Patents by Inventor Yoshiyuki Ozaki

Yoshiyuki Ozaki 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: 20200350545
    Abstract: The present invention provides an optimal non-aqueous electrolyte secondary battery having high durability against high rate charging and discharging and excellent safety. The non-aqueous electrolyte secondary battery 100 according to the present invention comprises a positive electrode 10, a negative electrode 20 and a separator 30 which is interposed between the positive electrode 10 and the negative electrode 20. The separator 30 has a two-layer structure which is composed of a porous polyethylene layer 34 mainly composed of polyethylene, and a porous polymer layer 32 mainly composed of a polymer having higher oxidation resistance than that of the polyethylene, and an inorganic filler layer 40 including an inorganic filler and a binder is formed on the surface of the polyethylene layer 34 on which the porous polymer layer 32 is not formed.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomoyoshi UEKI, Naoyuki WADA, Yoshiyuki OZAKI
  • Patent number: 10777799
    Abstract: The present invention provides an optimal non-aqueous electrolyte secondary battery having high durability against high rate charging and discharging and excellent safety. The non-aqueous electrolyte secondary battery 100 according to the present invention comprises a positive electrode 10, a negative electrode 20 and a separator 30 which is interposed between the positive electrode 10 and the negative electrode 20. The separator 30 has a two-layer structure which is composed of a porous polyethylene layer 34 mainly composed of polyethylene, and a porous polymer layer 32 mainly composed of a polymer having higher oxidation resistance than that of the polyethylene, and an inorganic filler layer 40 including an inorganic filler and a binder is formed on the surface of the polyethylene layer 34 on which the porous polymer layer 32 is not formed.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: September 15, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomoyoshi Ueki, Naoyuki Wada, Yoshiyuki Ozaki
  • Patent number: 9911972
    Abstract: The non-aqueous electrolyte secondary battery 10 provided by the present invention comprises a positive electrode 30, a negative electrode 50 and a non-aqueous electrolyte. The negative electrode 50 includes a negative electrode current collector 52 and a negative electrode active material layer 54 formed on the current collector 52, the negative electrode active material layer 54 containing a negative electrode active material 55 capable of storing and releasing charge carriers and having shape anisotropy so that the charge carriers are stored and released along a predefined direction. The negative electrode active material layer 54 includes, at a bottom thereof contacting the current collector 52, a minute conductive material 57 with granular shape and/or minute conductive material 57 with fibrous shape having an average particle diameter that is smaller than that of the negative electrode active material 55, and includes, at the bottom thereof; a part of the negative electrode active material 55.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: March 6, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Koji Takahata, Tatsuya Hashimoto, Yoshiyuki Ozaki, Yukihiro Okada, Kenji Tsuchiya, Masanori Kitayoshi, Naoyuki Wada
  • Patent number: 9559350
    Abstract: The present invention provides a method for producing a nonaqueous electrolyte secondary battery in which the drop in capacity retention rate is controlled by forming a coating in a more favorable state on the surface of the negative electrode active material.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: January 31, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshihiko Mitsuhashi, Yoshiyuki Ozaki, Hideki Sano, Hajime Konishi
  • Publication number: 20150030931
    Abstract: The non-aqueous electrolyte secondary battery 10 provided by the present invention comprises a positive electrode 30, a negative electrode 50 and a non-aqueous electrolyte. The negative electrode 50 includes a negative electrode current collector 52 and a negative electrode active material layer 54 formed on the current collector 52, the negative electrode active material layer 54 containing a negative electrode active material 55 capable of storing and releasing charge carriers and having shape anisotropy so that the charge carriers are stored and released along a predefined direction. The negative electrode active material layer 54 includes, at a bottom thereof contacting the current collector 52, a minute conductive material 57 with granular shape and/or minute conductive material 57 with fibrous shape having an average particle diameter that is smaller than that of the negative electrode active material 55, and includes, at the bottom thereof; a part of the negative electrode active material 55.
    Type: Application
    Filed: December 14, 2011
    Publication date: January 29, 2015
    Inventors: Koji Takahata, Tatsuya Hashimoto, Yoshiyuki Ozaki, Yukihiro Okada, Kenji Tsuchiya, Masanori Kitayoshi, Naoyuki Wada
  • Publication number: 20140322579
    Abstract: The present invention provides a method for producing a nonaqueous electrolyte secondary battery in which the drop in capacity retention rate is controlled by forming a coating in a more favorable state on the surface of the negative electrode active material.
    Type: Application
    Filed: November 24, 2011
    Publication date: October 30, 2014
    Inventors: Toshihiko Mitsuhashi, Yoshiyuki Ozaki, Hideki Sano, Hajime Konishi
  • Publication number: 20130252056
    Abstract: The present invention provides an optimal non-aqueous electrolyte secondary battery having high durability against high rate charging and discharging and excellent safety. The non-aqueous electrolyte secondary battery 100 according to the present invention comprises a positive electrode 10, a negative electrode 20 and a separator 30 which is interposed between the positive electrode 10 and the negative electrode 20. The separator 30 has a two-layer structure which is composed of a porous polyethylene layer 34 mainly composed of polyethylene, and a porous polymer layer 32 mainly composed of a polymer having higher oxidation resistance than that of the polyethylene, and an inorganic filler layer 40 including an inorganic filler and a binder is formed on the surface of the polyethylene layer 34 on which the porous polymer layer 32 is not formed.
    Type: Application
    Filed: November 26, 2010
    Publication date: September 26, 2013
    Inventors: Tomoyoshi Ueki, Naoyuki Wada, Yoshiyuki Ozaki
  • Patent number: 8399131
    Abstract: Disclosed is a composite negative electrode active material including a graphitizable carbon material containing a layered structure formed of stacked carbon layers partially having a three-dimensional regularity, and a low crystalline carbon material. A negative electrode including the composite negative electrode active material is used to produce a non-aqueous electrolyte secondary battery. The non-aqueous electrolyte secondary battery thus produced has a high energy density and demonstrates a high output/input performance for a long period of time in various environments of high to low temperatures.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Yoshiyuki Ozaki, Hiroyuki Fujimoto
  • Patent number: 8252462
    Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and an insulating layer formed on a surface of the positive electrode. The positive electrode includes a lithium nickel composite oxide having a layer structure, and the lithium nickel composite oxide is represented by the general formula: LixNiyM1-yO2 where M is at least one selected from the group consisting of Na, Mg, Sc, Y, Mn, Fe, Co, Cu, Zn, Al, Cr, Pb, Sb, and B, 0<x?1.2, and 0.5<y?1.0. The non-aqueous electrolyte includes a solute and a non-aqueous solvent dissolving the solute, and the non-aqueous solvent contains 40% by weight or more of a cyclic carbonic acid ester. The insulating layer includes an insulating polymeric material.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: August 28, 2012
    Assignee: Panasonic Corporation
    Inventors: Naoyuki Wada, Yoshiyuki Ozaki, Shinji Kasamatsu, Yukihiro Okada
  • Publication number: 20110200888
    Abstract: An object is to provide a high capacity non-aqueous electrolyte secondary battery in which decomposition of propylene carbonate is suppressed. The non-aqueous electrolyte secondary battery includes: a negative electrode including graphite particles as a negative electrode active material; a positive electrode; a separator; and a non-aqueous electrolyte including propylene carbonate as a non-aqueous solvent. Each of the graphite particles has a surface portion including an amorphous region and a crystal region which includes a plurality of carbon hexagonal net planes stacked along a surface of the graphite particle. Ends of the stacked carbon hexagonal net planes form loops exposed on the surface of the graphite particle. At least a part of the loops are stacked, and the average number of the loops stacked is more than 1 and not more than 2.
    Type: Application
    Filed: August 3, 2010
    Publication date: August 18, 2011
    Inventors: Yoshiyuki Ozaki, Shinji Kasamatsu, Hideharu Sato, Shunsuke Yamada
  • Publication number: 20100178563
    Abstract: Disclosed is a composite negative electrode active material including a graphitizable carbon material containing a layered structure formed of stacked carbon layers partially having a three-dimensional regularity, and a low crystalline carbon material. A negative electrode including the composite negative electrode active material is used to produce a non-aqueous electrolyte secondary battery. The non-aqueous electrolyte secondary battery thus produced has a high energy density and demonstrates a high output/input performance for a long period of time in various environments of high to low temperatures.
    Type: Application
    Filed: June 2, 2008
    Publication date: July 15, 2010
    Applicants: PANASONIC CORPORATION, OSAKA GAS CO., LTD.
    Inventors: Yoshiyuki Ozaki, Hiroyuki Fujimoto
  • Patent number: 7706636
    Abstract: A part object which forms a model object is disposed by receiving a disposition direction for the part object and updating slot state data indicating a disposition state of the part object in a part slot provided corresponding to each part object. When another part object has been disposed in the part slot corresponding to the part object for which the disposition direction has been issued, whether or not to update the slot state data of the part slot is determined based on priority information which determines disposition priority of each part object, and the slot state data is updated based on the determination result.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: April 27, 2010
    Assignee: Namco Bandai Games Inc.
    Inventors: Taichi Higashino, Seidou Ozawa, Takashi Kumakura, Ryo Takahashi, Sei Nakatani, Yoshiyuki Ozaki
  • Patent number: 7669741
    Abstract: A method of manufacturing a pleated product capable of partially pleating a fabric so that boundaries between pleat portions and non-pleat portions can be conspicuous and a fabric for the pleated product used for the method. In this method, a part of the fabric for the pleated product in which one of warp and weft is formed of easy-to-pleat yarn and the other formed of hard-to-pleat yarn is folded along a folding line tilted relative to the warp and the weft, the fabric is pleated up to the folding line in the passing direction of the warp or the weft, and the fabric is unfolded and washed. Effective pleats are formed only in the passing direction of the easy-to-pleat yarn on a plane on one side of the folded portion and not formed in the passing direction of the hard-to-pleat yarn on a plane on the other side of the folded portion.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: March 2, 2010
    Assignee: Ozaki Pleats Co., Ltd.
    Inventor: Yoshiyuki Ozaki
  • Patent number: 7666551
    Abstract: A positive electrode active material for a non-aqueous electrolyte secondary battery of this invention includes: a lithium nickel composite oxide containing lithium, nickel, and at least one metal element other than lithium and nickel; and a layer containing lithium carbonate, aluminum hydroxide, and aluminum oxide, the layer being carried on the surface of the lithium nickel composite oxide. The lithium nickel composite oxide is composed such that the ratio of the nickel to the total of the nickel and the at least one metal element is 30 mol % or more. The layer is composed such that the amount of the lithium carbonate is 0.5 to 5 mol per 100 mol of the lithium nickel composite oxide. The total of aluminum atoms contained in the aluminum hydroxide and the aluminum oxide is 0.5 to 5 mol per 100 mol of the lithium nickel composite oxide.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: February 23, 2010
    Assignee: Panasonic Corporation
    Inventors: Yasutaka Kogetsu, Takaya Saito, Yoshiyuki Ozaki
  • Publication number: 20090286164
    Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and an insulating layer formed on a surface of the positive electrode. The positive electrode includes a lithium nickel composite oxide having a layer structure, and the lithium nickel composite oxide is represented by the general formula: LixNiyM1?yO2 where M is at least one selected from the group consisting of Na, Mg, Sc, Y, Mn, Fe, Co, Cu, Zn, Al, Cr, Pb, Sb, and B, 0<x?1.2, and 0.5<y?1.0. The non-aqueous electrolyte includes a solute and a non-aqueous solvent dissolving the solute, and the non-aqueous solvent contains 40% by weight or more of a cyclic carbonic acid ester. The insulating layer includes an insulating polymeric material.
    Type: Application
    Filed: May 4, 2009
    Publication date: November 19, 2009
    Inventors: Naoyuki WADA, Yoshiyuki OZAKI, Shinji KASAMATSU, Yukihiro OKADA
  • Publication number: 20090098448
    Abstract: The present invention can provide a composite negative electrode active material including a fused matter of a graphite material and a graphitizable carbon material undergoing graphitization. Such a composite negative electrode active material is prepared by heating a mixture of a graphite material and a graphitizable carbon material undergoing graphitization at 700° C. to 1300° C., and crushing the obtained fused matter. The use of the composite negative electrode active material makes it possible to provide a non-aqueous electrolyte secondary battery being excellent in output-input characteristics and having a high energy density and a long life.
    Type: Application
    Filed: October 16, 2007
    Publication date: April 16, 2009
    Inventors: Yoshiyuki Ozaki, Hiroyuki Fujimoto
  • Patent number: 7442470
    Abstract: In a high power output non-aqueous electrolyte secondary battery including a negative electrode including a graphitizable carbon material, the physical properties of the graphitizable carbon material is controlled. In a X-ray diffraction pattern of the graphitizable carbon material, a ratio of a peak intensity I(101) attributed to a (101) plane to a peak intensity I(100) attributed to a (100) plane satisfies 0<I(101)/I(100)<1.0. A ratio of a peak intensity I(110) attributed to a (110) plane to a peak intensity I(004) attributed to a (004) plane satisfies 0.7?I(110)/I(004) ?1.4. The graphitizable carbon material preferably has a specific surface area measured by BET method of 1 to 5 m2/g.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: October 28, 2008
    Assignees: Matsushita Electric Industrial Co., Ltd., Osaka Gas Chemicals Co., Ltd.
    Inventors: Yoshiyuki Ozaki, Kazuhiro Ota, Hiroyuki Fujimoto, Koichi Morita
  • Patent number: 7410511
    Abstract: A positive electrode active material, which gives a non-aqueous electrolyte secondary battery capable of high input/output where resistance due to a battery reaction in a low temperature environment is suppressed, is produced by a method comprising: (a)providing a nickel hydroxide which is represented by the general formula Ni1?(x+y)CoxMy(OH)2, (b)heating the nickel hydroxide at a temperature not lower than 600° C. and not higher than 1000° C. to produce a nickel oxide which is represented by the general formula Ni1?(x+y)CoxMyO; and (c)mixing the nickel oxide and a lithium compound to obtain a mixture and heating the mixture at a temperature not lower than 700° C. and not higher than 850° C. to produce a lithium-containing composite oxide which is represented by the general formula LiNi1?(x+y)CoxMyO2, where 0.1?x?0.35 and 0.03?y?0.2 are satisfied and M is at least one selected from the group consisting of Al, Ti and Sn.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: August 12, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiyuki Ozaki, Yasutaka Kogetsu, Takaya Saito, Hidekazu Hiratsuka
  • Patent number: 7374842
    Abstract: A non-aqueous electrolyte secondary battery, comprises positive and negative electrode plates, each comprising a current collector and a material mixture layer carried on each face thereof. A total thickness of the positive electrode material mixture layers on both faces of the current collector is 40 ?m to 100 ?m. The positive electrode plate has an electrode area of 520 cm2 to 800 cm2 per battery capacity of 1 Ah. The negative electrode material mixture layer comprises a graphitizable carbon material. A wide-range X-ray diffraction pattern of the graphitizable carbon material has a peak PX (101) attributed to a (101) crystal face at about 2?=44 degrees, and a peak PX (100) attributed to a (100) crystal face at about 2?=42 degrees. A ratio of an intensity IX (101) of PX (101) to an intensity IX (100) of PX(100) satisfies: 0<IX (101)/IX (100)<1.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: May 20, 2008
    Assignee: Matsushita Battery Industrial Co., Ltd.
    Inventors: Yoshiyuki Ozaki, Kazuhiro Ota, Junichi Yamaura, Takabumi Fujii
  • Publication number: 20060217008
    Abstract: A part object which forms a model object is disposed by receiving a disposition direction for the part object and updating slot state data indicating a disposition state of the part object in a part slot provided corresponding to each pant object. When another part object has been disposed in the part slot corresponding to the part object for which the disposition direction has been issued, whether or not to update the slot state data of the pant slot is determined based on priority information which determines disposition priority of each part object, and the slot state data is updated based on the determination result.
    Type: Application
    Filed: March 22, 2006
    Publication date: September 28, 2006
    Applicant: NAMCO BANDAI GAMES INC.
    Inventors: Taichi Higashino, Seidou Ozawa, Takashi Kumakura, Ryo Takahashi, Sei Nakatani, Yoshiyuki Ozaki