Patents by Inventor Hiromichi Yonekura
Hiromichi Yonekura 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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Publication number: 20220363849Abstract: A first object of the present invention is to provide a stretchable conductor sheet that exhibits isotropic conductivity when stretched in a predetermined direction or in a direction perpendicular to the predetermined direction, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet. A second object of the present invention is to provide a stretchable conductor sheet having a small change in specific resistance even when repeatedly twisted, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet. A third object of the present invention is to provide a stretchable conductor sheet having a small change in specific resistance even when repeatedly washed, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet.Type: ApplicationFiled: July 19, 2022Publication date: November 17, 2022Applicant: TOYOBO CO., LTD.Inventors: Michihiko IRIE, Satoshi IMAHASHI, Hiromichi YONEKURA, Takashi KONDO, Maki KINAMI
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Patent number: 11427689Abstract: A first object of the present invention is to provide a stretchable conductor sheet that exhibits isotropic conductivity when stretched in a predetermined direction or in a direction perpendicular to the predetermined direction, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet. A second object of the present invention is to provide a stretchable conductor sheet having a small change in specific resistance even when repeatedly twisted, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet. A third object of the present invention is to provide a stretchable conductor sheet having a small change in specific resistance even when repeatedly washed, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet.Type: GrantFiled: March 8, 2017Date of Patent: August 30, 2022Assignee: TOYOBO CO., LTD.Inventors: Michihiko Irie, Satoshi Imahashi, Hiromichi Yonekura, Takashi Kondo, Maki Kinami
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Patent number: 11130888Abstract: An objective is to provide a stretchable conductor sheet which is useful as a material for electrical wiring and electrodes for garment-type electronic devices, the material having excellent durability in terms of washing and durability in terms of perspiration. A fabric provided with an electrode and an electrical wiring, which are formed from a stretchable conductor sheet, is obtained by: providing a film having releasability with a first stretchable conductor layer which is formed from a paste material that uses carbon-based particles as a conductive filler, while using a flexible resin as a binder resin; subsequently forming a second stretchable conductor layer, while using metal-based particles as a conductive filler; laminating a hot melt adhesive layer thereon; superposing the resulting laminate on a fabric after removing unnecessary parts from the laminate by means of partial slits; and subjecting the resulting fabric to hot pressing.Type: GrantFiled: March 2, 2017Date of Patent: September 28, 2021Assignee: TOYOBO CO., LTD.Inventors: Euichul Kwon, Sonoko Ishimaru, Michihiko Irie, Hiromichi Yonekura, Shota Morimoto
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Patent number: 11067892Abstract: The present invention aims to provide a CTP flexographic printing original plate having such high performances that, even under a severe low-temperature condition of 10° C. or lower, no crack is generated in a heat-sensitive mask layer and further that, even when the heat-sensitive mask layer is formed as a thin film, no unevenness is generated in an optical density in transmission. A photosensitive CTP flexographic printing original plate, characterized in that, it comprise at least a support, a photosensitive resin layer and a heat-sensitive mask layer which are sequentially layered, that the heat-sensitive mask layer contains a methoxymethylated polys side resin (A) and a water-soluble polyamide resin (B) containing a basic nitrogen atom in a molecule, and that a glass transition point of the polyimide resin (A) is 0° C. to 30° C.Type: GrantFiled: January 12, 2018Date of Patent: July 20, 2021Assignee: TOYOBO CO., LTD.Inventors: Keisuke Matsuo, Hiromichi Yonekura
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Patent number: 10857826Abstract: The present invention aims to provide a photosensitive CTP flexographic printing original plate wherein no wrinkle is generated during handling of the CTP printing original plate against environmental changes throughout the year and barrier property is also excellent. A water-developable photosensitive CTP flexographic printing original plate which is characterized in that it comprises at least a support, a photosensitive resin layer, a barrier layer and a heat-sensitive mask layer which are sequentially layered, that the barrier layer contains a polyamide resin (A) containing a basic nitrogen atom in a molecule and a polyamide resin (B) containing 40 to 70% by mass of an alkylene glycol structural unit in a molecule, and that a content of the polyamide resin (B) to a total content of the polyamide resin (A) and the polyamide resin (B) is 25 to 52% by mass.Type: GrantFiled: March 27, 2018Date of Patent: December 8, 2020Assignee: TOYOBO CO., LTD.Inventors: Keisuke Matsuo, Hiromichi Yonekura
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Publication number: 20200291273Abstract: An objective is to provide a stretchable conductor sheet which is useful as a material for electrical wiring and electrodes for garment-type electronic devices, the material having excellent durability in terms of washing and durability in terms of perspiration. A fabric provided with an electrode and an electrical wiring, which are formed from a stretchable conductor sheet, is obtained by: providing a film having releasability with a first stretchable conductor layer which is formed from a paste material that uses carbon-based particles as a conductive filler, while using a flexible resin as a binder resin; subsequently forming a second stretchable conductor layer, while using metal-based particles as a conductive filler; laminating a hot melt adhesive layer thereon; superposing the resulting laminate on a fabric after removing unnecessary parts from the laminate by means of partial slits; and subjecting the resulting fabric to hot pressing.Type: ApplicationFiled: March 2, 2017Publication date: September 17, 2020Applicant: TOYOBO CO., LTD.Inventors: Euichul KWON, Sonoko ISHIMARU, Michihiko IRIE, Hiromichi YONEKURA, Shota MORIMOTO
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Publication number: 20200073242Abstract: The present invention aims to provide a CTP flexographic printing original plate having such high performances that, even under a severe low-temperature condition of 10° C. or lower, no crack is generated in a heat-sensitive mask layer and further that, even when the heat-sensitive mask layer is formed as a thin film, no unevenness is generated in an optical density in transmission. A photosensitive CTP flexographic printing original plate, characterized in that, it comprise at least a support, a photosensitive resin layer and a heat-sensitive mask layer which are sequentially layered, that the heat-sensitive mask layer contains a methoxymethylated polys side resin (A) and a water-soluble polyamide resin (B) containing a basic nitrogen atom in a molecule, and that a glass transition point of the polyimide resin (A) is 0° C. to 30° C.Type: ApplicationFiled: January 12, 2018Publication date: March 5, 2020Applicant: TOYOBO CO., LTD.Inventors: Keisuke Matsuo, Hiromichi Yonekura
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Patent number: 10546664Abstract: The purpose of the present invention is to provide a stretchable conductor that can be used to form a film having good repeated stretching durability, a garment-type election device that has a wire using the stretchable conductor, and a method for producing the same. Conductive particles, preferably silver particles, a predetermined quantity of a specific barium sulfate, and a flexible resin component are mixed together to obtain a stretchable conductor composition. A sheet made from the stretchable conductor composition thus obtained has a low initial conductivity, and a high conductivity retention rate when repeatedly stretched. By cutting the stretchable conductor composition into a predetermined shape and affixing the composition to fabric or the like that constitutes a garment, it is possible to achieve a garment-type device having electrical wiring with high stretchability.Type: GrantFiled: January 10, 2017Date of Patent: January 28, 2020Assignee: TOYOBO CO., LTD.Inventors: Hiromichi Yonekura, Satoshi Imahashi, Michihiko Irie, Takashi Kondo, Maki Kinami
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Publication number: 20190375227Abstract: The present invention aims to provide a photosensitive CTP flexographic printing original plate wherein no wrinkle is generated during handling of the CTP printing original plate against environmental changes throughout the year and barrier property is also excellent. A water-developable photosensitive CTP flexographic printing original plate which is characterized in that it comprises at least a support, a photosensitive resin layer, a barrier layer and a heat-sensitive mask layer which are sequentially layered, that the barrier layer contains a polyamide resin (A) containing a basic nitrogen atom in a molecule and a polyamide resin (B) containing 40 to 70% by mass of an alkylene glycol structural unit in a molecule, and that a content of the polyamide resin (B) to a total content of the polyamide resin (A) and the polyamide resin (B) is 25 to 52% by mass.Type: ApplicationFiled: March 27, 2018Publication date: December 12, 2019Applicant: TOYOBO CO., LTD.Inventors: Keisuke Matsuo, Hiromichi Yonekura
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Publication number: 20190077930Abstract: A first object of the present invention is to provide a stretchable conductor sheet that exhibits isotropic conductivity when stretched in a predetermined direction or in a direction perpendicular to the predetermined direction, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet. A second object of the present invention is to provide a stretchable conductor sheet having a small change in specific resistance even when repeatedly twisted, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet. A third object of the present invention is to provide a stretchable conductor sheet having a small change in specific resistance even when repeatedly washed, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet.Type: ApplicationFiled: March 8, 2017Publication date: March 14, 2019Applicant: TOYOBO CO., LTD.Inventors: Michihiko IRIE, Satoshi IMAHASHI, Hiromichi YONEKURA, Takashi KONDO, Maki KINAMI
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Publication number: 20190013111Abstract: The purpose of the present invention is to provide a stretchable conductor that can be used to form a film having good repeated stretching durability, a garment-type election device that has a wire using the stretchable conductor, and a method for producing the same. Conductive particles, preferably silver particles, a predetermined quantity of a specific barium sulfate, and a flexible resin component are mixed together to obtain a stretchable conductor composition. A sheet made from the stretchable conductor composition thus obtained has a low initial conductivity, and a high conductivity retention rate when repeatedly stretched. By cutting the stretchable conductor composition into a predetermined shape and affixing the composition to fabric or the like that constitutes a garment, it is possible to achieve a garment-type device having electrical wiring with high stretchability.Type: ApplicationFiled: January 10, 2017Publication date: January 10, 2019Applicant: TOYOBO CO., LTD.Inventors: Hiromichi YONEKURA, Satoshi IMAHASHI, Michihiko IRIE, Takashi KONDO, Maki KINAMI
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Patent number: 10119045Abstract: The present invention provides an electroconductive paste which is excellent in a stability upon storage for a long period and in an anti-migration property, and capable of forming electrodes, wirings and sheets having a low resistance, an extensibility and a repetitive stretchability. An electroconductive silver paste, characterized in that, it contains a silver powder (A) and a rubber (B) containing a nitrile group, that a ratio by weight of (A)/(B) is within a range of from 77/23 to 90/10, that the silver powder (A) is an amorphous aggregated powder and/or a flaky powder, and that a content of an alkali metal in the nitrile group-containing rubber (B) is 4,000 ppm or less.Type: GrantFiled: January 13, 2016Date of Patent: November 6, 2018Assignee: TOYOBO CO., LTD.Inventors: Takashi Kondo, Hiromichi Yonekura, Satoshi Imahashi, Maki Kinami
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Publication number: 20180022951Abstract: The present invention provides an electroconductive paste which is excellent in a stability upon storage for a long period and in an anti-migration property, and capable of forming electrodes, wirings and sheets having a low resistance, an extensibility and a repetitive stretchability. An electroconductive silver paste, characterized in that, it contains a silver powder (A) and a rubber (B) containing a nitrile group, that a ratio by weight of (A)/(B) is within a range of from 77/23 to 90/10, that the silver powder (A) is an amorphous aggregated powder and/or a flaky powder, and that a content of an alkali metal in the nitrile group-containing rubber (B) is 4,000 ppm or less.Type: ApplicationFiled: January 13, 2016Publication date: January 25, 2018Applicant: TOYOBO CO., LTD.Inventors: Takashi KONDO, Hiromichi YONEKURA, Satoshi IMAHASHI, Maki KINAMI
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Publication number: 20140216285Abstract: The present invention provides a water-developable laminate of photosensitive resin for letterpress printing original plate by which finer pattern can be reproduced excellently upon making a plate and printing. The flexographic printing original plate being developable by water according to the present invention is characterized in that at least a support, a photosensitive resin layer containing 25% by mass or more of latex having gelation degree of 55% or more and an adhesion-preventing layer are successively laminated, and that the adhesion-preventing layer contains a cellulose derivative. The water-developable laminate of photosensitive resin according to the present invention is characterized in that at least a support, an adhesive layer, a photosensitive resin layer containing a water-soluble polymer compound and an adhesion-preventing layer are successively laminated, and that the adhesion-preventing layer contains a cellulose derivative.Type: ApplicationFiled: August 22, 2012Publication date: August 7, 2014Applicant: TOYOBO CO., LTD.Inventors: Kazuya Yoshimoto, Tetsuma Kawakami, Hiromichi Yonekura, Satoshi Takahashi