Patents by Inventor Tenri Hiratani

Tenri Hiratani 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).

  • Patent number: 4776671
    Abstract: The high-property, high-precision color filter has an active film layer formed on a transparent substrate and comprised of at least one or more of active alumina or active silica, and fine patterns in the form of dot, stripe, and/or other patterns formed on the active film layer by a dye of any desired color being taken up into fine holes in the active film layer, and further an overcoat layer placed on the active film layer and having no affinity to the dye.In the method for manufacture of the color filter, the step of forming the fine patterns comprises mounting a metal mask having specified patterns holes on the active film layer, mounting a transfer sheet having an ink layer containing a dye on top of the active film layer, and subsequent heating in an atmosphere of reduced pressure.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: October 11, 1988
    Assignee: Nissha Printing Co., Ltd.
    Inventors: Takao Sumi, Tenri Hiratani, Yoshihide Inako, Masahiro Nishida