Patents by Inventor Tatsuo Kuramochi
Tatsuo Kuramochi 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: 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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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: 11071999Abstract: The present invention relates to an effect pigment dispersion comprising water, a rheology control agent (A), and a flake-effect pigment (B), the flake-effect pigment (B) being an interference pigment in which a transparent or translucent substrate is coated with a metal oxide, and the solids content of the effect pigment dispersion being 0.1 to 15 mass %.Type: GrantFiled: February 6, 2017Date of Patent: July 27, 2021Assignee: KANSAI PAINT CO., LTD.Inventors: Hirokazu Okazaki, Masayuki Itoh, Tatsuo Kuramochi
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Patent number: 10898923Abstract: The present invention relates to an effect pigment dispersion comprising water, a flake aluminum pigment, and a cellulose-based rheology control agent, wherein the effect pigment dispersion contains 0.1 to 10 parts by mass of solids based on 100 parts by mass of all components thereof, the viscosity measured using a Brookfield type viscometer is 400 to 10000 mPa·sec at a rotational speed of 6 revolutions per minute, and the solids content of the flake aluminum pigment is 30 to 200 parts by mass based on 100 parts by mass of the total amount of components other than the flake aluminum pigment in the total solids content.Type: GrantFiled: February 6, 2017Date of Patent: January 26, 2021Assignee: KANSAI PAINT CO., LTD.Inventors: Masayuki Itoh, Nobuhiko Narita, Tatsuo Kuramochi, Hisashi Isaka, Hirokazu Okazaki
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Publication number: 20200398308Abstract: 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: ApplicationFiled: December 27, 2018Publication date: December 24, 2020Applicant: KANSAI PAINT CO., LTD.Inventors: Hirokazu OKAZAKI, Tatsuo KURAMOCHI, Kenji SAKAI, Nobuhiko NARITA
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Publication number: 20200306794Abstract: 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: ApplicationFiled: September 28, 2018Publication date: October 1, 2020Applicant: KANSAI PAINT CO., LTD.Inventors: Tatsuo KURAMOCHI, Hirokazu OKAZAKI, Nobuhiko NARITA
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Publication number: 20200269278Abstract: 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: ApplicationFiled: September 14, 2018Publication date: August 27, 2020Applicant: KANSAI PAINT CO., LTD.Inventors: Nobuhiko NARITA, Hirokazu OKAZAKI, Tatsuo KURAMOCHI, Yuya HIRAI
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Publication number: 20200238333Abstract: The present invention relates to an effect pigment dispersion comprising water, a flake aluminum pigment, and a cellulose-based rheology control agent, wherein the effect pigment dispersion contains 0.1 to 10 parts by mass of solids based on 100 parts by mass of all components thereof, the viscosity measured using a Brookfield type viscometer is 400 to 10000 mPa·sec at a rotational speed of 6 revolutions per minute, and the solids content of the flake aluminum pigment is 30 to 200 parts by mass based on 100 parts by mass of the total amount of components other than the flake aluminum pigment in the total solids content.Type: ApplicationFiled: February 6, 2017Publication date: July 30, 2020Applicant: KANSAI PAINT CO., LTD.Inventors: Masayuki ITOH, Nobuhiko NARITA, Tatsuo KURAMOCHI, Hisashi ISAKA, Hirokazu OKAZAKI
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Patent number: 10610889Abstract: The present invention relates to a method for forming a multilayer coating film, the method comprising sequentially applying a colored coating composition (X), an effect pigment dispersion (Y), and a clear coating composition (Z) to a substrate to form an uncured colored coating film, an uncured effect coating film, and an uncured clear coating film, respectively, and heating the uncured colored coating film, the uncured effect coating film, and the uncured clear coating film to simultaneously cure these three coating films, thereby forming a multilayer coating film; wherein the effect pigment dispersion (Y) contains water, a specific surface modifier (A), a flake-effect pigment (B), and a viscosity modifier (C); and a film obtained by applying the effect pigment dispersion (Y) to a dry film thickness of 0.2 ?m has a light transmittance at a wavelength of 550 nm of 10 to 50%.Type: GrantFiled: July 29, 2016Date of Patent: April 7, 2020Assignee: KANSAI PAINT CO., LTD.Inventors: Masayuki Itoh, Kenichiro Matsunaga, Yosuke Toyoda, Tatsuo Kuramochi, Nobuhiko Narita
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Publication number: 20190308217Abstract: The present invention relates to an effect pigment dispersion comprising water, a rheology control agent (A), and a flake-effect pigment (B), the flake-effect pigment (B) being an interference pigment in which a transparent or translucent substrate is coated with a metal oxide, and the solids content of the effect pigment dispersion being 0.1 to 15 mass %.Type: ApplicationFiled: February 6, 2017Publication date: October 10, 2019Applicant: KANSAI PAINT CO., LTD.Inventors: Hirokazu OKAZAKI, Masayuki ITOH, Tatsuo KURAMOCHI
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Publication number: 20190001370Abstract: 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: ApplicationFiled: February 3, 2017Publication date: January 3, 2019Applicant: KANSAI PAINT CO., LTD.Inventors: Masayuki ITOH, Nobuhiko NARITA, Tatsuo KURAMOCHI
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Publication number: 20180214912Abstract: The present invention relates to a method for forming a multilayer coating film, the method comprising sequentially applying a colored coating composition (X), an effect pigment dispersion (Y), and a clear coating composition (Z) to a substrate to form an uncured colored coating film, an uncured effect coating film, and an uncured clear coating film, respectively, and heating the uncured colored coating film, the uncured effect coating film, and the uncured clear coating film to simultaneously cure these three coating films, thereby forming a multilayer coating film; wherein the effect pigment dispersion (Y) contains water, a specific surface modifier (A), a flake-effect pigment (B), and a viscosity modifier (C); and a film obtained by applying the effect pigment dispersion (Y) to a dry film thickness of 0.2 ?m has a light transmittance at a wavelength of 550 nm of 10 to 50%.Type: ApplicationFiled: July 29, 2016Publication date: August 2, 2018Applicant: KANSAI PAINT CO., LTD.Inventors: Masayuki ITOH, Kenichiro MATSUNAGA, Yosuke TOYODA, Tatsuo KURAMOCHI, Nobuhiko NARITA
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Patent number: 7851026Abstract: The present invention provides a coating method comprising steps of applying a metallic base coating (A) containing a effective pigment on a surface to be coated and subsequently applying a colored clear coating (B) thereon, wherein the metallic base coating (A) forms a coating film having a IV value of 230 or more and a measured value of particle feeling (HG value) on a micro brilliance feeling-measuring apparatus of 60 or less. The method of the present invention is suitable as a top coating for outer panels of automobiles and the like.Type: GrantFiled: November 1, 2004Date of Patent: December 14, 2010Assignee: Kansai Paint Co. Ltd.Inventors: Tatsuo Kuramochi, Takashi Kawasaki
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Publication number: 20050208292Abstract: The present invention provides a coating method comprising steps of applying a metallic base coating (A) containing a effective pigment on a surface to be coated and subsequently applying a colored clear coating (B) thereon, wherein the metallic base coating (A) forms a coating film having a IV value of 230 or more and a measured value of particle feeling (HG value) on a micro brilliance feeling-measuring apparatus of 60 or less. The method of the present invention is suitable as a top coating for outer panels of automobiles and the like.Type: ApplicationFiled: November 1, 2004Publication date: September 22, 2005Inventors: Tatsuo Kuramochi, Takashi Kawasaki