Patents by Inventor Isamu Michihata

Isamu Michihata 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: 11633021
    Abstract: Provided is a molding apparatus used for manufacturing a molded surface fastener wherein a die wheel driving rotationally has a concentric double cylinder structure provided with an outer side cylindrical body that has provided therethrough a plurality of penetrating holes, and an inner side cylindrical body that has formed, in the outer peripheral surface thereof, a plurality of grooved portions, the grooved portions located in the inner side cylindrical body include a use grooved portion that intersects with the penetrating hole of the outer side cylindrical body and a non-use grooved portion that is covered by the inner peripheral surface of the outer side cylindrical body. By using this molding apparatus obtained is a molded surface fastener in which a plurality of types of engaging elements having different shapes in a plan view are arranged cyclically in a reference direction.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: April 25, 2023
    Assignee: YKK Corporation
    Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
  • Patent number: 11470922
    Abstract: Provided is a molded surface fastener having an improved balance between durability against repeated attachment and detachment operations and peeling strength. A molded surface fastener made of a thermoplastic resin, includes: a flat plate-shaped base portion; and a plurality of engaging elements protruding from one main surface of the base portion. Each engaging element includes: a stem upstanding from the main surface; and an engaging head portion formed at an upper end portion of the stem, the head portion including a projection portion extending mainly in a direction perpendicular to a molding direction as viewed in a planar view.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: October 18, 2022
    Assignee: YKK Corporation
    Inventors: Isamu Michihata, Yui Hashimoto
  • Patent number: 11284681
    Abstract: Provided is a molding apparatus used for manufacturing a molded surface fastener wherein a die wheel driving rotationally has a concentric double cylinder structure provided with an outer side cylindrical body that has provided therethrough a plurality of penetrating holes, and an inner side cylindrical body that has formed, in the outer peripheral surface thereof, a plurality of grooved portions, the grooved portions located in the inner side cylindrical body include a use grooved portion that intersects with the penetrating hole of the outer side cylindrical body and a non-use grooved portion that is covered by the inner peripheral surface of the outer side cylindrical body. By using this molding apparatus obtained is a molded surface fastener in which a plurality of types of engaging elements having different shapes in a plan view are arranged cyclically in a reference direction.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: March 29, 2022
    Assignee: YKK Corporation
    Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
  • Patent number: 11259605
    Abstract: In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: March 1, 2022
    Assignee: YKK Corporation
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
  • Patent number: 11089845
    Abstract: In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: August 17, 2021
    Assignee: YKK Corporation
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
  • Publication number: 20210145133
    Abstract: Provided is a molding apparatus used for manufacturing a molded surface fastener wherein a die wheel driving rotationally has a concentric double cylinder structure provided with an outer side cylindrical body that has provided therethrough a plurality of penetrating holes, and an inner side cylindrical body that has formed, in the outer peripheral surface thereof, a plurality of grooved portions, the grooved portions located in the inner side cylindrical body include a use grooved portion that intersects with the penetrating hole of the outer side cylindrical body and a non-use grooved portion that is covered by the inner peripheral surface of the outer side cylindrical body. By using this molding apparatus obtained is a molded surface fastener in which a plurality of types of engaging elements having different shapes in a plan view are arranged cyclically in a reference direction.
    Type: Application
    Filed: January 27, 2021
    Publication date: May 20, 2021
    Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
  • Publication number: 20210106101
    Abstract: In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
  • Publication number: 20200390199
    Abstract: Provided is a molded surface fastener having an improved balance between durability against repeated attachment and detachment operations and peeling strength. A molded surface fastener made of a thermoplastic resin, includes: a flat plate-shaped base portion; and a plurality of engaging elements protruding from one main surface of the base portion. Each engaging element includes: a stem upstanding from the main surface; and an engaging head portion formed at an upper end portion of the stem, the head portion including a projection portion extending mainly in a direction perpendicular to a molding direction as viewed in a planar view.
    Type: Application
    Filed: April 1, 2016
    Publication date: December 17, 2020
    Inventors: Isamu Michihata, Yui Hashimoto
  • Publication number: 20200196715
    Abstract: In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 25, 2020
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
  • Publication number: 20200107617
    Abstract: Provided is a molding apparatus used for manufacturing a molded surface fastener wherein a die wheel driving rotationally has a concentric double cylinder structure provided with an outer side cylindrical body that has provided therethrough a plurality of penetrating holes, and an inner side cylindrical body that has formed, in the outer peripheral surface thereof, a plurality of grooved portions, the grooved portions located in the inner side cylindrical body include a use grooved portion that intersects with the penetrating hole of the outer side cylindrical body and a non-use grooved portion that is covered by the inner peripheral surface of the outer side cylindrical body. By using this molding apparatus obtained is a molded surface fastener in which a plurality of types of engaging elements having different shapes in a plan view are arranged cyclically in a reference direction.
    Type: Application
    Filed: April 3, 2017
    Publication date: April 9, 2020
    Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
  • Patent number: 10433620
    Abstract: A waterproof fastener chain includes: a pair of fastener tapes made of polyester resin adjacent to each other at a given space between each side edge thereof, rows of elements respectively attached onto a main surface of the side edge of each of the fastener tapes, and waterproof coated films made of polyester resin respectively formed on a main surface of each of the fastener tapes. An outer surface of each of the waterproof coated films is flat at least at a position where a slider is to pass over, each of the waterproof coated films penetrates into irregularities on the main surface of each of the fastener tapes, a penetration depth of the waterproof coated films into a gap caused by the space of the pair of fastener tapes is not more than thickness of the fastener tapes.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: October 8, 2019
    Assignee: YKK Corporation
    Inventors: Hirokazu Kameyama, Isamu Michihata, Yui Hashimoto
  • Patent number: 10306954
    Abstract: There is provided a side fastener chain. A plurality of elements are fixed on each of opposing edge portions of a pair of fastener tapes at a predetermined pitch. The elements include a base portion and a head portion. A ratio (Rt) of the sum dimension of a first partial thickness, which is measured from an upper surface of each element to an upper surfaces-side apex of the respective edge portion, and a second partial thickness, which is measured from a lower surface of the element to a lower surface-side apex of the edge portion, to a thickness of the element satisfies the following equation: 40%?Rt. A ratio (Rtl) of the thickness of the element to the entire length of the element satisfies the following equation: 0<Rtl<60%.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: June 4, 2019
    Assignee: YKK Corporation
    Inventors: Yoshinori Kojima, Hayuru Tanaka, Isamu Michihata, Yui Miyawaki
  • Publication number: 20190008239
    Abstract: In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.
    Type: Application
    Filed: December 24, 2015
    Publication date: January 10, 2019
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
  • Patent number: 10098420
    Abstract: Elements are made of a polyacetal resin, which can effectively improve the chain crosswise strength while maintaining wear resistance. Provided is a fastener element made of a polyacetal resin composition containing 5 to 30% by mass of reinforcing fibers each having an average fiber diameter of 5 to 15 ?m and a numeric average fiber length of 150 to 500 ?m.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: October 16, 2018
    Assignee: YKK Corporation
    Inventors: Toshiyuki Asami, Isamu Michihata, Sayaka Nakamura, Yoshinori Kojima
  • Patent number: 9854880
    Abstract: [Problem] To provide a slide fastener chain and a slide fastener, which have a small curvature radius and which have flexibility enabling the slide fastener chain and the slide fastener to be smoothly bent. [Solution] A slide fastener chain (1) comprises: a pair of fastener tapes (2); and elements (3) affixed to the facing edges (21) of the fastener tapes (2) at a predetermined pitch. The slide fastener chain (1) is characterized in that: the elements (3) each have bases (31a, 32a) affixed to a fastener tape (2) and each have heads (31c, 32c) protruding from the bases (31a, 32a) and engaging with facing elements (3); and the thickness (t) and pitch (p) of the elements (3) satisfy the following expressions (1) and (2).
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 2, 2018
    Assignee: YKK Corporation
    Inventors: Yoshinori Kojima, Hayuru Tanaka, Isamu Michihata, Yui Miyawaki
  • Publication number: 20170332744
    Abstract: A waterproof fastener chain includes: a pair of fastener tapes made of polyester resin adjacent to each other at a given space between each side edge thereof, rows of elements respectively attached onto a main surface of the side edge of each of the fastener tapes, and waterproof coated films made of polyester resin respectively formed on a main surface of each of the fastener tapes. An outer surface of each of the waterproof coated films is flat at least at a position where a slider is to pass over, each of the waterproof coated films penetrates into irregularities on the main surface of each of the fastener tapes, a penetration depth of the waterproof coated films into a gap caused by the space of the pair of fastener tapes is not more than thickness of the fastener tapes.
    Type: Application
    Filed: December 25, 2014
    Publication date: November 23, 2017
    Inventors: Hirokazu Kameyama, Isamu Michihata, Yui Hashimoto
  • Publication number: 20170311684
    Abstract: Elements are made of a polyacetal resin, which can effectively improve the chain crosswise strength while maintaining wear resistance. Provided is a fastener element made of a polyacetal resin composition containing 5 to 30% by mass of reinforcing fibers each having an average fiber diameter of 5 to 15 ?m and a numeric average fiber length of 150 to 500 ?m.
    Type: Application
    Filed: October 29, 2014
    Publication date: November 2, 2017
    Inventors: Toshiyuki Asami, Isamu Michihata, Sayaka Nakamura, Yoshinori Kojima
  • Publication number: 20160242514
    Abstract: There is provided a side fastener chain. A plurality of elements are fixed on each of opposing edge portions of a pair of fastener tapes at a predetermined pitch. The elements include a base portion and a head portion. A ratio (Rt) of the sum dimension of a first partial thickness, which is measured from an upper surface of each element to an upper surfaces-side apex of the respective edge portion, and a second partial thickness, which is measured from a lower surface of the element to a lower surface-side apex of the edge portion, to a thickness of the element satisfies the following equation: 40%?Rt. A ratio (Rtl) of the thickness of the element to the entire length of the element satisfies the following equation: 0<Rtl<60%.
    Type: Application
    Filed: September 29, 2014
    Publication date: August 25, 2016
    Inventors: Yoshinori Kojima, Hayuru Tanaka, Isamu Michihata, Yui Miyawaki
  • Publication number: 20160227887
    Abstract: [Problem] To provide a slide fastener chain and a slide fastener, which have a small curvature radius and which have flexibility enabling the slide fastener chain and the slide fastener to be smoothly bent. [Solution] A slide fastener chain (1) comprises: a pair of fastener tapes (2); and elements (3) affixed to the facing edges (21) of the fastener tapes (2) at a predetermined pitch. The slide fastener chain (1) is characterized in that: the elements (3) each have bases (31a, 32a) affixed to a fastener tape (2) and each have heads (31c, 32c) protruding from the bases (31a, 32a) and engaging with facing elements (3); and the thickness (t) and pitch (p) of the elements (3) satisfy the following expressions (1) and (2).
    Type: Application
    Filed: September 30, 2013
    Publication date: August 11, 2016
    Inventors: Yoshinori Kojima, Hayuru Tanaka, Isamu Michihata, Yui Miyawaki
  • Patent number: 8246880
    Abstract: Disclosed is a method for producing a cellulose ester film wherein a film-forming material containing the following components A-C is heated and melted, and a cellulose ester film is formed therefrom by melt-casting. A: a cellulose resin, B: an ester compound obtained by condensing an organic acid represented by Formula (1) and a polyalcohol, and C: an aliphatic polyester or an aliphatic-aromatic copolymer.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: August 21, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Satomi Kawabe, Kazuto Kiyohara, Kunio Shimizu, Isamu Michihata, Akihiko Takeda, Kazuaki Nakamura