Patents Assigned to Sanyo
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Publication number: 20230033345Abstract: A method of manufacturing an electrode plate for a battery of the present disclosure includes: a step (A) of forming a through hole (20) in a strip-shaped electrode plate (10); and a step (B) of cutting the strip-shaped electrode plate along a width direction. In the step (A), the through hole is formed at a position on a cutting line (21) which extends in the width direction of the strip-shaped electrode plate, in the step (B), cutting of the strip-shaped electrode plate is performed by multiple cutting blades (30A, 30B) disposed along the cutting line, and at least one cutting blade of the multiple cutting blades is disposed at the position of the through hole.Type: ApplicationFiled: October 11, 2022Publication date: February 2, 2023Applicant: SANYO Electric Co., Ltd.Inventor: Masahide Maruyama
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Publication number: 20230031407Abstract: A secondary battery that comprises an adhesive that is provided to at least one thickness-direction side surface of separators between the separators and first electrodes (negative electrodes). When the adhesive force between a separator and the outermost first electrode (negative electrode) is A0 and the adhesive force between a separator and the first electrode (negative electrode) tint is in the center of the laminate in the layering direction is A1 [N/m] A1/A0 is at least 0.1 but less than 0.9.Type: ApplicationFiled: December 15, 2020Publication date: February 2, 2023Applicant: SANYO Electric Co., Ltd.Inventors: Hideo Kusada, Takafumi Tsukagoshi
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Publication number: 20230036396Abstract: This secondary battery comprises an electrode body obtained by laminating positive electrodes and negative electrodes with a separator interposed therebetween. The separator includes a first layer and a second layer having lower thermal shrinkage than the first layer, and has a tubular section that is formed into a tube shape and constitutes the outermost surface of the electrode body. The separator is arranged such that, in the tubular section thereof, the first layer faces the inside and the second layer faces the outside.Type: ApplicationFiled: December 15, 2020Publication date: February 2, 2023Applicant: SANYO Electric Co., Ltd.Inventors: Takafumi Hosokawa, Taiki Nonaka
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Patent number: 11569524Abstract: Provided are a secondary battery and a battery pack including the secondary battery. A sealing plate has a positive electrode terminal attachment hole. A positive electrode terminal penetrates the positive electrode terminal attachment hole. An external conductive member is connected to a portion of the positive electrode terminal located on the battery outer side with respect to the sealing plate. The conduction path between a positive electrode plate and the positive electrode terminal is provided with a current interrupting mechanism. A first insulating member made of resin is disposed between the sealing plate and the positive electrode terminal. A second insulating member having higher thermal resistance than the first insulating member is disposed between the external conductive member and the sealing plate.Type: GrantFiled: April 21, 2021Date of Patent: January 31, 2023Assignee: SANYO Electric Co., Ltd.Inventors: Ryoichi Wakimoto, Yohei Muroya, Hiroyuki Yamada
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Patent number: 11569552Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.Type: GrantFiled: September 30, 2021Date of Patent: January 31, 2023Assignee: SANYO Electric Co., Ltd.Inventors: Kazuhiro Kitaoka, Masakazu Yamada, Yohei Muroya
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Publication number: 20230023072Abstract: Provided are a noodle cutting device and a noodle production device that are capable of reducing or preventing adhesion between noodles (52a, 52b), particularly thick noodles.Type: ApplicationFiled: December 23, 2019Publication date: January 26, 2023Applicant: SANYO FOODS CO., LTD.Inventor: Yoshiaki NAGAYAMA
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Publication number: 20230025345Abstract: A negative electrode comprises a negative electrode collector, a first negative electrode mixture layer, and a second negative electrode mixture layer the ratio of the void fraction (S2) among the graphite particles in the second negative electrode mixture layer to the void fraction (S1) among the graphite particles in the first negative electrode mixture layer, namely S2/S1 is from 1.1 to 2.0: and the ratio of the packing density (D2) of the second negative electrode mixture layer to the packing density (D1) of the first negative electrode mixture layer, namely D2/D1 is from 0.9 to 1.1. A separator has a first surface that is in contact with a positive electrode and a second surface that is in contact with the negative electrode; and the contact angle of the first surface with ethylene carbonate is smaller than the contact angle of the second surface with ethylene carbonate.Type: ApplicationFiled: December 9, 2020Publication date: January 26, 2023Applicant: SANYO Electric Co., Ltd.Inventors: Noriko Sugii, Taizou Sunano, Takuya Shinomiya, Mai Yokoi
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Publication number: 20230028128Abstract: A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure comprises a positive electrode, a negative electrode and a nonaqueous electrolyte solution; the negative electrode comprises a negative electrode collector and a negative electrode active material layer that is provided on the negative electrode collector; the negative electrode active material layer contains, as negative electrode active materials, graphite particles A and graphite particles B; the graphite particles A have an internal void fraction of 5% or less; the graphite particles B have an internal void fraction of from 8% to 20%; if the negative electrode active material layer is halved in the thickness direction, a region on the half closer to the outer surface contains more graphite particles A than a region on the half closer to the negative electrode collector.Type: ApplicationFiled: November 25, 2020Publication date: January 26, 2023Applicant: SANYO Electric Co., Ltd.Inventors: Yasuyuki Takai, Atsushi Kaiduka, Yuki Nakai
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Patent number: 11563255Abstract: A power supply device includes a plurality of rectangular battery cells stacked in the thickness direction, and a plurality of separators interposed between adjacent battery cells. The separator includes an insulating separator frame that forms a defined space surrounded in a frame shape, and a separator core that is inserted into the defined space surrounded by the separator frame and is disposed between the adjacent battery cells.Type: GrantFiled: November 15, 2018Date of Patent: January 24, 2023Assignee: SANYO Electric Co., Ltd.Inventor: Naotake Yoshida
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Publication number: 20230018700Abstract: An electronic circuit unit includes a trigger circuit and a circuit module. The trigger circuit includes a semiconductor switching element configured to output a switching pulse signal in response to an external trigger signal, a load resistor for the semiconductor switching element, a one-shot pulse circuit configured to convert the switching pulse signal into a one-shot pulse with a predetermined pulse width, and a forcible-reset circuit connected to an input side of the semiconductor switching element. The one-shot pulse circuit includes a coupling capacitor connected to an input side of the semiconductor switching element and a charging resistor for the coupling capacitor. The pulse width of the one-shot pulse is determined by a time constant of the coupling capacitor and the charging resistor. The forcible-reset circuit is configured to temporarily input an on-voltage to the semiconductor switching element so as to forcibly switch the circuit module to the operating mode.Type: ApplicationFiled: September 23, 2022Publication date: January 19, 2023Applicant: SANYO Electric Co., Ltd.Inventor: Osamu Ohashi
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Publication number: 20230018422Abstract: A negative electrode comprises a negative electrode collector, a first negative electrode mixture layer that is provided on the surface of the negative electrode collector, and a second negative electrode mixture layer that faces the positive electrode; the first negative electrode mixture layer and the second negative electrode mixture layer contain graphite particles; the ratio of the void fraction (S2) among the graphite particles in the second negative electrode mixture layer to the void fraction (S1) among the graphite particles in the first negative electrode mixture layer, namely S2/S1 is from 1.1 to 2.0; the ratio of the packing density (D2) of the second negative electrode mixture layer to the packing density (D1) of the first negative electrode mixture layer, namely D2/D1 is from 0.9 to 1.1; and the separator has a thickness of 10 ?m or less, while having a porosity of from 25% to 45%.Type: ApplicationFiled: December 4, 2020Publication date: January 19, 2023Applicant: SANYO Electric Co., Ltd.Inventors: Akihiro Katogi, Noriko Sugii, Takamitsu Tashita, Fumikazu Mizukoshi, Mai Yokoi
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Publication number: 20230016421Abstract: Provided is a cylindrical battery with which it is possible to suppress an increase in weight while increasing capacity. A cylindrical battery includes: an electrode body comprising a positive electrode and a negative electrode, which are wound together via a separator; an electrolyte; a bottomed cylindrical outer can for accommodating the electrode body and the electrolyte; and a sealing body that is fixed to an open end portion of the outer can by swaging and is for sealing the outer can. In regard to the outer can, the outer diameter of a body part for accommodating the electrode body is 20 mm or greater, and the outer diameter of the open end portion for accommodating the sealing body is less than the outer diameter of the body part.Type: ApplicationFiled: November 25, 2020Publication date: January 19, 2023Applicant: SANYO Electric Co., Ltd.Inventors: Takahiro Fukuoka, Shuichi Yamashita, Satoshi Yoshida, Kazuhiro Okuda
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Publication number: 20230014664Abstract: The present nonaqueous electrolyte secondary battery positive electrode comprises a positive electrode core, and a positive electrode composite material layer formed on the surface of the positive electrode core. The positive electrode composite material layer includes at least a positive electrode active material, and lithium phosphate. The positive electrode active material includes a first positive electrode active material wherein the Ni content relative to the total molar amount of metal elements other than Li is 50-65 mol%, and a second positive electrode active material wherein the Ni content relative to the total molar amount of metal elements other than Li is 45 mol% or less. The ratio of the first positive electrode active material to the second positive electrode active material in the positive electrode composite material layer is, by mass ratio, from 80:20 to 50:50.Type: ApplicationFiled: December 8, 2020Publication date: January 19, 2023Applicant: SANYO Electric Co., Ltd.Inventors: Takatoshi Higuchi, Yuu Takanashi
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Patent number: 11555227Abstract: Disclosed is a Ni—Cr-based brazing alloy including, on the basis of mass %: 15%<Cr<30%; 3%<P<12%; 0%?Si<8%; 0.01%<C<0.06%; 0%?Ti+Zr<0.1%; 0.01%<V<0.1%; 0%?Al<0.01%; 0.005%<O<0.025%; 0.001%<N<0.050%; 0%?Nb<0.1%; and the balance being Ni and incidental impurities. Inequality (1): 0.2?0.24V %/C %?1.0 is satisfied if the alloy contains no Nb, and Inequality (2): 0.2?(0.24V %+0.13Nb %)/C %?1.0 is satisfied if the alloy contains Nb. Also disclosed is an inexpensive Ni—Cr-based brazing alloy containing a trace amount of V for use in the production of stainless steel heat exchangers and other steel articles. The alloy has a low liquidus temperature and high corrosion resistance, and achieves high brazing strength.Type: GrantFiled: April 18, 2018Date of Patent: January 17, 2023Assignee: Sanyo Special Steel Co., Ltd.Inventors: Toshiyuki Sawada, Shingo Fukumoto
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Patent number: 11554687Abstract: Power supply system mounted in electric vehicle includes voltage measurement unit that measures a voltage of each of a plurality of cells to ensure both safety of an electric vehicle and convenience of a user. Current measurement unit therein measures a current flowing through the plurality of cells. Temperature measurement unit therein measures a temperature of the plurality of cells. Controller therein determines a current limit value defining an upper limit of a current for suppressing cell deterioration and ensuring safety based on the voltage, the current, and the temperature of each of the plurality of cells measured by voltage measurement unit, current measurement unit, and temperature measurement unit respectively, and that notifies a higher-level controller in electric vehicle of the determined current limit value.Type: GrantFiled: July 26, 2019Date of Patent: January 17, 2023Assignee: SANYO Electric Co., Ltd.Inventors: Hidetsugu Mukae, Masayuki Yoshinaga, Yoshitaka Sakiyama
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Patent number: 11557759Abstract: A nonaqueous electrolyte secondary battery using a silicon compound as a negative electrode active material, suppress deformation of a negative electrode. An embodiment includes a winding type electrode body in which a positive electrode and a negative electrode are spirally wound with at least one separator interposed therebetween. In a negative electrode mixture layer, a silicon compound is contained as a negative electrode active material. A winding-start side end of the negative electrode mixture layer extends to a winding-start end side of the electrode body past a winding-start side end of a positive electrode mixture layer. A length Y (mm) of a portion of the negative electrode mixture layer extending from the winding-start side end of the positive electrode mixture layer and a rate X (percent by mass) of the silicon compound with respect to the total mass of the negative electrode active material satisfy a relationship of Y?3X?15 (6?X?15).Type: GrantFiled: December 6, 2018Date of Patent: January 17, 2023Assignee: SANYO Electric Co., Ltd.Inventors: Mitsunori Miyanari, Syunsuke Natsumeda, Kei Kobayashi, Atsushi Mizawa
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Publication number: 20230011365Abstract: An insulating plate for a secondary battery includes a wound electrode group, an electrolyte, a cylindrical battery case that houses the electrode group and the electrolyte, and a sealing body that seals an opening of the battery case and includes a discharge valve. The insulating plate is disposed between the electrode group and the sealing body and has a disk shape with a thickness T of 0.1 mm or more. The insulating plate has a first hole formed centrally therein and at least one second hole formed around the first hole so as to extend along the outer periphery of the disk shape. The ratio (=T/D) of the thickness T to a diameter D of the insulating plate is 0.016 or less, and the insulating plate has an opening ratio of 36% or less.Type: ApplicationFiled: September 20, 2022Publication date: January 12, 2023Applicants: PANASONIC HOLDINGS CORPORATION, SANYO Electric Co., Ltd.Inventors: Takeshi Enomoto, Tomohiko Yokoyama, Yuji Yamagami, Kazutoshi Kohira
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Patent number: 11549018Abstract: A pigment composition contains: an azo pigment that is a reaction product between a coupler and a base; and a pigment derivative, and a content of o-anisidine derived from the coupler is less than or equal to 20 mg/kg in the entire pigment composition. A method for producing the pigment composition includes, after reaction between a coupler and a base to generate an azo pigment, or during the reaction between the coupler and the base, adding a remover for o-anisidine derived from the coupler.Type: GrantFiled: November 29, 2018Date of Patent: January 10, 2023Assignee: Sanyo Color Works, Ltd.Inventors: Junichiro Sato, Takeshi Nishikawa
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Patent number: 11552287Abstract: The positive electrode active material with lithium composite oxide A containing W and Ni and W-free lithium composite oxide B containing Ni. Regarding the lithium composite oxide A, the proportion of Ni relative to the total moles of metal elements except for lithium is 30 to 60 mol %, 50% particle size D50 is 2 to 6 ?m, 10% particle size D10 is 1.0 ?m or more, and 90% particle size D90 is 6.8 ?m or less. Regarding the lithium composite oxide B, the proportion of Ni relative to the total moles of metal elements except for lithium is 50 to 95 mol %, 50% particle size D50 is 10 to 22 ?m, 10% particle size D10 is 7.0 ?m or more, and 90% particle size D90 is 22.5 ?m or less. The mass ratio of the lithium composite oxide B to the lithium composite oxide A is 1:1 to 5.7:1.Type: GrantFiled: December 14, 2018Date of Patent: January 10, 2023Assignees: PANASONIC HOLDINGS CORPORATION, SANYO Electric Co., Ltd.Inventors: Hidekazu Hiratsuka, Takuo Yoneda
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Patent number: 11552374Abstract: The present disclosure provides a non-aqueous electrolyte secondary battery having a stable open-circuit voltage. An electrode for a non-aqueous electrolyte secondary battery according to one embodiment includes a belt-like current collector, a mixture layer formed on each surface of the current collector, and a lead bonded to an exposed portion of the current collector where the surfaces of the current collector are exposed, the lead extending from one end of the current collector, the one end and another end constituting both ends of the current collector in the width direction. In an electrode for a non-aqueous electrolyte secondary battery according to one embodiment, a mixture layer is formed on at least one surface of a current collector in the width direction of the current collector and adjacent to an exposed portion on one end side.Type: GrantFiled: October 13, 2017Date of Patent: January 10, 2023Assignee: SANYO Electric Co., Ltd.Inventors: Toshitaka Moriyama, Motoki Kinugawa, Tomofumi Yanagi