Publication date: December 12, 2019
    Applicant: Kuraray Fastening Co., Ltd.
    Inventors: Kazunori TAKAKUWA, Yoshikatsu FUJISAWA, Shiro OGAWA
  • Publication number: 20150230564
    Abstract: The present invention relates to a mold-in cast male surface fastener wherein a water/oil repellent agent (5) is applied to a front surface of a tape-like substrate (1) on a front surface side of the surface fastener having a large number of male engagement elements (2) on the front surface of the substrate (1), and to the engagement elements (2) on the front surface.
    Type: Application
    Filed: August 16, 2013
    Publication date: August 20, 2015
    Applicant: KURARAY FASTENING CO., LTD.
    Inventors: Yoshikatsu Fujisawa, Shiro Ogawa