Patents by Inventor Michihiko Irie

Michihiko Irie 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: 11767397
    Abstract: The present invention aims to provide a resin composition which can form a cured product having a high adhesive property and a high thermal conductivity. A resin composition containing an epoxy compound (A), an amine curing agent (B) and a thermally conductive filler (C), wherein the epoxy compound (A) is in a liquid form and wherein the amine curing agent (B) contains a benzoxazole skeleton.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: September 26, 2023
    Assignee: TOYOBO CO., LTD.
    Inventors: Gota Takimoto, Michihiko Irie
  • Publication number: 20230180865
    Abstract: An object is to provide a garment-type biological information measurement device having a biological contact-type electrode and having excellent durability against washing. A garment-type biological information measurement device comprising an electrode, wherein the electrode comprises a stretchable conductive layer containing a flexible resin and a conductive filler, a stretchable adhesion acceleration layer, a stretchable hot melt adhesive layer, and a garment fabric, in this order.
    Type: Application
    Filed: May 6, 2021
    Publication date: June 15, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Michihiko IRIE, Yusuke SHIMIZU, Yuichiro OMOTE, Satoshi MAEDA
  • Publication number: 20220363849
    Abstract: 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: Application
    Filed: July 19, 2022
    Publication date: November 17, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Michihiko IRIE, Satoshi IMAHASHI, Hiromichi YONEKURA, Takashi KONDO, Maki KINAMI
  • Patent number: 11469010
    Abstract: A stretchable conductor forming paste containing a conductive filler, a polyurethane elastomer having a glass transition temperature (Tg) of ?60° C. to ?10° C. and a urethane group concentration of 3000 to 4500 m equivalent/kg, and an organic solvent. Preferably, a total amount of components excluding the solvent is 100 parts by mass, a total of the conductive filler is 70 to 95 parts by mass, and an amount of the polyurethane elastomer is 5 to 30 parts by mass. The obtained paste is printed or coated and then dried to obtain a stretchable conductor, capable of forming a wiring line having good repeated stretchability.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: October 11, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Yuko Nakao, Michihiko Irie
  • Patent number: 11427689
    Abstract: 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: Grant
    Filed: March 8, 2017
    Date of Patent: August 30, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Michihiko Irie, Satoshi Imahashi, Hiromichi Yonekura, Takashi Kondo, Maki Kinami
  • Patent number: 11357104
    Abstract: The purpose of the present invention is to provide a garment-type electronic device capable of reducing discomfort during the wearing in the garment-type electronic device comprising an electrical wiring using stretchable conductor composition. In a part in contact with a body surface of a garment-type electronic device, a level difference at the boundary between the electrode portion where the conductor is exposed and the wiring portion covered with the insulating cover layer is substantially eliminated, whereby a garment type electronic device with a natural wearing feeling in which discomfort during wearing has been reduced is obtained. Furthermore, by providing the projections and the depressions in the fabric texture on its surface, a more natural wearing feeling is obtained. Such a garment-type electronic device can be produced by a printing transfer method.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: June 7, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Euichul Kwon, Sonoko Ishimaru, Michihiko Irie, Maki Kinami
  • Patent number: 11317509
    Abstract: The purpose of the present invention is to provide a garment-type electronic device capable of reducing discomfort during the wearing in the garment-type electronic device comprising an electrical wiring using stretchable conductor composition. In a part in contact with a body surface of a garment-type electronic device, a level difference at the boundary between the electrode portion where the conductor is exposed and the wiring portion covered with the insulating cover layer is substantially eliminated, whereby a garment type electronic device with a natural wearing feeling in which discomfort during wearing has been reduced is obtained. Furthermore, by providing the projections and the depressions in the fabric texture on its surface, a more natural wearing feeling is obtained. Such a garment-type electronic device can be produced by a printing transfer method.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: April 26, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Euichul Kwon, Sonoko Ishimaru, Michihiko Irie, Maki Kinami
  • Publication number: 20210307666
    Abstract: The purpose of the present invention is to provide a conductive paste for forming a stretchable conductor having washing durability. The conductive paste for forming a stretchable conductor of the present invention includes conductive particles and a flexible resin, wherein the flexible resin has a water content after being immersed in water of 40° C. for 24 hours of 5% by mass or less, and wherein the flexible resin is contained in an amount of 13% by mass to 35% by mass relative to total solids content in the conductive paste for forming a stretchable conductor.
    Type: Application
    Filed: June 16, 2021
    Publication date: October 7, 2021
    Applicant: TOYOBO CO., LTD.
    Inventors: Makoto NAKAMURA, Michihiko IRIE, Takashi KONDO, Haruhiko NARUSAWA
  • Patent number: 11130888
    Abstract: 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: Grant
    Filed: March 2, 2017
    Date of Patent: September 28, 2021
    Assignee: TOYOBO CO., LTD.
    Inventors: Euichul Kwon, Sonoko Ishimaru, Michihiko Irie, Hiromichi Yonekura, Shota Morimoto
  • Publication number: 20210267519
    Abstract: Provided is a garment for measuring biological information having favorable conductivity and stretchability that prevent a wiring and a bonding part from being disconnected by stress or deformation when the garment is put on, taken off, or washed, while detecting a stable electrical signal. In a wiring with a stretchable electrode according to an embodiment of the present invention, the electrode includes an electrically conductive sheet including electrically conductive fine particles and a binder resin, and the wiring incudes an electrically conductive fiber structure including an electrically conductive fiber. A part of a bond between the electrode and the wiring has a peeling strength of 0.5 to 20 N/cm.
    Type: Application
    Filed: July 12, 2019
    Publication date: September 2, 2021
    Inventors: Haruhiko NARUSAWA, Michihiko IRIE, Takashi KONDO
  • Patent number: 10959467
    Abstract: The present invention provides to a wearable smart device having electrical wiring comprising a stretchable conductive composition having excellent in durability such as repeated bending properties and repeated twisting properties, a material for realizing the wearable smart device, and a method for producing the wearable start device. An electrical wiring including a fine line having an electrical line interval of 1 mm or less, preferably the line width of less than 1 mm, is formed by printing a paste for forming a stretchable conductor containing metal-based conductive particles and a non-crosslinked elastomer, and further dried and cured at a low temperature condition of 120° C. for 30 minutes. As a result, the wearable smart device having electrical wiring constituted by fine lines without sagging of the edge is obtained.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: March 30, 2021
    Assignee: TOYOBO CO., LTD.
    Inventors: Yuko Nakao, Satoshi Imahashi, Michihiko Irie, Takashi Kondo, Maki Kinami
  • Publication number: 20210087329
    Abstract: The present invention aims to provide a resin composition which can form a cured product having a high adhesive property and a high thermal conductivity. A resin composition containing an epoxy compound (A), an amine curing agent (B) and a thermally conductive filler (C), wherein the epoxy compound (A) is in a liquid form and wherein the amine curing agent (B) contains a benzoxazole skeleton.
    Type: Application
    Filed: October 7, 2019
    Publication date: March 25, 2021
    Applicant: TOYOBO CO., LTD.
    Inventors: Gota TAKIMOTO, Michihiko IRIE
  • Publication number: 20210007223
    Abstract: The purpose of the present invention is to provide a garment-type electronic device capable of reducing discomfort during the wearing in the garment-type electronic device comprising an electrical wiring using stretchable conductor composition. In a part in contact with a body surface of a garment-type electronic device, a level difference at the boundary between the electrode portion where the conductor is exposed and the wiring portion covered with the insulating cover layer is substantially eliminated, whereby a garment type electronic device with a natural wearing feeling in which discomfort during wearing has been reduced is obtained. Furthermore, by providing the projections and the depressions in the fabric texture on its surface, a more natural wearing feeling is obtained. Such a garment-type electronic device can be produced by a printing transfer method.
    Type: Application
    Filed: September 15, 2020
    Publication date: January 7, 2021
    Applicant: TOYOBO CO., LTD.
    Inventors: Euichul KWON, Sonoko ISHIMARU, Michihiko IRIE, Maki KINAMI
  • Patent number: 10869391
    Abstract: The purpose of the present invention is to provide a garment-type electronic device capable of reducing discomfort during the wearing in the garment-type electronic device comprising an electrical wiring using stretchable conductor composition. In a part in contact with a body surface of a garment-type electronic device, a level difference at the boundary between the electrode portion where the conductor is exposed and the wiring portion covered with the insulating cover layer is substantially eliminated, whereby a garment type electronic device with a natural wearing feeling in which discomfort during wearing has been reduced is obtained. Furthermore, by providing the projections and the depressions in the fabric texture on its surface, a more natural wearing feeling is obtained. Such a garment-type electronic device can be produced by a printing transfer method.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: December 15, 2020
    Assignee: TOYOBO CO., LTD.
    Inventors: Euichul Kwon, Sonoko Ishimaru, Michihiko Irie, Maki Kinami
  • Publication number: 20200352507
    Abstract: The present invention provides a stretchable laminate sheet for a garment for measuring biological information. The stretchable laminate sheet has favorable conductivity and stretchability, and has such an enhanced adhesiveness to a substrate as to prevent peeling and disconnection of an electrode that are caused by stress and deformation when the garment is put on, taken off, and washed, while detecting a stable electrical signal. The stretchable laminate sheet of the present invention at least includes a stretchable insulating layer having adhesiveness and a stretchable conductor layer. The stretchable laminate sheet has a 90 degree peel strength between the stretchable insulating layer and the adherend layer of 1.0 N/cm or more.
    Type: Application
    Filed: October 1, 2018
    Publication date: November 12, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Haruhiko NARUSAWA, Michihiko IRIE, Takashi KONDO
  • Publication number: 20200315534
    Abstract: An object of the present invention is to provide a stretchable laminated sheet which is mainly used for garment for measuring biological information and which is excellent in adhesiveness to a garment, has favorable conductivity and stretchability, has moisture permeability high enough for moisture and sweat to be dissipated, and allows reduction of stuffiness, rash and discomfort. A stretchable laminated sheet of the present invention, brought into contact with skin for measuring a biological signal, comprises a stretchable insulating film layer having adhesiveness and a stretchable film layer having electrical conductivity, wherein the stretchable laminated sheet has a thickness of 10 to 800 ?m and a moisture permeability of 300 to 30,000 g/m·24h, and an adhesive strength against peeling at 90 degrees between layers is preferably 0.5 N/cm or more, and the present invention constitutes a garment for measuring biological information having such a sheet as a plurality of skin contact electrodes.
    Type: Application
    Filed: October 1, 2018
    Publication date: October 8, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Haruhiko NARUSAWA, Michihiko IRIE, Takashi KONDO
  • Publication number: 20200291273
    Abstract: 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: Application
    Filed: March 2, 2017
    Publication date: September 17, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Euichul KWON, Sonoko ISHIMARU, Michihiko IRIE, Hiromichi YONEKURA, Shota MORIMOTO
  • Publication number: 20200258655
    Abstract: A stretchable conductor forming paste containing a conductive filler, a polyurethane elastomer having a glass transition temperature (Tg) of ?60° C. to ?10° C. and a urethane group concentration of 3000 to 4500 m equivalent/kg, and an organic solvent. Preferably, a total amount of components excluding the solvent is 100 parts by mass, a total of the conductive filler is 70 to 95 parts by mass, and an amount of the polyurethane elastomer is 5 to 30 parts by mass. The obtained paste is printed or coated and then dried to obtain a stretchable conductor, capable of forming a wiring line having good repeated stretchability.
    Type: Application
    Filed: August 22, 2018
    Publication date: August 13, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Yuko NAKAO, Michihiko IRIE
  • Publication number: 20200245934
    Abstract: A stretchable electrode, wherein the stretchable electrode: is brought into contact with skin for measuring biological signals, has an area of 1 to 500 cm2, has a thickness of 10 to 800 ?m, and contains an organic compound having a molecular weight of 2,000 or less, and a content of the organic compound is 1 to 5,000 ppm The stretchable electrode is safe for use on skin, does not cause a skin rash or inflammation of the skin caused by low molecular weight organic components, and is excellent in washing durability.
    Type: Application
    Filed: August 22, 2018
    Publication date: August 6, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Haruhiko NARUSAWA, Michihiko IRIE, Takashi KONDO
  • Patent number: 10546664
    Abstract: 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: Grant
    Filed: January 10, 2017
    Date of Patent: January 28, 2020
    Assignee: TOYOBO CO., LTD.
    Inventors: Hiromichi Yonekura, Satoshi Imahashi, Michihiko Irie, Takashi Kondo, Maki Kinami