Patents by Inventor Shuji Matsushima

Shuji Matsushima 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).

  • Material for color filter overcoat and material for color filter useful for liquid crystal display, process for formation of overcoat and process for formation of color filter
    Patent number: 5236793
    Abstract: The invention provides a material for overcoat on a color filter for liquid crystal display, characterized in that the material comprises a water-soluble photopolymerizable substance, a cationically polymerizable, water-insoluble photopolymerizable substance, a photopolymerization initiator and a precursor of photo-setting catalyst, and a material for a color filter which comprises a mixture of the material for overcoat and a coloring agent.The invention also provides a process for forming an overcoat on a color filter, or for forming a color filter characterized in that the process comprises the steps of applying the material for color filter overcoat or the material for a color filter, subjecting the coating to exposure to light and performing development using an aqueous solution of alkali.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: August 17, 1993
    Assignee: Okuno Chemical Industries Co., Ltd.
    Inventors: Kenichi Nishiwaki, Shuji Matsushima, Kenzo Fukuyoshi, Toyoshi Nishimoto