Patents by Inventor Takashi Kawashima
Takashi Kawashima 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: 12292217Abstract: A noise reducing unit includes a common mode choke coil and a first damping portion that is made of a nonmagnetic material. The common mode choke coil includes an annular core, a first winding wound around the core, and a second winding wound around the core and spaced apart from the first winding. The first damping portion surrounds the first winding and the second winding. The first damping portion is configured such that an induced current flows in the first damping portion to generate magnetic flux that resists changes in leakage flux leaking from the core. The noise reducing unit further includes a second damping portion that is made of a magnetic material. The second damping portion is disposed on an opposite side of the first damping portion from the common mode choke coil.Type: GrantFiled: March 8, 2024Date of Patent: May 6, 2025Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Shun Ito, Yoshiki Nagata, Takashi Kawashima, Hiroshi Fukasaku, Shunsuke Ambo, Kazuhiro Shiraishi
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Patent number: 12293862Abstract: A motor-driven compressor includes an inverter device. The inverter device includes a common mode choke coil. The common mode choke coil includes an annular core, two windings wound around the core, and an annular conductor that covers the two windings. The conductor is divided into a first metal plate and a second metal plate, which are combined to form an annular shape such that induced current flows in a circumferential direction of the conductor so as to hinder changes in leakage magnetic flux from the core. The second metal plate is thermally connected to the housing. The first metal plate is thermally connected to the second metal plate. At least one of an electrical resistance value or a thermal resistance value in a current path of the induced current is lower in the second metal plate than in the first metal plate.Type: GrantFiled: October 24, 2023Date of Patent: May 6, 2025Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Shun Ito, Kazuhiro Shiraishi, Yoshiki Nagata, Takashi Kawashima, Hiroshi Fukasaku, Shunsuke Ambo
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Publication number: 20250095938Abstract: An electromagnetic relay includes a sealed housing, a fixed contact, a movable element having a movable contact, a shaft, a movable core, a fixed core, a return spring, an electromagnetic coil and a sleeve. The shaft is slidably inserted in a through-hole formed in the fixed core. The sleeve has a support part supporting the movable core so as to define a position of the movable core relative to the fixed core when no magnetic attraction acts therebetween. At a front end of the sleeve, there is formed a position adjustment part for adjusting a positional relationship between the fixed core and the support part during the direct or indirect fixing of the sleeve to the fixed core.Type: ApplicationFiled: December 2, 2024Publication date: March 20, 2025Applicants: DENSO CORPORATION, DENSO ELECTRONICS CORPORATIONInventors: Ryota KUNIYOSHI, Tomohiro YASUDA, Shingo KURITA, Takashi KAWASHIMA, Hiroshi NAGURA
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Patent number: 12216404Abstract: An actinic ray-sensitive or radiation-sensitive resin composition includes a photoacid generator A that generates an acid represented by General Formula (I), the acid having a pKa of ?1.00 or more; one or more selected from the group consisting of a photoacid generator B that generates an acid having a pKa larger than that of an acid generated from the photoacid generator A by 1.00 or more, and a nitrogen-containing compound C having a pKa of a conjugate acid thereof larger than that of the acid generated from the photoacid generator A by 1.00 or more; and an acid-decomposable resin, in which in a case where the actinic ray-sensitive or radiation-sensitive resin composition includes a photoacid generator D that generates an acid having a pKa of less than ?1.00, a ratio of the number of moles of the photoacid generator A to the number of moles of the photoacid generator D in the composition, is 1.0 or more.Type: GrantFiled: November 29, 2020Date of Patent: February 4, 2025Assignee: FUJIFILM CorporationInventors: Masafumi Kojima, Minoru Uemura, Takashi Kawashima, Akiyoshi Goto, Kei Yamamoto, Kazuhiro Marumo, Keiyu Ou
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Patent number: 12176785Abstract: A waterproof fan includes: a rotating blade configured to be rotatable about a rotation axis; a rotor including a permanent magnet; a stator including a plurality of stator cores located on an inner diameter side relative to the rotating blade, the plurality of stator cores extending in a radial direction relative to the rotation axis, and windings each wound around a respective stator core; a circuit board electrically connected to the windings; a waterproof cover including a first resin, the waterproof cover covering the circuit board; and a molded portion including a second resin, the molded portion covering at least the stator, the waterproof cover includes: a partitioning portion separating the windings from the circuit board; and a protruding portion protruding from the partitioning portion into a space between the windings, and gaps between the windings, and the partitioning portion and the protruding portion are filled with the second resin.Type: GrantFiled: April 11, 2022Date of Patent: December 24, 2024Assignee: SANYO DENKI CO., LTD.Inventors: Naoki Murakami, Koji Ueno, Takashi Kawashima, Naoya Ozumi
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Patent number: 12164228Abstract: An object of the present invention is to provide an actinic ray-sensitive or radiation-sensitive resin composition with which a pattern thus formed has excellent LER and collapse suppressing ability. The actinic ray-sensitive or radiation-sensitive resin composition of the present invention includes a compound that generates an acid upon irradiation with actinic rays or radiation, and a resin whose polarity increases by the action of an acid, in which the resin includes a repeating unit represented by General Formula (B-1), and a content of the repeating unit represented by General Formula (B-1) is 5% to 70% by mass with respect to all the repeating units in the resin.Type: GrantFiled: August 26, 2020Date of Patent: December 10, 2024Assignee: FUJIFILM CorporationInventors: Michihiro Ogawa, Takashi Kawashima, Akihiro Kaneko, Akiyoshi Goto
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Patent number: 12154739Abstract: A power distribution device has a resin part covering a portion of a power line and a portion of a signal line and having a switch adjacent to one surface of the resin part, and a cooling part disposed adjacent to a back surface of the resin part opposite to the one surface. The power line and the signal line each have, inside the resin part, a laid-out portion extending in a planar direction orthogonal to an arrangement direction in which the one surface and the back surface are arranged, and a led-out portion extending from the laid-out portion toward the one surface. The laid-out portion of the power line and the laid-out portion of the signal line are located in a projection area of the cooling unit projected in the arrangement direction, and are separated from each other and arranged in the arrangement direction.Type: GrantFiled: October 12, 2022Date of Patent: November 26, 2024Assignee: DENSO CORPORATIONInventors: Tatsuki Nishimata, Takashi Kawashima, Hajime Oyanagi
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Patent number: 12130327Abstract: An electronic component testing apparatus that tests a DUT (device under test) disposed in a carrier includes: a test head including a socket; and an electronic component handling apparatus that presses the DUT in the carrier against the socket. The socket includes: contactors disposed to correspond to terminals of the DUT that are exposed to the socket via a first opening of the carrier; and a first wall projecting toward the carrier along a pressing direction of the DUT. The electronic component handling apparatus aligns the terminals with the contactors by pressing the DUT against the socket such that a first pressing mechanism of the carrier presses the DUT against the first wall.Type: GrantFiled: August 30, 2022Date of Patent: October 29, 2024Assignee: ADVANTEST CorporationInventors: Naoto Imaizumi, Sungywen Kim, Masanori Nagashima, Takashi Kawashima, Akihiko Ito
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Publication number: 20240310728Abstract: Provided are a photosensitive composition containing a colorant A including a pigment, a pigment derivative B, and a resin C, in which the colorant A includes a blue pigment, the pigment derivative B includes a transparent pigment derivative B1 and a chromatic pigment derivative B2, and a total content of the colorant A and the pigment derivative B in a total solid content of the photosensitive composition is 40% by mass or more; a film formed of the photosensitive composition; a color filter; a solid-state imaging element; and an image display device.Type: ApplicationFiled: May 17, 2024Publication date: September 19, 2024Applicant: FUJIFILM CorporationInventors: Takashi KAWASHIMA, Kazuya OOTA
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Publication number: 20240310088Abstract: A noise reducing unit includes a common mode choke coil and a first damping portion that is made of a nonmagnetic material. The common mode choke coil includes an annular core, a first winding wound around the core, and a second winding wound around the core and spaced apart from the first winding. The first damping portion surrounds the first winding and the second winding. The first damping portion is configured such that an induced current flows in the first damping portion to generate magnetic flux that resists changes in leakage flux leaking from the core. The noise reducing unit further includes a second damping portion that is made of a magnetic material. The second damping portion is disposed on an opposite side of the first damping portion from the common mode choke coil.Type: ApplicationFiled: March 8, 2024Publication date: September 19, 2024Applicant: Kabushiki Kaisha Toyota JidoshokkiInventors: Shun ITO, Yoshiki Nagata, Takashi Kawashima, Hiroshi Fukasaku, Shunsuke Ambo, Kazuhiro Shiraishi
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Patent number: 12038689Abstract: The present invention provides an actinic ray-sensitive or radiation-sensitive resin composition which is excellent in LER performance and a collapse suppressing ability. Furthermore, the present invention provides a resist film, a pattern forming method, and a method for manufacturing an electronic device. The actinic ray-sensitive or radiation-sensitive resin composition of an embodiment of the present invention includes an acid-decomposable resin having a repeating unit represented by General Formula (1), and a compound that generates an acid upon irradiation with actinic rays or radiation.Type: GrantFiled: March 25, 2021Date of Patent: July 16, 2024Assignee: FUJIFILM CorporationInventors: Akihiro Kaneko, Kazunari Yagi, Takashi Kawashima, Akiyoshi Goto
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Patent number: 12032290Abstract: According to the present invention, an actinic ray-sensitive or radiation-sensitive resin composition including a resin P having a repeating unit represented by General Formula (P1) and a compound that generates an acid having a pKa of ?1.40 or more upon irradiation with actinic rays or radiation; and a resist film, a pattern forming method, and a method for manufacturing an electronic device, each using the composition, are provided. Mp represents a single bond or a divalent linking group. Lp represents a divalent linking group. Xp represents O, S, or NRN1. RN1 represents a hydrogen atom or a monovalent organic group. Rp represents a monovalent organic group.Type: GrantFiled: June 11, 2021Date of Patent: July 9, 2024Assignee: FUJIFILM CorporationInventors: Daisuke Asakawa, Takashi Kawashima, Akiyoshi Goto, Michihiro Shirakawa, Kei Yamamoto
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Publication number: 20240199854Abstract: Provided are a composition containing particles having a silanol group, at least one generator selected from the group consisting of an acid generator and a base generator, and a solvent, in which a content of the particles having a silanol group in a total solid content of the composition is 43% by mass or more; a cured film formed of the composition; a structural body; an optical filter; a solid-state imaging element; an image display device; and a manufacturing method of a cured film using the composition.Type: ApplicationFiled: February 16, 2024Publication date: June 20, 2024Applicant: FUJIFLIM CorporationInventors: Keiji YAMAMOTO, Daisuke KASHIWAGI, Takashi KAWASHIMA
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Patent number: 12007688Abstract: An actinic ray-sensitive or radiation-sensitive resin composition includes a resin including a repeating unit represented by Formula (1) and capable of increasing a polarity by an action of an acid.Type: GrantFiled: November 19, 2020Date of Patent: June 11, 2024Assignee: FUJIFILM CorporationInventors: Daisuke Asakawa, Akiyoshi Goto, Masafumi Kojima, Takashi Kawashima, Yasufumi Oishi, Keita Kato
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Patent number: 12001140Abstract: The present invention provides an actinic ray-sensitive or radiation-sensitive resin composition which is excellent in LER performance and a collapse suppressing ability. Furthermore, the present invention provides a resist film, a pattern forming method, and a method for manufacturing an electronic device. The actinic ray-sensitive or radiation-sensitive resin composition of an embodiment of the present invention includes a resin having a polarity that increases by the action of an acid; and a compound that generates an acid upon irradiation with actinic rays or radiation, in which the resin has a repeating unit represented by General Formula (B-1).Type: GrantFiled: February 8, 2021Date of Patent: June 4, 2024Assignee: FUJIFILM CorporationInventors: Kazunari Yagi, Akihiro Kaneko, Takashi Kawashima, Akiyoshi Goto
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Publication number: 20240171102Abstract: An electric motor includes processing circuitry. The processing circuitry estimates the position of a rotor in a mode selected from an induced voltage mode and a harmonic superimposition mode. The induced voltage mode is a mode of estimating the position of the rotor based on an induced voltage that is generated in three-phase coils. The harmonic superimposition mode is a mode of estimating the position of the rotor by superimposing a harmonic on a command value. The processing circuitry estimates the position of the rotor using the induced voltage mode when the output voltage is greater than or equal to a predetermined threshold value and estimates the position of the rotor using the harmonic superimposition mode when the output voltage is less than the threshold value.Type: ApplicationFiled: November 8, 2023Publication date: May 23, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Masashi KUBOTA, Takuya NARUSE, Takashi KAWASHIMA
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Publication number: 20240160049Abstract: To provide an optical laminate that exhibits an achromatic silver color even when observed from any angle in the case of using an optical laminate including a cholesteric liquid crystal layer exhibiting a silver color, and a polarizing lens and eyewear using the same. An optical laminate for eyewear includes a light reflecting layer comprising at least one cholesteric liquid crystal layer; and a support sandwiching the light reflecting layer, in which a reflection hue of the light reflecting layer exhibits a silver color, the light reflecting layer has a reflection characteristic over a wavelength range of at least 380 nm to 900 nm, and an absolute value of a difference (?R1?R2) between an average reflectance (R1) at 500 nm to 700 nm and an average reflectance (R2) at 701 nm to 900 nm of the light reflecting layer is 10 points or less in the wavelength range.Type: ApplicationFiled: March 17, 2022Publication date: May 16, 2024Applicants: NIPPON KAYAKU KABUSHIKI KAISHA, MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yosuke NUMA, Takashi KAWASHIMA, Junichi SEGAWA, Koichi TANAKA, Yuka KAKINUMA
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Publication number: 20240162842Abstract: An electric motor includes processing circuitry estimates a position of a rotor in a mode selected from an induced voltage mode and a harmonic superimposition mode. The processing circuitry estimates the position of the rotor using the induced voltage mode when the input voltage is less than or equal to a predetermined voltage threshold value or when the phase current is greater than or equal to a predetermined current threshold value and estimates the position of the rotor using the harmonic superimposition mode when the input voltage is greater than the voltage threshold value and the phase current is less than the current threshold value.Type: ApplicationFiled: November 8, 2023Publication date: May 16, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Masashi KUBOTA, Takuya NARUSE, Takashi KAWASHIMA
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Patent number: 11985837Abstract: To provide a photoelectric conversion element capable of further improving performance in a photoelectric conversion element using an organic semiconductor material. The photoelectric conversion element includes a first electrode and a second electrode arranged to face each other, and a photoelectric conversion layer 17 provided between the first electrode and the second electrode, in which the photoelectric conversion layer 17 includes a first organic semiconductor material and a second organic semiconductor material, and at least one of the first organic semiconductor material or the second organic semiconductor material is an organic molecule having a HOMO volume fraction of 0.15 or less or a LUMO volume fraction of 0.15 or less.Type: GrantFiled: July 25, 2019Date of Patent: May 14, 2024Assignees: Sony Corporation, Sony Semiconductor Solutions CorporationInventors: Shinnosuke Hattori, Hajime Kobayashi, Sae Miyaji, Masato Kanno, Miki Kimijima, Yuta Hasegawa, Toshio Nishi, Takashi Kawashima, Yosuke Saito, Yuta Inaba
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Publication number: 20240145152Abstract: A motor-driven compressor includes an inverter device. The inverter device includes a common mode choke coil. The common mode choke coil includes an annular core, two windings wound around the core, and an annular conductor that covers the two windings. The conductor is divided into a first metal plate and a second metal plate, which are combined to form an annular shape such that induced current flows in a circumferential direction of the conductor so as to hinder changes in leakage magnetic flux from the core. The second metal plate is thermally connected to the housing. The first metal plate is thermally connected to the second metal plate. At least one of an electrical resistance value or a thermal resistance value in a current path of the induced current is lower in the second metal plate than in the first metal plate.Type: ApplicationFiled: October 24, 2023Publication date: May 2, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Shun ITO, Kazuhiro SHIRAISHI, Yoshiki NAGATA, Takashi KAWASHIMA, HIROSHI FUKASAKU, Shunsuke AMBO