Patents by Inventor Toshikazu Kakumu

Toshikazu Kakumu 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).

  • Photosensitive conductor paste
    Patent number: 6214527
    Abstract: There is provided a photosensitive conductor paste comprising at least a polymer, a monomer, a photopolymerization initiator, a conductive powder, a glass frit, and a solvent, the total content of the polymer, the monomer, and the photopolymerization initiator occupying 9 to 30% by weight on a solid basis of the photosensitive conductor paste, the conductive powder occupying 60 to 90% by weight on a solid basis of the photosensitive conductor paste, the glass frit occupying 1 to 10% by weight on a solid basis of the photosensitive conductor paste, the polymer having an alcoholic hydroxyl group and a carboxyl group.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: April 10, 2001
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yozo Kosaka, Katsuhiko Mizuno, Nobuaki Kimura, Toshihiko Takeda, Toshikazu Kakumu