Patents by Inventor Masashi Sobue

Masashi Sobue 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 AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20020001762
    Abstract: A color filter comprising a substrate, a shielding layer formed on the substrate and having an opening, color mixing prevention barriers formed on the shielding layer, and colored portions formed between the color mixing prevention barriers, the optical density of the colorants in the colored portions being raised toward the substrate.
    Type: Application
    Filed: December 21, 1999
    Publication date: January 3, 2002
    Inventors: SHOJI SHIBA, HIDEAKI TAKAO, RYUICHI YOKOYAMA, MASASHI SOBUE, TAKESHI OKADA
  • Color filter and method of manufacturing the same
    Patent number: 6309783
    Abstract: A color filter comprising a substrate, a shielding layer formed on the substrate and having an opening, color mixing prevention barriers formed on the shielding layer, and colored portions formed between the color mixing prevention barriers, the optical density of the colorants in the colored portions being raised toward the substrate.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: October 30, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoji Shiba, Hideaki Takao, Ryuichi Yokoyama, Masashi Sobue, Takeshi Okada
  • Color filter manufacturing method, color filter, display apparatus, and apparatus having the display apparatus
    Patent number: 6177214
    Abstract: In a method of manufacturing a color filter, an ink-jet head discharges ink onto a substrate formed on a surface of an ink receiving layer and colors each pixel of the color filter. The ink-jet head discharges ink onto the position of each pixel by using an alignment mark as a reference which is formed on the ink receiving layer.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: January 23, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuichi Yokoyama, Katsuhiko Takano, Hideaki Takao, Masashi Sobue, Shoji Shiba, Takeshi Okada
  • Color filter substrate manufacturing method, color filter substrate manufactured by this manufacturing method, and liquid crystal element using this color filter substrate
    Patent number: 6143450
    Abstract: A color filter substrate manufacturing method includes the steps of forming a black matrix having a plurality of first apertures of the same shape on a support substrate, forming a color filter by an ink jet system, and forming an alignment mark within an effective display region. The alignment mark includes a second aperture different in shape from the first apertures of the black matrix and is used to form the color filter.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: November 7, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Sobue, Hideaki Takao, Ryuichi Yokoyama, Shoji Shiba, Takeshi Okada
  • Production of color filter by forming light-screening layer and irradiating resin layer to achieve ink-accepting property
    Patent number: 6127072
    Abstract: Disclosed herein is a process for producing a color filter substrate, which comprises the steps of forming a resin layer for coloration, which develops an ink-accepting property by irradiation of light, on a base; forming a light-screening layer on the resin layer for coloration; exposing the resin layer for coloration through the light-screening layer as a mask; and applying color inks to the resin layer for coloration.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: October 3, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoji Shiba, Hideaki Takao, Ryuichi Yokoyama, Akio Kashiwazaki, Masashi Sobue, Takeshi Okada