Patents by Inventor Yasutoshi Tasaka

Yasutoshi Tasaka 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).

  • Liquid crystal display apparatus
    Publication number: 20010010575
    Abstract: A liquid crystal display apparatus includes a vertically aligned liquid crystal layer sealed between the first and second substrates. A first group of electrodes are formed on the first substrate, and a second group of electrodes are formed on the second substrate at staggered positions with respect to the first electrodes, the electrodes extending in the form of linearly elongated strips in a direction parallel to the substrate surfaces. A liquid crystal display apparatus of a transverse electric field drive type is thus provided.
    Type: Application
    Filed: March 2, 2001
    Publication date: August 2, 2001
    Applicant: Fujitsu Limited
    Inventors: Hidefumi Yoshida, Takashi Sasabayashi, Yohei Nakanishi, Yasutoshi Tasaka
  • Liquid crystal display apparatus including a color filter having slits
    Patent number: 6222599
    Abstract: A liquid crystal display apparatus includes a vertically aligned liquid crystal layer sealed between the first and second substrates. A first group of electrodes are formed on the first substrate, and a second group of electrodes are formed on the second substrate at staggered positions with respect to the first electrodes, the electrodes extending in the form of linearly elongated strips in a direction parallel to the substrate surfaces. A liquid crystal display apparatus of a transverse electric field drive type is thus provided.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: April 24, 2001
    Assignee: Fujitsu Limited
    Inventors: Hidefumi Yoshida, Takashi Sasabayashi, Yohei Nakanishi, Yasutoshi Tasaka
  • Active matrix type liquid crystal display panel and projection type display device with light shielding film formed on top of active devices and between pixel electrodes
    Patent number: 5847792
    Abstract: An active matrix type liquid crystal display panel comprises a first substrate having a plurality of active devices, a plurality of scanning bus lines, a plurality of data bus lines, and a plurality of pixel electrodes, a second substrate having opposed electrodes on its surface opposing to the first substrate, a first shielding film formed on top of the active devices and between the pixel electrodes on the first substrate, a second shielding film formed in at least areas opposing to semiconductor regions of the active devices on the second substrate, and liquid crystals sealed between the first substrate and the second substrate.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: December 8, 1998
    Assignee: Fujitsu Limited
    Inventors: Tetsuya Kobayashi, Toshihiro Suzuki, Takeshi Gotoh, Hisashi Yamaguchi, Kazutaka Hanaoka, Yasutoshi Tasaka, Seiji Tanuma, Makoto Ohashi, Takashi Sasabayashi, Yohei Nakanishi