Patents by Inventor Yumiko Ishitaka

Yumiko Ishitaka 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).

  • Color filter substrate for reflective liquid crystal display and reflective liquid crystal display using the same
    Publication number: 20020021388
    Abstract: A color filter substrate for use in a reflective liquid crystal display, and a reflective liquid crystal display using the above-described color filter substrate are provided. The color filter substrate is provided with a substrate, a reflective layer formed on the substrate, and a color filter layer formed on the reflective layer. The color substrate is arranged to oppose another substrate with a sealing material therebetween and a liquid crystal layer is filled in the gap between the two substrates. The color filter layer of the color filter substrate is formed in a region inside the sealing material, which includes at least an effective display area and a margin area which is outside the effective display area and yet part of visible area so as to reduce light reflected at the reflective layer. A reflective liquid crystal display using the above-described color filter substrate is also provided.
    Type: Application
    Filed: December 6, 2000
    Publication date: February 21, 2002
    Applicant: Alps Electric Co., Ltd.
    Inventors: Sadao Nakamura, Masakazu Kobayashi, Takehiko Sone, Manabu Kusano, Yumiko Ishitaka