Patents by Inventor Motonari Kifune
Motonari Kifune 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: 20240097141Abstract: The present disclosure provides an electrode for a secondary battery capable of measuring the width of a first mixture layer and the width of a second mixture layer when the first mixture layer and the second mixture layer are stacked and formed on the surface of a metal foil. A positive electrode body (electrode for a secondary battery) includes a strip-like positive electrode foil and a positive electrode mixture layer provided on the positive electrode foil. The positive electrode mixture layer includes a first positive electrode mixture layer provided on the positive electrode foil and a second positive electrode mixture layer provided on the first positive electrode mixture layer. The first positive electrode mixture layer has a width greater than a width of the second positive electrode mixture layer.Type: ApplicationFiled: November 24, 2020Publication date: March 21, 2024Applicant: Vehicle Energy Japan Inc.Inventor: Motonari KIFUNE
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Patent number: 11296352Abstract: An object of the present invention is to obtain a secondary battery that allows grasping a position of a mixture layer on an electrode and facilitates adjustment of positions of a positive electrode and a negative electrode. A secondary battery (100) of the present invention includes a negative electrode (32) that includes a strip-shaped copper foil (45) having both surfaces, negative electrode mixture layers (32a) on both the surfaces, a negative electrode foil exposed portion (32b), and insulating layers (31). The negative electrode foil exposed portion (32b) where the copper foil (45) is exposed is formed in an end portion on one side in a width direction of the copper foil (45). The insulating layers (31) are disposed on the negative electrode mixture layers (32a) and on the negative electrode foil exposed portion (32b).Type: GrantFiled: March 16, 2018Date of Patent: April 5, 2022Assignee: VEHICLE ENERGY JAPAN INC.Inventors: Motonari Kifune, Tetsuya Horinohchi, Kazuhide Uemura, Mutsumi Tsujide
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Patent number: 11223038Abstract: An object of the present invention is to provide a method for manufacturing a secondary battery with enhanced insulating reliability without degrading the performance of an active material mixture layer formed on an electrode. The present invention provides a method for manufacturing a prismatic secondary battery (100) including a negative electrode (41) having a negative electrode current-collecting foil (411), a negative electrode mixture layer (412) formed thereon, and an insulating layer (413) formed on the negative electrode mixture layer (412). The method of the present invention includes a step of forming the negative electrode mixture layer (412) and the insulating layer (413) by concurrently applying an active material mixture slurry and an insulating layer dispersion liquid to the negative electrode current-collecting foil (411). Each ceramic particle (413a) has a plate shape with an aspect ratio greater than or equal to 2.0 and less than or equal to 5.0.Type: GrantFiled: March 8, 2018Date of Patent: January 11, 2022Assignee: VEHICLE ENERGY JAPAN INC.Inventors: Hiroyuki Toshiro, Motonari Kifune, Yasuo Arishima
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Patent number: 11189861Abstract: Disclosed is a secondary battery obtained by rolling a cathode 31 and an anode 32 by interposing separators 33 and 34. The cathode 31 and the anode 32 have metal foils 31a and 32a, mixture layers 31b and 32b formed on the metal foils 31a and 32a, and foil exposure portion 31c and 32c that expose the metal foils 31a and 32a and are provided in one side in the width direction, respectively. The cathode 31 or the anode 32 has an insulation layer 35 that covers the mixture layers 31b and 32b, and a tip of a taper portion 32t of the mixture layer 32b, where the taper portion 32t is adjacent to the foil exposure portions 31c and 32c and has a thickness gradually reduced toward the foil exposure portions 31c and 32c, is exposed from the insulation layer 35.Type: GrantFiled: January 18, 2017Date of Patent: November 30, 2021Assignee: VEHICLE ENERGY JAPAN INC.Inventor: Motonari Kifune
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Publication number: 20210194043Abstract: It is an object to provide a lithium ion secondary battery that ensures a replaceability of an electrolyte in a proximity of an active material and is excellent in output and responsiveness. The lithium ion secondary battery includes an electrode that includes a negative electrode foil, a negative electrode mixture layer disposed on a surface of the negative electrode foil, and an insulating layer disposed on a surface of the negative electrode mixture layer. The insulating layer contains ceramic particles. On the surface of the negative electrode mixture layer facing a border between the insulating layer and the negative electrode mixture layer, a plurality of holes (puddles) having diameters of 2.5 ?m or more are provided.Type: ApplicationFiled: February 25, 2019Publication date: June 24, 2021Applicant: VEHICLE ENERGY JAPAN INC.Inventor: Motonari KIFUNE
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Publication number: 20200220157Abstract: An object of the present invention is to provide a method for manufacturing a secondary battery with enhanced insulating reliability without degrading the performance of an active material mixture layer formed on an electrode. The present invention provides a method for manufacturing a prismatic secondary battery (100) including a negative electrode (41) having a negative electrode current-collecting foil (411), a negative electrode mixture layer (412) formed thereon, and an insulating layer (413) formed on the negative electrode mixture layer (412). The method of the present invention includes a step of forming the negative electrode mixture layer (412) and the insulating layer (413) by concurrently applying an active material mixture slurry and an insulating layer dispersion liquid to the negative electrode current-collecting foil (411). Each ceramic particle (413a) has a plate shape with an aspect ratio greater than or equal to 2.0 and less than or equal to 5.0.Type: ApplicationFiled: March 8, 2018Publication date: July 9, 2020Applicant: VEHICLE ENERGY JAPAN INC.Inventors: Hiroyuki TOSHIRO, Motonari KIFUNE, Yasuo ARISHIMA
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Publication number: 20200144657Abstract: An object of the present invention is to obtain a secondary battery that allows grasping a position of a mixture layer on an electrode and facilitates adjustment of positions of a positive electrode and a negative electrode. A secondary battery (100) of the present invention includes a negative electrode (32) that includes a strip-shaped copper foil (45) having both surfaces, negative electrode mixture layers (32a) on both the surfaces, a negative electrode foil exposed portion (32b), and insulating layers (31). The negative electrode foil exposed portion (32b) where the copper foil (45) is exposed is formed in an end portion on one side in a width direction of the copper foil (45). The insulating layers (31) are disposed on the negative electrode mixture layers (32a) and on the negative electrode foil exposed portion (32b).Type: ApplicationFiled: March 16, 2018Publication date: May 7, 2020Applicant: VEHICLE ENERGY JAPAN INC.Inventors: Motonari KIFUNE, Tetsuya HORINOHCHI, Kazuhide UEMURA, Mutsumi TSUJIDE
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Publication number: 20190221852Abstract: When a short circuit occurs in a lithium-ion secondary battery, a short circuit current is reduced to suppress temperature rise of the battery. In order to solve the above problem, a lithium-ion battery of the present invention includes an electrode having a mixture layer and a heat resistant layer disposed on the mixture layer and containing ceramic particles. The heat resistant layer includes a crosslinked resin, and the amount of the crosslinked resin is less than 10% by weight with respect to the sum of the amount of the ceramic particles and the amount of the crosslinked resin.Type: ApplicationFiled: August 4, 2017Publication date: July 18, 2019Inventors: Katsunori NISHIMURA, Shuichi SUZUKI, Osamu KUBOTA, Kunio FUKUCHI, Motonari KIFUNE, Takuro TSUNAKI
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Publication number: 20180351211Abstract: Disclosed is a secondary battery obtained by rolling a cathode 31 and an anode 32 by interposing separators 33 and 34. The cathode 31 and the anode 32 have metal foils 31a and 32a, mixture layers 31b and 32b formed on the metal foils 31a and 32a, and foil exposure portion 31c and 32c that expose the metal foils 31a and 32a and are provided in one side in the width direction, respectively. The cathode 31 or the anode 32 has an insulation layer 35 that covers the mixture layers 31b and 32b, and a tip of a taper portion 32t of the mixture layer 32b, where the taper portion 32t is adjacent to the foil exposure portions 31c and 32c and has a thickness gradually reduced toward the foil exposure portions 31c and 32c, is exposed from the insulation layer 35.Type: ApplicationFiled: January 18, 2017Publication date: December 6, 2018Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventor: Motonari KIFUNE
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Publication number: 20150034862Abstract: To obtain a process for producing a positive electrode mix capable of producing, in a short time, a positive electrode mix in a stable slurry state containing a high nickel lithium composite oxide with less variation of viscosity change with time. A lithium composite oxide at high nickel content is kneaded with at least one of a conduction aid and a binder resin in a gaseous carbon dioxide atmosphere in a kneading step. Thus, a treatment of oxidizing lithium hydroxide in the lithium composite oxide is proceeded efficiently and a positive electrode mix in a stable slurry state with less variation of viscosity change with time is produced in a short time.Type: ApplicationFiled: January 11, 2013Publication date: February 5, 2015Applicant: Hitachi Automotive Systems, Ltd.Inventor: Motonari Kifune
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Patent number: 8231422Abstract: A plasma display panel includes a substrate, a plurality of metal electrodes, and a dielectric layer. The plurality of metal electrodes are formed on the substrate in a predetermined direction. The dielectric layer is formed on the metal electrodes by firing a glass material. The metal electrodes are formed with a film thickness of 6 ?m or less. The dielectric layer is formed with a film thickness of 25 ?m or less.Type: GrantFiled: March 6, 2007Date of Patent: July 31, 2012Assignee: Hitachi, Ltd.Inventors: Motonari Kifune, Masashi Nishiki, Akira Shimoyoshi
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Publication number: 20090155457Abstract: A die coater of the present invention includes: a replaceable-type paste container containing a paste inside thereof and including, in its upper surface, a paste ejection port for ejecting the paste; a buffer tank for storing the paste ejected from the paste ejection port; and a coat-layer formation portion for discharging the paste ejected from the buffer tank onto a substrate through a head to form a coat layer, wherein the paste container is placed such that the upper surface thereof is oriented more downwardly than a vertical plane, in order to cause the paste to be ejected from the paste ejection port due to its weight.Type: ApplicationFiled: August 22, 2008Publication date: June 18, 2009Inventors: Daisuke IKEDA, Akira Shimoyoshi, Motonari Kifune, Hideaki Hirabara
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Method for manufacturing a substrate for a flat panel display including forming grooves in a surface
Patent number: 7473151Abstract: A method of manufacturing a substrate for a flat panel display includes forming grooves in a bottom surface of a float glass substrate by a subtractive process to form barrier ribs. The barrier ribs include the protrusions remaining between the respective grooves.Type: GrantFiled: May 15, 2003Date of Patent: January 6, 2009Assignee: Hitachi, Ltd.Inventors: Osamu Toyoda, Motonari Kifune, Mituji Yamamoto, Kazunori Inoue -
Publication number: 20080096362Abstract: A plasma display panel includes a sealing member that encloses a gas filled space, a first substrate and a second substrate that sandwich the gas filled space and the sealing member, a first insulator layer that is sandwiched between the first substrate and the sealing member, and a second insulator layer that is sandwiched between the second substrate and the sealing member. Materials and thicknesses of the first insulator layer and the second insulator layer are selected so that etching time of the two insulator layers until etching depth reaches the thicknesses of the insulator layers are the same time period under conditions that one side of each of the insulator layers in the thickness direction is exposed to etchant and that the same etching method is used for the insulator layers.Type: ApplicationFiled: April 4, 2007Publication date: April 24, 2008Applicant: FUJITSU HITACHI PLASMA DISPLAY LIMITEDInventors: Hideaki Hirabara, Akira Shimoyoshi, Motonari Kifune
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Publication number: 20070262716Abstract: A plasma display panel includes a substrate, a plurality of metal electrodes, and a dielectric layer. The plurality of metal electrodes are formed on the substrate in a predetermined direction. The dielectric layer is formed on the metal electrodes by firing a glass material. The metal electrodes are formed with a film thickness of 6 ?m or less. The dielectric layer is formed with a film thickness of 25 ?m or less.Type: ApplicationFiled: March 6, 2007Publication date: November 15, 2007Applicant: Fujitsu Hitachi Plasma Display LimitedInventors: Motonari Kifune, Masashi Nishiki, Akira Shimoyoshi
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Patent number: 7192334Abstract: A method for making a light-emitting display device having a substrate with light-emitting layers on a surface of the substrate and constituting pixels, light emission from the pixels being electrically controlled, and having barriers delimiting at least one side of each respective pixel. A mask pattern is formed on a surface of the substrate, corresponding to the pattern of the barriers to be formed, and the surface is sprayed with sandblasting particles to form grooves having a depth corresponding to a height of the barriers and irregularities producing light scattering on the side walls and bottoms of the grooves, a difference between a maximum height and a minimum height of the irregularities being at least 0.4 mm.Type: GrantFiled: September 16, 2005Date of Patent: March 20, 2007Assignee: Fuji Photo Film Co., Ltf.Inventors: Yasunobu Hashimoto, Yoshiho Seo, Naoki Itokawa, Motonari Kifune, Yasushi Ohkawa
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Patent number: 7118441Abstract: A method for manufacturing a PDP includes the steps of carrying a PDP under manufacture into an apparatus having a plurality of firing zones, and performing a firing step and/or a drying step under circulating hot air supplied in the respective firing zones. Organic components generated in the firing step and/or the drying step are oxidatively decomposed in a path for circulating the hot air.Type: GrantFiled: August 10, 2004Date of Patent: October 10, 2006Assignee: Fujitsu Hitachi Plasma Display LimitedInventors: Motonari Kifune, Hideki Okano
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Publication number: 20060009133Abstract: A method for making a light-emitting display device having a substrate with light-emitting layers on a surface of the substrate and constituting pixels, light emission from the pixels being electrically controlled, and having barriers delimiting at least one side of each respective pixel. A mask pattern is formed on a surface of the substrate, corresponding to the pattern of the barriers to be formed, and the surface is sprayed with sandblasting particles to form grooves having a depth corresponding to a height of the barriers and irregularities producing light scattering on the side walls and bottoms of the grooves, a difference between a maximum height and a minimum height of the irregularities being at least 0.4 mm.Type: ApplicationFiled: September 16, 2005Publication date: January 12, 2006Applicant: FUJITSU LTDInventors: Yasunobu Hashimoto, Yoshiho Seo, Naoki Itokawa, Motonari Kifune, Yasushi Ohkawa
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Patent number: 6954031Abstract: A light-emitting display device includes a substrate and light-emitting layers constituting pixels on a surface of the substrate in which light emission is electrically controlled for every pixel. The light-emitting display device further includes barriers delimiting at least one side of each pixel. On the surface of the substrate, at least part of a region that corresponds to each pixel has irregularities for light scattering. The difference between the maximum height and the minimum height of the irregularities is at least 0.4 ?m. The barriers and the irregularities are formed by sandblasting the surface of the substrate. The irregularities reduce attenuation of light by total reflection in the interior of the substrate and improve brightness of the device.Type: GrantFiled: June 27, 2003Date of Patent: October 11, 2005Assignee: Fujitsu LimitedInventors: Yasunobu Hashimoto, Yoshiho Seo, Naoki Itokawa, Motonari Kifune, Yasushi Ohkawa
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Patent number: 6870314Abstract: A panel assembly for a PDP having ribs of partitioning a discharge space on a substrate includes grooves each formed between adjacent ribs. Each of the grooves has deeper groove regions to be luminous areas and shallower groove regions to be non-luminous areas. Black material layers are formed on the shallower groove regions.Type: GrantFiled: January 31, 2003Date of Patent: March 22, 2005Assignee: Fujitsu LimitedInventors: Motonari Kifune, Osamu Toyoda