Patents by Inventor Takayori Ito
Takayori Ito 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: 20230393117Abstract: A biological information measurement device includes: a scattering rate calculating unit configured to calculate a scattering rate of light at an interface between a medium present in a biological object or in a specimen and a particle included in the medium based on received-light intensity of light irradiated onto the biological object or onto the specimen and received via the biological object or via the specimen; and a concentration index calculating unit configured to calculate, based on a correlation between the scattering rate of the light at the interface and a concentration index corresponding to concentration of a target substance that is different from the particle included in the medium, the concentration index corresponding to the scattering rate of the light calculated by the scattering rate calculating unit.Type: ApplicationFiled: August 16, 2023Publication date: December 7, 2023Applicants: FURUKAWA ELECTRIC CO., LTD., TOHOKU UNIVERSITYInventors: Hideaki HASEGAWA, Takayori ITO, Hiroyuki TAMAOKA, Koji KAWAJIRI, Rihito KURODA
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Publication number: 20230204441Abstract: An object detection device includes: an optical fiber at least partially including a sensor optical fiber configured to transmit light with a loss of 0.3 dB/m or more; and a light receiving unit configured to receive, from the optical fiber, the light received by the sensor optical fiber, wherein the object detection device is configured to detect an object based on an intensity of the light received by the light receiving unit.Type: ApplicationFiled: March 3, 2023Publication date: June 29, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Takashi FUJIHATA, Hideaki HASEGAWA, Takayori ITO, Hiroyuki TAMAOKA
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Patent number: 11203673Abstract: A thermoplastic composite material comprising, a fiber bundle having a polypropylene emulsion impregnated therein and having a plurality of reinforcing fibers lined up in a predetermined direction, and satisfies the following conditions (1) to (4); and a formed body: (1) A void content of the thermoplastic composite material is 3% or less, (2) A fiber volume fraction of the thermoplastic composite material is 40% or more and 70% or less, (3) A bending strength of a laminated body, in which a plurality of layers of the thermoplastic composite material has been laminated so that the reinforcing fibers would be lined up in one direction, when bent in the fiber-axis direction and measured in conformity to JIS K7074, is 250 MPa or more, and a bending elastic modulus of the laminated body is 90 GPa or more, and (4) A variation coefficient of the bending strength, when measured at N=5 or more and calculated in conformity to JIS K7074, is within 7%.Type: GrantFiled: May 4, 2018Date of Patent: December 21, 2021Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Motoko Yoshizaki, Makiko Nakano, Takayori Ito, Yukihiro Ikura, Takahiro Iida, Yasumasa Morishima, Hidekazu Hara
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Publication number: 20180251610Abstract: A thermoplastic composite material comprising, a fiber bundle having a polypropylene emulsion impregnated therein and having a plurality of reinforcing fibers lined up in a predetermined direction, and satisfies the following conditions (1) to (4); and a formed body: (1) A void content of the thermoplastic composite material is 3% or less, (2) A fiber volume fraction of the thermoplastic composite material is 40% or more and 70% or less, (3) A bending strength of a laminated body, in which a plurality of layers of the thermoplastic composite material has been laminated so that the reinforcing fibers would be lined up in one direction, when bent in the fiber-axis direction and measured in conformity to JIS K7074, is 250 MPa or more, and a bending elastic modulus of the laminated body is 90 GPa or more, and (4) A variation coefficient of the bending strength, when measured at N=5 or more and calculated in conformity to JIS K7074, is within 7%.Type: ApplicationFiled: May 4, 2018Publication date: September 6, 2018Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Motoko YOSHIZAKI, Makiko NAKANO, Takayori ITO, Yukihiro IKURA, Takahiro IIDA, Yasumasa MORISHIMA, Hidekazu HARA
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Patent number: 9741498Abstract: Provided are a current collector which has an excellent high-rate property and exerts a sufficient safety function when employed in a secondary battery or a capacitor, as well as an electrode, a secondary battery or a capacitor in which said current collector is employed. According to the invention, a current collector is provided which comprises: metal foil; and a conductive layer with a film thickness of 0.1 ?m to 10 ?m formed on a surface of said metal foil. Here, said conductive layer includes a conductive material and a binder material. A melting point of said binder material is 80° C. to 150° C. Further, said binder material shows, in differential scanning calorimetry (DSC) in a range from room temperature to 200° C., one or more endothermic peaks in the heating-up process. In a case where said binder material shows two or more endothermic peaks, each difference between said peaks is 15° C. or more. Moreover, said binder material shows one or more exothermic peaks in the cooling-down process.Type: GrantFiled: July 11, 2013Date of Patent: August 22, 2017Assignees: Furukawa Electric Co., Ltd., UACJ FOIL Corporation, UACJ CorporationInventors: Takahiro Iida, Yasumasa Morishima, Takayori Ito, Hidekazu Hara, Tsugio Kataoka, Mitsuya Inoue, Satoshi Yamabe, Osamu Kato, Yukiou Honkawa, Sohei Saito, Tatsuhiro Yaegashi
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Publication number: 20160322641Abstract: A current collector having high safety, the current collector being capable of stably maintaining the PTC function even when the temperature further increases after realizing the PTC function when used for the electrode structure of electrical storage devices such as non-aqueous electrolyte batteries, electrical double layer capacitors, and lithium ion capacitors; electrode structures; electrical storage devices; and composition for current collectors, is provided. A current collector 100 including a conductive substrate 103 and a resin layer 105 provided onto at least one side of the conductive substrate 103, is provided. Here, the resin layer 105 is obtained by coating a paste onto the conductive substrate 103, followed by cross-linking. The paste includes polyolefin-based emulsion particles 125, a conductive material 121, and a cross-linker 131.Type: ApplicationFiled: November 15, 2013Publication date: November 3, 2016Applicants: UACJ CORPORATION, UACJ FOIL CORPORATION, FURUKAWA ELECTRIC CO., LTD.Inventors: Sohei Saito, Osamu Kato, Yukiou Honkawa, Tatsuhiro Yaegashi, Tsugio Kataoka, Mitsuya Inoue, Satoshi Yamabe, Yasumasa Morishima, Takayori Ito, Hidekazu Hara, Takahiro Iida
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Publication number: 20160042878Abstract: A current collector with high safety which can realize both of a superior conductivity at normal temperature conditions and a superior shut down function at high temperature conditions, is provided. A current collector, including a conductive substrate; and a resin layer provided on at least one side of the conductive substrate, is provided. Here, the resin layer is formed with a paste containing an aggregate of polyolefin-based emulsion particles; and a conductive material. Further, the aggregate has an average particle diameter of 0.5 to 5 ?m.Type: ApplicationFiled: March 26, 2014Publication date: February 11, 2016Applicants: UACJ CORPORATION, UACJ FOIL CORPORATION, FURUKAWA ELECTRIC CO., LTD.Inventors: Osamu Kato, Sohei Saito, Yukiou Honkawa, Tatsuhiro Yaegashi, Tsugio Kataoka, Mitsuya Inoue, Satoshi Yamabe, Yasumasa Morishima, Takayori Ito, Hidekazu Hara, Takahiro Iida
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Publication number: 20150311001Abstract: A current collector which can achieve both of the improvement in battery characteristics by reducing the initial (at ambient temperature) interface resistance and the improvement in safety by the PTC function, when the current collector is used for the electrode structure of electrical storage devices such as non-aqueous electrolyte batteries, electrical double layer capacitors, and lithium ion capacitors; electrode structures; electrical storage devices; and composition for current collectors; are provided. A current collector, including: a conductive substrate 103; and a resin layer 105 provided on at least one side of the conductive substrate 103; is provided. Here, the resin layer is formed by coating a paste including: polyolefin-based emulsion particles 125; and a conductive material 121; onto the conductive substrate 103. The coating weight of the paste is 0.1 to 20 g/m2; and the porosity of the resin layer 105 is 10% (v/v) or less.Type: ApplicationFiled: November 15, 2013Publication date: October 29, 2015Applicants: UACJ Corporation, UACJ Foil Corporation, Furukawa Electric Co., Ltd.Inventors: Osamu Kato, Sohei Saito, Yukiou Honkawa, Tatsuhiro Yaegashi, Tsugio Kataoka, Mitsuya Inoue, Satoshi Yamabe, Yasumasa Morishima, Takayori Ito, Hidekazu Hara, Takahiro Iida
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Publication number: 20150303484Abstract: A current collector which can realize sufficient safety function even when the cell is deformed by external force or when the internal pressure is increased; and an electrode, a secondary battery, and a capacitor using the current collector; are provided. A current collector, including: a metal foil; and a conductive layer formed on a surface of the metal foil; is provided. Here, regarding the current collector, a temperature-resistance curve of the current collector obtained by sandwiching the current collector in between brass electrodes of 1 cm diameter, the measurement of resistance being performed with conditions of 15N of load between the electrodes and temperature being raised from ambient temperature at a rate of 10° C./min satisfies a relation of R(Ta+5)/R(Ta?5)?1, R(Ta+5) being resistance at temperature Ta+5° C. and R(Ta?5) being resistance at temperature Ta?5° C., Ta being a temperature higher than a temperature satisfying a relation of (R(T)/R(T?5))>2.Type: ApplicationFiled: November 18, 2013Publication date: October 22, 2015Applicants: FURUKAWA ELECTRIC CO., LTD., UACJ FOIL CORPORATION, UACJ CORPORATIONInventors: Takahiro Iida, Yasumasa Morishima, Takayori Ito, Hidekazu Hara, Tsugio Kataoka, Satoshi Yamabe, Mitsuya Inoue, Osamu Kato, Sohei Saito, Yukiou Honkawa, Tatsuhiro Yaegashi
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Publication number: 20150294802Abstract: Provided is a current collector which has a PTC layer having room for thermal expansion at elevated temperature while securing sufficient conductivity at normal temperature. According to the invention, a current collector comprising a conductive base material, and a resin layer formed on at least one surface of the conductive base material is provided. The resin layer contains an organic resin and conductive particles. A deposition amount of the resin layer on the conductive base material is 0.5 to 20 g/m2. Rz (ten point average roughness) of the surface of the resin layer is 0.4 to 10 ?m. Sm (average spacing of ruggedness) of the surface of the resin layer is 5 to 200 ?m. An average of resistance of the resin layer measured by the two-terminal method is 0.5 to 50 ?.Type: ApplicationFiled: July 11, 2013Publication date: October 15, 2015Applicants: Furukawa Electric., Ltd., UACJ Foil Corporation, UACJ CorporationInventors: Osamu Kato, Yasumasa Morishima, Takayori Ito, Hidekazu Hara, Takahiro Iida, Tsugio Kataoka, Mitsuya Inoue, Satoshi Yamabe, Yukiou Honkawa, Sohei Saito, Tatsuhiro Yaegashi
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Publication number: 20150280241Abstract: The present invention provides a current collector having a conductive layer which is excellent in adhesion strength and can exhibit a PTC function for stably contributing to safety, when used for an electrode structure for non-aqueous electrolyte batteries or for electrical storage devices. A current collector, including a metal foil and a conductive layer formed on at least one side of the metal foil, the conductive layer being formed partially or entirely on the surface of the metal foil; is provided. Here, the conductive layer contains core shell particles including core particles 114 having insulating crystalline polymer as a main component, and a shell layer 116 having conductivity, the shell layer 116 being formed on the surface of the core particles 114.Type: ApplicationFiled: September 18, 2013Publication date: October 1, 2015Applicants: Furukawa Electric Co., Ltd., UACJ Corporation, UACJ Foil CorporationInventors: Hidekazu Hara, Takahiro Iida, Yasumasa Morishima, Takayori Ito, Sohei Saito, Osamu Kato, Yukiou Honkawa, Tatsuhiro Yaegashi, Tsugio Kataoka, Mitsuya Inoue, Satoshi Yamabe
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Publication number: 20150221452Abstract: Provided are a current collector which has an excellent high-rate property and exerts a sufficient safety function when employed in a secondary battery or a capacitor, as well as an electrode, a secondary battery or a capacitor in which said current collector is employed. According to the invention, a current collector is provided which comprises: metal foil; and a conductive layer with a film thickness of 0.1 ?m to 10 ?m formed on a surface of said metal foil. Here, said conductive layer includes a conductive material and a binder material. A melting point of said binder material is 80° C. to 150° C. Further, said binder material shows, in differential scanning calorimetry (DSC) in a range from room temperature to 200° C., one or more endothermic peaks in the heating-up process. In a case where said binder material shows two or more endothermic peaks, each difference between said peaks is 15° C. or more. Moreover, said binder material shows one or more exothermic peaks in the cooling-down process.Type: ApplicationFiled: July 11, 2013Publication date: August 6, 2015Applicants: Furukawa Electric Co., Ltd., UACJ FOIL Corporation, UACJ CorporationInventors: Takahiro Iida, Yasumasa Morishima, Takayori Ito, Hidekazu Hara, Tsugio Kataoka, Mitsuya Inoue, Satoshi Yamabe, Osamu Kato, Yukiou Honkawa, Sohei Saito, Tatsuhiro Yaegashi
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Publication number: 20150221449Abstract: Provided is a current collector which can secure safety by certainly exhibiting the PTC function when used for an electrode structure of an electrical storage device such as non-aqueous electrolyte batteries, electrical double layer capacitors, lithium ion capacitors, and the like. Here, the current collector shall also be capable of being used for high-speed charge/discharge, having long life, being high in safety, and having excellent productivity. According to the present invention, a current collector 1 including a substrate 3, and a resin layer 5 formed on at least one side of the substrate 3, the resin layer 5 having conductivity, is provided. The current collector 1 satisfies the following conditions of: (1) a degree of swelling of the resin layer 5 with a non-aqueous electrolyte solution is 1% or more and 1000% or less at a PTC realization temperature, and (2) the PTC realization temperature is in the range from 65° C. to 200° C.Type: ApplicationFiled: September 18, 2013Publication date: August 6, 2015Applicants: UACJ Corporation, UACJ Foil Corporation, Furukawa Electric Co., Ltd.Inventors: Sohei Saito, Osamu Kato, Yukiou Honkawa, Tatsuhiro Yaegashi, Tsugio Kataoka, Mitsuya Inoue, Satoshi Yamabe, Yasumasa Morishima, Takayori Ito, Hidekazu Hara, Takahiro Iida
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Publication number: 20150214551Abstract: The present invention provides a current collector foil; and an electrode structure, lithium secondary battery or an electrical double layer capacitor using the current collector foil, which can achieve superior high rate characteristics. Provided is a current collector foil for forming thereon an active material layer containing active material particles, wherein: the current collector foil is provided with a roughened portion; a cross sectional curve of the roughened portion has a box counting dimension of 1.1 or higher; and an average length of waviness motif AW of the cross-sectional curve of the roughened portion is longer than twice of D10, D10 being a particle diameter of the active material particle in particle size cumulative distribution, the active material particle being used for the active material layer formed on the current collector foil.Type: ApplicationFiled: July 11, 2013Publication date: July 30, 2015Applicants: Furukawa Electric Co., Ltd., UACJ Foil Corporation, UACJ CorporationInventors: Takayori Ito, Yasumasa Morishima, Hidekazu Hara, Takahiro Iida, Tsugio Kataoka, Mitsuya Inoue, Satoshi Yamabe, Osamu Kato, Yukiou Honkawa, Sohei Saito, Tatsuhiro Yaegashi
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Publication number: 20100323217Abstract: A material for an electrical/electronic part, which has a resin coating directly formed on at least a part of a metal substrate or at least a part of a metal layer provided on the metal substrate, with the resin coating being formed with a resin composition containing at least one selected from the group consisting of a polyamideimide resin and a polyimide resin, each having a structure represented by formula (I) or (II) in the molecular structure: in which R1, R2, R3, and R4 each represent one selected from a hydrogen atom, an alkyl group, a hydroxyl group, a halogen atom, and an alkoxy group.Type: ApplicationFiled: August 26, 2010Publication date: December 23, 2010Inventors: Akira TACHIBANA, Takayori Ito, Chikahito Sugahara