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).
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Patent number: 11633021Abstract: 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: GrantFiled: January 27, 2021Date of Patent: April 25, 2023Assignee: YKK CorporationInventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
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Patent number: 11470922Abstract: 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: GrantFiled: April 1, 2016Date of Patent: October 18, 2022Assignee: YKK CorporationInventors: Isamu Michihata, Yui Hashimoto
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Patent number: 11284681Abstract: 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: GrantFiled: April 3, 2017Date of Patent: March 29, 2022Assignee: YKK CorporationInventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
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Patent number: 11259605Abstract: 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: GrantFiled: March 3, 2020Date of Patent: March 1, 2022Assignee: YKK CorporationInventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
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Patent number: 11089845Abstract: 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: GrantFiled: December 24, 2015Date of Patent: August 17, 2021Assignee: YKK CorporationInventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
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Publication number: 20210145133Abstract: 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: ApplicationFiled: January 27, 2021Publication date: May 20, 2021Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
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Publication number: 20210106101Abstract: 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: ApplicationFiled: December 21, 2020Publication date: April 15, 2021Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
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Publication number: 20200390199Abstract: 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: ApplicationFiled: April 1, 2016Publication date: December 17, 2020Inventors: Isamu Michihata, Yui Hashimoto
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Publication number: 20200196715Abstract: 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: ApplicationFiled: March 3, 2020Publication date: June 25, 2020Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
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Publication number: 20200107617Abstract: 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: ApplicationFiled: April 3, 2017Publication date: April 9, 2020Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
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Patent number: 10433620Abstract: 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: GrantFiled: December 25, 2014Date of Patent: October 8, 2019Assignee: YKK CorporationInventors: Hirokazu Kameyama, Isamu Michihata, Yui Hashimoto
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Patent number: 10306954Abstract: 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: GrantFiled: September 29, 2014Date of Patent: June 4, 2019Assignee: YKK CorporationInventors: Yoshinori Kojima, Hayuru Tanaka, Isamu Michihata, Yui Miyawaki
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Publication number: 20190008239Abstract: 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: ApplicationFiled: December 24, 2015Publication date: January 10, 2019Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
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Patent number: 10098420Abstract: 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: GrantFiled: October 29, 2014Date of Patent: October 16, 2018Assignee: YKK CorporationInventors: Toshiyuki Asami, Isamu Michihata, Sayaka Nakamura, Yoshinori Kojima
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Patent number: 9854880Abstract: [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: GrantFiled: September 30, 2013Date of Patent: January 2, 2018Assignee: YKK CorporationInventors: Yoshinori Kojima, Hayuru Tanaka, Isamu Michihata, Yui Miyawaki
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Publication number: 20170332744Abstract: 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: ApplicationFiled: December 25, 2014Publication date: November 23, 2017Inventors: Hirokazu Kameyama, Isamu Michihata, Yui Hashimoto
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Publication number: 20170311684Abstract: 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: ApplicationFiled: October 29, 2014Publication date: November 2, 2017Inventors: Toshiyuki Asami, Isamu Michihata, Sayaka Nakamura, Yoshinori Kojima
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Publication number: 20160242514Abstract: 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: ApplicationFiled: September 29, 2014Publication date: August 25, 2016Inventors: Yoshinori Kojima, Hayuru Tanaka, Isamu Michihata, Yui Miyawaki
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Publication number: 20160227887Abstract: [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: ApplicationFiled: September 30, 2013Publication date: August 11, 2016Inventors: Yoshinori Kojima, Hayuru Tanaka, Isamu Michihata, Yui Miyawaki
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Patent number: 8246880Abstract: 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: GrantFiled: September 29, 2006Date of Patent: August 21, 2012Assignee: Konica Minolta Opto, Inc.Inventors: Satomi Kawabe, Kazuto Kiyohara, Kunio Shimizu, Isamu Michihata, Akihiko Takeda, Kazuaki Nakamura