Patents by Inventor Nobuhiko Narita
Nobuhiko Narita 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: 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: 11865576Abstract: A laminate containing a metallic base layer and a transparent colored layer formed on the metallic base layer, wherein, when X=[(C*45)2+(C*75)2)]1/2, and Y=[(L*15)2+(C*15)2)]1/2+[(L*25)2+(C*25)2)]1/2, X is 64 or more, and Y is 191 or more; and the measured value of graininess (HG value) is 45 or less, with the proviso that C*15, C*25, C*45, and C*75 represent chroma calculated from spectral reflectances of light illuminated at an incident angle of 45 degrees with respect to the laminate and received at respective angles of 15 degrees, 25 degrees, 45 degrees, and 75 degrees deviated from the specular reflection light, and that L*15 and L*25 represent lightness calculated from spectral reflectances of light illuminated at an incident angle of 45 degrees with respect to the laminate and received at respective angles of 15 degrees and 25 degrees deviated from the specular reflection light.Type: GrantFiled: December 14, 2018Date of Patent: January 9, 2024Assignee: KANSAI PAINT CO., LTD.Inventors: Ikumi Ono, Nobuhiko Narita, Hirokazu Okazaki
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Patent number: 11806746Abstract: Provided is a multilayer coating film comprising an effect base coating film and a colored base coating film formed on the effect base coating film, wherein when X=[(C*45)2+(C*75)2]1/2 and Y=[(L*15)2+(C*15)2]1/2+[(L*25)2+(C*25)2]1/2, X is 80 or more and Y is 145 or more (wherein C*15, C*25, C*45, and C*75 represent chroma values calculated from spectral reflectances of light illuminated at an incident angle of 45 degrees and received at light-receiving angles of 15 degrees, 25 degrees, 45 degrees, and 75 degrees deviated from specular reflection light to the side closer to the incident light; and L*15 and L*25 represent lightness values when light illuminated at an incident angle of 45 degrees is received at light-receiving angles of 15 degrees and 25 degrees deviated from specular reflection light to the side closer to the incident light).Type: GrantFiled: December 13, 2019Date of Patent: November 7, 2023Assignee: KANSAI PAINT CO., LTD.Inventors: Hirokazu Okazaki, Nobuhiko Narita
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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: 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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Patent number: 11577672Abstract: A grommet is provided including a grommet body made of rubber-like elastic material and to be mounted on a mating component, and a center shaft configured to secure the grommet body on the mating component. The grommet body includes a cylindrical insertion portion to be inserted into a mounting hole formed on the mating component, a folded catcher formed on the leading end of the insertion portion, an umbrella-shaped head formed on the rear end of the insertion portion, and a groove-like release space defined on the inner circumferential surface of the insertion portion. The center shaft includes a shaft to be inserted into the inner circumference of the insertion portion, a folded catcher formed on the leading end of the shaft, and a head formed on the rear end of the shaft.Type: GrantFiled: August 10, 2018Date of Patent: February 14, 2023Inventor: Nobuhiko Narita
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Patent number: 11565281Abstract: A method for forming a multilayer coating film comprising the steps of: (1) applying a base paint (X) to a substrate to form a base coating film, (2) applying an effect pigment dispersion (Y) to the base coating film formed in step (1) to form an effect coating film, (3) applying a clear paint (Z) to the effect coating film formed in step (2) to form a clear coating film, and (4) heating the uncured base coating film, the uncured effect coating film, and the uncured clear coating film formed in steps (1) to (3) to thereby simultaneously cure these three coating films; wherein the effect pigment dispersion (Y) contains water, a black pigment (A), a vapor deposition metal flake pigment (B), and a rheology control agent (C).Type: GrantFiled: September 14, 2018Date of Patent: January 31, 2023Assignee: KANSAI PAINT CO., LTD.Inventors: Nobuhiko Narita, Hirokazu Okazaki, Tatsuo Kuramochi, Yuya Hirai, Takakazu Yamane, Keiichi Okamoto, Kouji Teramoto, Ryuji Nonaka
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Patent number: 11548029Abstract: Provided is a method for forming a multilayer coating film including the following steps (1) to (4): (1) applying a base paint (X) to a substrate to form a base coating film; (2) applying a specific effect pigment dispersion (Y) to the base coating film formed in step (1) to form an effect coating film with a specific dry film thickness; (3) applying a clear paint (Z) to the effect coating film formed in step (2) to form a clear coating film; and (4) heating the uncured base coating film, the uncured effect coating film, and the uncured clear coating film formed in steps (1) to (3) to simultaneously cure these three coating films.Type: GrantFiled: September 28, 2018Date of Patent: January 10, 2023Assignee: KANSAI PAINT CO., LTD.Inventors: Tatsuo Kuramochi, Hirokazu Okazaki, Nobuhiko Narita, Ryuji Nonaka, Keiichi Okamoto, Kouji Teramoto, Takakazu Yamane
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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: 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: 11407210Abstract: A laminate containing a metallic base layer and a transparent colored layer formed on the metallic base layer. The metallic base layer contains an aluminum pigment, a light-scattering component, a surface adjusting agent, and a rheology control agent, the aluminum pigment being present in an amount of 15 to 70 parts by mass, on a solids basis; and the light-scattering component being present in an amount of 5 to 55 parts by mass, on a solids basis, based on 100 parts by mass of the metallic base layer. The transparent colored layer contains a resin component, a curing agent, and a color pigment, the color pigment being present in an amount of 0.5 to 10 parts by mass, based on 100 parts by mass of the resin solids content of the transparent colored layer.Type: GrantFiled: December 14, 2018Date of Patent: August 9, 2022Assignee: KANSAI PAINT CO., LTD.Inventors: Ikumi Ono, Nobuhiko Narita, Hirokazu Okazaki
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Publication number: 20220168777Abstract: Provided is a multilayer coating film comprising an effect base coating film and a colored base coating film formed on the effect base coating film, wherein when X=[(C*45)2+(C*75)2]1/2 and Y=[(L*15)2+(C*15)2]1/2+[(L*25)2+(C*25)2]1/2, X is 80 or more and Y is 145 or more (wherein C*15, C*25, C*45, and C*75 represent chroma values calculated from spectral reflectances of light illuminated at an incident angle of 45 degrees and received at light-receiving angles of 15 degrees, 25 degrees, 45 degrees, and 75 degrees deviated from specular reflection light to the side closer to the incident light; and L*15 and L*25 represent lightness values when light illuminated at an incident angle of 45 degrees is received at light-receiving angles of 15 degrees and 25 degrees deviated from specular reflection light to the side closer to the incident light).Type: ApplicationFiled: December 13, 2019Publication date: June 2, 2022Applicant: KANSAI PAINT CO., LTD.Inventors: Hirokazu OKAZAKI, Nobuhiko NARITA
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Publication number: 20220161294Abstract: Provided is a multilayer coating film comprising a colored base coating film and an effect base coating film formed on the colored base coating film, wherein the hue angle h in the L*C*h color space diagram is within the range of 30° to 70°, and when the following formulas hold: X=[(C*45)2+(C*75) 2]1/2, and Y=[(L*15)2+(C*15)2]1/2+[(L*25)2+(C*25)2]1/2, X is 80 or more and Y is 140 or more; provided that C*15, C*25, C*45, and C*75 represent the chroma of the multilayer coating film when light is illuminated at an angle of 45 degrees and received at angles of 15 degrees, 25 degrees, 45 degrees, and 75 degrees deviated from the specular reflection light in the incident light direction, and L*15 and L*25 similarly represent the lightness of the multilayer coating film.Type: ApplicationFiled: December 18, 2019Publication date: May 26, 2022Applicant: KANSAI PAINT CO., LTD.Inventors: Hirokazu OKAZAKI, 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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Patent number: 11198150Abstract: This invention relates to a multilayer coating film sequentially comprising, on a substrate, a colored coating film, an effect coating film, and a clear coating film, wherein the multilayer coating film has a lightness L*110 within a range of 60 to 90, the lightness L*110 being based on a spectral reflectance of light illuminated at an angle of 45 degrees with respect to the coating surface and received at an angle of 110 degrees with respect to the specularly reflected light; a 60-degree specular gloss within a range of 105 to 180, a graininess HG within a range of 10 to 40; and a flip-flop value within a range of 1.0 to 1.8.Type: GrantFiled: February 3, 2017Date of Patent: December 14, 2021Assignee: KANSAI PAINT CO., LTD.Inventors: Masayuki Itoh, Nobuhiko Narita, Tatsuo Kuramochi
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Patent number: 11185885Abstract: A method for forming a multilayer coating film comprising the steps of: applying, to a substrate, an effect pigment dispersion that comprises water, a surface adjusting agent, a flake-effect pigment, and a rheology control agent, and that has a solids content within the range of 0.5 to 10 mass % to form an effect pigment-containing coating film; and applying a colored transparent paint to the effect pigment-containing coating film to form a colored transparent coating film having a total light transmittance at a wavelength of 400 nm to 700 nm of 20 to 70%.Type: GrantFiled: October 31, 2018Date of Patent: November 30, 2021Assignee: KANSAI PAINT CO., LTD.Inventors: Ikumi Ono, Nobuhiko Narita, Hirokazu Okazaki
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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: 20210214571Abstract: 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: ApplicationFiled: May 22, 2019Publication date: July 15, 2021Applicant: KANSAI PAINT CO., LTD.Inventors: Yosuke HASEGAWA, Nobuhiko NARITA, Masayuki ITOH, Kenji SAKAI
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Publication number: 20210178428Abstract: A method for forming a multilayer coating film comprising the steps of: applying, to a substrate, an effect pigment dispersion that comprises water, a surface adjusting agent, a flake-effect pigment, and a rheology control agent, and that has a solids content within the range of 0.5 to 10 mass % to form an effect pigment-containing coating, film; and applying a colored transparent paint to the effect pigment-containing coating film to form a colored transparent coating film having a total light transmittance at a wavelength of 400 nm to 700 nm of 20 to 70%.Type: ApplicationFiled: October 31, 2018Publication date: June 17, 2021Applicant: KANSAI PAINT CO., LTD.Inventors: Ikumi ONO, Nobuhiko NARITA, Hirokazu OKAZAKI
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Publication number: 20210170446Abstract: A method for forming a multilayer coating film includes forming a base coating film, a photoluminescent coating film, and forming a clear coating in this order, wherein the photoluminescent coating film uses a photoluminescent pigment dispersion containing a scaly photoluminescent pigment having a thickness T of 1 to 65 nm, wherein when all photoluminescent pigment present in the multilayer coating film is projected onto the surface of the multilayer coating film, the area occupancy ratio R indicating how much of the surface of the multilayer coating film is occupied by the parts in which the photoluminescent pigment is projected, is 0.1 to 50 percent; and the T and R satisfy “T (nm)×R (%)?2000”. The obtained multilayer coating film can manifest excellent photoluminescence.Type: ApplicationFiled: May 20, 2019Publication date: June 10, 2021Inventors: Hirokazu OKAZAKI, Nobuhiko NARITA