Patents by Inventor Kenji Sakai
Kenji Sakai 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: 20240147612Abstract: A printed wiring board includes a base and a conductor layer. A through hole reaching the second surface from the first surface is formed in the base. A first opening of the through hole is formed in the first surface of the base. A second opening of the through hole is formed in the second surface of the base. A conductor layer is disposed inside the through hole. The base includes a first protrusion. The first protrusion protrudes from an edge portion of the first opening. The first opening has a first opening width in a first cross section passing through the first protrusion and a center of the first opening and taken along a thickness direction of the base. The second opening has a second opening width in the first cross section. The first opening width is smaller than the second opening width.Type: ApplicationFiled: July 8, 2022Publication date: May 2, 2024Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kenji TAKAHASHI, Shoichiro SAKAI
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Publication number: 20240147613Abstract: The present invention addresses the problem that, when applying pressure and heat to laminate substrates, to maintain the flatness of the substrates so as not to have the load concentrated in one part, and to prevent the occurrence of resistance value abnormalities by making the electrically conductive layers between terminal parts uniform over the entire substrate.Type: ApplicationFiled: April 14, 2022Publication date: May 2, 2024Applicant: FICT LIMITEDInventors: Takashi Nakagawa, Norikazu Ozaki, Taiji Sakai, Kenji Takano, Kenji Iida
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Publication number: 20240128824Abstract: A dynamo-electric machine comprising: a stator core with plurality of slots, a coil covered with insulated conductor wire, wherein the coil comprising plurality of storages stored in the slots and plurality of coil ends that are outside of the slots, conductor of coil end close to the conductor of the heterophase coil having insulating materials at only one of the surfaces, either the inner diameter surface close to the conductor of the heterophase coil or outer diameter surface of the heterophase coil.Type: ApplicationFiled: December 16, 2021Publication date: April 18, 2024Inventors: Kenji IKEDA, Yuji ENOMOTO, Hirooki TOKOI, Mizuki NAKAHARA, Hiroyuki MIKAMI, Toshifumi SUZUKI, Toru SAKAI, Masaru AMAIKE, Yuji TSUJI
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Patent number: 11955858Abstract: A first portion of an insulator is provided on a first region of an end surface of a tooth. A second portion of the insulator is provided on a second region of the end surface of the tooth so as to be separated from the first portion in a circumferential direction. A third portion of the insulator is connected to fourth side ends of the first portion and the second portion in a radial direction. A coil includes a crossing portion in a coil end. A stator includes an insert body in a housing space. The insert is made of a material having a higher thermal conductivity than a material forming the insulator.Type: GrantFiled: November 21, 2019Date of Patent: April 9, 2024Assignee: TOP CO., LTD.Inventors: Yuji Amaya, Norihito Shimode, Yuga Hashizume, Takao Sakai, Kenji Sasaki
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Patent number: 11932781Abstract: The present invention provides an effect pigment dispersion that contains water, a wetting agent (A), a flake-effect pigment (B), and specific cellulose nanofibers (C). The effect pigment dispersion has a solids content of 0.1 to 10 parts by mass, per 100 parts by mass of all of the components of the effect pigment dispersion; and has a viscosity of 100 to 10000 mPa·sec as measured with a Brookfield viscometer at a rotational speed of 6 revolutions per minute.Type: GrantFiled: September 24, 2019Date of Patent: March 19, 2024Assignee: KANSAI PAINT CO., LTD.Inventors: Kenji Sakai, Nobuhiko Narita
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Patent number: 11929054Abstract: An object of the present invention is to provide a soundproof material having a practically useful high-level sound absorption coefficient that while maintaining thinness, and further having an expanded sound-absorbable frequency region. A means for solving the problem is a soundproof material comprising: a surface cover layer composed of a fiber material; a back-surface layer laminated onto the surface cover layer, and composed of a porous material with voids interconnected with each other; and a joining layer laminated between the surface cover layer and the back-surface layer, and composed of a joining material, wherein the fiber material has an average fiber diameter of 1 to 10 ?m and an air-permeation volume of 5 to 200 cm3/cm2·sec, and wherein the joining layer has a joint area percentage of 50 to 95% with respect to the entire surface where the surface cover layer and the back-surface layer face each other.Type: GrantFiled: July 26, 2019Date of Patent: March 12, 2024Assignee: MAXELL, LTD.Inventors: Norikazu Matsumoto, Shoko Sakai, Kenji Ohtani, Teruhisa Miyata
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Patent number: 11912775Abstract: A monoclonal antibody is provided which binds to a human CC chemokine receptor 1 (CCR1) and inhibits activation of the human CCR1, or an antibody fragment thereof. The monoclonal antibody binds to an extracellular region of a human CCR1 and inhibits activation of the human CCR1 by a human CC chemokine ligand 15 (CCL15). An antibody fragment thereof, a hybridoma producing the antibody, a nucleic acid having a nucleotide sequence encoding the antibody or the antibody fragment, a transformant cell containing a vector containing the nucleic acid, a method for producing the antibody or the antibody fragment using the hybridoma or the transformant cell; a therapeutic agent and a diagnostic agent containing the antibody or the antibody fragment, and a method for treating and diagnosing a CCR1-related disease using the antibody or the antibody fragment are also provided.Type: GrantFiled: July 18, 2018Date of Patent: February 27, 2024Assignees: KYOWA KIRIN CO., LTD., KYOTO UNIVERSITYInventors: Masayuki Kai, Shinya Ogawa, Makoto Taketo, Kenji Kawada, Hideyo Hirai, Yoshiharu Sakai, Taira Maekawa
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Patent number: 11898078Abstract: A semiconductor phosphor configured to exhibit photoluminescence upon irradiation with excitation light, including: at least one active layer made of a compound semiconductor and containing an n-type or p-type dopant; and at least two barrier layers made of a compound semiconductor and having a larger band gap than the active layer. The active layer and the barrier layers are alternately stacked. This provides a semiconductor phosphor which allows easy wavelength adjustment, high efficiency and stability.Type: GrantFiled: October 11, 2018Date of Patent: February 13, 2024Assignee: SHIN-ETSU HANDOTAI CO., LTD.Inventors: Susumu Higuchi, Kenji Sakai, Masato Yamada, Masanobu Takahashi, Junya Ishizaki
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Publication number: 20230358485Abstract: Clamping device 20 is a clamping device for clamping and fixing core 10, whose interior is divided into multiple flow channels F1, F2 by plates 11 that are stacked, of stacked heat exchanger 1 in stacking direction Z of plates 11, including: two end plates 21, 22 placed on both sides of core 10 in stacking direction Z; connecting member 23 connecting two end plates 21, 22 to keep two end plates 21, 22 apart by a distance greater than a length of core 10 in stacking direction Z; and bolts 24 inserted respectively into thread through-holes 21a, 22a formed on each of end plates 21, 22 for pressing core 10 in stacking direction Z.Type: ApplicationFiled: August 26, 2021Publication date: November 9, 2023Applicant: TOYO ENGINEERING CORPORATIONInventors: Takeshi SATO, Satoshi NAGATA, Kenji SAKAI
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Publication number: 20230303856Abstract: An effect pigment dispersion containing a wetting agent (A), a flake-effect pigment (B), a sulfonic acid-modified cellulose nanofiber (C), and water (D), the effect pigment dispersion containing a solid content of 0.1 to 10 parts by mass per 100 parts by mass of a total of all components of the effect pigment dispersion.Type: ApplicationFiled: May 17, 2021Publication date: September 28, 2023Applicant: KANSAI PAINT CO., LTD.Inventors: Nobuhiko NARITA, Kenji SAKAI
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Publication number: 20230278071Abstract: An object to be solved by the present invention is to provide a multilayer coating film forming method by which a multilayer coating film having reduced nonuniformity and exhibiting excellent luster and high flip-flop properties can be formed. The present invention provides a multilayer coating film forming method characterized by including: applying an aqueous first colored paint (X) containing a color pigment (x1) and an effect pigment (x2) on an object to be coated to form a first colored coating film; applying an aqueous second colored paint (Y) containing a viscosity modifier (y1), a color pigment (y2), and an effect pigment (y3) to form a second colored coating film; applying a clear paint (Z) to form a clear coating film; and curing by heating, wherein a solid content of the aqueous second colored paint (Y) is in a range of 0.Type: ApplicationFiled: July 6, 2021Publication date: September 7, 2023Applicant: KANSAI PAINT CO., LTD.Inventor: Kenji SAKAI
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Publication number: 20230108182Abstract: A method for forming a multilayer coating film, comprising the steps of applying a color paint (W) to a substrate to form a colored coating film; applying an effect pigment dispersion (X) to the colored coating film, wherein the effect pigment dispersion (X) contains an effect pigment (x2), and the content of the effect pigment (x2) in the effect pigment dispersion (X) is within a range of 15 to 80 parts by mass, based on 100 parts by mass of the total solids content in the effect pigment dispersion (X), to form an effect first base coating film; applying a transparent colored second base paint (Y) containing a color pigment (y2) to form a transparent colored second base coating film; and applying a clear paint (Z) to form a clear coating film, wherein the clear paint (Z) contains a hydroxy-containing acrylic resin (z1) and an aliphatic triisocyanate compound (z2-1) having a molecular weight within a range of 200 to 350.Type: ApplicationFiled: March 24, 2021Publication date: April 6, 2023Applicant: KANSAI PAINT CO., LTD.Inventors: Kenji SAKAI, Nobuhiko NARITA
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Publication number: 20220403204Abstract: The present invention addresses the problem of providing an aqueous paint composition that has a relatively high solid content ratio and that is capable of forming a coating film having excellent brilliance. The present invention provides an aqueous paint composition that contains (A) a water-dispersible hydroxy-containing acrylic resin, (B) a flake-effect pigment, and (C) a water-dispersible cellulose-based rheology control agent, wherein the content of the flake-effect pigment (B) is within a range of 1 to 50 parts by mass based on 100 parts by mass of the resin solids content in the aqueous paint composition, and the aqueous paint composition has a solids content of more than 10 mass % and 35 mass % or less.Type: ApplicationFiled: November 11, 2020Publication date: December 22, 2022Applicant: KANSAI PAINT CO., LTD.Inventors: Kenji SAKAI, Nobuhiko NARITA
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Publication number: 20220355338Abstract: This invention provides a method for forming a multilayer coating film, comprising applying a base paint (X) having a solids content ratio of 30 to 62 mass % to a substrate to form a base coating film having a cured film thickness of 6 to 45 ?m; applying an effect pigment dispersion (Y) having a solids content ratio of 0.1 to 10 mass % to the base coating film to form an effect coating film having a cured film thickness of 0.1 to 5.Type: ApplicationFiled: September 10, 2020Publication date: November 10, 2022Applicant: KANSAI PAINT CO., LTD.Inventor: Kenji SAKAI
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Publication number: 20220348773Abstract: An effect paint for automobiles, comprising water, a dispersant (A), cellulose nanofibers (B), and an effect pigment (C).Type: ApplicationFiled: June 17, 2020Publication date: November 3, 2022Applicant: KANSAI PAINT CO., LTD.Inventors: Kenji SAKAI, Nobuhiko NARITA
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Patent number: 11285509Abstract: A method for forming a multilayer coating film, the method including the following steps (1) to (3): (1) applying a colored paint (X) to a substrate to form a colored coating film whose lightness L* value in the L*a*b* color space is 5 or less, (2) applying an effect pigment dispersion (Y) to the colored coating film formed in step (1) to form an effect coating film, and (3) applying a clear paint (Z) to the effect coating film formed in step (2) to form a clear coating film, wherein the effect pigment dispersion (Y) contains water, a rheology control agent (A), and a flake-effect pigment (B), the flake-effect pigment (B) being an effect pigment in which a transparent or translucent base material is coated with a metal oxide, and the effect pigment dispersion (Y) having a solids content of 0.Type: GrantFiled: December 27, 2018Date of Patent: March 29, 2022Assignee: KANSAI PAINT CO., LTD.Inventors: Hirokazu Okazaki, Tatsuo Kuramochi, Kenji Sakai, Nobuhiko Narita
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Publication number: 20210348004Abstract: The present invention provides an effect pigment dispersion that contains water, a wetting agent (A), a flake-effect pigment (B), and specific cellulose nanofibers (C). The effect pigment dispersion has a solids content of 0.1 to 10 parts by mass, per 100 parts by mass of all of the components of the effect pigment dispersion; and has a viscosity of 100 to 10000 mPa·sec as measured with a Brookfield viscometer at a rotational speed of 6 revolutions per minute.Type: ApplicationFiled: September 24, 2019Publication date: November 11, 2021Applicant: KANSAI PAINT CO., LTD.Inventors: Kenji SAKAI, Nobuhiko NARITA
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Publication number: 20210336410Abstract: A semiconductor laser device A1 comprises a semiconductor laser chip 2 and a stem 1. The stem 1 includes a base 11 and leads 3A, 3B, and 3C fixed to the base, and supports the semiconductor laser chip 2. The semiconductor laser device A1 further comprises a first metal layer 15 including a first layer 151 covering the base 11 and the leads 3A, 3B, and 3C, a second layer 152 interposed between the first layer 151 and each of the base 11 and the leads 3A, 3B, and 3C, and a third layer 153 interposed between the second layer 152 and each of the base 11 and the leads 3A, 3B, and 3C. Crystal grains in the second layer 152 are smaller than crystal grains in the third layer 153. Such a configuration can suppress corrosion.Type: ApplicationFiled: September 24, 2019Publication date: October 28, 2021Inventors: Hiroyuki TAJIRI, Kenji SAKAI, Kazuyoshi IZUMI
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Publication number: 20210269666Abstract: An actinic energy ray-curable composition contains a low-refractive-index material capable of dissolving in a general-purpose solvent and that can impart excellent scratch resistance to a surface of its cured coating film, and a cured film and an antireflection film thereof. An actinic energy ray-curable composition contains a poly(perfluoroalkylene ether) chain-containing actinic energy ray-curable polyfunctional compound (I) and an actinic energy ray-curable compound (II) that is a copolymer of polymerizable unsaturated monomers, the actinic energy ray-curable compound (II) having a side chain containing a fluorinated alkyl group (x) having 1 to 6 carbon atoms to which a fluorine atom is attached and a side chain containing an actinic energy ray-curable group (y), the actinic energy ray-curable compound (II) having a silicone chain (z) with a molecular weight of 2,000 or more at one end of the copolymer, and a cured film and an antireflection film obtained by curing the composition.Type: ApplicationFiled: June 25, 2019Publication date: September 2, 2021Applicant: DIC CorporationInventors: Miki Ota, Ryosuke Hashide, Kazuki Obi, Nobuyuki Koike, Kenji Sakai
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Publication number: 20210265812Abstract: A semiconductor laser device includes a semiconductor laser chip that emits laser light, a plate-like base, and a block protruding from the base and supporting the semiconductor laser chip. The block has a supporting surface and a wire bonding surface. The supporting surface faces a first side in a first direction perpendicular to the laser light emitting direction, and supports the semiconductor laser chip. The wire bonding surface is a surface to which a wire connected to the semiconductor laser chip is connected. The wire bonding surface is shifted in a second direction perpendicular to the emitting direction and the first direction with respect to the supporting surface. The wire bonding surface is inclined relative to the supporting surface, such that the wire bonding surface is more offset to a second side in the first direction with increasing distance from the supporting surface in the second direction.Type: ApplicationFiled: September 19, 2019Publication date: August 26, 2021Inventors: Kenji SAKAI, Kazuyoshi IZUMI