Patents by Inventor Tomonobu Tsujikawa
Tomonobu Tsujikawa 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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Publication number: 20230195192Abstract: The present disclosure provides novel and improved information processing apparatus, information processing method, and program with which it is easy for a user to predict a future remaining battery amount. According to the present disclosure, there is provided an information processing apparatus including a control unit that performs control to calculate a future prediction value of remaining battery amount on the basis of a use history of an information processing apparatus by a user and to present prediction value related information related to the prediction value to the user. According to the present disclosure, the user can easily predict the future remaining battery amount. Note that the effects described above are not necessarily limitative. With or in the place of the above effects, there may be achieved any one of the effects described in this specification or other effects that may be grasped from this specification.Type: ApplicationFiled: February 17, 2023Publication date: June 22, 2023Applicants: Sony Mobile Communications Inc., Sony Group CorporationInventors: Tomoo MIZUKAMI, Noriaki SAKAMOTO, Tomonobu TSUJIKAWA, Shota KAWARAZAKI, Ryo NAKAGAWA, Yoshiyuki KOBAYASHI
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Patent number: 11609621Abstract: The present disclosure provides novel and improved information processing apparatus, information processing method, and program with which it is easy for a user to predict a future remaining battery amount. According to the present disclosure, there is provided an information processing apparatus including a control unit that performs control to calculate a future prediction value of remaining battery amount on the basis of a use history of an information processing apparatus by a user and to present prediction value related information related to the prediction value to the user. According to the present disclosure, the user can easily predict the future remaining battery amount. Note that the effects described above are not necessarily limitative. With or in the place of the above effects, there may be achieved any one of the effects described in this specification or other effects that may be grasped from this specification.Type: GrantFiled: December 23, 2021Date of Patent: March 21, 2023Assignees: SONY MOBILE COMMUNICATIONS INC., SONY GROUP CORPORATIONInventors: Tomoo Mizukami, Noriaki Sakamoto, Tomonobu Tsujikawa, Shota Kawarazaki, Ryo Nakagawa, Yoshiyuki Kobayashi
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Publication number: 20220113778Abstract: The present disclosure provides novel and improved information processing apparatus, information processing method, and program with which it is easy for a user to predict a future remaining battery amount. According to the present disclosure, there is provided an information processing apparatus including a control unit that performs control to calculate a future prediction value of remaining battery amount on the basis of a use history of an information processing apparatus by a user and to present prediction value related information related to the prediction value to the user. According to the present disclosure, the user can easily predict the future remaining battery amount. Note that the effects described above are not necessarily limitative. With or in the place of the above effects, there may be achieved any one of the effects described in this specification or other effects that may be grasped from this specification.Type: ApplicationFiled: December 23, 2021Publication date: April 14, 2022Applicants: Sony Mobile Communications Inc., Sony Group CorporationInventors: Tomoo MIZUKAMI, Noriaki SAKAMOTO, Tomonobu TSUJIKAWA, Shota KAWARAZAKI, Ryo NAKAGAWA, Yoshiyuki KOBAYASHI
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Patent number: 11209884Abstract: The present disclosure provides novel and improved information processing apparatus, information processing method, and program with which it is easy for a user to predict a future remaining battery amount. According to the present disclosure, there is provided an information processing apparatus including a control unit that performs control to calculate a future prediction value of remaining battery amount on the basis of a use history of an information processing apparatus by a user and to present prediction value related information related to the prediction value to the user. According to the present disclosure, the user can easily predict the Future remaining battery amount. Note that the effects described above are not necessarily limitative. With or in the place of the above effects, there may be achieved any one of the effects described in this specification or other effects that may be grasped from this specification.Type: GrantFiled: December 28, 2017Date of Patent: December 28, 2021Assignees: SONY MOBILE COMMUNICATIONS INC., SONY CORPORATIONInventors: Tomoo Mizukami, Noriaki Sakamoto, Tomonobu Tsujikawa, Shota Kawarazaki, Ryo Nakagawa, Yoshiyuki Kobayashi
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Publication number: 20200042064Abstract: The present disclosure provides novel and improved information processing apparatus, information processing method, and program with which it is easy for a user to predict a future remaining battery amount. According to the present disclosure, there is provided an information processing apparatus including a control unit that performs control to calculate a future prediction value of remaining battery amount on the basis of a use history of an information processing apparatus by a user and to present prediction value related information related to the prediction value to the user. According to the present disclosure, the user can easily predict the future remaining battery amount. Note that the effects described above are not necessarily limitative. With or in the place of the above effects, there may be achieved any one of the effects described in this specification or other effects that may be grasped from this specification.Type: ApplicationFiled: December 28, 2017Publication date: February 6, 2020Applicants: Sony Mobile Communications Inc., Sony CorporationInventors: Tomoo MIZUKAMI, Noriaki SAKAMOTO, Tomonobu TSUJIKAWA, Shota KAWARAZAKI, Ryo NAKAGAWA, Yoshiyuki KOBAYASHI
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Patent number: 9515353Abstract: A non-aqueous electrolyte, lithium-ion secondary battery includes an electrode group in which positive and negative electrode plates are wound via a separator accommodated into a battery container into which a non-aqueous electrolyte is injected. In the positive electrode plate, a positive electrode mixture layer including a lithium transition metal complex oxide is formed at both surfaces of an aluminum foil. A flame retardant layer containing a phosphazene compound as a flame retardant and a polyethylene oxide of a binder having ionic conductivity is formed at a surface of the positive electrode mixture layer. In the negative electrode plate, a negative electrode mixture layer including a carbon material of a negative electrode active material is formed at both surfaces of rolled copper foil. Ionic conductivity is secured by the polyethylene oxide, and the phosphazene compound decomposes when a battery temperature rises due to battery abnormality.Type: GrantFiled: September 5, 2011Date of Patent: December 6, 2016Assignees: NTT FACILITIES, INC., HITACHI CHEMICAL COMPANY, LTD.Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Kenji Kurita, Masayuki Terada
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Patent number: 9246150Abstract: A non-aqueous electrolyte battery in which formation of a flame retardant layer formed on the surface of an electrode or the like hardly affects the discharge characteristics is provided. A non-aqueous electrolyte battery 1 includes a positive electrode 3, a negative electrode 5, and a separator 7. A porous layer having ion permeability is formed using a flame retardant material on a surface of the positive electrode 3. The porous layer is formed by applying a hot melt, which is a fused flame retardant material made of a thermoplastic resin, to the surface of the positive electrode 3.Type: GrantFiled: September 6, 2011Date of Patent: January 26, 2016Assignee: Shin-Kobe Electric Machinery Co., Ltd.Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Hiroo Nishiyama, Katsuhide Aichi
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Publication number: 20140234693Abstract: Provided herein is a nonaqueous electrolyte battery separator capable of rendering a battery flame-retardant and suppressing a reduction in battery performance is provided. A porous front-side protective layer 47 is formed on a front surface 45A of a porous base material 45 made of a polyolefin-based resin. The front-side protective layer 47 protects the porous base material 45 such that the porous base material 45 is not thermally deformed or thermally contracted. A porous front-side flame retardant layer 49 is formed on the front-side protective layer 47. The front-side flame retardant layer 49 contains solid flame retardant having a melting point lower than the ignition temperature of a nonaqueous electrolyte.Type: ApplicationFiled: September 5, 2012Publication date: August 21, 2014Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Tadashi Yoshiura
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Publication number: 20140212752Abstract: A non-aqueous electrolyte secondary battery capable of improving a high rate discharge property while securing safety is provided. A laminated electrode group 10 is sealed in a laminate film of an outer casing in a lithium-ion secondary battery. A positive electrode plate 14 and a negative electrode plate 15 are stacked alternatively in the laminated electrode group 10. In the positive electrode plate 14, a positive electrode mixture layer W2 containing a lithium manganese complex oxide of a positive electrode active material is formed at both surfaces of an aluminum foil W1. In the positive electrode mixture layer W2, other than the positive electrode active material, a carbon material of a conductor and a phosphazene compound of a flame retardant are dispersed and mixed uniformly. A ratio of a mass of the conductor to that of the flame retardant is set to 1.3 or more.Type: ApplicationFiled: September 3, 2012Publication date: July 31, 2014Inventors: Masayasu Arakawa, Tomonobu Tsujikawa, Yoshiki Miyamoto, Koji Hayashi
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Publication number: 20130252090Abstract: A non-aqueous electrolyte battery capable of securing safety at a time of battery abnormality and restricting a drop in capacity or output at a time of battery use is provided. In a lithium-ion secondary battery 20, an electrode group 6 that positive and negative electrode plates are wound via a separator is accommodated into a battery container 7 into which a non-aqueous electrolyte is injected. In the positive electrode plate, a positive electrode mixture layer W2 including a lithium transition metal complex oxide is formed at both surfaces of an aluminum foil W1. A flame retardant layer W6 containing a phosphazene compound of a flame retardant and a polyethylene oxide of a binder having ionic conductivity is formed at a surface of the positive electrode mixture layer W2. In the negative electrode plate, a negative electrode mixture layer W6 including a carbon material of a negative electrode active material is formed at both surfaces of rolled copper foil W3.Type: ApplicationFiled: September 5, 2011Publication date: September 26, 2013Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Kenji Kurita, Masayuki Terada
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Publication number: 20130230773Abstract: A non-aqueous electrolyte battery capable of securing safety at a time of battery abnormality and restricting a drop in a charge/discharge property or lowering in an energy density at a time of battery use is provided. The lithium-ion secondary battery 1 has an electrode group 5 formed by winding a positive electrode plate 2 that a positive electrode mixture layer including an active material is formed at a collector, a negative electrode plate 3 that a negative electrode mixture layer including an active material is formed at a collector via a porous separator 4. A flame retardant layer is disposed at one side or both sides of at least one kind of the positive electrode plate, the negative electrode plate and the separator. The flame retardant layer contains a non-fluorinated organic polymer, a flame retardant and a thickener.Type: ApplicationFiled: September 5, 2011Publication date: September 5, 2013Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Katsuhide Aichi, Yoshiki Miyamoto, Hiroo Nishiyama
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Publication number: 20130216920Abstract: A non-aqueous electrolyte battery capable of flattening of a voltage property and securing safety at a time of battery abnormality is provided. A lithium-ion secondary battery 20 has an electrode group 6 in which a positive and a negative electrode plates are wound. A non-aqueous electrolyte is formed by adding LiBF4 to a mixed solvent of EC and DMC. In the positive electrode plate, a positive electrode mixture layer W2 including a positive electrode active material is formed at both surfaces of an aluminum foil W1. A lithium manganese magnesium complex oxide having a spinel crystal structure is used as the positive electrode active material. A flame retardant layer W6 including a phosphazene compound is formed at a surface of the positive electrode mixture layer W2. In the negative electrode plate, a negative electrode mixture layer W4 including a negative electrode active material is formed at both surfaces of a rolled copper foil W3.Type: ApplicationFiled: September 5, 2011Publication date: August 22, 2013Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Masayuki Terada, Koji Hayashi
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Publication number: 20130216899Abstract: A lithium-ion secondary battery capable of securing safety at a time of battery abnormality and restricting a drop in a high rate discharge property is provided. A lithium-ion secondary battery 1 has an electrode group 5 formed by winding a positive electrode plate 2 in which a positive electrode mixture including a positive electrode active material is formed at a collector and a negative electrode plate 3 in which a negative electrode mixture including a negative electrode active material is formed at a collector via a porous separator 4. A flame retardant is mixed to the positive electrode mixture of the positive electrode plate 2. The mode of pore diameters formed at the positive electrode mixture, which is measured by a mercury porosimetry, is set to a range of from 0.5 to 2.0 ?m. The moving path for lithium-ions and at the same time the moving path for electrons are secured at a charge/discharge time.Type: ApplicationFiled: September 5, 2011Publication date: August 22, 2013Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Yoshiki Miyamoto, Koji Hayashi, Masaki Nakahara
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Publication number: 20130216908Abstract: A non-aqueous electrolyte battery capable of securing safety at a time of battery abnormality and restricting a drop in a charge/discharge property at a time of battery use is provided. In a lithium-ion secondary battery 20, an electrode group 6 is accommodated in a battery container 7. The electrode group 6 is formed by winding a positive electrode plate and a negative electrode plate via a separator W5. The positive electrode plate has an aluminum foil W1 as a positive electrode collector. A positive electrode mixture layer W2 including a positive electrode active material is formed at both surfaces of the aluminum foil W1. A flame retardant layer W6 containing a flame retardant is formed at both surfaces of the positive electrode mixture layer W2. A carbon material which has electron conductivity and of which mass ratio to the flame retardant is 25% or less is contained in the flame retardant layer W6. The negative electrode plate has a rolled copper foil W3 as a negative electrode collector.Type: ApplicationFiled: September 5, 2011Publication date: August 22, 2013Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Hirokazu Denma, Koji Hayashi
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Publication number: 20130209860Abstract: A non-aqueous electrolyte battery in which formation of a flame retardant layer formed on the surface of an electrode or the like hardly affects the discharge characteristics is provided. A non-aqueous electrolyte battery 1 includes a positive electrode 3, a negative electrode 5, and a separator 7. A porous layer having ion permeability is formed using a flame retardant material on a surface of the positive electrode 3. The porous layer is formed by applying a hot melt, which is a fused flame retardant material made of a thermoplastic resin, to the surface of the positive electrode 3.Type: ApplicationFiled: September 6, 2011Publication date: August 15, 2013Applicant: SHIN-KOBE ELECTRIC MACHINERY CO., LTD.Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Hiroo Nishiyama, Katsuhide Aichi
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Publication number: 20130209870Abstract: A non-aqueous electrolyte battery providing high safety and having stable battery characteristics in which a flame retardant has little effect on the battery characteristics when the battery is in a use environment and in which flame retardance is imparted to a non-aqueous electrolyte when the battery generates an abnormal amount of heat is provided. The battery includes a non-aqueous electrolyte and a large number of flame retardant particles added to the electrolyte as the flame retardant is formed. The particles are made of a material that exists as a solid and does not perform a function of suppressing ignition when the temperature of the electrolyte is equal to or less than a reference temperature at which the electrolyte is likely to start combustion and that is at least partially liquefied and performs a function of suppressing combustion when the temperature of the non-aqueous electrolyte is more than the reference temperature.Type: ApplicationFiled: September 6, 2011Publication date: August 15, 2013Applicant: SHIN-KOBE ELECTRIC MACHINERY CO LTDInventors: Tomonobu Tsujikawa, Masayasu Arakawa, Hiroo Nishiyama, Katsuhide Aichi
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Publication number: 20120003514Abstract: A non-aqueous electrolyte battery capable of making behavior of the battery calm at a time of battery abnormality to secure safety is provided. In a lithium-ion secondary battery 20, an electrode group 6 is accommodated in a cylindrical battery container 7 having a bottom. A positive electrode plate and a negative electrode plate are wound via separators W5 to form the electrode group 6. The positive electrode plate has an aluminum foil W1 as a positive electrode collector. A positive electrode mixture including a lithium transition metal complex oxide as a positive electrode active material is applied to both surfaces of the aluminum foil W1 to form a positive electrode mixture layer W2. A flame retardant layer W6 containing a flame retardant is formed at a surface of the positive electrode mixture layer W2. The negative electrode plate has a rolled copper foil W3 as a negative electrode collector.Type: ApplicationFiled: March 3, 2010Publication date: January 5, 2012Inventors: Tomonobu Tsujikawa, Toshio Matsushima, Masahiro Ichimura, Tsutomu Ogata, Masayasu Arakawa, Kahou Yabuta, Takashi Matsushita, Kenji Kurita, Masayuki Terada, Koji Hayashi, Youhei Itoh, Yuki Ishizaki
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Patent number: 8088331Abstract: An acid liquid leakage sensor quickly detecting liquid leakage from a device, such as a battery or the like, containing an acid liquid includes a first conductive member, a second conductive member, and an electrically insulating material which establishes an electrically insulating state between these first and second conductive members. The electrically insulating material includes a macromolecular compound having a basic functional group, and an electrical insulation characteristic or high resistance characteristic that decreases upon reaction with an acid liquid. It is possible to detect leakage of acid liquid, such as battery fluid, by detecting the change of conductive state between the first conductive member and the second conductive member which accompanies a decrease of the electrical insulation characteristic or high resistance characteristic of the electrically insulating material, when acid liquid leaks out and drips down the electrically insulating material.Type: GrantFiled: February 26, 2004Date of Patent: January 3, 2012Assignees: Origin Electric Company, Limited, NTT Facilities, Inc.Inventors: Takeharu Ueda, Kunihisa Satoh, Keiichi Sato, Ichiro Kiyokawa, Tomonobu Tsujikawa, Toshio Matsushima
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Publication number: 20110195318Abstract: A lithium ion battery capable of maintaining for a long time fire resistance of a nonaqueous electrolytic solution at a time of battery abnormality to secure safety is provided. In the lithium ion battery, two kinds of organic solvent, EC and DEC, are used for mixed organic solvent which forms the nonaqueous electrolytic solution, and liquid flame retardant formed by phosphazene A having a boiling point closely to that of EC and phosphazene B having a boiling point closely to that of DEC is added to the electrolytic solution. At battery abnormality, when the battery temperature goes up due to internal short circuit of positive and negative electrodes caused by melting of separators to decompose each of EC and DEC, the phosphazene A and B, each having the boiling point closely to that of EC and DEC, decompose timely to function, thereby fire resistance of the electrolytic solution can be maintained for a long time to secure safety of the battery at the time of battery abnormality.Type: ApplicationFiled: March 3, 2010Publication date: August 11, 2011Inventors: Tomonobu Tsujikawa, Toshio Matsushima, Masahiro Ichimura, Tsutomu Ogata, Masayasu Arakawa, Kahou Yabuta, Takashi Matsushita, Youhei Itoh, Masayuki Terada, Koji Hayashi, Kenji Kurita, Yuki Ishizaki
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Publication number: 20110159329Abstract: A manganese non-aqueous electrolyte battery having safety at a time of battery abnormality and having a long life span is provided. A battery 20 has a cylindrical container 7 having a bottom. An electrode group 6 where a positive electrode plate that a spinel-related lithium manganese complex oxide is used as a positive electrode active material and a negative electrode plate that a carbon material is used as a negative electrode active material are wound via separators W5, is accommodated in the container 7. The electrode group 6 is infiltrated by an electrolytic solution in which LiBF4 is added as an electrolyte to organic solvent. Further, a phosphazene flame retardant is added at 10 wt % to the electrolytic solution. The electrolytic solution hardly catches fire at a time of battery abnormality and manganese elution can be prevented.Type: ApplicationFiled: March 3, 2010Publication date: June 30, 2011Inventors: Tomonobu Tsujikawa, Toshio Matsushima, Masahiro Ichimura, Tsutomu Ogata, Masayasu Arakawa, Kahou Yabuta, Takashi Matsushita, Koji Hayashi, Masayuki Terada, Youhei Itoh, Kenji Kurita, Yuki Ishizaki