Patents by Inventor Yoshitou Hayashida

Yoshitou Hayashida 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).

  • Surface treatment agents for metal films of printed circuit boards
    Publication number: 20050173678
    Abstract: A surface treatment agent is applied onto a metal film of a printed circuit board to form a rust preventive film. The surface treatment agent for metal comprises an aqueous solution comprising an organic acid having a boiling point of 170° C. or higher and one or more compound selected from the group consisting of an imidazole based compound and a benzimidazole based compound.
    Type: Application
    Filed: January 18, 2005
    Publication date: August 11, 2005
    Applicant: TAMURA KAKEN CORPORATION
    Inventors: Ichiro Miura, Kazutaka Nakanami, Yoshitou Hayashida, Takao Ohno