Patents by Inventor Yuki Takei

Yuki Takei 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).

  • Publication number: 20210232477
    Abstract: A storage unit (14) stores statistical information (14a) including an amount of resource consumption and performance information, which represents a performance, of each piece of hardware of a plurality of types that are candidates for an arrangement destination of a function, an accepting unit (15a) accepts inputs of description details of a function in a high-level language, which is a hardware description language corresponding to the hardware of the plurality of types, and a performance requirement that represents a required performance, a performance predicting unit (15b) calculates a predicted performance, which is a performance that is predicted, and a predicted amount of resource consumption, which is an amount of resource consumption that is predicted, using the description details and a predetermined algorithm for each piece of hardware; and a device selecting unit (15c) selects, as an arrangement destination, hardware with the calculated predicted performance and the performance information satisfy
    Type: Application
    Filed: May 24, 2019
    Publication date: July 29, 2021
    Inventors: Yuki Takei, Satoshi Nishiyama
  • Publication number: 20210091379
    Abstract: Provided is a positive electrode for lithium ion secondary cell that includes an electrolyte holding layer excellent in electron conductivity, and a lithium ion secondary cell using the same. The present invention relates to a positive electrode for lithium ion secondary cell that includes a positive electrode current collector foil and positive electrode mixture layers laminated on both surfaces of the positive electrode current collector foil. The positive electrode mixture layer includes a first positive electrode active material layer, an electrolyte holding layer, and a second positive electrode active material layer. The first positive electrode active material layer, the electrolyte holding layer, and the second positive electrode active material layer contain positive electrode active materials, binders, and conductive agents containing carbonaceous material.
    Type: Application
    Filed: November 19, 2018
    Publication date: March 25, 2021
    Applicant: VEHICLE ENERGY JAPAN INC.
    Inventors: Yuki TAKEI, Shuichi SUZUKI, Takeshi MIKI, Hironori SASAKI
  • Patent number: 10673028
    Abstract: [Problem] The present invention provides an electrochemical element having an electrode body covered with a laminate-film jacket; the electrochemical element is structured to prevent damage and short-circuiting of a positive electrode lead while making it possible to prevent decreased sealing ability of the laminate-film jacket. [Solution] A laminate-type cell 1 includes: an electrode body 10; a positive terminal 41; a laminate-film jacket 20; a positive electrode sealing material 45 located between the positive terminal 41 and the laminate-film jacket 20; and an insulating material 55. The positive terminal 41 and the positive electrode sealing material 45 include a plurality of bending portions 51a, 51b inside the laminate-film jacket 20. The insulating material 55 coats a part of the positive electrode sealing material 45 near the electrode body 10.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: June 2, 2020
    Assignee: Maxwell Holdings, Ltd.
    Inventors: Yuki Takei, Yukihiro Hata, Kiyoharu Hosoya
  • Patent number: 10461327
    Abstract: A positive electrode for a non-aqueous electrolyte secondary battery includes a positive current collector, a coating layer including graphite, the coating layer coating the positive current collector, a positive active material having a composition represented by Chemical Formula 1, and a conductive auxiliary agent having a BET specific surface area of about 35 m2/g to about 350 m2/g, where Chemical Formula 1 is LixNiyMn2-y-zMzO4, wherein, M is at least one metal element selected from a transition metal and aluminum, the transition metal is a transition metal other than nickel (Ni) or manganese (Mn), and x, y, and z are within the ranges: 0.02?x?1.10, 0.25?y?0.6, and 0.0?z?0.10.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: October 29, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yuki Takei, Kenichi Kawase
  • Publication number: 20190097186
    Abstract: [Problem] The present invention provides an electrochemical element having an electrode body covered with a laminate-film jacket; the electrochemical element is structured to prevent damage and short-circuiting of a positive electrode lead while making it possible to prevent decreased sealing ability of the laminate-film jacket. [Solution] A laminate-type cell 1 includes: an electrode body 10; a positive terminal 41; a laminate-film jacket 20; a positive electrode sealing material 45 located between the positive terminal 41 and the laminate-film jacket 20; and an insulating material 55. The positive terminal 41 and the positive electrode sealing material 45 include a plurality of bending portions 51a, 51b inside the laminate-film jacket 20. The insulating material 55 coats a part of the positive electrode sealing material 45 near the electrode body 10.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 28, 2019
    Inventors: Yuki TAKEI, Yukihiro HATA, Kiyoharu HOSOYA
  • Publication number: 20170288220
    Abstract: A positive electrode for a non-aqueous electrolyte secondary battery includes a positive current collector, a coating layer including graphite, the coating layer coating the positive current collector, a positive active material having a composition represented by Chemical Formula 1, and a conductive auxiliary agent having a BET specific surface area of about 35 m2/g to about 350 m2/g, where Chemical Formula 1 is LixNiyMn2-y-zMzO4, wherein, M is at least one metal element selected from a transition metal and aluminum, the transition metal is a transition metal other than nickel (Ni) or manganese (Mn), and x, y, and z are within the ranges: 0.02?x?1.10, 0.25?y?0.6, and 0.0?z?0.10.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 5, 2017
    Inventors: Yuki TAKEI, Kenichi KAWASE
  • Patent number: 9478808
    Abstract: A positive active material for a rechargeable lithium battery is disclosed. The positive material includes including a lithium-manganese oxide-based solid solution including primary particles and secondary particles having a particle diameter (D50) in the range of about 1 ?m to about 5 ?m, a particle diameter (D90) in the range of less than about 8 ?m, and a crystallite diameter of less than or equal to about 150 nm. The positive electrode for a rechargeable lithium battery includes the lithium manganese oxide-based solid solution is also disclosed.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: October 25, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yuki Takei, Masatsugu Nakano
  • Patent number: 9391327
    Abstract: A positive active material is disclosed that includes a lithium nickel composite oxide represented by the following Chemical Formula 1, wherein a full width at half maximum (FWHM003) at a (003) plane in X-ray diffraction ranges from about 0.12 to about 0.155, and a rechargeable lithium ion battery including the same.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: July 12, 2016
    Assignee: Samsung SDI Co, Ltd.
    Inventors: Keisuke Nomura, Yuki Takei, Masatsugu Nakano
  • Publication number: 20160164094
    Abstract: A positive active material for a rechargeable lithium battery includes a lithium nickel composite oxide having an I(003)/I(104) ratio of greater than or equal to about 0.92 and less than or equal to about 1.02 in X-ray diffraction, wherein the I(003)/I(104) ratio is a ratio of a diffraction peak intensity I(003) of a (003) phase and a diffraction peak intensity I(104) of a (104) phase. The lithium nickel composite oxide includes lithium and a nickel-containing metal, and nickel is present in an amount of greater than or equal to about 80 atm % based on the total atom amount of the nickel-containing metal. A rechargeable lithium battery includes the positive active material.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 9, 2016
    Inventors: Yuki Takei, Masatsugu Nakano
  • Publication number: 20160099464
    Abstract: A positive active material for a rechargeable lithium battery includes a lithium nickel-based oxide particle and a coating layer surrounding the lithium nickel-based oxide particle, the coating layer including diamond-like carbon. The lithium nickel-based oxide particle includes lithium and a nickel-containing metal. The nickel-containing metal includes about 60 atom % or greater of nickel based on the total atomic amount of the nickel-containing metal. An SP2/SP3 ratio of the coating layer is about 50/50 to about 60/40. A positive active material layer and a rechargeable lithium battery including the same are provided.
    Type: Application
    Filed: September 30, 2015
    Publication date: April 7, 2016
    Inventors: Yuki Takei, Masatsugu Nakano, Heidy Visbal
  • Publication number: 20150162599
    Abstract: Provided are a positive electrode for a rechargeable lithium battery that includes a current collector; and a lithium nickel composite oxide represented by the Chemical Formula 1 and a first coating layer positioned on the surface of the lithium nickel composite oxide and including at least one oxyacid, a rechargeable lithium battery including the same and a method of preparing the same.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 11, 2015
    Inventors: Yuki Takei, Masatsugu Nakano, Keisuke Nomura
  • Publication number: 20150147653
    Abstract: A positive active material is disclosed that includes a lithium nickel composite oxide represented by the following Chemical Formula 1, wherein a full width at half maximum (FWHM003) at a (003) plane in X-ray diffraction ranges from about 0.12 to about 0.155, and a rechargeable lithium ion battery including the same.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 28, 2015
    Inventors: Keisuke Nomura, Yuki Takei, Masatsugu Nakano
  • Publication number: 20150118562
    Abstract: A rechargeable lithium ion battery includes a positive electrode including a positive active material; negative electrode; and electrolyte, wherein the rechargeable lithium ion battery is used at a voltage of less than about 4.5 V, and activated by performing a first cycle charging at a voltage of greater than or equal to about 4.55 V, the positive active material is a ternary-component positive active material including a Li2MnO3-based solid solution, and an average primary particle diameter of the Li2MnO3-based solid solution ranges from about 50 to about 300 nm.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Inventors: Masatsugu Nakano, Yuki Takei, Keisuke Nomura
  • Patent number: 8920973
    Abstract: A positive electrode active material for nonaqueous electrolyte secondary batteries includes a coating layer containing at least nickel (Ni) and/or manganese (Mn) on the surface of a complex oxide particle containing lithium (Li) and cobalt (Co), wherein a binding energy value obtained by analysis of a surface state by an ESCA surface analysis on the surface of the coating layer is 642.0 eV or more and not more than 642.5 eV in an Mn2p3 peak, and a peak interval of Co—Mn is 137.6 eV or more and not more than 138.0 eV.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: December 30, 2014
    Assignee: Sony Corporation
    Inventor: Yuki Takei
  • Patent number: 8900757
    Abstract: A positive electrode capable of achieving both of high volumetric energy density and high volumetric power density and a lithium ion secondary battery using the same are provided. A lithium ion secondary battery includes a positive electrode including a current collector with a positive active material mixture layer applied on both faces thereof, the positive active material mixture layer including active material particles, conductive additive particles and a binder. The active material particles used have a value D of an average particle diameter D50 of the active material particles in the range from 1 to 10 ?m. The ratio b/a of the volume fraction b of the vacancy volume in the positive active material mixture layer to the volume fraction a of the active material particles in the positive active material mixture layer is in the range of ?0.01D+0.57?b/a??0.01D+0.97.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: December 2, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Ikuo Ozaki, Yoshimasa Koishikawa, Yoshihisa Okuda, Yuki Takei
  • Publication number: 20140162119
    Abstract: A positive active material for a rechargeable lithium battery is disclosed. The positive material includes including a lithium-manganese oxide-based solid solution including primary particles and secondary particles having a particle diameter (D50) in the range of about 1 ?m to about 5 ?m, a particle diameter (D90) in the range of less than about 8 ?m, and a crystallite diameter of less than or equal to about 150 nm.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 12, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Yuki Takei, Masatsugu Nakano
  • Publication number: 20140162128
    Abstract: A positive active material for a rechargeable lithium battery is disclosed. The positive active material includes a lithium manganese oxide-based solid solution having a specific surface area of about 3 m2/g to about 12 m2/g and a crystallite diameter of about 40 nm to about 120 nm. In addition, a positive electrode for rechargeable lithium battery and rechargeable lithium battery including a positive active material is also disclosed.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 12, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Masatsugu NAKANO, Yuki TAKEI
  • Publication number: 20120219855
    Abstract: A positive electrode capable of achieving both of high volumetric energy density and high volumetric power density and a lithium ion secondary battery using the same are provided. A lithium ion secondary battery includes a positive electrode including a current collector with a positive active material mixture layer applied on both faces thereof, the positive active material mixture layer including active material particles, conductive additive particles and a binder. The active material particles used have a value D of an average particle diameter D50 of the active material particles in the range from 1 to 10 ?m. The ratio b/a of the volume fraction b of the vacancy volume in the positive active material mixture layer to the volume fraction a of the active material particles in the positive active material mixture layer is in the range of ?0.01D+0.57?b/a??0.01D+0.97.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 30, 2012
    Inventors: Ikuo Ozaki, Yoshimasa Koishikawa, Yoshihisa Okuda, Yuki Takei
  • Publication number: 20120177974
    Abstract: A non-aqueous electrolyte battery according to the present invention is a non-aqueous electrolyte battery including a positive electrode, a negative electrode, a separator and a non-aqueous electrolyte, wherein aluminum silicate or a derivative thereof is contained in a location that can come into contact with the non-aqueous electrolyte in the battery. In the non-aqueous electrolyte battery, it is preferable that at least one of the separator, the positive electrode, the negative electrode and the non-aqueous electrolyte contains aluminum silicate or a derivative thereof.
    Type: Application
    Filed: October 21, 2011
    Publication date: July 12, 2012
    Inventors: Hiroshi NAKAJIMA, Hideaki Katayama, Yuki Takei
  • Patent number: 8192819
    Abstract: Disc-shaped information recording medium comprising optical penetrating substrate having colored underlayer and ink receipt layer in this order on the principal surface of one side of the substrate, wherein the ink receipt layer contains inorganic fine particles, a binder, and a crosslinking agent, and wherein a pore diameter distribution of a gap of the ink receipt layer has a maximum peak in the range of 30 nm or more when the ink receipt layer is measured with a mercury porosimetry method. Since the shrinkage force functioning in the pores of the gaps of the ink receipt layer weakens, a disc-shaped information recording medium having a reduced occurrence of warp is provided.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: June 5, 2012
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Ippei Maekawa, Tomonori Endo, Mamoru Uchida, Yuki Takei, Yuaki Shin