Patents by Inventor Hitoshi Nakahara

Hitoshi Nakahara 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: 7928952
    Abstract: An image display device has a display pixel area having plural pixels arranged in a matrix fashion, plural signal lines for supplying display signal voltages to the pixels, and plural pixel selection lines for selecting pixels from among the pixels to be supplied with the display signal voltages. The pixel selection lines include Y-direction selection lines for selecting rows of the pixels arranged in the matrix fashion and X-direction selection lines for selecting columns of the pixels, and the image display device includes a circuit configuration in which the display signal voltages are supplied from the signal lines to only ones of the pixels each having selected simultaneously both of a corresponding one of the Y-direction selection lines and a corresponding one of the X-direction selection lines.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: April 19, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hajime Akimoto, Mitsuru Hiraki, Hitoshi Nakahara, Takashi Akioka, Yoshiyuki Kaneko, Makoto Tsumura, Yoshiro Mikami
  • Publication number: 20080316192
    Abstract: An image display device has a display pixel area having plural pixels arranged in a matrix fashion, plural signal lines for supplying display signal voltages to the pixels, and plural pixel selection lines for selecting pixels from among the pixels to be supplied with the display signal voltages. The pixel selection lines include Y-direction selection lines for selecting rows of the pixels arranged in the matrix fashion and X-direction selection lines for selecting columns of the pixels, and the image display device includes a circuit configuration in which the display signal voltages are supplied from the signal lines to only ones of the pixels each having selected simultaneously both of a corresponding one of the Y-direction selection lines and a corresponding one of the X-direction selection lines.
    Type: Application
    Filed: August 22, 2008
    Publication date: December 25, 2008
    Inventors: Hajime AKIMOTO, Mitsuru Hiraki, Hitoshi Nakahara, Takashi Akioka, Yoshiyuki Kaneko, Makoto Tsumura, Yoshiro Mikami
  • Patent number: 7423623
    Abstract: An image display displays image data on an image display part constructed by a display pixel array. In an image display in which image data input means for inputting image data so that the display pixel array has two neighboring areas having different frame rates (>0) is provided or image data is displayed on an image display part constructed by a display pixel array, there is provided image data input means which can input at least one moving image data and at least one still image data into the image display part at different frame rates (>0). A high precision image display can be realized hardly changing a display pixel rewriting speed. A moving image signal output circuit and a still image signal output circuit output image data to the display pixel array, and they are provided as circuit configurations independent of each other.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: September 9, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Hajime Akimoto, Mitsuru Hiraki, Hitoshi Nakahara, Takashi Akioka, Yoshiyuki Kaneko, Makoto Tsumura, Yoshiro Mikami
  • Publication number: 20050151729
    Abstract: An image display displays image data on an image display part constructed by a display pixel array. In an image display in which image data input means for inputting image data so that the display pixel array has two neighboring areas having different frame rates (>0) is provided or image data is displayed on an image display part constructed by a display pixel array, there is provided image data input means which can input at least one moving image data and at least one still image data into the image display part at different frame rates (>0). A high precision image display can be realized hardly changing a display pixel rewriting speed. A moving image signal output circuit and a still image signal output circuit output image data to the display pixel array, and they are provided as circuit configurations independent of each other.
    Type: Application
    Filed: February 23, 2005
    Publication date: July 14, 2005
    Inventors: Hajime Akimoto, Mitsuru Hiraki, Hitoshi Nakahara, Takashi Akioka, Yoshiyuki Kaneko, Makoto Tsumura, Yoshiro Mikami
  • Publication number: 20020024496
    Abstract: An image display which displays image data on an image display part constructed by a display pixel array, wherein an image data input circuit inputs image data into the image display part by selecting addresses in a row direction and a column direction of the display pixel array so that the display pixel array has two neighboring areas having different frame rates (>0). The display pixel array includes row direction address lines and column direction address lines. Display pixels of the display pixel array each include an AND functional circuit which is connected to one of the row direction address lines and one of the column direction address lines.
    Type: Application
    Filed: October 15, 2001
    Publication date: February 28, 2002
    Inventors: Hajime Akimoto, Mitsuru Hiraki, Hitoshi Nakahara, Takashi Akioka, Yoshiyuki Kaneko, Makoto Tsumura, Yoshiro Mikami
  • Patent number: 6329973
    Abstract: An image display for displaying image data on an image display part constructed by a display pixel array is disclosed. In an image display in which image data input means for inputting image data so that the display pixel array has two neighboring areas having different frame rates (>0) is provided or image data is displayed on an image display part constructed by a display pixel array, there is provided image data input means which can input at least one moving image data and at least one still image data into the image display part at different frame rates (>0). A high precision image display can be realized hardly changing a display pixel rewriting speed.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: December 11, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Hajime Akimoto, Mitsuru Hiraki, Hitoshi Nakahara, Takashi Akioka, Yoshiyuki Kaneko, Makoto Tsumura, Yoshiro Mikami
  • Patent number: 5746826
    Abstract: Utilizing rugged pattern of atomic size present on a crystalline substrate of a semiconductor such as silicon or selenium or the like, a microstructure body is produced on the substrate by forming a layer of a first element of one monolayer or less by arranging at the position of the substrate most stable in energy formed by ruggedness the atoms of the first element such as gold, silver, copper, nickel, palladium, platinum or an element of group IV and then depositing successively atoms of at least one second element of group III, group IV and group V on only at a part of the surface of the substrate on which said layer of one monolayer or less by vapor deposition, sputtering or the like.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: May 5, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Hasegawa, Shigeyuki Hosoki, Makiko Kohno, Masakazu Ichikawa, Hitoshi Nakahara, Toshiyuki Usagawa
  • Patent number: 5563465
    Abstract: An actuator includes piezo electric devices which are installed in contact with a drive head and a driven body which is contact-driven by the drive head. Thus, only one mechanism performs coarse motion and micromotion by forming a gap between the drive head and driven body. The high precision positioning mechanism can be miniaturized and constructed at a low price.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: October 8, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Hitoshi Nakahara, Masakazu Ichikawa, Yuishin Tanaka, Sakae Saitou, Shigeo Moriyama
  • Patent number: 5506481
    Abstract: A device for digital convergence correction of raster distortion correction of a picture displayed on a screen of a display device using a cathode-ray tube, in which scanning lines include a first class of scanning lines, called correction scanning lines, on which correction points are positioned, and a second class of scanning lines, called interpolated scanning lines between the correction scanning lines. The correction points are positioned at intersections of the correction scanning lines and vertical lines. The correction data for the interpolated scanning lines are produced by vertical interpolation from the correction data of a certain number of vertically aligned correction points. Convergence adjustment, however, may be conducted for only part of the correction points, and the correction data of the remaining correction points may be obtained by interpolation.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: April 9, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akira Wada, Kouji Minami, Hitoshi Nakahara, Yoshiki Ono