Patents by Inventor Teppei ARAKI
Teppei ARAKI 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: 11883200Abstract: A biosignal measurement apparatus is used by being affixed on a living body. The apparatus includes an affixed part that is a sheet, in which a signal-acquiring section of multiple electrodes and wiring connected to each of the electrodes are formed, and which can be freely expanded, contracted and bent and is adhesive; and a substrate that is connected to the wiring and on which a signal-processing circuit for wirelessly transmitting biosignals obtained through the wiring is mounted. The signal-acquiring section is exposed on the surface of the affixed part and the affixed part and the substrate are stacked so that the back surface of the affixed part faces the substrate.Type: GrantFiled: January 28, 2022Date of Patent: January 30, 2024Assignee: Osaka UniversityInventors: Tsuyoshi Sekitani, Takafumi Uemura, Teppei Araki, Shusuke Yoshimoto
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Patent number: 11786162Abstract: Provided is an electrode sheet allowing easy connection of a wiring that is extended, when required, to a measurement position on a living body. The electrode sheet (main sheet (1), auxiliary sheet (10)) includes a sheet-shaped flexible substrate (2, 11), wirings (3, 12) formed on the flexible substrate (2, 11), electrodes (5, 14) formed on the flexible substrate (2, 11) and electrically connected to the wirings (3, 12), and an insulating layer (4, 13) laid on the flexible substrate (2, 11) in such a manner that the wirings (3, 12) are overlaid with the insulating layer (4, 13) while the electrodes (5, 14) are exposed. The electrodes (5, 14) are formed of a conductive material in which conductive particles are dispersed in a thermoplastic resin.Type: GrantFiled: August 17, 2017Date of Patent: October 17, 2023Assignees: Osaka University, Nippon Mektron, Ltd.Inventors: Tsuyoshi Sekitani, Takafumi Uemura, Teppei Araki, Shusuke Yoshimoto, Masayuki Iwase, Akio Yoshida, Hideki Satake
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Patent number: 11707219Abstract: An electrode sheet is capable of suppressing an influence of noise that is applied on a wire, and a biological signal measuring device uses the electrode sheet. The electrode sheet is provided with a sheet, a biological signal receiving electrode formed at the sheet and exposed from the sheet, a biological signal amplifier formed at the sheet, an interface part for connection to an external biological signal processing unit, a first wire that connects the biological signal receiving electrode and an input part of the biological signal amplifier to each other, and a second wire that connects the interface part and an output part of the biological signal amplifier to each other.Type: GrantFiled: May 25, 2017Date of Patent: July 25, 2023Assignee: Osaka UniversityInventors: Tsuyoshi Sekitani, Takafumi Uemura, Teppei Araki, Shusuke Yoshimoto
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Patent number: 11509123Abstract: A wiring sheet includes one or more carbon wires each of which is one of a signal line and a power supply line, and which are conductors including carbon as a main material and have flexibility; and an insulation sheet that encloses substantially an entirety of the one or more carbon wires, includes an electrical insulator as a main material, and has flexibility.Type: GrantFiled: July 25, 2017Date of Patent: November 22, 2022Assignee: OSAKA UNIVERSITYInventors: Tsuyoshi Sekitani, Takafumi Uemura, Shusuke Yoshimoto, Teppei Araki, Yuki Noda, Takayasu Sakurai, Tokihiko Mori, Makoto Takamiya
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Publication number: 20220142577Abstract: A biosignal measurement apparatus is used by being affixed on a living body. The apparatus includes an affixed part that is a sheet, in which a signal-acquiring section of multiple electrodes and wiring connected to each of the electrodes are formed, and which can be freely expanded, contracted and bent and is adhesive; and a substrate that is connected to the wiring and on which a signal-processing circuit for wirelessly transmitting biosignals obtained through the wiring is mounted. The signal-acquiring section is exposed on the surface of the affixed part and the affixed part and the substrate are stacked so that the back surface of the affixed part faces the substrate.Type: ApplicationFiled: January 28, 2022Publication date: May 12, 2022Inventors: Tsuyoshi SEKITANI, Takafumi UEMURA, Teppei ARAKI, Shusuke YOSHIMOTO
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Publication number: 20220056295Abstract: [Problem] To provide an electroconductive ink suitable for an inexpensive carbon wiring substrate having a wide strain sensing range, and a carbon wiring substrate in which the electroconductive ink is used. [Solution] An electroconductive ink characterized by including a carbonaceous electroconductive material (A), a binder resin (B) including a cellulose compound (B1) and a poly N-vinyl compound (B2), and a solvent (C), the electroconductive ink including 0.5-23 parts by mass of the binder resin (B) with respect to 100 parts by mass of the carbonaceous electroconductive material (A), the mass blending ratio of the cellulose compound (B1) and the poly N-vinyl compound (B2) being 80:20 to 40:60, and the solvent (C) including water (C1). A carbon wiring substrate having a wiring pattern formed using the electroconductive ink.Type: ApplicationFiled: September 13, 2019Publication date: February 24, 2022Applicants: OSAKA UNIVERSITY, SHOWA DENLO K.K.Inventors: Teppei ARAKI, Tsuyoshi SEKITANI, Jun KUWAHARA, Nobuaki ISHII, Hideki OHATA
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Patent number: 11234645Abstract: A biosignal measurement apparatus that is used by being affixed on a living body is provided with: an affixed part that is a sheet, in which a signal-acquiring section of multiple electrodes and wiring connected to each of the electrodes are formed, and which can be freely expanded, contracted and bent and is adhesive; and a substrate that is connected to the wiring and on which a signal-processing circuit for wirelessly transmitting biosignals obtained through the wiring is mounted. The signal-acquiring section is exposed on the surface of the affixed part and the affixed part and the substrate are stacked so that the back surface of the affixed part faces the substrate.Type: GrantFiled: August 5, 2016Date of Patent: February 1, 2022Assignee: OSAKA UNIVERSITYInventors: Tsuyoshi Sekitani, Takafumi Uemura, Teppei Araki, Shusuke Yoshimoto
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Publication number: 20210328417Abstract: A wiring sheet includes one or more carbon wires each of which is one of a signal line and a power supply line, and which are conductors including carbon as a main material and have flexibility; and an insulation sheet that encloses substantially an entirety of the one or more carbon wires, includes an electrical insulator as a main material, and has flexibility.Type: ApplicationFiled: July 25, 2017Publication date: October 21, 2021Inventors: Tsuyoshi SEKITANI, Takafumi UEMURA, Shusuke YOSHIMOTO, Teppei ARAKI, Yuki NODA, Takayasu SAKURAI, Tokihiko MORI, Makoto TAKAMIYA
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Publication number: 20200291274Abstract: To provide an adhesive sheet, the sheet increasing manufacturing efficiency of products including an adhesive agent layer, while using the adhesive agent layer to which an electro-conductive organic polymer compound is added. An adhesive sheet for use in applying a wiring board to a surface onto which the wiring board is to be applied, the adhesive sheet is constituted by an adhesive agent layer including an electro-conductive organic polymer compound and an adhesive material; a first releasing sheet provided on front surface of the adhesive agent layer; and a second releasing sheet provided on a back surface corresponding to a back surface of the front surface in the adhesive agent layer.Type: ApplicationFiled: March 12, 2020Publication date: September 17, 2020Inventors: Masayuki IWASE, Teppei ARAKI, Tsuyoshi SEKITANI, Shusuke YOSHIMOTO
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Publication number: 20190290158Abstract: An electrode sheet is capable of suppressing an influence of noise that is applied on a wire, and a biological signal measuring device uses the electrode sheet. The electrode sheet is provided with a sheet, a biological signal receiving electrode formed at the sheet and exposed from the sheet, a biological signal amplifier formed at the sheet, an interface part for connection to an external biological signal processing unit, a first wire that connects the biological signal receiving electrode and an input part of the biological signal amplifier to each other, and a second wire that connects the interface part and an output part of the biological signal amplifier to each other.Type: ApplicationFiled: May 25, 2017Publication date: September 26, 2019Inventors: Tsuyoshi SEKITANI, Takafumi UEMURA, Teppei ARAKI, Shusuke YOSHIMOTO
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Publication number: 20190216352Abstract: Provided is an electrode sheet allowing easy connection of a wiring that is extended, when required, to a measurement position on a living body. The electrode sheet (main sheet (1), auxiliary sheet (10)) includes a sheet-shaped flexible substrate (2, 11), wirings (3, 12) formed on the flexible substrate (2, 11), electrodes (5, 14) formed on the flexible substrate (2, 11) and electrically connected to the wirings (3, 12), and an insulating layer (4, 13) laid on the flexible substrate (2, 11) in such a manner that the wirings (3, 12) are overlaid with the insulating layer (4, 13) while the electrodes (5, 14) are exposed. The electrodes (5, 14) are formed of a conductive material in which conductive particles are dispersed in a thermoplastic resin.Type: ApplicationFiled: August 17, 2017Publication date: July 18, 2019Inventors: Tsuyoshi SEKITANI, Takafumi UEMURA, Teppei ARAKI, Shusuke YOSHIMOTO, Masayuki IWASE, Akio YOSHIDA, Hideki SATAKE
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Publication number: 20190029595Abstract: A biosignal measurement apparatus (10) that is used by being affixed on a living body is provided with: an affixed part (115) that is a sheet, in which a signal-acquiring section (110) of multiple electrodes and wiring connected to each of the electrodes are formed, and which can be freely expanded, contracted and bent and is adhesive; and a substrate (500) that is connected to the wiring and on which a signal-processing circuit for wirelessly transmitting biosignals obtained through the wiring is mounted. The signal-acquiring section (110) is exposed on the surface of the affixed part (115) and the affixed part (115) and the substrate (500) are stacked so that the back surface of the affixed part (115) faces the substrate.Type: ApplicationFiled: August 5, 2016Publication date: January 31, 2019Inventors: Tsuyoshi SEKITANI, Takafumi UEMURA, Teppei ARAKI, Shuusuke YOSHIMOTO
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Patent number: 10099291Abstract: Provided are a metal nanowire production method capable of producing long and thin metal nanowires, and metal nanowires produced thereby. A metal nanowire production method comprising, a step for preparing a solution containing a metal salt, a polymer, at least one selected from a group consisting of halides, sulfides, carbonates, and sulfates, and an aliphatic alcohol, and a step for heating and reacting the solution at the temperature of 100° C. to 250° C. for 10 minutes or more while maintaining a practical shear stress applied to the solution at 10 mPa·m or less, wherein, during the heating and reacting step, ultraviolet-visible absorption spectrum change of the solution is measured, and a reaction time is controlled on the basis of the ultraviolet-visible absorption spectrum information.Type: GrantFiled: May 26, 2014Date of Patent: October 16, 2018Assignees: SHOWA DENKO K.K., OSAKA UNIVERSITYInventors: Katsuaki Suganuma, Jinting Jiu, Masaya Nogi, Tohru Sugahara, Teppei Araki, Hiroshi Uchida, Hideki Ohata, Masanao Hara, Eri Okazaki
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Publication number: 20160121403Abstract: Provided are a metal nanowire production method capable of producing long and thin metal nanowires, and metal nanowires produced thereby. A metal nanowire production method comprising, a step for preparing a solution containing a metal salt, a polymer, at least one selected from a group consisting of halides, sulfides, carbonates, and sulfates, and an aliphatic alcohol, and a step for heating and reacting the solution at the temperature of 100° C. to 250° C. for 10 minutes or more while maintaining a practical shear stress applied to the solution at 10 mPa·m or less, wherein, during the heating and reacting step, ultraviolet-visible absorption spectrum change of the solution is measured, and a reaction time is controlled on the basis of the ultraviolet-visible absorption spectrum information.Type: ApplicationFiled: May 26, 2014Publication date: May 5, 2016Applicants: SHOWA DENKO K.K., OSAKA UNIVERSITYInventors: Katsuaki SUGANUMA, Jinting JIU, Masaya NOGI, Tohru SUGAHARA, Teppei ARAKI, Hiroshi UCHIDA, Hideki OHATA, Masanao HARA, Eri OKAZAKI