Patents by Inventor Tomoya Kubota
Tomoya Kubota 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: 11948714Abstract: A soft magnetic material for soft magnetic particles with a high filling rate. The soft magnetic material contains first soft magnetic particles and second soft magnetic particles with a larger average particle size than the first soft magnetic particles. The first soft magnetic particles have an average particle size in the range of 0.5 to 10 ?m, and the first soft magnetic particles have a nonpolar hydrocarbon group on their surfaces.Type: GrantFiled: December 11, 2020Date of Patent: April 2, 2024Assignee: Murata Manufacturing Co., Ltd.Inventors: Yuya Ishida, Katsutoshi Uji, Hironobu Kubota, Tomoya Ooshima
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Patent number: 10193159Abstract: A current collector for a secondary battery (1) of the present invention includes a resin layer (2) having electrical conductivity, and an ion barrier layer (3) provided on the surface of the resin layer (2). The ion barrier layer (3) contains ion trapping particles (6) in which metal compounds (5) are provided on the surfaces of metal containing particles (4). The ion trapping particles (6) are continuously provided from an interface (7) between the resin layer (2) and the ion barrier layer (3) toward a surface (3a) of the ion barrier layer (3). Thus, the ion barrier layer (3) prevents from the entry of ions, so that the ion adsorption in the current collector (1) can be decreased.Type: GrantFiled: April 9, 2010Date of Patent: January 29, 2019Assignee: NISSAN MOTOR CO., LTD.Inventors: Chizuru Matsuyama, Yasuyuki Tanaka, Takashi Honda, Shigeo Ibuka, Yoshiaki Nitta, Satoru Ichikawa, Manabu Kaseda, Tomoya Kubota, Haruyuki Saito, Keisuke Shimamoto, Kana Sato, Yukinari Kato, Hideaki Horie
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Patent number: 10033033Abstract: A non-aqueous electrolyte secondary battery has the internal resistance of 10 m?/Ah or less (SOC of 50%) and has a power generating element containing the following: a positive electrode obtained by forming, on the surface of a positive electrode current collector, a positive electrode active substance layer containing a positive electrode active substance; a negative electrode obtained by forming, on the surface of a negative electrode current collector, a negative electrode active substance layer containing a negative electrode active substance; and a separator. The positive electrode active substance is made to contain a spinel type lithium manganese composite oxide and a lithium nickel-based composite oxide, and the mixing ratio of the lithium nickel-based composite oxide is 50 to 70% by weight relative to the total 100% by weight of the spinel type lithium manganese composite oxide and the lithium nickel-based composite oxide.Type: GrantFiled: April 23, 2014Date of Patent: July 24, 2018Assignee: Nissan Motor Co., Ltd.Inventors: Kenji Ohara, Yoshiaki Nitta, Gentaro Kano, Tomoya Kubota, Masanori Aoyagi
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Patent number: 9666858Abstract: A negative electrode for a secondary battery according to the present invention has a collector and a negative electrode active material layer formed on a surface of the collector and containing negative electrode active material particles. In the negative electrode active material layer, an insulating material is arranged between the negative electrode active material particles so as not to develop conductivity by a percolation path throughout the negative electrode active material layer. It is possible in this configuration to effectively prevent the occurrence of a short-circuit current due to an internal short circuit and the generation of heat due to such short-circuit current flow in the secondary battery while securing the battery performance of the secondary battery.Type: GrantFiled: May 25, 2011Date of Patent: May 30, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Kenji Ohara, Sohei Suga, Yasuo Ohta, Tomoya Kubota, Kazuyuki Sakamoto, Takaaki Abe, Satoru Ichikawa, Kenji Hosaka, Kosuke Hagiyama, Hiroshi Miyakubo
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Patent number: 9490646Abstract: In a device for controlling an assembled battery provided with a plurality of single batteries, the device includes a capacity adjustment section for adjusting a capacity such that voltages of the single batteries are equalized at a targeted voltage, an internal state detection section for detecting terminal voltages or SOC of the single batteries and for detecting, based on the detected terminal voltages/SOC, a voltage/SOC difference among the single batteries as voltage-difference/SOC-difference data, and a time-series data storage for storing the voltage-difference/SOC-difference data in time-series. Also provided is a prediction section for more appropriately predicting time when the assembled battery becomes an abnormal state, based on a time-dependent change in the voltage-difference/SOC-difference data detected in a voltage/SOC region different from the targeted voltage by a predetermined voltage, among the stored time-series voltage-difference/SOC-difference data.Type: GrantFiled: December 9, 2010Date of Patent: November 8, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Tomoya Kubota, Yasuhito Miyazaki, Yukinari Kato, Yoshio Shimoida
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Publication number: 20160190549Abstract: A non-aqueous electrolyte secondary battery has the internal resistance of 10 ?/Ah or less (SOC of 50%) and has a power generating element containing the following: a positive electrode obtained by forming, on the surface of a positive electrode current collector, a positive electrode active substance layer containing a positive electrode active substance; a negative electrode obtained by forming, on the surface of a negative electrode current collector, a negative electrode active substance layer containing a negative electrode active substance; and a separator. The positive electrode active substance is made to contain a spinel type lithium manganese composite oxide and a lithium nickel-based composite oxide, and the mixing ratio of the lithium nickel-based composite oxide is 50 to 70% by weight relative to the total 100% by weight of the spinel type lithium manganese composite oxide and the lithium nickel-based composite oxide.Type: ApplicationFiled: April 23, 2014Publication date: June 30, 2016Inventors: Kenji OHARA, Yoshiaki NITTA, Gentaro KANO, Tomoya KUBOTA, Masanori AOYAGI
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Publication number: 20130234672Abstract: In a device for controlling an assembled battery provided with a plurality of single batteries, the device includes a capacity adjustment section for adjusting a capacity such that voltages of the single batteries are equalized at a targeted voltage, an internal state detection section for detecting terminal voltages or SOC of the single batteries and for detecting, based on the detected terminal voltages/SOC, a voltage/SOC difference among the single batteries as voltage-difference/SOC-difference data, and a time-series data storage for storing the voltage-difference/SOC-difference data in time-series. Also provided is a prediction section for more appropriately predicting time when the assembled battery becomes an abnormal state, based on a time-dependent change in the voltage-difference/SOC-difference data detected in a voltage/SOC region different from the targeted voltage by a predetermined voltage, among the stored time-series voltage-difference/SOC-difference data.Type: ApplicationFiled: December 9, 2010Publication date: September 12, 2013Applicant: NISSAN MOTOR CO., LTD.Inventors: Tomoya Kubota, Yasuhito Miyazaki, Yukinari Kato, Yoshio Shimoida
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Publication number: 20130071741Abstract: A negative electrode for a secondary battery according to the present invention has a collector and a negative electrode active material layer formed on a surface of the collector and containing negative electrode active material particles. In the negative electrode active material layer, an insulating material is arranged between the negative electrode active material particles so as not to develop conductivity by a percolation path throughout the negative electrode active material layer. It is possible in this configuration to effectively prevent the occurrence of a short-circuit current due to an internal short circuit and the generation of heat due to such short-circuit current flow in the secondary battery while securing the battery performance of the secondary battery.Type: ApplicationFiled: May 25, 2011Publication date: March 21, 2013Inventors: Kenji Ohara, Sohei Suga, Yasuo Ohta, Tomoya Kubota, Kazuyuki Sakamoto, Takaaki Abe, Satoru Ichikawa, Kenji Hosaka, Kosuke Hagiyama, Hiroshi Miyakubo
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Patent number: 8257803Abstract: An inkjet recording medium comprising a support, an ink receiving layer containing fine particles and a water-soluble resin, and a back coat layer containing a specific resin, and satisfying the equation B>?30A+4C+37, wherein A is a static friction coefficient between the uppermost surface at the back coat layer side of the support and a metal roller onto which wear-resistant particles are adhered, B is an amount of deformation of the overall layer(s) on the back coat layer side of the support B (?m), and C is an overall rigidity of the layers including the support, the ink receiving layer and the back coat layer (mN·m), and A, B and C are within the ranges of 0.84>A>0.44, 32>B>20 and 5>C>2, respectively.Type: GrantFiled: September 3, 2008Date of Patent: September 4, 2012Assignee: FUJIFILM CorporationInventors: Hirokazu Shimada, Tomoya Kubota
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Patent number: 8186827Abstract: An inkjet recording medium comprising a resin coated sheet formed from a base paper having both sides coated with a resin, and ink receiving layers provided on both sides of the resin coated sheet as outermost layers, wherein a static friction coefficient between at least one of the ink receiving layers and a metal roller onto which wear-resistant particles are adhered is from 0.3 to 0.6.Type: GrantFiled: September 3, 2008Date of Patent: May 29, 2012Assignee: FUJIFILM CorporationInventors: Tomoya Kubota, Hirokazu Shimada
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Publication number: 20120034521Abstract: A current collector for a secondary battery (1) of the present invention includes a resin layer (2) having electrical conductivity, and an ion barrier layer (3) provided on the surface of the resin layer (2). The ion barrier layer (3) contains ion trapping particles (6) in which metal compounds (5) are provided on the surfaces of metal containing particles (4). The ion trapping particles (6) are continuously provided from an interface (7) between the resin layer (2) and the ion barrier layer (3) toward a surface (3a) of the ion barrier layer (3). Thus, the ion barrier layer (3) prevents from the entry of ions, so that the ion adsorption in the current collector (1) can be decreased.Type: ApplicationFiled: April 9, 2010Publication date: February 9, 2012Inventors: Chizuru Matsuyama, Yasuyuki Tanaka, Takashi Honda, Shigeo Ibuka, Yoshiaki Nitta, Satoru Ichikawa, Manabu Kaseda, Tomoya Kubota, Haruyuki Saito, Keisuke Shimamoto, Kana Sato, Yukinari Kato, Hideaki Horie
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Publication number: 20100173104Abstract: The manufacturing method of a recording medium of the invention includes forming an ink-receiving layer by applying an ink-receiving layer coating solution containing at least a water-soluble resin and a crosslinking agent on a support, and performing alkali treatment on the coating layer surface by using a basic gas, during drying of the coating layer after forming the coating layer by applying the ink-receiving layer coating solution on the support. The inkjet recording medium of the invention is manufactured by this manufacturing method.Type: ApplicationFiled: March 20, 2007Publication date: July 8, 2010Applicant: FUJIFILM CorporationInventor: Tomoya Kubota
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Patent number: 7622017Abstract: A processing apparatus for performing a process on a surface of an object to be processed by applying a high frequency power to an electrode installed in an airtight processing chamber to convert a processing gas introduced therein into a plasma, includes a thermal transfer gas feed pathway for supplying a thermal transfer gas for controlling a temperature of the object to be processed to a minute space between the object to be processed and a holding unit installed on the electrode for attracting and holding the object to be processed through an inner portion of an insulating member disposed under the electrode. A portion of the thermal transfer gas feed pathway, which passes through the inner portion of the insulating member, is formed in a zigzag shape or a spiral shape with respect to a normal direction of a holding surface of the holding unit.Type: GrantFiled: June 1, 2004Date of Patent: November 24, 2009Assignee: Tokyo Electron LimitedInventors: Shinji Himori, Shosuke Endoh, Kazuya Nagaseki, Tomoya Kubota, Daisuke Hayashi
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Publication number: 20090066774Abstract: An inkjet recording medium comprising a resin coated sheet formed from a base paper having both sides coated with a resin, and ink receiving layers provided on both sides of the resin coated sheet as outermost layers, wherein a static friction coefficient between at least one of the ink receiving layers and a metal roller onto which wear-resistant particles are adhered is from 0.3 to 0.6.Type: ApplicationFiled: September 3, 2008Publication date: March 12, 2009Applicant: FUJIFILM CorporationInventors: Tomoya KUBOTA, Hirokazu Shimada
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Publication number: 20090068360Abstract: An inkjet recording medium comprising a support, an ink receiving layer containing fine particles and a water-soluble resin, and a back coat layer containing a specific resin, and satisfying the equation B>?30A+4C+37, wherein A is a static friction coefficient between the uppermost surface at the back coat layer side of the support and a metal roller onto which wear-resistant particles are adhered, B is an amount of deformation of the overall layer(s) on the back coat layer side of the support B (?m), and C is an overall rigidity of the layers including the support, the ink receiving layer and the back coat layer (mN·m), and A, B and C are within the ranges of 0.84>A>0.44, 32>B>20 and 5>C>2, respectively.Type: ApplicationFiled: September 3, 2008Publication date: March 12, 2009Applicant: FUJIFILM CorporationInventors: Hirokazu Shimada, Tomoya Kubota
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Publication number: 20070196597Abstract: The invention provides an inorganic fine particle dispersion having at least an inorganic fine particles, a silane coupling agent, and at least one member selected from the group consisting of a basic inorganic salt and ammonium, the inorganic fine particle dispersion having a pH of 5.0 or less, and a method for forming thereof including at least adjusting the pH by using the basic inorganic salt and/or the ammonium. The invention further provides an ink jet recording medium and a method manufacturing thereof including at least applying an ink-receiving layer coating liquid formed by mixing the inorganic fine particle dispersion and a water-soluble resin onto a support.Type: ApplicationFiled: February 12, 2007Publication date: August 23, 2007Applicant: FUJIFILM CorporationInventors: Kentaro Shiratsuchi, Tomoya Kubota
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Publication number: 20070166486Abstract: In an ink-jet recording media, an ink receiving layer formed over a transparent support having a total-light-ray transmittance of 80% or more contains inorganic particles A having an average of agglomerated particle diameters of from 0.5 ?m to less than 1 ?m and inorganic particles B having an average of agglomerated particle diameters of from 7.5 ?m to less than 10 ?m at a ratio A/B of 25/75 to 75/25.Type: ApplicationFiled: January 8, 2007Publication date: July 19, 2007Applicant: FUJIFILM CorporationInventors: Tomoya Kubota, Kentaro Shiratsuchi
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Publication number: 20070087936Abstract: Provided is a recording medium having, on a support, a recording layer including a tartaric acid diamide derivative having an alkenyl group and/or an alkynyl group. The tartaric acid diamide derivative is preferably represented by any of the following formulae (1) to (3). R1 to R12 each independently represent a hydrogen atom, an alkenyl group having 2 to 30 carbon atoms, or an alkynyl group having 2 to 30 carbon atoms. R1 to R12 may be the same as or different from each other. At least one of R1 to R4 represents an alkenyl group or an alkynyl group, at least one of R5 to R8 represents an alkenyl group or an alkynyl group, and at least one of R9 to R12 represents an alkenyl group or an alkynyl group.Type: ApplicationFiled: October 10, 2006Publication date: April 19, 2007Inventors: Kentaro Shiratsuchi, Tomoya Kubota
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Publication number: 20050274324Abstract: A parallel plate type plasma processing apparatus including a RF feed rod for applying a high frequency power to a susceptor and a temperature detection unit for detecting the temperature of a substrate on the susceptor is configured to reduce an effect that high frequency current flowing in the RF feed rod has on temperature detection of the temperature detection unit. A surface portion of the susceptor serves as a mounting unit including an electrostatic chuck and a heater. A shaft, which is a protection pipe extracted downward from the processing chamber, is provided under the mounting unit. A chuck electrode of the electrostatic chuck serves as an electrode for applying a high frequency voltage. Provided in the shaft are two RF feed rod for supplying a power to the electrode and an optical fiber, i.e., a temperature detection unit, having a dielectric fluorescent material is disposed in a leading end thereof.Type: ApplicationFiled: March 31, 2005Publication date: December 15, 2005Applicant: TOKYO ELECTRON LIMITEDInventors: Syuichi Takahashi, Yasuharu Sasaki, Tsutomu Higashiura, Tomoya Kubota
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Publication number: 20050011456Abstract: A processing apparatus for performing a process on a surface of an object to be processed by applying a high frequency power to an electrode installed in an airtight processing chamber to convert a processing gas introduced therein into a plasma, includes a thermal transfer gas feed pathway for supplying a thermal transfer gas for controlling a temperature of the object to be processed to a minute space between the object to be processed and a holding unit installed on the electrode for attracting and holding the object to be processed through an inner portion of an insulating member disposed under the electrode. A portion of the thermal transfer gas feed pathway, which passes through the inner portion of the insulating member, is formed in a zigzag shape or a spiral shape with respect to a normal direction of a holding surface of the holding unit.Type: ApplicationFiled: June 1, 2004Publication date: January 20, 2005Applicant: TOKYO ELECTRON LIMITEDInventors: Shinji Himori, Shosuke Endoh, Kazuya Nagaseki, Tomoya Kubota, Daisuke Hayashi