Patents by Inventor Kenji Arai
Kenji Arai 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: 20250001965Abstract: [Problem to be solved] To provide a vehicle seat comprising an airbag and an inflator for discharging gas for airbag inflation, that enables a more stable behavior of an airbag module during airbag deployment. [Solution] A vehicle seat comprises an outer frame 19 of a seatback frame for forming a framework of a seatback, a frame bracket 34 coupled to one side of the outer frame, a module bracket 36 fastened to the frame bracket at fastening points P1, P2 and configured to support an airbag module 23, and a pan frame 20 coupled to the rear side of the outer frame. The pan frame includes a protrusion section 32 protruding from an upper portion of the pan frame on the one side such that the fastening points are located below the protrusion section, and at least part of the airbag module is positioned frontward of the protrusion section.Type: ApplicationFiled: November 10, 2022Publication date: January 2, 2025Inventors: Keita WAKESU, Toru AMINO, Katsuya ISOMURA, Kenji MATSUOKA, Kenta EBARA, Eiichi KISHIMOTO, Masaaki YAMAGUCHI, Yasuhiro TSUJI, Kohei FUKUOKA, Hikaru ARAI
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Publication number: 20250002630Abstract: A copolymer contains a (meth)acrylic based monomer unit A having an anionic group, a (meth)acrylic based monomer unit B having a cationic group, and a (meth)acrylic based monomer unit C other than the (meth)acrylic based monomer unit A and the (meth)acrylic based monomer unit B, and the (meth)acrylic based monomer unit C has a weight average molecular weight of 2,000 to 9,000. The surfactant contains the copolymer. The resin composition contains a resin, the surfactant, and an inorganic filler. The heat dissipation sheet contains the resin composition. The present invention can provide a copolymer that is capable of reducing the viscosity of a resin composition containing a resin and an inorganic filler, a surfactant containing the copolymer, a resin composition containing the surfactant and an inorganic filler, and a heat dissipation sheet containing the resin composition.Type: ApplicationFiled: November 10, 2022Publication date: January 2, 2025Applicant: DENKA COMPANY LIMITEDInventors: Kosuke WADA, Tomoyuki KANAI, Kenji FUKAO, Tatsumi ARAI, Masao ONOZUKA, Takayuki IWASAKI
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Publication number: 20240413324Abstract: A lithium ion battery having excellent discharge characteristics even at a temperature below freezing is provided. The lithium ion battery includes a positive electrode containing a positive electrode active material, an electrolyte solution, and a negative electrode containing a negative electrode active material that is a carbon material; the carbon material has peaks at 2? of greater than or equal to 20° and less than or equal to 24°, 2? of greater than or equal to 42° and less than or equal to 46.5°, and 2? of greater than or equal to 78° and less than or equal to 82° in X-ray diffraction (XRD) analysis; and a value of the discharge capacity obtained by subjecting the lithium ion battery to constant current and constant voltage charging (0.1 C, 4.5 V, and a termination current of 0.01 C) at 25° C. and then discharging at ?40° C. is higher than or equal to 40% of a value of the discharge capacity in discharging at 25° C.Type: ApplicationFiled: October 14, 2022Publication date: December 12, 2024Inventors: Seiya SAITO, Tetsuya KAKEHATA, Kazutaka KURIKI, Taisuke NAKAO, Kenji ARAI
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Patent number: 12160217Abstract: A high frequency filter includes: a multilayer substrate including a first substrate for which lands are provided, a second substrate for which lands are provided, and a third substrate for which lands are provided, the third substrate being sandwiched between the first substrate and the second substrate; a columnar conductor electrically connected to the lands in the multilayer substrate; and columnar conductors provided to surround the columnar conductor, electrically connected to a ground plane of the first substrate, and electrically connected to a ground plane of the second substrate. The spacing between the lands of the first substrate and the lands of the third substrate and the spacing between the lands of the second substrate and the lands of the third substrate are electrical lengths of 90 degrees or less at the cutoff frequency.Type: GrantFiled: August 3, 2022Date of Patent: December 3, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Motomi Watanabe, Yukihiro Homma, Tomohiro Takahashi, Shinji Arai, Kenji Harauchi, Hidenori Yukawa
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Publication number: 20240396242Abstract: A terminal material having a plating film which can be used as a terminal for electric connection and a contact for a connector, including a base material made of copper or copper alloy and a plating film formed on the base material; the plating film has a tin layer made of tin or tin alloy; a surface-part KAM value measured by analyzing a cross section of a surface part by the EBSD method in a range of depth 1 ?m in a thickness direction of the base material from an interface between the base material and the plating film is 0.15° or more and less than 90°; and a center-part KAM value in a center part of a plate thickness of the base material is 0.1 times or more and 0.6 times or less of the surface-part KAM value.Type: ApplicationFiled: August 31, 2022Publication date: November 28, 2024Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Kenji Kubota, Isao Arai, Naoki Miyashima, Seiichi Ishikawa
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Publication number: 20240389370Abstract: A photoelectric conversion device includes a photoelectric conversion layer, and an electron transport layer. The electron transport layer includes metal oxide particles. In response to performing an X-ray photoelectron spectroscopy (XPS) analysis on the electron transport layer, two peaks representing Is orbitals of oxygen atoms are detected. A formula Y/(X+Y)?0.5 is satisfied, where a peak area of a peak on a low-energy side among the two peaks is X and a peak area of a peak on a high-energy side among the two peaks is Y.Type: ApplicationFiled: September 26, 2022Publication date: November 21, 2024Inventors: Ryota ARAI, Takaya ITO, Tomoya HIRANO, Kenji KOMITO
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Patent number: 12145879Abstract: The present invention relates to a chemically strengthened glass sheet in which a value of SB/(SA×t) is 5.0 mm?1 or more, where SA (MPa·?m) is an integrated value of a compressive stress from a surface of the glass sheet to a depth of 10 ?m, SB (MPa·?m) is an integrated value of a compressive stress from the depth of 10 ?m to DOL which is a depth at which the compressive stress is zero, and t (mm) is a thickness of the glass sheet.Type: GrantFiled: June 4, 2021Date of Patent: November 19, 2024Assignee: AGC Inc.Inventors: Takumi Umada, Kenji Imakita, Yusuke Arai, Qing Li
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Publication number: 20240331846Abstract: A heart rate information concealed video transmission device includes a transmitter and a receiver. The transmitter compresses an input video and transmits the compressed video to a network, and the receiver decodes a received compressed stream, and attempts heart rate estimation by rPPG and generation of a biometric identifier. In order to invalidate heart rate estimation by a biological information processor, a corrected video generator outputs a corrected video in which small temporal variation of the input video is suppressed.Type: ApplicationFiled: March 7, 2024Publication date: October 3, 2024Inventors: Jiro KATTO, Mayu ARAI, Kenji KANAI, Yutaka KATSUYAMA, Toshio SATO, Takuro SATO
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Patent number: 12105160Abstract: An object of the present invention is to provide a magneto-optical material capable of exhibiting the Faraday effect even though no magnetic field is applied. The magneto-optical material of the present invention has a nanogranular structure in which magnetic nanoparticles are dispersed in a fluoride matrix, and can exhibit Faraday properties without requiring the application of a magnetic field because the magnetic nanoparticles are configured by a magnetic material that has residual magnetization and consists of any of a Fe—Pt alloy, a Co—Pt alloy, a Fe—Co—Ni—Al alloy, a Co ferrite, or a Ba ferrite.Type: GrantFiled: July 7, 2022Date of Patent: October 1, 2024Assignee: Research Institute For Electromagnetic MaterialsInventors: Nobukiyo Kobayashi, Tadayoshi Iwasa, Kenji Ikeda, KenIchi Arai
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Publication number: 20240304834Abstract: A fuel cell stack including an outside unit disposed outside a cell stacked body and a communicating tube disposed in an exhaust gas flow path to communicate with an upstream and downstream sides of the exhaust gas flow path through a first and second opening. A first and second support portions supporting a first and second end portions on a first and second end sides of the communicating tube are formed in tubular shapes so as to surround the first and second end portions and communicate an internal space of the communicating tube with the exhaust gas flow path. The first and second support portions include tapered portions so that edge portions on outer peripheral surface sides of the first and second end surfaces are capable of abutting on peripheral surfaces of through-holes over a half circumference or longer in a circumferential direction, respectively.Type: ApplicationFiled: February 26, 2024Publication date: September 12, 2024Inventors: Kenji Nagumo, Naoki Tanaka, Kensuke Umezawa, Fumiya Arai
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Publication number: 20240304847Abstract: A fuel cell stack including a cell stacked body formed by stacking power generation cells in a predetermined direction, an exhaust gas flow path penetrating the cell stacked body in the predetermined direction so as to discharge a reaction gas supplied to the plurality of power generation cells, and a flow path forming portion forming a drainage flow path so that water flows from an upstream side to a downstream side of the exhaust gas flow path. The flow path forming portion includes a communicating tube disposed in the exhaust gas flow path so as to communicate with the upstream side and the downstream side of the exhaust gas flow path respectively through a first opening and a second opening of the communicating tube, and the flow path forming portion further includes a diaphragm portion at an inlet of the drainage flow path.Type: ApplicationFiled: February 26, 2024Publication date: September 12, 2024Inventors: Kenji Nagumo, Naoki Tanaka, Kensuke Umezawa, Fumiya Arai
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Publication number: 20240304833Abstract: A fuel cell stack including a cell stacked body, an exhaust gas flow path penetrating the cell stacked body in a predetermined direction so as to discharge a reaction gas supplied to a plurality of power generation cells, and a communicating tube disposed in the exhaust gas flow path so as to communicate with an upstream side and a downstream side of the exhaust gas flow path respectively through a first opening and a second opening of the communicating tube. The exhaust gas flow path includes a reduced diameter portion configured to gradually decrease a flow path area toward an outlet of the exhaust gas flow path, and the second opening communicates with the exhaust gas flow paths between an end on a small diameter side of the reduced diameter portion and the outlet of the exhaust gas flow path.Type: ApplicationFiled: February 26, 2024Publication date: September 12, 2024Inventors: Kenji Nagumo, Naoki Tanaka, Kensuke Umezawa, Fumiya Arai
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Publication number: 20240250334Abstract: Provided are a thermal runaway suppression sheet with maximum thickness of 3 mm or less and capable of insulating to temperature at which a propagation of thermal runaway in a lithium ion battery can be suppressed, and a battery pack and a battery module. The thermal runaway suppression sheet includes a thermal energy consumption layer containing a silica-based inorganic fiber having a hydroxyl group, and a thermal diffusion layer having a thermal conductivity in the planar direction that is 10 to 200 times as high as the thermal conductivity in the thickness direction. The thermal runaway suppression sheet has a thickness of 3 mm or less. When the thermal runaway suppression sheet is locally heated, the thermal energy consumption effect based on the silica-based inorganic fibers contained in the thermal energy consumption layer can be efficiently utilized by the thermal conduction along the planar direction of the thermal diffusion layer.Type: ApplicationFiled: March 1, 2024Publication date: July 25, 2024Applicant: IMAE INDUSTRY CO., LTD.Inventors: Kenji IMAE, Yoshihiko IMAE, Takashi SHIRAI, Tetsuro ARAI
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Patent number: 12047436Abstract: A setting apparatus for setting a communication apparatus, the setting apparatus includes a memory and a processor configured to acquire auxiliary information from a management apparatus configured to execute processing for accessing a cloud, and transmit setting information including the auxiliary information to the communication apparatus. The auxiliary information is set to an IoT edge execution environment established in the communication apparatus.Type: GrantFiled: February 7, 2022Date of Patent: July 23, 2024Assignee: NTT COMMUNICATIONS CORPORATIONInventors: Wenyu Shen, Takeo Saga, Kenji Arai, Ryu Kanishima
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Patent number: 11953084Abstract: A drive device protection structure has a rotary electric machine, a gearbox connected the rotary electric machine, an undercover disposed underneath the drive device and a protecting plate provided to the undercover. The rotary electric machine has a rotary electric machine housing that has a rotary electric machine flange. The gearbox has a gearbox housing that has a gearbox flange. The rotary electric machine flange and the gearbox flange are connected together. The rotary electric machine flange and the gearbox flange are formed such that a lower surface of the gearbox flange is positioned lower than a lower surface of the rotary electric machine flange. The protecting plate is formed of a material more rigid than a material of the undercover. The protecting plate is provided beneath connecting part between the rotary electric machine flange and the gearbox flange so as to face the connecting part.Type: GrantFiled: June 9, 2020Date of Patent: April 9, 2024Assignee: Nissan Motor Co., Ltd.Inventors: Jaehak Lee, Yuta Katsushima, Kenji Arai, Daisuke Asakura, Harunobu Abe, Kohei Yamada, Norihisa Tsujimura, Yasuaki Nakamura, Toshimitsu Kakizaki, Kazuhiro Maguchi, Kentarou Kurata
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Patent number: 11934901Abstract: A tag indicating an attribute of the tag by an electromagnetic wave reflection characteristic, the tag including a substrate (11), and a conductor pattern layer (12) formed on the substrate (11) and having first and second slots (13a) and (13b) disposed adjacent to each other, in which the first slot (13a) constitutes a first resonance element (13Qa) having a resonance frequency at a first frequency, the second slot (13b) constitutes a second resonance element (13Qb) having a resonance frequency at a second frequency higher than the first frequency, and when irradiation with the electromagnetic waves is performed, a Q value of a resonance peak appearing at the first frequency is higher than a Q value of a resonance peak appearing at the first frequency when the first slot (13a) alone constitutes a resonance structure of the tag.Type: GrantFiled: August 21, 2020Date of Patent: March 19, 2024Assignee: Konica Minolta, Inc.Inventors: Takumi Ishiwata, Nobuaki Takahashi, Kenji Arai, Takeshi Hakii
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Patent number: 11873780Abstract: Provided is a combined oil ring that can provide reduction in oil consumption of the engine oil without degrading the oil sealing performance between the lower surface of the side rail and the lower surface of the oil ring groove even when the tension of the combined oil ring is reduced.Type: GrantFiled: January 31, 2020Date of Patent: January 16, 2024Assignee: NIPPON PISTON RING CO., LTD.Inventors: Masahiro Uchiumi, Kenji Arai, Kazuhiro Sameshima, Makoto Kajiwara, Hajime Ando
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Publication number: 20240006599Abstract: A novel secondary battery that is highly convenient, useful, or reliable can be provided. The secondary battery includes a positive electrode active material layer, a negative electrode active material layer, and a separator. The separator is interposed between the positive electrode active material layer and the negative electrode active material layer. The negative electrode active material layer includes silicon particles and a binder. The weight ratio of the binder to the silicon particles is greater than or equal to 0.05 and less than or equal to 10. The binder has a carboxy group. The bulk specific gravity of the silicon particles is greater than or equal to 0.02 g/cm3 and less than or equal to 0.5 g/cm3.Type: ApplicationFiled: June 27, 2023Publication date: January 4, 2024Inventors: Kenji ARAI, Taisuke NAKAO
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Publication number: 20230411619Abstract: A negative electrode active material, a negative electrode active material layer, and a secondary battery including them, or a formation method thereof are provided. In one embodiment of the present invention, carbon particles and a silicon-based material are mixed and used as a negative electrode active material. A polymer including a polar substituent such as a carboxy group is used as a binder. Specifically, as the binder for the carbon particles and the silicon-based material, a polymer containing glutamic acid is used. As the silicon-based material, nanosilicon particles each having a particle diameter less than 1 ?m is used.Type: ApplicationFiled: June 9, 2023Publication date: December 21, 2023Inventors: Masayuki KIMURA, Kenji ARAI, Taisuke NAKAO, Kazutaka KURIKI
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Patent number: 11689458Abstract: A control device is connected to a plurality of networks, dispatches a packet received from a user terminal to a network among the plurality of networks, and includes a memory and a processor configured to execute receiving a DNS query packet transmitted from the user terminal, and based on a query target of the DNS query packet, dispatching the DNS query packet to a network among the plurality of networks; and receiving a packet, determining a destination of the packet based on a destination address of the packet, and transmitting the packet to the determined destination.Type: GrantFiled: May 28, 2019Date of Patent: June 27, 2023Assignee: NTT Communications CorporationInventors: Wenyu Shen, Kenji Arai, Ryu Kanishima, Takeo Saga