Patents by Inventor Masaki Deguchi
Masaki Deguchi 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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Patent number: 10263290Abstract: It is an object of the present invention to provide a nonaqueous electrolyte secondary battery in which swelling due to charge-discharge cycling is inhibited. The nonaqueous electrolyte secondary battery including a flat electrode assembly in which a first electrode plate and a second electrode plate having a different polarity from the first electrode plate are wound with a separator provided therebetween.Type: GrantFiled: July 14, 2015Date of Patent: April 16, 2019Assignee: SANYO Electric Co., Ltd.Inventors: Shunsuke Mitani, Satoshi Yamamoto, Yasunori Watanabe, Kentaro Takahashi, Masaki Deguchi, Yuta Ichikawa, Masaya Ugaji
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Patent number: 9882251Abstract: Disclosed is an electronic device including: a component that generates heat while operating; a first battery capable of being charged and discharged; a second battery that is capable of being charged and discharged, and has a higher heat resistance than the first battery; and a housing accommodating the component, and providing a first space for accommodating the first battery and a second space for accommodating the second battery. The first space and the second space are arranged such that the temperature of the second battery becomes higher than that of the first battery on average, while the component is operating.Type: GrantFiled: August 3, 2012Date of Patent: January 30, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masaya Ugaji, Masaki Deguchi
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Publication number: 20170170525Abstract: It is an object of the present invention to provide a nonaqueous electrolyte secondary battery in which swelling due to charge-discharge cycling is inhibited. The nonaqueous electrolyte secondary battery including a flat electrode assembly in which a first electrode plate and a second electrode plate having a different polarity from the first electrode plate are wound with a separator provided therebetween.Type: ApplicationFiled: July 14, 2015Publication date: June 15, 2017Applicant: SANYO Electric Co., Ltd.Inventors: Shunsuke Mitani, Satoshi Yamamoto, Yasunori Watanabe, Kentaro Takahashi, Masaki Deguchi, Yuta Ichikawa, Masaya Ugaji
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Patent number: 9627682Abstract: A negative electrode for nonaqueous electrolyte secondary batteries includes a negative electrode core member and a negative electrode mixture layer attached to the negative electrode core member, wherein the negative electrode mixture layer contains negative electrode active material particles with a graphite structure and a binder, the mixture density of the negative electrode mixture layer is 1.5 g/cm3 to 1.8 g/cm3, the ratio I(002)/I(110) of the diffraction intensity I(002) of the (002) plane to the diffraction intensity I(110) of the (110) plane satisfies 60?I(002)/I(110)?120 as determined by measuring the negative electrode mixture layer by an X-ray diffraction method, the amount of particles with a size of 1 ?m to 10 ?m in the particle size distribution of a crushed product of the negative electrode mixture layer is 12% to 25% by volume.Type: GrantFiled: December 24, 2013Date of Patent: April 18, 2017Assignee: SANYO Electric Co., Ltd.Inventors: Taiki Satow, Masaki Deguchi, Kentaro Takahashi, Masaya Ugaji
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Patent number: 9413013Abstract: Disclosed is a non-aqueous electrolyte secondary battery including a positive electrode including a lithium-containing transition metal composite oxide as a positive electrode active material, a negative electrode including a negative electrode active material, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The positive electrode contains lithium carbonate and lithium hydrogencarbonate in a total amount of 500 ppm or more and 3000 ppm or less, and exhibits a weight loss by temperature increase from 25° C. to 300° C. at 5° C./min of 70% or less of the total amount and of 1500 ppm or less. The non-aqueous electrolyte includes a non-aqueous solvent and a lithium salt. The non-aqueous solvent may contain a cyclic carbonate and a chain carbonate.Type: GrantFiled: October 26, 2011Date of Patent: August 9, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takaharu Morikawa, Yasushi Nakagiri, Masaki Deguchi
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Publication number: 20160043389Abstract: It is an object of the present invention to provide a nonaqueous electrolyte secondary battery which inhibits the oxidative decomposition of an electrolytic solution in a high-temperature environment and has markedly improved high-temperature storage characteristics and cycle characteristics. The nonaqueous electrolyte secondary battery of the present invention includes a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material, and a nonaqueous electrolyte, in which the positive electrode active material is a lithium transition metal complex oxide, at least one selected from rare-earth hydroxide and rare-earth oxyhydroxide is present on a surface of the positive electrode active material, and the nonaqueous electrolyte contains a fluoroarene.Type: ApplicationFiled: March 6, 2014Publication date: February 11, 2016Applicant: SANYO Electric Co., Ltd.Inventors: Masaki DEGUCHI, Kentaro TAKAHASHI, Masaya UGAJI
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Publication number: 20150318545Abstract: A negative electrode for nonaqueous electrolyte secondary batteries includes a negative electrode core member and a negative electrode mixture layer attached to the negative electrode core member, wherein the negative electrode mixture layer contains negative electrode active material particles with a graphite structure and a binder, the mixture density of the negative electrode mixture layer is 1.5 g/cm3 to 1.8 g/cm3, the ratio I(002)/I(110) of the diffraction intensity 1(002) of the (002) plane to the diffraction intensity I(110) of the (110) plane satisfies 60?I(002)/I(110)?120 as determined by measuring the negative electrode mixture layer by an X-ray diffraction method, the amount of particles with a size of 1 ?m to 10 ?m in the particle size distribution of a crushed product of the negative electrode mixture layer is 12% to 25% by volume.Type: ApplicationFiled: December 24, 2013Publication date: November 5, 2015Applicant: SANYO ELECTRIC CO., LTD.Inventors: Taiki Satow, Masaki Deguchi, Kentaro Takahashi, Masaya Ugaji
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Publication number: 20150024283Abstract: Provided is a non-aqueous electrolyte for secondary batteries which is capable of maintaining excellent discharge characteristics even at low temperatures. The non-aqueous electrolyte for secondary batteries includes a non-aqueous solvent, and a lithium salt dissolved in the non-aqueous solvent. The non-aqueous solvent includes a cyclic carbonate, a chain carbonate, a fluoroarene, and a carboxylic acid ester. The cyclic carbonate includes ethylene carbonate. The non-aqueous solvent has a cyclic carbonate content MCI of 4.7 to 90 mass %, an ethylene carbonate content MEC of 4.7 to 37 mass %, a chain carbonate content MCH of 8 to 80 mass %, a fluoroarene content MFA of 1 to 25 mass %, and a carboxylic acid ester content MCAE of 1 to 80 mass %.Type: ApplicationFiled: April 11, 2013Publication date: January 22, 2015Inventor: Masaki Deguchi
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Patent number: 8917612Abstract: An apparatus includes a first counter circuit that counts a value of first statistical information divided in the time-direction from a first period; a second counter circuit that counts a value of second statistical information divided in the time-direction from a second period following the first period; a control circuit that divides by a specific time period unit and acquires the value of the first statistical information and the value of the second statistical information, and causes a first memory to store the value of the first statistical information, and causes a second memory to store the value of the second statistical information; and a switching circuit that switches the value of the statistical information acquired by the control circuit from the value of the first statistical information to the value of the second statistical information upon a start of the second period.Type: GrantFiled: January 31, 2012Date of Patent: December 23, 2014Assignee: Fujitsu LimitedInventors: Jumpei Hongo, Syuichi Musou, Masaki Deguchi
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Publication number: 20140162112Abstract: Disclosed is an electronic device including: a component that generates heat while operating; a first battery capable of being charged and discharged; a second battery that is capable of being charged and discharged, and has a higher heat resistance than the first battery; and a housing accommodating the component, and providing a first space for accommodating the first battery and a second space for accommodating the second battery. The first space and the second space are arranged such that the temperature of the second battery becomes higher than that of the first battery on average, while the component is operating.Type: ApplicationFiled: August 3, 2012Publication date: June 12, 2014Applicant: PANASONIC CORPORATIONInventors: Masaya Ugaji, Masaki Deguchi
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Patent number: 8724457Abstract: A communication apparatus stores topology information that is shared by communication apparatuses included in a network and representing connection states between the communication apparatuses. The topology information includes port identification information for identifying ports that are connectable to each other within each communication apparatus. The communication apparatus determines a route by sequentially selecting a port that can be connected to a port, to which transmission data is input based on the port identification information.Type: GrantFiled: February 21, 2012Date of Patent: May 13, 2014Assignee: Fujitsu LimitedInventor: Masaki Deguchi
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Patent number: 8623558Abstract: A non-aqueous electrolyte in which the proportion of diethyl carbonate is reduced, and a nonaqueous electrolyte secondary battery using the same that has high safety are provided. The non-aqueous electrolyte of the invention for use in secondary batteries includes ethylene carbonate, propylene carbonate, diethyl carbonate, and an additive, as a non-aqueous solvent. The additive is at least one of a fluorinated aromatic compound having a molecular weight of 90 to 200 and a fatty acid alkyl ester having a molecular weight of 80 to 240. A weight ratio WEC ethylene carbonate, a weight ratio WPC of propylene carbonate, a weight ratio W DEC of diethyl carbonate, and a weight ratio WLV of the additive are 5 to 30 wt %, 15 to 60 wt %, 10 to 50 wt %, and 5 to 35 wt %, respectively, to the total of the non-aqueous electrolyte.Type: GrantFiled: March 15, 2011Date of Patent: January 7, 2014Assignee: Panasonic CorporationInventor: Masaki Deguchi
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Publication number: 20130330636Abstract: The present invention provides a non-aqueous electrolyte for secondary batteries, capable of suppressing gas generation in the secondary batteries during storage in a high-temperature environment or during charge/discharge cycles; and also provides a non-aqueous electrolyte secondary battery using the same. The non-aqueous electrolyte includes a non-aqueous solvent, a solute dissolved in the non-aqueous solvent, and an additive. The non-aqueous solvent includes ethylene carbonate and propylene carbonate. In the non-aqueous solvent, a content WEC of the ethylene carbonate is 5 to 20 mass % and a content WPC of the propylene carbonate is 40 to 60 mass %. The additive includes a sultone compound which includes a fluorine atom.Type: ApplicationFiled: March 26, 2012Publication date: December 12, 2013Applicant: PANASONIC CORPORATIONInventor: Masaki Deguchi
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Publication number: 20130302701Abstract: A non-aqueous electrolyte for secondary batteries comprising a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent, the non-aqueous solvent including ethylene carbonate, propylene carbonate, and a fluorinated aromatic compound having an alkynyl group, a content WEC of ethylene carbonate being 5 to 35 mass %, and a content WPC of propylene carbonate being 15 to 60 mass % in the non-aqueous solvent. The fluorinated aromatic compound having an alkynyl group may be an aromatic compound having 6 to 14 carbon atoms, 1 to 3 fluorine atoms, and an alkynyl group having 2 to 6 carbon atoms.Type: ApplicationFiled: February 15, 2012Publication date: November 14, 2013Applicant: PANASONIC CORPORATIONInventor: Masaki Deguchi
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Publication number: 20130288085Abstract: Disclosed is a non-aqueous electrolyte secondary battery including a positive electrode including a lithium-containing transition metal composite oxide as a positive electrode active material, a negative electrode including a negative electrode active material, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The positive electrode contains lithium carbonate and lithium hydrogencarbonate in a total amount of 500 ppm or more and 3000 ppm or less, and exhibits a weight loss by temperature increase from 25° C. to 300° C. at 5° C./min of 70% or less of the total amount and of 1500 ppm or less. The non-aqueous electrolyte includes a non-aqueous solvent and a lithium salt. The non-aqueous solvent may contain a cyclic carbonate and a chain carbonate.Type: ApplicationFiled: October 26, 2011Publication date: October 31, 2013Applicant: PANASONIC CORPORATIONInventors: Takaharu Morikawa, Yasushi Nakagiri, Masaki Deguchi
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Patent number: 8470475Abstract: A non-aqueous electrolyte secondary battery includes: a positive electrode capable of absorbing and desorbing lithium; a negative electrode capable of absorbing and desorbing lithium; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode includes a composite oxide represented by formula (1): LiNixM1-x-yLyO2 as an active material. The formula (1) satisfies 0.3?x?0.9 and 0?y?0.1. The element M is at least one selected from the group consisting of Co and Mn, and the element L is at least one selected from the group consisting of Mg, Al, Ti, Sr, Zn, B, Ca, Cr, Si, Ga, Sn, P, V, Sb, Nb, Ta, Mo, W, Zr, Y and Fe. The non-aqueous electrolyte includes a main solvent, a solute and vinyl ethylene carbonate.Type: GrantFiled: November 28, 2005Date of Patent: June 25, 2013Assignee: Panasonic CorporationInventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshizawa
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Patent number: 8399127Abstract: A nonaqueous electrolyte secondary battery, comprising a positive electrode having a positive-electrode active material layer reversibly inserting and extracting lithium ions on a positive-electrode current collector, a negative electrode having a negative-electrode active material layer reversibly inserting and extracting lithium ions on a negative-electrode current collector, and a nonaqueous electrolyte solution, wherein at least one of the positive and negative electrodes has a film on the surface and at least one of the positive electrode, the negative electrode and the nonaqueous electrolyte solution contains a nitrogen-containing cyclic compound. Such a nonaqueous electrolyte secondary battery is superior in high-temperature storage stability allowing preservation of favorable discharge rate even after high-temperature storage.Type: GrantFiled: February 20, 2008Date of Patent: March 19, 2013Assignee: Panasonic CorporationInventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshizawa
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Publication number: 20130017455Abstract: Disclosed is a non-aqueous electrolyte including a non-aqueous solvent, and a solute dissolved in the non-aqueous solvent. The non-aqueous solvent contains ethylene carbonate (EC), propylene carbonate (PC), diethyl carbonate (DEC), and an additive. The weight percentage WEC of EC the total weight of EC, PC, and DEC is more than 20 wt % and equal to or less than 35 wt %; the weight percentage WPC of PC is 20 to 40 wt %; and the weight percentage WDEC of DEC is 30 to 50 wt %. The additive contains a cyclic carbonate having a C?C unsaturated bond, and a sultone compound. The ratio WC/WSL of a weight percentage WC of the cyclic carbonate having a C?C unsaturated bond contained in the non-aqueous electrolyte, to a weight percentage WSL of the sultone compound contained in the non-aqueous electrolyte is 1 to 6.Type: ApplicationFiled: March 10, 2011Publication date: January 17, 2013Applicant: PANASONIC CORPORATIONInventors: Masaki Deguchi, Shinji Kasamatsu
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Publication number: 20120257538Abstract: A communication apparatus stores topology information that is shared by communication apparatuses included in a network and representing connection states between the communication apparatuses. The topology information includes port identification information for identifying ports that are connectable to each other within each communication apparatus. The communication apparatus determines a route by sequentially selecting a port that can be connected to a port, to which transmission data is input based on the port identification information.Type: ApplicationFiled: February 21, 2012Publication date: October 11, 2012Applicant: FUJITSU LIMITEDInventor: Masaki DEGUCHI
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Publication number: 20120236743Abstract: A transmitting device includes a counter circuit that counts a counter circuit that counts a value of statistical information of a communication path for certain time periods; a memory; and a control circuit that acquires the value of the statistical information from the counter circuit and causes the memory to store the value of the statistical information when the value of the statistical information acquired by the counter circuit reaches a threshold.Type: ApplicationFiled: March 1, 2012Publication date: September 20, 2012Applicant: FUJITSU LIMITEDInventors: Syuichi MUSOU, Jumpei Hongo, Masaki Deguchi