Patents by Inventor Hirofumi Kamosawa

Hirofumi Kamosawa 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).

  • Method of manufacturing a liquid-crystal display element
    Patent number: 6888611
    Abstract: In a liquid-crystal display element each individual liquid-crystal injection area is surrounded by a seal, and the overall liquid-crystal injection area is surrounded by an array substrate and an opposing substrate surrounded by an outer peripheral seal having an aperture and are adhered together, the aperture of the outer peripheral seal being sealed by a hole sealant, and the surface of at least one of the array substrate and the opposing substrate being polished with a polishing material, which is then removed, after which cutting along the aperture is done to separate the individual liquid-crystal injection areas, thereby facilitating the achievement of a thin liquid-crystal display element, while improving the quality and yield thereof.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: May 3, 2005
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Hirofumi Kamosawa, Takeya Shimizu
  • Method of manufacturing a liquid-crystal display element
    Publication number: 20040233366
    Abstract: In a liquid-crystal display element each individual liquid-crystal injection area is surrounded by a seal, and the overall liquid-crystal injection area is surrounded by an array substrate and an opposing substrate surrounded by an outer peripheral seal having an aperture and are adhered together, the aperture of the outer peripheral seal being sealed by a hole sealant, and the surface of at least one of the array substrate and the opposing substrate being polished with a polishing material, which is then removed, after which cutting along the aperture is done to separate the individual liquid-crystal injection areas, thereby facilitating the achievement of a thin liquid-crystal display element, while improving the quality and yield thereof.
    Type: Application
    Filed: June 29, 2004
    Publication date: November 25, 2004
    Applicant: NEC LCD Technologies, Ltd.
    Inventors: Hirofumi Kamosawa, Takeya Shimizu
  • Liquid-crystal display element and method for manufacturing same
    Patent number: 6778249
    Abstract: In a liquid-crystal display element each individual liquid-crystal injection area surrounded by a seal, and the overall liquid-crystal injection area is surrounded by an array substrate and an opposing substrate surrounded by an outer peripheral seal having an aperture and are adhered together, the aperture of the outer peripheral seal being sealed by a hole sealant, and the surface of at least one of the array substrate and the opposing substrate being polished with a polishing material, which is then removed, after which cutting along the aperture is done to separate the individual liquid-crystal injection areas, thereby facilitating the achievement of a thin liquid-crystal display element, while improving the quality and yield thereof.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: August 17, 2004
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Hirofumi Kamosawa, Takeya Shimizu