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: 20250071892Abstract: A printed wiring board includes: a base material having a main surface; a conductive pattern that is disposed on the main surface; and a plating layer. A through hole is formed in the base material. The through hole extends through the base material in a thickness direction. A thickness of the base material is 0.5 mm or more. The plating layer is disposed on at least an inner wall surface of the through hole and electrically connected to a portion of the conductive pattern around the through hole. A thickness of the plating layer on the inner wall surface of the through hole is greater than a thickness of the conductive pattern and 10 ?m or more.Type: ApplicationFiled: December 21, 2022Publication date: February 27, 2025Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Kenji TAKAHASHI, Shoichiro SAKAI, Satoshi KIYA
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Publication number: 20250063661Abstract: A printed wiring board includes: a first conductive pattern; a dielectric layer that is disposed to cover the first conductive pattern; a second conductive pattern that is disposed on the dielectric layer; and a plating layer. A thickness of the dielectric layer is 50 ?m or more and 500 ?m or less. A hole from which the first conductive pattern is exposed is formed in the dielectric layer. An aspect ratio of the hole is 0.5 or more and 2.0 or less. The plating layer is disposed on at least an inner wall surface of the hole and the first conductive pattern exposed from the hole, and electrically connected to the second conductive pattern. A thickness of the plating layer disposed on the first conductive pattern exposed from the hole is greater than a thickness of the second conductive pattern.Type: ApplicationFiled: December 21, 2022Publication date: February 20, 2025Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Kenji TAKAHASHI, Shoichiro SAKAI, Satoshi KIYA
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Patent number: 12220394Abstract: The present invention pertains to a pharmaceutical composition for the prevention or treatment of kidney disease, a kidney inflammation inhibitor, an inflammatory cell death inhibitor for the kidneys, or a food for the prevention or improvement of kidney disease, that include D-alanine or a derivative thereof. In addition, the present invention pertains to the use of D-alanine or a derivative thereof, for the production of a pharmaceutical composition for the prevention or treatment of kidney disease.Type: GrantFiled: June 6, 2019Date of Patent: February 11, 2025Assignees: National University Corporation Kanazawa University, Kagami Inc.Inventors: Takashi Wada, Kengo Furuichi, Norihiko Sakai, Yasunori Iwata, Akinori Hara, Yusuke Nakade, Kenji Hamase, Masashi Mita
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Patent number: 12113330Abstract: 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: GrantFiled: September 19, 2019Date of Patent: October 8, 2024Assignee: ROHM CO., LTD.Inventors: Kenji Sakai, Kazuyoshi Izumi
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Patent number: 12097532Abstract: 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: GrantFiled: September 10, 2020Date of Patent: September 24, 2024Assignee: KANSAI PAINT CO., LTD.Inventor: Kenji Sakai
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Publication number: 20240294779Abstract: A multilayer coating film-forming method including: (1) applying a photoluminescent coating material composition (Y) onto an object to be coated to form a photoluminescent coating film; (2) applying a clear coating material composition (Z) containing (z1) a hydroxyl group-containing resin and (z2) a polyisocyanate compound onto the photoluminescent coating film produced in (1) to form a clear coating film; and (3) heating, separately or simultaneously, the photoluminescent coating film formed in (1) and the clear coating film formed in (2) to cure the photoluminescent coating film and the clear coating film, the photoluminescent coating material composition (Y) containing an indium particle (y1), a surface conditioner (y2), and an organic solvent (y3), and a solid content being from 0.1 to 15 mass %.Type: ApplicationFiled: March 28, 2022Publication date: September 5, 2024Applicant: KANSAI PAINT CO., LTD.Inventors: Nobuhiko NARITA, Kenji SAKAI
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Patent number: 12054631Abstract: The problem to be solved by the present invention is to provide an effect pigment dispersion that exhibits excellent water resistance, that can form metallic or pearly luster, and that further exhibits high stability; and to provide a method for forming a multilayer coating film. The present invention provides an effect pigment dispersion that contains water, a wetting agent (A), a flake-effect pigment (B), and a phosphate-group-containing cellulose-based rheology control agent (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: May 22, 2019Date of Patent: August 6, 2024Assignee: KANSAI PAINT CO., LTD.Inventors: Yosuke Hasegawa, Nobuhiko Narita, Masayuki Itoh, Kenji Sakai
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Patent number: 12043763Abstract: An effect paint for automobiles, comprising water, a dispersant (A), cellulose nanofibers (B), and an effect pigment (C).Type: GrantFiled: June 17, 2020Date of Patent: July 23, 2024Assignee: KANSAI PAINT CO., LTD.Inventors: Kenji Sakai, Nobuhiko Narita
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Patent number: 12040590Abstract: 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: GrantFiled: September 24, 2019Date of Patent: July 16, 2024Assignee: ROHM CO., LTD.Inventors: Hiroyuki Tajiri, Kenji Sakai, Kazuyoshi Izumi
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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: 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