Patents by Inventor Naoya Takashima
Naoya Takashima 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: 11973185Abstract: Provided is a method for producing a sulfide solid electrolyte having a high purity as side reaction hardly occurs, and having a high ionic conductivity, in a simplified manner. The method is for producing a sulfide solid electrolyte containing a lithium atom, a sulfur atom, a phosphorus atom and a halogen atom, comprising separately preparing a complex (1) containing a sulfide that contains a lithium atom, a sulfur atom and a phosphorus atom, as a constituent element, and a complex (2) containing a halide that contains a lithium atom and a halogen atom, as a constituent element, and mixing the complex (1) and the complex (2).Type: GrantFiled: May 6, 2021Date of Patent: April 30, 2024Assignee: Idemitsu Kosan Co., Ltd.Inventors: Naoya Masuda, Atsushi Yao, Akito Takashima, Takehiro Fujita, Yusuke Iseki
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Patent number: 10656210Abstract: Problem: To accurately detect the state of charge of a secondary battery regardless of the state of the same. Resolution Means: A secondary battery state detection device 1 for detecting the state of a secondary battery 14 has a measurement unit (voltage sensor 11) for measuring or estimating the open-circuit voltage of the secondary battery, a determination unit (control unit 10) for determining a state of charge by applying the open-circuit voltage measured or estimated by the measurement unit to a correlation equation expressing the relationship between the open-circuit voltage and state of charge, a calculation unit (control unit 10) for calculating a state of charge on the basis of the internal resistance of the secondary battery, and a correction unit (control unit 10) for correcting the correlation equation of the determination unit if the values of the state of charge determined by the determination unit and the state of charge calculated by the calculation unit differ.Type: GrantFiled: June 2, 2017Date of Patent: May 19, 2020Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Naoya Takashima, Noriyasu Iwane
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Patent number: 10466302Abstract: [Object] To detect states of a plurality of secondary batteries whose kinds are different with high accuracy.Type: GrantFiled: September 11, 2015Date of Patent: November 5, 2019Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Noriyasu Iwane, Koichi Yokoyama, Naoya Takashima, Taiji Mitsuyama, Antal Kovats, Tamas Mihalffy, Lorand Romvari
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Patent number: 10436847Abstract: Described herein are techniques to accurately detect that a secondary battery has been replaced. A secondary battery state detecting device detects a state of a secondary battery installed in a vehicle. The device includes a control unit that learns element values of an equivalent circuit of the secondary battery on the basis of a voltage and a current of the secondary battery. The control unit also compares the element values obtained through learning at different timings and, when at least one of the element values has changed more than or equal to a predetermined threshold value, determines that the secondary battery has been replaced.Type: GrantFiled: September 30, 2016Date of Patent: October 8, 2019Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Noriyasu Iwane, Naoya Takashima, Taiji Mitsuyama
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Patent number: 10393820Abstract: To provide a secondary battery state detecting device that decreases the deterioration in capacity of the secondary battery and is low in arithmetic cost. A secondary battery state detecting device that detects a state of a secondary battery includes discharge means (discharge circuit (15)) for subjecting the secondary battery (14) to a pulse discharge, acquiring means (controller (10)) for controlling the discharge means to subject the secondary battery to at least one pulse discharge, and acquiring a time variation of a voltage value at that time, calculating means (controller (10)) for calculating a parameter of a predetermined function having time as a variable by fitting the variation of the voltage value acquired by the acquiring means using the predetermined function, and detecting means (controller (10)) for detecting the state of the secondary battery on the basis of the parameter of the predetermined function calculated by the calculating means.Type: GrantFiled: September 4, 2015Date of Patent: August 27, 2019Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Taiji Mitsuyama, Noriyasu Iwane, Koichi Yokoyama, Naoya Takashima, Antal Kovats, Tamas Mihalffy, Lorand Romvari
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Patent number: 10393814Abstract: [Object] To accurately detect states of a variety of types of secondary batteries even in a low-current range.Type: GrantFiled: January 14, 2016Date of Patent: August 27, 2019Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Naoya Takashima, Noriyasu Iwane, Koichi Yokoyama
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Patent number: 10396407Abstract: A secondary battery internal temperature estimation device that estimates a secondary battery's internal temperature regardless of the secondary battery's type or state of degradation, the device including: a control unit that estimates the secondary battery's internal temperature on the basis of a relational equation showing a relationship between an external temperature and the secondary battery's internal temperature. A control unit calculates element values of an equivalent circuit of the secondary battery, determines a coefficient of the relational equation on the basis of the element values of the equivalent circuit calculated by the control unit, and applies the coefficient obtained by the control unit to the relational equation. The control unit estimates the secondary battery's internal temperature on the basis of the relational equation to which the coefficient has been applied by the control unit.Type: GrantFiled: September 16, 2016Date of Patent: August 27, 2019Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Taiji Mitsuyama, Noriyasu Iwane, Naoya Takashima
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Patent number: 10323852Abstract: Provided is a vehicle shutter capable of detecting a flap to which power transmission is cut off by providing turn restriction units each having a simple structure in flaps. The vehicle shutter is provided with: a plurality of flaps 13 capable of opening and closing an outside air introduction path 8 for introducing outside air into an engine compartment and arranged in parallel to each other so as to cross the outside air introduction path 8; a linkage operation section linking the flaps 13 with each other to perform an opening/closing operation of the flaps; a drive section driving the flaps 13 to be open and closed through the linkage operation section; an abnormality detection section detecting an abnormality of the flaps 13 on the basis of an operating state of the drive section; and an abnormality notification section notifying the abnormality to a user on the basis of output from the abnormality detection section.Type: GrantFiled: May 13, 2014Date of Patent: June 18, 2019Assignees: MAZDA MOTOR CORPORATION, STARLITE CO., LTD.Inventors: Yuhki Takanaga, Kazuma Kondou, Manabu Yamaoka, Yoshimitsu Hayamizu, Naoya Takashima
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Patent number: 10295605Abstract: A state detecting method and device of a secondary battery correct impact resulting from state quantities caused by variation and calculate a state of charge with high accuracy. The state detecting method includes a first step of acquiring a detected voltage value and a detected current value, a second step of acquiring state quantities caused by variation such as a detected temperature value, a third step of determining if the detected voltage value is the voltage threshold value or greater, a fourth step of determining if the detected current value is the current threshold value or less, a fifth step of determining if a duration time of the current threshold value or less has elapsed a determination time, a sixth step of setting a state of charge in a reference state as the state of charge, and a seventh step of correcting the state of charge in the reference state.Type: GrantFiled: August 26, 2015Date of Patent: May 21, 2019Assignees: FURUKAWA AUTOMOTIVE SYSTEMS INC., FURUKAWA ELECTRIC CO., LTD.Inventors: Naoya Takashima, Noriyasu Iwane, Koichi Yokoyama, Shinichi Nomoto
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Publication number: 20170269165Abstract: Problem: To accurately detect the state of charge of a secondary battery regardless of the state of the same. Resolution Means: A secondary battery state detection device 1 for detecting the state of a secondary battery 14 has a measurement unit (voltage sensor 11) for measuring or estimating the open-circuit voltage of the secondary battery, a determination unit (control unit 10) for determining a state of charge by applying the open-circuit voltage measured or estimated by the measurement unit to a correlation equation expressing the relationship between the open-circuit voltage and state of charge, a calculation unit (control unit 10) for calculating a state of charge on the basis of the internal resistance of the secondary battery, and a correction unit (control unit 10) for correcting the correlation equation of the determination unit if the values of the state of charge determined by the determination unit and the state of charge calculated by the calculation unit differ.Type: ApplicationFiled: June 2, 2017Publication date: September 21, 2017Inventors: Naoya TAKASHIMA, Noriyasu IWANE
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Publication number: 20170016962Abstract: A secondary battery state detecting device (1) that detects a state of a secondary battery (14) installed in a vehicle, the device including: a learning means (control unit (10)) that learns element values of an equivalent circuit of the secondary battery (14) on the basis of a voltage and a current of the secondary battery (14); and a determination means (control unit (10)) that compares the element values obtained through learning at different timings by the learning means and, when at least one of the element values has changed more than or equal to a predetermined threshold value, determines that the secondary battery (14) has been replaced.Type: ApplicationFiled: September 30, 2016Publication date: January 19, 2017Inventors: Noriyasu IWANE, Naoya TAKASHIMA, Taiji MITSUYAMA
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Publication number: 20170012327Abstract: Problem To estimate an accurate internal temperature of a secondary battery, regardless of the type and state of degradation of the secondary battery.Type: ApplicationFiled: September 16, 2016Publication date: January 12, 2017Inventors: Taiji MITSUYAMA, Noriyasu IWANE, Naoya TAKASHIMA
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Publication number: 20160131716Abstract: [Object] To accurately detect states of a variety of types of secondary batteries even in a low-current range.Type: ApplicationFiled: January 14, 2016Publication date: May 12, 2016Inventors: Naoya TAKASHIMA, Noriyasu IWANE, Koichi YOKOYAMA
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Patent number: 9318815Abstract: An insulating body-forming part is formed on a border between a surface of a crimp terminal formed of an aluminum material and a conductive contact body provided on the surface and containing a nobler metal material than the aluminum material.Type: GrantFiled: June 10, 2013Date of Patent: April 19, 2016Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Kengo Mitose, Naoya Takashima, Yukihiro Kawamura
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Publication number: 20160003912Abstract: [Object] To detect states of a plurality of secondary batteries whose kinds are different with high accuracy.Type: ApplicationFiled: September 11, 2015Publication date: January 7, 2016Inventors: Noriyasu IWANE, Koichi YOKOYAMA, Naoya TAKASHIMA, Taiji MITSUYAMA, Antal KOVATS, Tamas MIHALFFY, Lorand ROMVARI
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Publication number: 20150377978Abstract: To provide a secondary battery state detecting device that decreases the deterioration in capacity of the secondary battery and is low in arithmetic cost. A secondary battery state detecting device that detects a state of a secondary battery includes discharge means (discharge circuit (15)) for subjecting the secondary battery (14) to a pulse discharge, acquiring means (controller (10)) for controlling the discharge means to subject the secondary battery to at least one pulse discharge, and acquiring a time variation of a voltage value at that time, calculating means (controller (10)) for calculating a parameter of a predetermined function having time as a variable by fitting the variation of the voltage value acquired by the acquiring means using the predetermined function, and detecting means (controller (10)) for detecting the state of the secondary battery on the basis of the parameter of the predetermined function calculated by the calculating means.Type: ApplicationFiled: September 4, 2015Publication date: December 31, 2015Inventors: Taiji MITSUYAMA, Noriyasu IWANE, Koichi YOKOYAMA, Naoya TAKASHIMA, Antal KOVATS, Tamas MIHALFFY, Lorand ROMVARI
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Publication number: 20150362557Abstract: A state detecting method and device of a secondary battery correct impact resulting from state quantities caused by variation and calculate a state of charge with high accuracy. The state detecting method includes a first step of acquiring a detected voltage value and a detected current value, a second step of acquiring state quantities caused by variation such as a detected temperature value, a third step of determining if the detected voltage value is the voltage threshold value or greater, a fourth step of determining if the detected current value is the current threshold value or less, a fifth step of determining if a duration time of the current threshold value or less has elapsed a determination time, a sixth step of setting a state of charge in a reference state as the state of charge, and a seventh step of correcting the state of charge in the reference state.Type: ApplicationFiled: August 26, 2015Publication date: December 17, 2015Applicants: FURUKAWA AUTOMOTIVE SYSTEMS INC., FURUKAWA ELECTRIC CO., LTD.Inventors: Naoya TAKASHIMA, Noriyasu IWANE, Koichi YOKOYAMA, Shinichi NOMOTO
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Publication number: 20140335778Abstract: Provided is a vehicle shutter capable of detecting a flap to which power transmission is cut off by providing turn restriction units each having a simple structure in flaps. The vehicle shutter is provided with: a plurality of flaps 13 capable of opening and closing an outside air introduction path 8 for introducing outside air into an engine compartment and arranged in parallel to each other so as to cross the outside air introduction path 8; a linkage operation section linking the flaps 13 with each other to perform an opening/closing operation of the flaps; a drive section driving the flaps 13 to be open and closed through the linkage operation section; an abnormality detection section detecting an abnormality of the flaps 13 on the basis of an operating state of the drive section; and an abnormality notification section notifying the abnormality to a user on the basis of output from the abnormality detection section.Type: ApplicationFiled: May 13, 2014Publication date: November 13, 2014Applicants: MAZDA MOTOR CORPORATION, STARLITE CO., LTD.Inventors: Yuki TAKANAGA, Kazuma KONDO, Manabu YAMAOKA, Yoshimitsu HAYAMIZU, Naoya TAKASHIMA
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Patent number: 8622775Abstract: In a connection structural body, an aluminum electric wire tip part and a crimp terminal are connected to each other. The aluminum electric wire tip part is an exposed tip part of an insulated wire including an aluminum core wire and an insulating cover for covering the aluminum core wire. The crimp terminal includes a wire barrel section for pressure-bonding and thus connecting the aluminum electric wire tip part and is formed of a metal material having a higher potential than that of the aluminum core wire. The aluminum electric wire tip part is covered with a cover solder and/or a cover resin, pressure-bonded, and connected to the wire barrel section such that the aluminum electric wire tip part is covered with the cover and/or the cover resins, with no gap, from an insulating cover tip part to a rear end portion of the wire barrel section.Type: GrantFiled: August 6, 2012Date of Patent: January 7, 2014Assignees: Furukawa Electric Co., Ltd., Furukawa Automotive Systems Inc.Inventors: Naoya Takashima, Kengo Mitose, Yukihiro Kawamura
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Publication number: 20130273787Abstract: An insulating body-forming part is formed on a border between a surface of a crimp terminal formed of an aluminum material and a conductive contact body provided on the surface and containing a nobler metal material than the aluminum material.Type: ApplicationFiled: June 10, 2013Publication date: October 17, 2013Inventors: Kengo Mitose, Naoya Takashima, Yukihiro Kawamura