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).

  • Patent number: 11565281
    Abstract: 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: Grant
    Filed: September 14, 2018
    Date of Patent: January 31, 2023
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Nobuhiko Narita, Hirokazu Okazaki, Tatsuo Kuramochi, Yuya Hirai, Takakazu Yamane, Keiichi Okamoto, Kouji Teramoto, Ryuji Nonaka
  • Patent number: 11548029
    Abstract: 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: Grant
    Filed: September 28, 2018
    Date of Patent: January 10, 2023
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Tatsuo Kuramochi, Hirokazu Okazaki, Nobuhiko Narita, Ryuji Nonaka, Keiichi Okamoto, Kouji Teramoto, Takakazu Yamane
  • Patent number: 11285509
    Abstract: 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: Grant
    Filed: December 27, 2018
    Date of Patent: March 29, 2022
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Hirokazu Okazaki, Tatsuo Kuramochi, Kenji Sakai, Nobuhiko Narita
  • Patent number: 11198150
    Abstract: 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: Grant
    Filed: February 3, 2017
    Date of Patent: December 14, 2021
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Masayuki Itoh, Nobuhiko Narita, Tatsuo Kuramochi
  • Patent number: 11071999
    Abstract: 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: Grant
    Filed: February 6, 2017
    Date of Patent: July 27, 2021
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Hirokazu Okazaki, Masayuki Itoh, Tatsuo Kuramochi
  • Patent number: 10898923
    Abstract: 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: Grant
    Filed: February 6, 2017
    Date of Patent: January 26, 2021
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Masayuki Itoh, Nobuhiko Narita, Tatsuo Kuramochi, Hisashi Isaka, Hirokazu Okazaki
  • Publication number: 20200398308
    Abstract: 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: Application
    Filed: December 27, 2018
    Publication date: December 24, 2020
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Hirokazu OKAZAKI, Tatsuo KURAMOCHI, Kenji SAKAI, Nobuhiko NARITA
  • Publication number: 20200306794
    Abstract: 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: Application
    Filed: September 28, 2018
    Publication date: October 1, 2020
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Tatsuo KURAMOCHI, Hirokazu OKAZAKI, Nobuhiko NARITA
  • Publication number: 20200269278
    Abstract: 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: Application
    Filed: September 14, 2018
    Publication date: August 27, 2020
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Nobuhiko NARITA, Hirokazu OKAZAKI, Tatsuo KURAMOCHI, Yuya HIRAI
  • Publication number: 20200238333
    Abstract: 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: Application
    Filed: February 6, 2017
    Publication date: July 30, 2020
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Masayuki ITOH, Nobuhiko NARITA, Tatsuo KURAMOCHI, Hisashi ISAKA, Hirokazu OKAZAKI
  • Patent number: 10610889
    Abstract: 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: Grant
    Filed: July 29, 2016
    Date of Patent: April 7, 2020
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Masayuki Itoh, Kenichiro Matsunaga, Yosuke Toyoda, Tatsuo Kuramochi, Nobuhiko Narita
  • Publication number: 20190308217
    Abstract: 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: Application
    Filed: February 6, 2017
    Publication date: October 10, 2019
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Hirokazu OKAZAKI, Masayuki ITOH, Tatsuo KURAMOCHI
  • Publication number: 20190001370
    Abstract: 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: Application
    Filed: February 3, 2017
    Publication date: January 3, 2019
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Masayuki ITOH, Nobuhiko NARITA, Tatsuo KURAMOCHI
  • Publication number: 20180214912
    Abstract: 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: Application
    Filed: July 29, 2016
    Publication date: August 2, 2018
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Masayuki ITOH, Kenichiro MATSUNAGA, Yosuke TOYODA, Tatsuo KURAMOCHI, Nobuhiko NARITA
  • Patent number: 7851026
    Abstract: 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: Grant
    Filed: November 1, 2004
    Date of Patent: December 14, 2010
    Assignee: Kansai Paint Co. Ltd.
    Inventors: Tatsuo Kuramochi, Takashi Kawasaki
  • Publication number: 20050208292
    Abstract: 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: Application
    Filed: November 1, 2004
    Publication date: September 22, 2005
    Inventors: Tatsuo Kuramochi, Takashi Kawasaki