Patents by Inventor Naoya Nishida

Naoya Nishida 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: 5185059
    Abstract: An electrode plate structure for a liquid crystal color display is produced by forming a color filter layer of a photosensitive polyamide resin containing a colorant dispersed therein; disposing a protective layer of a photosensitive polyamide resin on the color filter layer; forming an ITO (indium-tin-oxide) film on the protective layer, preferably at an elevated temperature of at most 270.degree. C.; post-annealing the ITO film at a temperature of 200.degree.-300.degree. C. for improving the crystallinity of the ITO film suitable for etching; and selectively etching the ITO film patternwise with an etchant of hydroiodic acid or a hydroiodic acid-ferric chloride aqueous solution mixture to leave an ITO electrode pattern.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: February 9, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoya Nishida, Masaaki Suzuki, Toshifumi Yoshioka
  • Patent number: 5150233
    Abstract: A liquid crystal device if formed by disposing a liquid crystal between a pair of oppositely disposed electrodes, at least one of which has a laminated structure including a first layer of ITO (indium tin oxide), a second layer of Mo (molybdenum) or its alloy, and a third layer of Al (aluminum) or its alloy, disposed in the order named. Because of the Mo-based second layer, the ITO layer is protected during development of a photoresist layer formed on the Al-based third layer even if some pinholes are present in the Al-based third layer. The Mo-based second layer can be etched by an etchant for the Al-based third layer so that the entire process is not complicated because of the provision of the Mo-based second layer.
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: September 22, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Enomoto, Toshifumi Yoshioka, Naoya Nishida
  • Patent number: 5124826
    Abstract: A liquid crystal device comprises two electrode plates and a liquid crystal such as a ferro-electric smectic liquid crystal disposed between the electrode plates. At least one electrode plate is provided with a uniaxial orientation treatment. At least one electrode plate comprises a substrate and transparent stripe electrodes and metal electrodes each disposed along the length of and electrically connected with a transparent stripe electrode formed on a substrate. Each metal electrode is disposed along and forms a protrusion sticking out of at least one longitudinal edge of a transparent stripe electrode.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: June 23, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshifumi Yoshioka, Takashi Enomoto, Naoya Nishida
  • Patent number: 5000545
    Abstract: A liquid crystal device comprises two electrode plates and a liquid crystal such as a ferroelectric smectic liquid crystal disposed between the electrode plates. At least one electrode plate is provided with a uniaxial orientation treatment. At least one electrode plate comprises a substrate and transparent stripe electrodes and metal electrodes each disposed along the length of and electrically connected with a transparent stripe electrode formed on a substrate. Each metal electrode is disposed along and forms a protrusion sticking out of at least one longitudinal edge of a transparent stripe electrode.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: March 19, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshifumi Yoshioka, Takashi Enomoto, Naoya Nishida