Patents by Inventor Nobuaki Abe

Nobuaki Abe 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: 8675808
    Abstract: A natural-circulation type boiling water reactor includes a plurality of divided chimneys provided above a reactor core and a number of fuel assemblies are charged in the reactor core. The natural-circulation type boiling water reactor is provided with a pressure equalization structure arranged on rectangular-columnar lattice plates of the divided chimneys for equalizing pressures in divided chimney portions so as to equalize the pressures of the divided chimneys with the pressure equalization structure.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: March 18, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuaki Abe, Yutaka Takeuchi, Yukio Takigawa, Mikihide Nakamaru
  • Patent number: 7880773
    Abstract: An imaging device has an image sensor, and a color filter. The color filter is located on the image sensor and has at least four color elements that respectively have different spectral transmission properties. Further, the imaging device has a matrix-selection processor and a color conversion processor. The matrix-selection processor detects the spectral distribution properties of an object that are present in the series of color signals. Then, the matrix-selection processor selects one color matrix appropriate for the detected spectral distribution property from a plurality of color matrices according to the particular spectral distribution properties of a given object. The color-conversion processor generates R, G, and B primary color signals from the series of color signals by a color-conversion process using the selected color matrix.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: February 1, 2011
    Assignee: Hoya Corporation
    Inventor: Nobuaki Abe
  • Patent number: 7864235
    Abstract: An imaging device has an image sensor, and a color filter that is located on said image sensor and has at least four color elements, a signal reading processor that reads at least four series of color signals corresponding to the at least four color elements from said image sensor, and a signal processor that generates primary color signals on the basis of at least one predetermined series of color signals and an adopted series of color signals that is obtained from the remaining series of color signals. The signal processor defines a series of color signals that corresponds to a spectral response distribution curve over wavelength range for which spectral values in the spectral distribution of the object are relatively large, as the adopted series of color signals.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: January 4, 2011
    Assignee: Hoya Corporation
    Inventor: Nobuaki Abe
  • Publication number: 20090297026
    Abstract: The imaging device has an image sensor with a mosaic color filter array composed of three or four color elements. The color elements are arrayed such that each color element is opposite a pixel in said image sensor. The imaging device further has a first interpolate on processor, a color-transform processor, and a second interpolation processor. The first interpolation processor carries out a first interpolation process for generating a series of color signals in each pixel. The first interpolation processor interpolates missing color signals in each pixel on the basis of color signals generated in adjacent pixels. Then, the color-transform processor carries out a color-transform process for generating a series of color-transform signals from the series of color signals in each pixel. The second interpolation processor replaces at least one color-transform signal that is based on a color signal interpolated by the first interpolation process with at least one interpolated color-transform signal.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 3, 2009
    Applicant: HOYA CORPORATION
    Inventor: Nobuaki Abe
  • Publication number: 20090295950
    Abstract: An imaging device has an image sensor with a mosaic color filter array comprising at least four color elements. The color elements are arrayed such that each color element opposite a pixel in the image sensor. The imaging device also has a color-transform processor that generates at least one color-transform signal in each pixel while interpolating missing color signals on the basis of color signals from surrounding pixels; and a color-interpolation processor that generates at least one color-transform signal that does not correspond to an opposing color element in each pixel on the basis of color-transform signals, which are generated over surrounding pixels and correspond to opposing color elements of that surrounding pixel respectively. The color filter array is configured such that al least two color elements that have a correlation with each other with respect to spectrum transmittance characteristics are arrayed alternately in diagonal direction of pixel array.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 3, 2009
    Applicant: HOYA CORPORATION
    Inventor: Nobuaki Abe
  • Publication number: 20090295939
    Abstract: An Imaging device has an Image sensor with a mosaic color filter array comprising three or four color elements. The color elements are arrayed such that each color element is opposite a pixel in said image sensor. The imaging device further has a color-transform a processor that carries out a color-transform process on a color signal in each pixel to generate a single color-transform signal in each pixel; and a color interpolation processor that interpolates at least one missing color-transform signal in each pixel using color-transform signals from surrounding pixels. The color-transform processor interpolates at least one missing color signal in each pixel using color signals generated over adjacent pixels, and multiplies the originally generated color signal and the interpolated color signal by color-transform coefficients to generate the single color-transform signal.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 3, 2009
    Applicant: HOYA CORPORATION
    Inventor: Nobuaki ABE
  • Patent number: 7564602
    Abstract: A color chart for a color adjustment of a color printer and a color monitor attached to an endoscope, has a predetermined number of color cells. The color cells have the same form, and are arranged in one of a grid state and a linear state. Each of the color cells is formed by blending two colors from a group of three colors comprising red, green, and blue, according to a predetermined ratio, in an additive color process. The color cells show a gradation of color such that a color tone of each of the color cells changes continuously in one direction.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: July 21, 2009
    Assignee: Hoya Corporation
    Inventors: Noriko Ota, Shunichi Ito, Nobuaki Abe
  • Publication number: 20090116608
    Abstract: A natural-circulation type boiling water reactor according to the present invention includes a plurality of divided chimneys provided above a reactor core and a number of fuel assemblies are charged in the reactor core. The natural-circulation type boiling water reactor is provided with a pressure equalization structure arranged on rectangular-columnar lattice plates of the divided chimneys at an outlet of the reactor core for equalizing pressures in divided chimney portions so as to equalize the pressures of the divided chimneys with the pressure equalization structure.
    Type: Application
    Filed: August 11, 2006
    Publication date: May 7, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobuaki Abe, Yutaka Takeuchi, Yukio Takigawa, Mikihide Nakamaru
  • Patent number: 7508431
    Abstract: A solid state imaging device that comprises a first, a second, and a third pixel, and a micro lens is provided. The first pixel has a first color filter. The second pixel has a second color filter, of which the color is different from the color of the first color filter. The third pixel has a third color filter, of which the color is different from the colors of the first color filter and the second color filter. The micro lens covers the first, the second, and the third pixels neighboring each other.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: March 24, 2009
    Assignee: Hoya Corporation
    Inventors: Koichi Sato, Nobuaki Abe, Iwao Takemoto
  • Publication number: 20080252738
    Abstract: An imaging device has an image sensor, and a color filter. The color filter is located on the image sensor and has at least four color elements that respectively have different spectral transmission properties. Further, the imaging device has a matrix-selection processor and a color conversion processor. The matrix-selection processor detects the spectral distribution properties of an object that are present in the series of color signals. Then, the matrix-selection processor selects one color matrix appropriate for the detected spectral distribution property from a plurality of color matrices according to the particular spectral distribution properties of a given object. The color-conversion processor generates R, G, and B primary color signals from the series of color signals by a color-conversion process using the selected color matrix.
    Type: Application
    Filed: September 24, 2007
    Publication date: October 16, 2008
    Applicant: c/o PENTAX CORPORATION
    Inventor: Nobuaki ABE
  • Publication number: 20080239099
    Abstract: A camera according has an interchangeable lens unit removably attached to a camera body, and an image-generating processor that generates image data of a subject captured by the lens unit. A memory provided in the lens unit stores distortion data. The distortion data is associated with an approximation function, which represents the correspondence relationship between image height and distortion aberration. The distortion data includes at least one of: coefficient data of the approximation function, and sample data of the image height and the corresponding distortion aberration. Furthermore, the camera has an approximation function processor that defines an approximation function used to process the image data on the basis of the distortion data read from the memory, and a distortion correction processor that carries out distortion correction processing on the image data based on the aberration distortion calculated for each image point by the defined approximation function.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Applicant: PENTAX CORPORATION
    Inventor: Nobuaki ABE
  • Patent number: 7183530
    Abstract: An electronic apparatus with an imaging device has a photographing optical system that forms an object image, an image pick-up device that has a photo-receiving area and generates image-pixel signals from the object image formed on the photo-receiving area. The photo-receiving area is inclined relative to a direction perpendicular to an optical axis by a given angle. The electronic apparatus has an extracting processor that extracts a focused-image from the object image as focused-image data on the basis of the image-pixel signals, a recording processor that records the focused-image data in a memory; and a displaying processor that displays the focused-image on a display in accordance with the focused-image data.
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: February 27, 2007
    Assignee: Pentax Corporation
    Inventor: Nobuaki Abe
  • Publication number: 20060222324
    Abstract: An imaging device has an image sensor, and a color filter that is located on said image sensor and has at least four color elements, a signal reading processor that reads at least four series of color signals corresponding to the at least four color elements from said image sensor, and a signal processor that generates primary color signals on the basis of at least one predetermined series of color signals and an adopted series of color signals that is obtained from the remaining series of color signals. The signal processor defines a series of color signals that corresponds to a spectral response distribution curve over wavelength range for which spectral values in the spectral distribution of the object are relatively large, as the adopted series of color signals.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 5, 2006
    Applicant: PENTAX Corporation
    Inventor: Nobuaki Abe
  • Patent number: 7106341
    Abstract: An image interpolating device comprises a color filter, in which R, G, and B color filter elements are disposed in a checkerboard arrangement, and an imaging device which generates R, G, and B-signals corresponding to the color filter elements. In an interpolation process, the differences between a G-signal of an objective pixel and G-signals of pixels adjacent to the right, left, upper, and lower sides of the objective pixel are checked. For example, if the G-signal of the left side pixel is the closest to that of the objective pixel, a luminance value Y, color difference signals Cb and Cr, and a modified luminance signal YG of the objective pixel are obtained using the R, G, and B-signals of the left side pixel. Regarding the objective pixel, a B-signal is obtained and the R-signal and the G-signal are modified, using the modified luminance value YG, and the color difference signals Cb and Cr.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: September 12, 2006
    Assignee: PENTAX Corporation
    Inventor: Nobuaki Abe
  • Patent number: 7046277
    Abstract: An image interpolating device comprises a color filter, in which R, G, and B color filter elements are disposed in a checkerboard arrangement, and an imaging device which generates R, G, and B-signals corresponding to the color filter elements. In an interpolation process, the differences between a G-signal of an objective pixel and G-signals of pixels adjacent to the right, left, upper, and lower sides of the objective pixel are checked. For example, if the G-signal of the left side pixel is the closest to that of the objective pixel, a luminance value Y, color difference signals Cb and Cr, and a modified luminance signal YG of the objective pixel are obtained using the R, G, and B-signals of the left side pixel. Regarding the objective pixel, a B-signal is obtained and the G-signal is modified, using the modified luminance value YG, and the color difference signals Cb and Cr.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: May 16, 2006
    Assignee: PENTAX Corporation
    Inventor: Nobuaki Abe
  • Publication number: 20050280727
    Abstract: A solid state imaging device that comprises a first, a second, and a third pixel, and a micro lens is provided. The first pixel has a first color filter. The second pixel has a second color filter, of which the color is different from the color of the first color filter. The third pixel has a third color filter, of which the color is different from the colors of the first color filter and the second color filter. The micro lens covers the first, the second, and the third pixels neighboring each other.
    Type: Application
    Filed: June 16, 2005
    Publication date: December 22, 2005
    Applicant: PENTAX Corporation
    Inventors: Koichi Sato, Nobuaki Abe, Iwao Takemoto
  • Patent number: 6963666
    Abstract: A matching device comprises a monitor screen on which first and second images containing a common object are indicated. First, an arbitrary pixel, contained in the first image, is designated as a designating point. Then, four optimum searching pixels are selected from the first image. The optimum searching pixels exist close to the designating point, and have a pixel value more different from the designating point than pixel values of the other pixels around the optimum searching pixels. A candidate point and candidate point surrounding pixels, which correspond to the designating point and the optimum searching pixels, are detected in the second image.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: November 8, 2005
    Assignee: PENTAX Corporation
    Inventor: Nobuaki Abe
  • Patent number: 6959113
    Abstract: An arbitrary-shape image-processing device comprises a CCD by which a two-dimensional image is obtained. The image may be rectangular, and a contour of an image area contained in the image may be a circle. Pixel values contained in the image area are converted to a one-dimensional data array, and are recorded in a recording medium. Further, the numbers of pixels of the vertical and the lateral lengths of the two-dimensional image, the coordinates of the center of the circle of the image area, and the radius of the circle are recorded in the recording medium as shape information. Thus, all of the image data of the two-dimensional image is not recorded in the recording medium, but only the image data contained in the image area and the shape information are recorded.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: October 25, 2005
    Assignee: PENTAX Corporation
    Inventors: Nobuaki Abe, Tetsuya Abe
  • Publication number: 20050145772
    Abstract: An electronic apparatus with an imaging device has a photographing optical system that forms an object image, an image pick-up device that has a photo-receiving area and generates image-pixel signals from the object image formed on the photo-receiving area. The photo-receiving area is inclined relative to a direction perpendicular to an optical axis by a given angle. The electronic apparatus has an extracting processor that extracts a focused-image from the object image as focused-image data on the basis of the image-pixel signals, a recording processor that records the focused-image data in a memory; and a displaying processor that displays the focused-image on a display in accordance with the focused-image data.
    Type: Application
    Filed: January 5, 2005
    Publication date: July 7, 2005
    Applicant: PENTAX Corporation
    Inventor: Nobuaki Abe
  • Patent number: 6900833
    Abstract: An image interpolating device comprises a color filter, in which R, G, and B color filter elements are disposed in a checkerboard arrangement, and an imaging device which generates R, G, and B-signals corresponding to the color filter elements. In an interpolation process, the differences between a G-signal of an objective pixel and G-signals of pixels adjacent to the right, left, upper, and lower sides of the objective pixel are checked. For example, if the G-signal of the left side pixel is the closest to that of the objective pixel, a luminance value Y, a color difference signal Cb, and a modified luminance signal YG of the objective pixel are obtained using the R, G, and B-signals of the left side pixel. A B-signal of the objective pixel is obtained using the modified luminance value YG, and the color difference signal Cb.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: May 31, 2005
    Assignee: PENTAX Corporation
    Inventor: Nobuaki Abe