Patents by Inventor Kimio Tajima

Kimio Tajima 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: 10707539
    Abstract: A battery is provided including an anode, a cathode and an electrolyte; wherein the electrolyte includes one or both of fluoro ethylene carbonate and difluoro ethylene carbonate in an amount of 0.5% by mass or more and 10% by mass or less, wherein the anode includes an anode active material layer provided on an anode current collector, and wherein a thickness of the anode active material layer, after charging the battery, is 58 um or more and 75 um or less.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: July 7, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • Publication number: 20180076490
    Abstract: A battery is provided including an anode, a cathode and an electrolyte; wherein the electrolyte includes one or both of fluoro ethylene carbonate and difluoro ethylene carbonate in an amount of 0.5% by mass or more and 10% by mass or less, wherein the anode includes an anode active material layer provided on an anode current collector, and wherein a thickness of the anode active material layer, after charging the battery, is 58 um or more and 75 um or less.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 15, 2018
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • Patent number: 9831532
    Abstract: The present application provides a nonaqueous electrolyte secondary battery that includes, a cathode capable of being electrochemically doped/dedoped with lithium, an anode capable of being electrochemically doped/dedoped with lithium, and an electrolyte placed between the cathode and the anode, wherein the electrolyte contains at least one of fluoro ethylene carbonate represented by Chemical Formula (1) and difluoro ethylene carbonate represented by Chemical Formula (2) as a solvent and the ratio of a discharge capacity B during discharging at a 5C rate to a discharge capacity A during discharging at a 0.2C rate ((B/A)×100) is 80% or more.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: November 28, 2017
    Assignee: Sony Corporation
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • Patent number: 9647298
    Abstract: A nonaqueous electrolyte battery is provided. The nonaqueous electrolyte battery includes an anode; a cathode; a separator; an electrolytic solution including a solvent and an electrolyte salt; wherein the solvent includes a fluoro ethylene carbonate, wherein the nonaqueous electrolyte battery has a discharge capacity ratio of a discharge capacity B when discharging at a 5 C rate to a discharge capacity A when discharging at a 0.2 C rate ((B/A)×100%), and wherein the discharge capacity ratio is 80% or more. An electrical apparatus including a nonaqueous electrolyte battery is also provided.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 9, 2017
    Assignee: Sony Corporation
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • Patent number: 9575137
    Abstract: A control apparatus includes, for example, an input unit to which a plurality of pieces of voltage information related to a voltage of an electric storage unit upon discharge are input, and a determination unit configured to use the voltage information in an early stage of the discharge and determine the presence or absence of a deterioration of the electric storage unit.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: February 21, 2017
    Assignee: SONY CORPORATION
    Inventors: Kimio Tajima, Kohki Watanabe
  • Publication number: 20160301110
    Abstract: A nonaqueous electrolyte battery is provided. The nonaqueous electrolyte battery includes an anode; a cathode; a separator; an electrolytic solution including a solvent and an electrolyte salt; wherein the solvent includes a fluoro ethylene carbonate, wherein the nonaqueous electrolyte battery has a discharge capacity ratio of a discharge capacity B when discharging at a 5 C rate to a discharge capacity A when discharging at a 0.2 C rate ((B/A)×100%), and wherein the discharge capacity ratio is 80% or more. An electrical apparatus including a nonaqueous electrolyte battery is also provided.
    Type: Application
    Filed: June 16, 2016
    Publication date: October 13, 2016
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • Publication number: 20150293182
    Abstract: A control apparatus includes, for example, an input unit to which a plurality of pieces of voltage information related to a voltage of an electric storage unit upon discharge are input, and a determination unit configured to use the voltage information in an early stage of the discharge and determine the presence or absence of a deterioration of the electric storage unit.
    Type: Application
    Filed: October 24, 2013
    Publication date: October 15, 2015
    Inventors: Kimio Tajima, Kohki Watanabe
  • Publication number: 20140080007
    Abstract: The present application provides a nonaqueous electrolyte secondary battery that includes, a cathode capable of being electrochemically doped/dedoped with lithium, an anode capable of being electrochemically doped/dedoped with lithium, and an electrolyte placed between the cathode and the anode, wherein the electrolyte contains at least one of fluoro ethylene carbonate represented by Chemical Formula (1) and difluoro ethylene carbonate represented by Chemical Formula (2) as a solvent and the ratio of a discharge capacity B during discharging at a 5C rate to a discharge capacity A during discharging at a 0.2C rate ((B/A)×100) is 80% or more.
    Type: Application
    Filed: November 19, 2013
    Publication date: March 20, 2014
    Applicant: Sony Corporation
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • Patent number: 8609286
    Abstract: The present application provides a nonaqueous electrolyte secondary battery that includes, a cathode capable of being electrochemically doped/dedoped with lithium, an anode capable of being electrochemically doped/dedoped with lithium, and an electrolyte placed between the cathode and the anode, wherein the electrolyte contains at least one of fluoro ethylene carbonate represented by Chemical Formula (1) and difluoro ethylene carbonate represented by Chemical Formula (2) as a solvent and the ratio of a discharge capacity B during discharging at a 5C rate to a discharge capacity A during discharging at a 0.2C rate ((B/A)×100) is 80% or more.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: December 17, 2013
    Assignee: Sony Corporation
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • Publication number: 20090123849
    Abstract: The present application provides a nonaqueous electrolyte secondary battery that includes, a cathode capable of being electrochemically doped/dedoped with lithium, an anode capable of being electrochemically doped/dedoped with lithium, and an electrolyte placed between the cathode and the anode, wherein the electrolyte contains at least one of fluoro ethylene carbonate represented by Chemical Formula (1) and difluoro ethylene carbonate represented by Chemical Formula (2) as a solvent and the ratio of a discharge capacity B during discharging at a 5C rate to a discharge capacity A during discharging at a 0.2C rate ((B/A)×100) is 80% or more.
    Type: Application
    Filed: October 24, 2008
    Publication date: May 14, 2009
    Applicant: Sony Corporation
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto