Patents by Inventor Ayako Takagi

Ayako Takagi 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).

  • Publication number: 20070146234
    Abstract: A three-dimensional image display apparatus includes an image display configured to output image light which arrays a plurality of pixels and has polarization, a lens array arranged in front of the image display, configured to function as lens at light which has a 1st polarization direction, and not to function as lens at light which has a 2nd polarization direction differed from the 1st polarization direction, and a birefringent phase modulator placed between the image display and the lens array and configured to rotate a polarization plane of the image light.
    Type: Application
    Filed: March 1, 2007
    Publication date: June 28, 2007
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuki Taira, Yuzo Hirayama, Tatsuo Saishu, Rieko Fukushima, Ayako Takagi
  • Publication number: 20070052729
    Abstract: A two-dimensional image can be displayed in a desired position, a desired aspect ratio of the display image can be maintained, and such an elemental image array as to maximize an interpolating effect can be produced. A producing method of an elemental image array for three-dimensional image display includes: converting the resolution of the two-dimensional image into substantially the same resolution of a three-dimensional image display device; obtaining multipoint images by shifting the position to sample the two-dimensional image after the resolution conversion at regular intervals in the horizontal direction; and rearranging the multipoint images according to the positional relationship between exit pupils and projecting directions.
    Type: Application
    Filed: August 30, 2006
    Publication date: March 8, 2007
    Inventors: Rieko Fukushima, Ayako Takagi, Tatsuo Saishu, Kazuki Taira, Yuzo Hirayama
  • Publication number: 20060256259
    Abstract: It is possible to reduce a crosstalk amount and stray light even if a viewing zone angle is wide or large. A stereoscopic image display apparatus includes: a flat display device and a beam controlling element provided on a front face of the flat display device. The beam controlling element includes: a first lens array having a plurality of lenses, a second lens array having a plurality of lenses, and a third lens array provided between the first lens array and the second lens array and having a plurality of lenses. The third lens array is configured such that each lens thereof on the first lens array side coincides with a corresponding lens thereof on the second lens array, and refractive indexes of the first and the second lens arrays are approximately the same, and a refractive index of the third lens array is different from the refractive indexes of the first and the second lens arrays.
    Type: Application
    Filed: March 17, 2006
    Publication date: November 16, 2006
    Inventors: Ayako Takagi, Kazuki Taira, Rei Hasegawa, Yuko Kizu, Yuzo Hirayama, Rieko Fukushima, Tatsuo Saishu, Hitoshi Kobayashi
  • Publication number: 20050264881
    Abstract: A three-dimensional display apparatus is provided with an optical element including optical apertures arranged opposite a display module and in association with the parallax images. The optical apertures cause the parallax images to be displayed in a near-side region closer to an observer, while causing a three-dimensional image to be displayed in a far-side region located opposite the observer with respect to the display module. When a smooth three-dimensional image is to be displayed in the near-side region, the optical gap between the optical element and the display surface is set longer than a reference distance depending on the position of the three-dimensional image. In order to display a smooth three-dimensional image in the far-side region, the observer sets the optical gap shorter than the reference distance depending on the position of the three-dimensional image.
    Type: Application
    Filed: May 24, 2005
    Publication date: December 1, 2005
    Inventors: Ayako Takagi, Tatsuo Saishu, Kazuki Taira, Yuzo Hirayama
  • Publication number: 20050057807
    Abstract: The embodiment is to make it possible to increase a resolution obtained when a character or a two-dimensional image is displayed. A stereoscopic image display device is provided with a two-dimensional image display device having a plurality of pixels arranged within a display plane; and a ray control section which is provided in front of or behind the display plane and has a plurality of opening portions or a plurality of lenses arranged side by side, for controlling rays from the pixels, a distance z from the ray control section to a two-dimensional character or a two-dimensional image display position satisfying relationships of 0<z<L×D/(1+D)/2 in a projection region and 0<z<L×D/(1?D)/2 in a depth region, wherein L represents a viewing distance, Ip represents a pitch of the opening portions or the lenses, 2? represents a viewing area angle, pp represents the pitch of the pixels, and D is expressed as D = ( l p ) 2 2 ? Lp p ? tan ? ( ? ) .
    Type: Application
    Filed: September 15, 2004
    Publication date: March 17, 2005
    Inventors: Ayako Takagi, Kazuki Taira, Yuzo Hirayama, Rieko Fukushima, Tatsuo Saishu
  • Publication number: 20040222945
    Abstract: A three-dimensional image display apparatus includes an image display configured to output image light which arrays a plurality of pixels and has polarization, a lens array arranged in front of the image display, configured to function as lens at light which has a 1st polarization direction, and not to function as lens at light which has a 2nd polarization direction differed from the 1st polarization direction, and a birefringent phase modulator placed between the image display and the lens array and configured to rotate a polarization plane of the image light.
    Type: Application
    Filed: February 6, 2004
    Publication date: November 11, 2004
    Inventors: Kazuki Taira, Yuzo Hirayama, Tatsuo Saishu, Rieko Fukushima, Ayako Takagi
  • Patent number: 5723908
    Abstract: A multilayer wiring structure comprising a substrate, two line layers, and an interlayer insulating film. The first line layer consists of strip-shaped power/ground lines which extend parallel to one another. The second line layer is located above or below the first line layer, extends substantially parallel to the first line layer. The second line layer consists of strip-shaped signal lines which extend parallel to one another and at an angle to the strip-shaped power/ground lines of the first line layer in a skewed position.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: March 3, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yumi Fuchida, Jun Hanari, Kazuhiro Matsumoto, Junichi Kudo, Kunio Yoshihara, Ayako Takagi