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).

  • Patent number: 11948714
    Abstract: 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: Grant
    Filed: December 11, 2020
    Date of Patent: April 2, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yuya Ishida, Katsutoshi Uji, Hironobu Kubota, Tomoya Ooshima
  • Patent number: 10193159
    Abstract: 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: Grant
    Filed: April 9, 2010
    Date of Patent: January 29, 2019
    Assignee: 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
  • Patent number: 10033033
    Abstract: 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: Grant
    Filed: April 23, 2014
    Date of Patent: July 24, 2018
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kenji Ohara, Yoshiaki Nitta, Gentaro Kano, Tomoya Kubota, Masanori Aoyagi
  • Patent number: 9666858
    Abstract: 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: Grant
    Filed: May 25, 2011
    Date of Patent: May 30, 2017
    Assignee: 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
  • Patent number: 9490646
    Abstract: 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: Grant
    Filed: December 9, 2010
    Date of Patent: November 8, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tomoya Kubota, Yasuhito Miyazaki, Yukinari Kato, Yoshio Shimoida
  • Publication number: 20160190549
    Abstract: 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: Application
    Filed: April 23, 2014
    Publication date: June 30, 2016
    Inventors: Kenji OHARA, Yoshiaki NITTA, Gentaro KANO, Tomoya KUBOTA, Masanori AOYAGI
  • Publication number: 20130234672
    Abstract: 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: Application
    Filed: December 9, 2010
    Publication date: September 12, 2013
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tomoya Kubota, Yasuhito Miyazaki, Yukinari Kato, Yoshio Shimoida
  • Publication number: 20130071741
    Abstract: 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: Application
    Filed: May 25, 2011
    Publication date: March 21, 2013
    Inventors: Kenji Ohara, Sohei Suga, Yasuo Ohta, Tomoya Kubota, Kazuyuki Sakamoto, Takaaki Abe, Satoru Ichikawa, Kenji Hosaka, Kosuke Hagiyama, Hiroshi Miyakubo
  • Patent number: 8257803
    Abstract: 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: Grant
    Filed: September 3, 2008
    Date of Patent: September 4, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Hirokazu Shimada, Tomoya Kubota
  • Patent number: 8186827
    Abstract: 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: Grant
    Filed: September 3, 2008
    Date of Patent: May 29, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Tomoya Kubota, Hirokazu Shimada
  • Publication number: 20120034521
    Abstract: 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: Application
    Filed: April 9, 2010
    Publication date: February 9, 2012
    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
  • Publication number: 20100173104
    Abstract: 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: Application
    Filed: March 20, 2007
    Publication date: July 8, 2010
    Applicant: FUJIFILM Corporation
    Inventor: Tomoya Kubota
  • Patent number: 7622017
    Abstract: 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: Grant
    Filed: June 1, 2004
    Date of Patent: November 24, 2009
    Assignee: Tokyo Electron Limited
    Inventors: Shinji Himori, Shosuke Endoh, Kazuya Nagaseki, Tomoya Kubota, Daisuke Hayashi
  • Publication number: 20090066774
    Abstract: 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: Application
    Filed: September 3, 2008
    Publication date: March 12, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Tomoya KUBOTA, Hirokazu Shimada
  • Publication number: 20090068360
    Abstract: 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: Application
    Filed: September 3, 2008
    Publication date: March 12, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Hirokazu Shimada, Tomoya Kubota
  • Publication number: 20070196597
    Abstract: 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: Application
    Filed: February 12, 2007
    Publication date: August 23, 2007
    Applicant: FUJIFILM Corporation
    Inventors: Kentaro Shiratsuchi, Tomoya Kubota
  • Publication number: 20070166486
    Abstract: 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: Application
    Filed: January 8, 2007
    Publication date: July 19, 2007
    Applicant: FUJIFILM Corporation
    Inventors: Tomoya Kubota, Kentaro Shiratsuchi
  • Publication number: 20070087936
    Abstract: 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: Application
    Filed: October 10, 2006
    Publication date: April 19, 2007
    Inventors: Kentaro Shiratsuchi, Tomoya Kubota
  • Publication number: 20050274324
    Abstract: 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: Application
    Filed: March 31, 2005
    Publication date: December 15, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Syuichi Takahashi, Yasuharu Sasaki, Tsutomu Higashiura, Tomoya Kubota
  • Publication number: 20050011456
    Abstract: 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: Application
    Filed: June 1, 2004
    Publication date: January 20, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Shinji Himori, Shosuke Endoh, Kazuya Nagaseki, Tomoya Kubota, Daisuke Hayashi