Patents by Inventor Ryusuke MURAMOTO

Ryusuke MURAMOTO 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).

  • Method for forming multilayer coating film
    Patent number: 10099252
    Abstract: A method for forming a multilayer coating film includes applying an aqueous first base coating composition (A) onto a cured electrodeposition coating film, applying an aqueous second base coating composition (B) without preheating, performing preheating, further applying a clear coating composition (C), and simultaneously heat-curing the first base coating film, the second base coating film, and the clear coating film. The aqueous first base coating composition contains a specific aqueous polyester resin, a specific aqueous acrylic resin, a specific aqueous urethane resin and a melamine resin. A breaking energy of a coating film formed of the aqueous first base coating composition and a peel strength between the coating film and the cured electrodeposition coating film are controlled to specific values.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: October 16, 2018
    Assignees: KANSAI PAINT CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Ryusuke Muramoto, Hiroshi Kitagawa, Yusuke Kurata, Takeshi Ogawa
  • METHOD FOR FORMING MULTILAYER COATING FILM
    Publication number: 20180133755
    Abstract: A method for forming a multilayer coating film includes applying an aqueous first base coating composition (A) onto a cured electrodeposition coating film, applying an aqueous second base coating composition (B) without preheating, performing preheating, further applying a clear coating composition (C), and simultaneously heat-curing the first base coating film, the second base coating film, and the clear coating film. The aqueous first base coating composition contains a specific aqueous polyester resin, a specific aqueous acrylic resin, a specific aqueous urethane resin and a melamine resin. A breaking energy of a coating film formed of the aqueous first base coating composition and a peel strength between the coating film and the cured electrodeposition coating film are controlled to specific values.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 17, 2018
    Applicants: KANSAI PAINT CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Ryusuke MURAMOTO, Hiroshi KITAGAWA, Yusuke KURATA, Takeshi OGAWA