Patents by Inventor Naito Toshiki

Naito Toshiki 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).

  • Process for producing wiring circuit board
    Patent number: 7572351
    Abstract: The invention provides a process for producing a wiring circuit board, which comprises the steps of: (A) forming a conductor layer of a predetermined pattern on an insulating layer; (B) forming a photosensitive solder resist layer on the insulating layer and the patterned conductor layer formed on the insulating layer; (C) disposing a transparent protective film on the photosensitive solder resist layer; and (D) exposing the photosensitive solder resist layer to a light through the transparent protective film.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: August 11, 2009
    Assignee: Nitto Denko Corporation
    Inventor: Naito Toshiki