Patents by Inventor Takashi Fujinaga

Takashi Fujinaga 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: 9059452
    Abstract: There is provided an anode for a lithium ion secondary battery capable of improving the cycle characteristics, a lithium ion secondary battery using the same, an electric power tool using the lithium ion secondary battery, an electrical vehicle using the lithium ion secondary battery, and an electric power storage system using the lithium ion secondary battery. The anode for a lithium ion secondary battery includes an anode active material layer in which a first layer and a second layer respectively containing silicon and a metal element as an anode active material are alternately layered on an anode current collector, and 1.02?A/B?50 is satisfied. A represents a silicon content ratio in the anode active material in the first layer, and B represents a silicon content ratio in the anode active material in the second layer.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: June 16, 2015
    Assignee: SONY CORPORATION
    Inventors: Shunsuke Kurasawa, Takashi Fujinaga, Momoe Adachi, Kenichi Kawase
  • Patent number: 9051863
    Abstract: An object of the present invention is to provide a flue gas purifying device that can efficiently decrease nitrogen oxides in flue gas.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: June 9, 2015
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masazumi Tanoura, Kenji Muta, Minoru Danno, Masatoshi Katsuki, Yuuko Ujihara, Daishi Ueno, Takashi Fujinaga, Eiji Kato, Shinichiro Asami, Tadashi Aoki, Kageharu Moriyama
  • Patent number: 9048485
    Abstract: A lithium-ion secondary battery includes a positive electrode, a negative electrode containing an active material, and an electrolytic solution, in which the active material includes a core portion capable of occluding and releasing lithium ions, and a covering portion arranged on at least part of a surface of the core portion, in which the covering portion contains, as constituent elements, Si, O, and at least one element M1 selected from Li, C, Mg, Al, Ca, Ti, Cr, Mn, Fe, Co, Ni, Cu, Ge, Zr, Mo, Ag, Sn, Ba, W, Ta, Na, and K, and the atomic ratio y (O/Si) of O to Si is 0.5?y?1.8.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: June 2, 2015
    Assignee: SONY CORPORATION
    Inventors: Takakazu Hirose, Kenichi Kawase, Takashi Fujinaga, Isao Koizumi, Toshio Nishi
  • Patent number: 8999583
    Abstract: A lithium-ion secondary battery allowed to improve cycle characteristics and initial charge-discharge characteristics is provided. The lithium-ion secondary battery includes a cathode; an anode; and an electrolytic solution. The anode includes an anode active material layer including a plurality of anode active material particles. The anode active material particles each include a core section and a coating section applied to a part or a whole of a surface of the core section, and the core section includes a silicon-based material (SiOx: 0?x<0.5) and the coating section includes an amorphous or low-crystalline silicon-based material (SiOy: 0.5?y?1.8).
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: April 7, 2015
    Assignee: Sony Corporation
    Inventors: Takakazu Hirose, Kenichi Kawase, Takashi Fujinaga, Masaharu Senoue, Motoki Endo, Masayuki Iwama
  • Patent number: 8968935
    Abstract: A lithium ion secondary battery having more superior cycle characteristics is provided. The lithium ion secondary battery includes a cathode, an anode, and an electrolyte. The anode has an anode active material layer in which a first layer containing silicon as an anode active material, and a second layer containing silicon and a metal element as an anode active material are alternately layered on an anode current collector. At least one of a lamellar oxide-containing region and a lamellar nitrogen-containing region is inserted in at least one of the first layer and the second layer.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: March 3, 2015
    Assignee: Sony Corporation
    Inventors: Shunsuke Kurasawa, Kenichi Kawase, Takashi Fujinaga
  • Patent number: 8932757
    Abstract: A lithium ion secondary battery having superior cycle characteristic is provided. The lithium ion secondary battery includes a cathode, an anode and an electrolyte. The anode has an anode active material layer including a plurality of anode active material fibers containing silicon as an element provided on an anode current collector.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: January 13, 2015
    Assignee: Sony Corporation
    Inventors: Takashi Fujinaga, Shunsuke Kurasawa, Momoe Adachi, Kenichi Kawase
  • Publication number: 20140072866
    Abstract: A secondary battery includes: a cathode and an anode opposed to each other with a separator in between; an electrolyte layer provided between the anode and the separator; and an adhesion layer provided between the anode and the electrolyte layer, wherein the anode includes an active material and a first polymer compound, the electrolyte layer includes an electrolytic solution and a second polymer compound, the adhesion layer includes a third polymer compound, the first polymer compound includes a polar group, the second polymer compound includes a polymer chain, and the third polymer compound includes a polar group and a polymer chain same as the polymer chain of the second polymer compound.
    Type: Application
    Filed: August 23, 2013
    Publication date: March 13, 2014
    Applicant: Sony Corporation
    Inventors: Keitaro Kitada, Takashi Fujinaga
  • Patent number: 8607547
    Abstract: An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved by a flue gas purifying device including: an exhaust pipe; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalytic unit that includes a urea SCR catalyst that promotes a reaction between ammonia and nitrogen oxides and a support mechanism that supports the urea SCR catalyst in the exhaust pipe, and is arranged on a downstream side to a position where urea water is injected; a concentration measuring unit arranged on a downstream side to the catalytic unit in a flow direction of flue gas to measure an ammonia concentration in flue gas having passed through the urea SCR catalyst; and a control unit that controls injection of urea water by the urea-water injecting unit based on an ammonia concentration measured by the concentration measuring unit.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: December 17, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Masazumi Tanoura, Kenji Muta, Minoru Danno, Masatoshi Katsuki, Yuuko Ujihara, Daishi Ueno, Takashi Fujinaga, Eiji Kato, Shinichiro Asami, Tadashi Aoki
  • Publication number: 20130179133
    Abstract: A motor design method, a motor (11) designed by the motor design method, and an electric vehicle (10) provided with the motor (11) include a first calculation step of obtaining a set of a number of revolutions required to achieve a predetermined running pattern and a torque required to achieve the predetermined running pattern, a second calculation step of selecting a motor efficiency corresponding to the number of revolutions and the torque from any one of motor characteristic curves, a third calculation step of obtaining a work amount from the number of revolutions and the torque and obtaining power consumption by dividing the work amount by the motor efficiency, and a fourth calculation step of obtaining a sum of the power consumption by repeating the first calculation step, the second calculation step, and the third calculation step over the entire running time.
    Type: Application
    Filed: October 19, 2011
    Publication date: July 11, 2013
    Inventors: Takashi Fujinaga, Yasushi Mitsuyama, Hideki Hashimoto, Shinji Okada
  • Patent number: 8383267
    Abstract: A secondary battery having high cycle characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolyte. In the anode, an anode active material layer containing silicon, carbon, and oxygen as an anode active material is provided on an anode current collector. In the anode active material, a content of carbon is from 0.2 atomic % to 10 atomic % both inclusive, and a content of oxygen is from 0.5 atomic % to 40 atomic % both inclusive. A ratio from 0.1% to 17.29% both inclusive of the silicon contained in the anode active material exists as Si—C bond.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: February 26, 2013
    Assignee: Sony Corporation
    Inventors: Isamu Konishiike, Kotaro Satori, Kenichi Kawase, Shunsuke Kurasawa, Koichi Matsumoto, Takakazu Hirose, Masayuki Iwama, Takashi Fujinaga
  • Publication number: 20120328915
    Abstract: A lithium-ion secondary battery includes a positive electrode, a negative electrode containing an active material, and an electrolytic solution, in which the active material includes a core portion capable of occluding and releasing lithium ions, and a covering portion arranged on at least part of a surface of the core portion, in which the covering portion contains, as constituent elements, Si, O, and at least one element M1 selected from Li, C, Mg, Al, Ca, Ti, Cr, Mn, Fe, Co, Ni, Cu, Ge, Zr, Mo, Ag, Sn, Ba, W, Ta, Na, and K, and the atomic ratio y (O/Si) of O to Si is 0.5?y?1.8.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 27, 2012
    Applicant: SONY CORPORATION
    Inventors: Takakazu Hirose, Kenichi Kawase, Takashi Fujinaga, Isao Koizumi, Toshio Nishi
  • Publication number: 20120328945
    Abstract: A lithium ion secondary battery is provided with a positive electrode, a negative electrode containing an active material, and an electrolytic solution, wherein the active material includes a core portion capable of occluding and releasing lithium ions, an amorphous or low-crystalline coating portion disposed on at least a part of the surface of the core portion, and a fibrous carbon portion disposed on at least a part of the surface of the coating portion, and the coating portion contains Si and O as constituent elements, while the atomic ratio y (O/Si) of O relative to Si satisfies 0.5?y?1.8.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 27, 2012
    Applicant: SONY CORPORATION
    Inventors: Takakazu Hirose, Takashi Fujinaga, Isao Koizumi, Norihiro Shimoi, Kenichi Kawase
  • Publication number: 20120047879
    Abstract: A flue gas purifying device includes an exhaust pipe that guides flue gas discharged from an internal combustion engine; a catalytic unit that is arranged on a downstream side to the internal combustion engine in a flow direction of flue gas and includes a nitrogen-oxide storage-reduction catalyst that stores nitrogen oxides contained in flue gas and a support mechanism that is arranged in the exhaust pipe and supports the nitrogen-oxide storage-reduction catalyst in the exhaust pipe; a reducing-agent injecting unit that injects a reducing agent to the catalytic unit in the exhaust pipe; a concentration measuring unit that is arranged on a downstream side to the catalytic unit in the flow direction of flue gas and measures a concentration of nitrogen oxides in flue gas having passed through the nitrogen-oxide storage-reduction catalyst; and a control unit that controls whether to inject the reducing agent from the reducing-agent injecting unit based on a concentration of nitrogen oxides measured by the concen
    Type: Application
    Filed: January 27, 2010
    Publication date: March 1, 2012
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yuuko Ujihara, Masazumi Tanoura, Kenji Muta, Minoru Danno, Masatoshi Katsuki, Daishi Ueno, Takashi Fujinaga, Eiji Kato, Shinichiro Asami, Tadashi Aoki
  • Publication number: 20120040242
    Abstract: A lithium ion secondary battery having more superior cycle characteristics is provided. The lithium ion secondary battery includes a cathode, an anode, and an electrolyte. The anode has an anode active material layer in which a first layer containing silicon as an anode active material, and a second layer containing silicon and a metal element as an anode active material are alternately layered on an anode current collector. At least one of a lamellar oxide-containing region and a lamellar nitrogen-containing region is inserted in at least one of the first layer and the second layer.
    Type: Application
    Filed: January 28, 2011
    Publication date: February 16, 2012
    Applicant: SONY CORPORATION
    Inventors: Shunsuke Kurasawa, Kenichi Kawase, Takashi Fujinaga
  • Publication number: 20110293483
    Abstract: An object of the present invention is to provide a flue gas purifying device that can efficiently decrease nitrogen oxides in flue gas.
    Type: Application
    Filed: January 27, 2010
    Publication date: December 1, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masazumi Tanoura, Kenji Muta, Minoru Danno, Masatoshi Katsuki, Yuuko Ujihara, Daishi Ueno, Takashi Fujinaga, Eiji Kato, Shinichiro Asami, Tadashi Aoki, Kageharu Moriyama
  • Publication number: 20110252771
    Abstract: An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved by including: an exhaust pipe that guides flue gas discharged from an internal combustion engine; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalyst unit that includes a urea SCR catalyst that promotes a reaction between ammonia produced from injected urea water and nitrogen oxides and a support mechanism arranged inside of the exhaust pipe on a downstream side to a position where urea water is injected in a flow direction of the flue gas to support the urea SCR catalyst; an ammonia-concentration measuring unit that measures an ammonia concentration in flue gas at a measurement position in a region where the SCR catalyst is arranged; and an injection control unit that controls injection of urea water based on a measurement result acquired by the ammonia-concentration measuring unit.
    Type: Application
    Filed: December 8, 2009
    Publication date: October 20, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takashi Fujinaga, Masazumi Tanoura, Daishi Ueno, Yasushi Mitsuyama
  • Publication number: 20110239629
    Abstract: An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved by a flue gas purifying device including: an exhaust pipe; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalytic unit that includes a urea SCR catalyst that promotes a reaction between ammonia and nitrogen oxides and a support mechanism that supports the urea SCR catalyst in the exhaust pipe, and is arranged on a downstream side to a position where urea water is injected; a concentration measuring unit arranged on a downstream side to the catalytic unit in a flow direction of flue gas to measure an ammonia concentration in flue gas having passed through the urea SCR catalyst; and a control unit that controls injection of urea water by the urea-water injecting unit based on an ammonia concentration measured by the concentration measuring unit.
    Type: Application
    Filed: December 4, 2009
    Publication date: October 6, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masazumi Tanoura, Kenji Muta, Minoru Danno, Masatoshi Katsuki, Yuuko Ujihara, Daishi Ueno, Takashi Fujinaga, Eiji Kato, Shinichiro Asami, Tadashi Aoki
  • Publication number: 20110192622
    Abstract: There is provided an anode for a lithium ion secondary battery capable of improving the cycle characteristics, a lithium ion secondary battery using the same, an electric power tool using the lithium ion secondary battery, an electrical vehicle using the lithium ion secondary battery, and an electric power storage system using the lithium ion secondary battery. The anode for a lithium ion secondary battery includes an anode active material layer in which a first layer and a second layer respectively containing silicon and a metal element as an anode active material are alternately layered on an anode current collector, and 1.02?A/B?50 is satisfied. A represents a silicon content ratio in the anode active material in the first layer, and B represents a silicon content ratio in the anode active material in the second layer.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 11, 2011
    Applicant: SONY CORPORATION
    Inventors: Shunsuke Kurasawa, Takashi Fujinaga, Momoe Adachi, Kenichi Kawase
  • Publication number: 20110192623
    Abstract: A lithium ion secondary battery having superior cycle characteristic is provided. The lithium ion secondary battery includes a cathode, an anode and an electrolyte. The anode has an anode active material layer including a plurality of anode active material fibers containing silicon as an element provided on an anode current collector.
    Type: Application
    Filed: January 31, 2011
    Publication date: August 11, 2011
    Applicant: SONY CORPORATION
    Inventors: Takashi Fujinaga, Shunsuke Kurasawa, Momoe Adachi, Kenichi Kawase
  • Publication number: 20110159368
    Abstract: A lithium-ion secondary battery allowed to improve cycle characteristics and initial charge-discharge characteristics is provided. The lithium-ion secondary battery includes a cathode; an anode; and an electrolytic solution. The anode includes an anode active material layer including a plurality of anode active material particles. The anode active material particles each include a core section and a coating section applied to a part or a whole of a surface of the core section, and the core section includes a silicon-based material (SiOx: 0?x<0.5) and the coating section includes an amorphous or low-crystalline silicon-based material (SiOy: 0.5?y?1.8).
    Type: Application
    Filed: December 16, 2010
    Publication date: June 30, 2011
    Applicant: SONY CORPORATION
    Inventors: Takakazu Hirose, Kenichi Kawase, Takashi Fujinaga, Masaharu Senoue, Motoki Endo, Masayuki Iwama