Patents by Inventor Ryoko MITANI

Ryoko MITANI 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).

  • Film-forming composition, method for producing surface-treated metal member, and method for producing metal-resin composite
    Patent number: 10329453
    Abstract: The coating film-forming composition is a solution of pH 6 to 9 and includes an aromatic compound having an amino group and an aromatic ring in one molecule, a polybasic acid having two or more carboxy groups, and a halide ion. The content of polybasic acid in the coating film-forming composition is 0.05 to 10 times the content of aromatic compound, and the halide ion concentration is 5 to 600 mM. A coating film with excellent adhesion to a resin can be formed on a surface of a metal member by bringing the coating film-forming composition into contact with the surface of the metal member.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: June 25, 2019
    Assignee: MEC COMPANY LTD.
    Inventors: Daisaku Akiyama, Yoichi Sengoku, Itsuro Tomatsu, Masao Okada, Ryoko Mitani, Keisuke Joko, Yasutaka Amitani, Tokuya Satomi, Masaru Takahashi
  • FILM-FORMING COMPOSITION, METHOD FOR PRODUCING SURFACE-TREATED METAL MEMBER, AND METHOD FOR PRODUCING METAL-RESIN COMPOSITE
    Publication number: 20190127606
    Abstract: The coating film-forming composition is a solution of pH 6 to 9 and includes an aromatic compound having an amino group and an aromatic ring in one molecule, a polybasic acid having two or more carboxy groups, and a halide ion. The content of polybasic acid in the coating film-forming composition is 0.05 to 10 times the content of aromatic compound, and the halide ion concentration is 5 to 600 mM. A coating film with excellent adhesion to a resin can be formed on a surface of a metal member by bringing the coating film-forming composition into contact with the surface of the metal member.
    Type: Application
    Filed: March 13, 2017
    Publication date: May 2, 2019
    Applicant: MEC COMPANY LTD.
    Inventors: Daisaku AKIYAMA, Yoichi SENGOKU, Itsuro TOMATSU, Masao OKADA, Ryoko MITANI, Keisuke JOKO, Yasutaka AMITANI, Tokuya SATOMI, Masaru TAKAHASHI