Patents by Inventor Koji Takezoe

Koji Takezoe 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).

  • Positive type photosensitive anionic electrocating composition
    Patent number: 5529882
    Abstract: The present invention provides a positive type photosensitive anionic electrocoating composition having excellent running stability and highly reliable image formability, and a process for pattern formation using said composition. Said composition comprises, as essential components, a resin (A) containing polyethylene glycol or polypropylene glycol chains each having a substituted or unsubstituted phenyl group at the end and a compound (B) containing at least one quinone diazide sulfone unit, and contains carboxyl groups in an amount of 0.2-3 moles per kg (solid content) of the composition.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: June 25, 1996
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Koji Takezoe, Noboru Nakai, Kenji Seko
  • Method of forming printed image
    Patent number: 4904568
    Abstract: Disclosed is a method of forming a printed image, which method comprises coating an electrodeposition coating composition on a plate with a conductive film and for use in a printed circuit to form a photo-sensitive resist film, and exposing the photo-sensitive resist film to light through a pattern mask, followed by development, the surface of said photo-sensitive resist film being colored with a dye.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: February 27, 1990
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Koshio Kondo, Koji Takezoe