Patents by Inventor Junko Nishiyama
Junko Nishiyama 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: 11400819Abstract: Provided is a hybrid electric vehicle in which, in accordance with the system side of the vehicle including a fuel economy-emphasized system, a wide use-range of the SOC of a lithium ion secondary battery cell can be utilized.Type: GrantFiled: December 9, 2016Date of Patent: August 2, 2022Assignee: Envision AESC Japan Ltd.Inventors: Kenji Ohara, Shin Tanaka, Fumihiro Kawamura, Masanori Aoyagi, Junko Nishiyama
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Patent number: 10756342Abstract: A lithium ion secondary battery includes: a negative electrode having a carbon-based negative electrode material containing graphite particles and amorphous carbon particles; and a positive electrode including a lithium composite oxide. The lithium composite oxide is represented by a general formula: LixNiyMnzCo(1-y-z)O2, where x is a numeral of 1 or more and 1.2 or less, and y and z are positive numerals satisfying the relation of y+z<1. The lithium composite oxide has a layer crystal structure and has a median particle diameter (D50) of 4.0 ?m or more and less than 6.0 ?m.Type: GrantFiled: December 11, 2015Date of Patent: August 25, 2020Assignee: ENVISION AESC JAPAN LTD.Inventors: Sohei Suga, Koichi Shinohara, Kenji Ohara, Toshihiro Horiuchi, Masanori Aoyagi, Junko Nishiyama
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Patent number: 10714787Abstract: Provided is a lithium ion secondary battery including a power generating element that includes at least one positive electrode plate, at least one negative electrode plate, and at least one separator. A ratio B/A (m?cm) of volume resistivity B (m?cm3) of the power generating element to an area A (cm2) per one positive electrode plate is 0.4 or more and less than 0.9.Type: GrantFiled: February 17, 2016Date of Patent: July 14, 2020Assignee: ENVISION AESC JAPAN LTD.Inventors: Sohei Suga, Koichi Shinohara, Kenji Ohara, Toshihiro Horiuchi, Masanori Aoyagi, Junko Nishiyama
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Publication number: 20190084399Abstract: Provided is a hybrid electric vehicle in which, in accordance with the system side of the vehicle including a fuel economy-emphasized system, a wide use-range of the SOC of a lithium ion secondary battery cell can be utilized.Type: ApplicationFiled: December 9, 2016Publication date: March 21, 2019Applicant: Automotive Energy Supply CorporationInventors: Kenji Ohara, Shin Tanaka, Fumihiro Kawamura, Masanori Aoyagi, Junko Nishiyama
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Patent number: 10147949Abstract: A negative electrode material for a lithium ion battery according to an embodiment of the present disclosure includes graphite particles and amorphous carbon particles. The graphite particles have a median diameter (D50) A of 8.0 ?m or more and 11.0 ?m or less. A ratio A/B of the median diameter A (?m) to a median diameter (D50) B (?m) of the amorphous carbon particles satisfies a relation of 1.1<(A/B)?2.75.Type: GrantFiled: December 11, 2015Date of Patent: December 4, 2018Assignee: Automotive Energy Supply CorporationInventors: Sohei Suga, Koichi Shinohara, Kenji Ohara, Toshihiro Horiuchi, Masanori Aoyagi, Junko Nishiyama
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Publication number: 20180241075Abstract: A lithium-ion secondary battery includes an electricity generation element including a cathode including a cathode active material layer arranged on a cathode current collector, an anode including an anode active material layer arranged on an anode current collector, a separator, and an electrolyte. The anode active material layer includes graphite. When the battery is charged to 5 V, the battery has an excess ratio of 1 or higher that is a ratio of a specific capacity of the cathode to a specific capacity of the anode, and the separator has a thermal shrinkage of 13% or lower. The lithium-ion secondary battery prevents heat generation in an overcharge state and maintains safety.Type: ApplicationFiled: July 15, 2016Publication date: August 23, 2018Applicant: Automotive Energy Supply CorporationInventors: Kenji Ohara, Sohei Suga, Koichi Shinohara, Toshihiro Horiuchi, Masanori Aoyagi, Junko Nishiyama
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Patent number: 10026988Abstract: Provided is a lithium ion secondary battery including a power generation element, the power generation element including a positive electrode, a negative electrode, a separator, and an electrolyte solution, the positive electrode including a positive electrode current collector, and a positive electrode active material layer provided for the positive electrode current collector, the positive electrode active material layer including a positive electrode active material and binder, the negative electrode including a negative electrode current collector and a negative electrode active material layer provided for the negative electrode current collector, the negative electrode active material layer including a negative electrode active material and binder. The positive electrode has a volume resistivity in a range of 100 ?cm or more and 700 ?cm or less after at least one charging and discharging cycle.Type: GrantFiled: March 29, 2016Date of Patent: July 17, 2018Assignee: AUTOMOTIVE ENERGY SUPPLY CORPORATIONInventors: Sohei Suga, Koichi Shinohara, Kenji Ohara, Toshihiro Horiuchi, Masanori Aoyagi, Junko Nishiyama
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Publication number: 20160294001Abstract: Provided is a lithium ion secondary battery including a power generation element, the power generation element including a positive electrode, a negative electrode, a separator, and an electrolyte solution, the positive electrode including a positive electrode current collector, and a positive electrode active material layer provided for the positive electrode current collector, the positive electrode active material layer including a positive electrode active material and binder, the negative electrode including a negative electrode current collector and a negative electrode active material layer provided for the negative electrode current collector, the negative electrode active material layer including a negative electrode active material and binder. The positive electrode has a volume resistivity in a range of 100 ?cm or more and 700 ?cm or less after at least one charging and discharging cycle.Type: ApplicationFiled: March 29, 2016Publication date: October 6, 2016Applicant: Automotive Energy Supply CorporationInventors: Sohei SUGA, Koichi SHINOHARA, Kenji OHARA, Toshihiro HORIUCHI, Masanori AOYAGI, Junko NISHIYAMA
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Publication number: 20160248116Abstract: Provided is a lithium ion secondary battery including a power generating element that includes at least one positive electrode plate, at least one negative electrode plate, and at least one separator. A ratio B/A (m?cm) of volume resistivity B (m?cm3) of the power generating element to an area A (cm2) per one positive electrode plate is 0.4 or more and less than 0.9.Type: ApplicationFiled: February 17, 2016Publication date: August 25, 2016Applicant: Automotive Energy Supply CorporationInventors: Sohei SUGA, Koichi SHINOHARA, Kenji OHARA, Toshihiro HORIUCHI, Masanori AOYAGI, Junko NISHIYAMA
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Publication number: 20160181606Abstract: A lithium ion secondary battery includes: a negative electrode having a carbon-based negative electrode material containing graphite particles and amorphous carbon particles; and a positive electrode including a lithium composite oxide. The lithium composite oxide is represented by a general formula: LixNiyMnzCo(1?y?z)O2, where x is a numeral of 1 or more and 1.2 or less, and y and z are positive numerals satisfying the relation of y+z<1. The lithium composite oxide has a layer crystal structure and has a median particle diameter (D50) of 4.0 ?m or more and less than 6.0 ?m.Type: ApplicationFiled: December 11, 2015Publication date: June 23, 2016Applicant: Automotive Energy Supply CorporationInventors: Sohei SUGA, Koichi SHINOHARA, Kenji OHARA, Toshihiro HORIUCHI, Masanori AOYAGI, Junko NISHIYAMA
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Publication number: 20160181614Abstract: A negative electrode material for a lithium ion battery according to an embodiment of the present disclosure includes graphite particles and amorphous carbon particles. The graphite particles have a median diameter (D50) A of 8.0 ?m or more and 11.0 ?m or less. A ratio A/B of the median diameter A (?m) to a median diameter (D50) B (?m) of the amorphous carbon particles satisfies a relation of 1.1<(A/B)?2.75.Type: ApplicationFiled: December 11, 2015Publication date: June 23, 2016Applicant: Automotive Energy Supply CorporationInventors: Sohei SUGA, Koichi SHINOHARA, Kenji OHARA, Toshihiro HORIUCHI, Masanori AOYAGI, Junko NISHIYAMA
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Patent number: 8022673Abstract: A drop of discharge or charge capacity in discharging or charging with a large current is reduced without changing a design of a lithium ion secondary battery itself. When the lithium ion secondary battery for a car or a vehicles such as an electric automobile and a hybrid automobile is discharged or charged with, for instance, a large current not less than 5 C, an intermittent power feeding of repeatedly executing a power feeding (t2) and a pause (t1) is carried out.Type: GrantFiled: July 6, 2010Date of Patent: September 20, 2011Assignee: NEC CorporationInventors: Junko Nishiyama, Chika Kanbe
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Patent number: 7939231Abstract: A magnetic toner is disclosed having magnetic toner particles containing a binder resin and a magnetic iron oxide. The magnetic toner has a specific saturation magnetization and a specific residual magnetization in ascertain magnetic field. The binder resin includes a polyester component polymerized with an aromatic carboxylic acid titanium compound as a catalyst.Type: GrantFiled: June 24, 2005Date of Patent: May 10, 2011Assignee: Canon Kabushiki KaishaInventors: Yoshihiro Ogawa, Yusuke Hasegawa, Shinichiro Abe, Junko Nishiyama, Takashige Kasuya
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Publication number: 20100270978Abstract: A drop of discharge or charge capacity in discharging or charging with a large current is reduced without changing a design of a lithium ion secondary battery itself. When the lithium ion secondary battery for a car or a vehicles such as an electric automobile and a hybrid automobile is discharged or charged with, for instance, a large current not less than 5 C, an intermittent power feeding of repeatedly executing a power feeding (t2) and a pause (t1) is carried out.Type: ApplicationFiled: July 6, 2010Publication date: October 28, 2010Applicant: NEC CorporationInventors: Junko Nishiyama, Chika Kanbe
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Patent number: 7777452Abstract: A drop of discharge or charge capacity in discharging or charging with a large current is reduced without changing a design of a lithium ion secondary battery itself. When the lithium ion secondary battery for a car or a vehicles such as an electric automobile and a hybrid automobile is discharged or charged with, for instance, a large current not less than 5C, an intermittent power feeding of repeatedly executing a power feeding (t2) and a pause (t1) is carried out.Type: GrantFiled: November 14, 2003Date of Patent: August 17, 2010Assignee: NEC CorporationInventors: Junko Nishiyama, Chika Kanbe
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Patent number: 7678524Abstract: A magnetic toner including at least: a binder resin; and a magnetic body, in which, when magnetization at a magnetic field strength of 397.9 kA/m and a coercive force of the magnetic toner are denoted by ?s (Am2/kg) and Hc (kA/m), respectively, a magnetic field strength at which the magnetic toner shows a magnetization value equal to 95% of ?s is denoted by H95% (kA/m), and a number average particle size of the magnetic body is denoted by d (?m), H95%, Hc, and d satisfy the following expressions. 151<H95%<200??(1) 7.Type: GrantFiled: May 3, 2006Date of Patent: March 16, 2010Assignee: Canon Kabushiki KaishaInventors: Yusuke Hasegawa, Yoshihiro Ogawa, Junko Nishiyama, Miho Okazaki, Takashige Kasuya, Tomohisa Sano
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Patent number: 7608364Abstract: This invention provides a lithium ion secondary battery comprising a cathode, an anode and an nonaqueous electrolytic solution in which an electrolyte is dissolved in a nonaqueous solvent, wherein the anode comprises a non-graphitizable carbon as an anode activator; and the nonaqueous electrolytic solution comprises at least one anode protecting component selected from the group consisting of sultones having a 5- to 7-membered cyclic sulfonate structure and their substituted derivatives as well as vinylene carbonates and their substituted derivatives.Type: GrantFiled: December 22, 2003Date of Patent: October 27, 2009Assignee: NEC CorporationInventors: Junko Nishiyama, Tamaki Miura, Koji Utsugi
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Patent number: 7582401Abstract: The invention is to provide a toner excellent in fixing property, high-temperature offset resistance and blocking resistance, and having an excellent developing property. The invention provides a toner including at least a binder resin and a colorant, wherein: the binder resin contains a hybrid resin which contains a polyester-type resin unit by 50 mass % or more and in which a polyester-type resin component and a vinyl-type resin component are chemically bonded; the toner contains 3 to 50 mass % of a tetrahydrofuran-insoluble matter derived from the binder resin; the tetrahydrofuran-insoluble matter contains a hybrid resin; and a tetrahydrofuran-soluble matter, obtained by hydrolyzing the tetrahydrofuran-insoluble matter and separating by filtration, has, in a GPC-measured molecular weight distribution, a main peak within a molecular weight range of 50,000 to 500,000.Type: GrantFiled: April 20, 2006Date of Patent: September 1, 2009Assignee: Canon Kabushiki KaishaInventors: Yoshihiro Ogawa, Yusuke Hasegawa, Tomohisa Sano, Junko Nishiyama, Miho Okazaki, Takashige Kasuya, Koji Nishikawa
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Patent number: 7537877Abstract: A toner is provided which can stably provide a favorable density stability, line reproducibility and dot reproducibility even in high-speed copying machines, printers and the like which form high resolution latent images over a long period regardless of environmental conditions, and can provide the image quality adaptable to embedded pattern printing, QR code printing and the like. The present invention is characterized in that the toner which includes toner particles including at least a binder resin and a colorant, and a fine silica powder, has a volume median diameter (D50) of not less than 0.70 ?m and not more than 3.00 ?m, and a total pore volume of not more than 0.200 cm3/g, measured in the range of the pore diameter from not less than 1.7 nm and not more than 300.0 nm.Type: GrantFiled: November 29, 2007Date of Patent: May 26, 2009Assignee: Canon Kabushiki KaishaInventors: Daisuke Yoshiba, Katsuhisa Yamazaki, Syuhei Moribe, Junko Nishiyama, Shuichi Hiroko, Masami Fujimoto, Takashige Kasuya
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Publication number: 20090035679Abstract: A magnetic toner is disclosed having magnetic toner particles containing a binder resin and a magnetic iron oxide. The magnetic toner has a specific saturation magnetization and a specific residual magnetization in ascertain magnetic field. The binder resin includes a polyester component polymerized with an aromatic carboxylic acid titanium compound as a catalyst.Type: ApplicationFiled: June 24, 2005Publication date: February 5, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Yoshihiro Ogawa, Yusuke Hasegawa, Shinichiro Abe, Junko Nishiyama, Takashige Kasuya