Patents by Inventor Yoshiko Iida

Yoshiko Iida 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: 20190331026
    Abstract: A gas turbine includes the rotor that has a rotor disk at each of a plurality of stages and a plurality of blades fixed to the respective stages, a casing, the plurality of vanes fixed to the casing, and an annular member fixed to a radially inner side of each of the vanes. The rotor disk has a seal arm. The annular member has an outer opposing portion that radially opposed to a seal arm. The gas turbine further includes a seal fin that protrudes from the outer opposing portion toward the seal arm, a first cavity that is formed in the annular member and extends in a circumferential direction to straddle at least two vanes, a second cavity that is provided on the radially inner side of the first cavity, and a plurality of compressed air discharge paths that connect the first cavity to the second cavity.
    Type: Application
    Filed: April 15, 2019
    Publication date: October 31, 2019
    Inventors: Koichiro IIDA, Yoshiyuki OKABE, Yoshiko OYA
  • Publication number: 20190269881
    Abstract: Provided is an information processing apparatus comprising: a first obtaining unit configured to obtain viewpoint information indicating change of a virtual viewpoint corresponding to a virtual viewpoint video generated on the basis of a plurality of images captured from a plurality of directions with a plurality of image capturing apparatuses; a second obtaining unit configured to obtain condition information indicating a condition associated with the amount of change of a background in the virtual viewpoint video; a determination unit configured to determine whether the viewpoint information obtained by the first obtaining unit satisfies the condition indicated by the condition information obtained by the second obtaining unit; and an output unit configured to output information according to the result of the determination by the determination unit.
    Type: Application
    Filed: February 26, 2019
    Publication date: September 5, 2019
    Inventor: Yoshiko Iida
  • Patent number: 9501842
    Abstract: Provided is an image processing apparatus capable of adjusting a color of an image of an observation target depending on differences between viewing angles. The image processing apparatus obtains a viewing angle of a first observation target and a viewing angle of a second observation target, and then corrects the color of each observation target by using the obtained viewing angles of the first and second observation targets.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: November 22, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Totsuka, Yoshiko Iida, Jun Watanabe
  • Publication number: 20150110398
    Abstract: Provided is an image processing apparatus capable of adjusting a color of an image of an observation target depending on differences between viewing angles. The image processing apparatus obtains a viewing angle of a first observation target and a viewing angle of a second observation target, and then corrects the color of each observation target by using the obtained viewing angles of the first and second observation targets.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 23, 2015
    Inventors: Atsushi Totsuka, Yoshiko Iida, Jun Watanabe
  • Patent number: 8481973
    Abstract: This invention provides a technique for efficiently estimating spectral radiance factors of fluorescence of a sample. To this end, for a sample which contains a fluorescent substance, first spectral reflectance data and second spectral reflectance data are obtained by making two different variable-angle measurements using a general colorimeter under a white light source. Ratios n of the first spectral reflectance data to the second spectral reflectance data in a long-wavelength spectrum range outside a fluorescent spectrum range of the sample are calculated. Then, difference data between spectral reflectance data as results of multiplying the second spectral reflectance data by the ratios n, and the first spectral reflectance data are calculated. The difference data are divided by values obtained by subtracting 1 from the ratios n, thereby calculating spectral reflectances of fluorescence of the sample, that is, spectral radiance factors.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: July 9, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshiko Iida
  • Publication number: 20120043478
    Abstract: This invention provides a technique for efficiently estimating spectral radiance factors of fluorescence of a sample. To this end, for a sample which contains a fluorescent substance, first spectral reflectance data and second spectral reflectance data are obtained by making two different variable-angle measurements using a general colorimeter under a white light source. Ratios n of the first spectral reflectance data to the second spectral reflectance data in a long-wavelength spectrum range outside a fluorescent spectrum range of the sample are calculated. Then, difference data between spectral reflectance data as results of multiplying the second spectral reflectance data by the ratios n, and the first spectral reflectance data are calculated. The difference data are divided by values obtained by subtracting 1 from the ratios n, thereby calculating spectral reflectances of fluorescence of the sample, that is, spectral radiance factors.
    Type: Application
    Filed: August 2, 2011
    Publication date: February 23, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yoshiko Iida
  • Patent number: 7315385
    Abstract: Input and output units using different signal processing systems cannot be connected to a single image input apparatus. On the basis of the signal format of image data acquired by the input unit and the signal format of image data that can be processed by the output unit, the signal format of image data to be supplied from the input unit to the output unit is controlled.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: January 1, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiko Iida, Takeshi Makita, Osamu Yamada
  • Patent number: 7251359
    Abstract: Estimating the spectral distribution of an object requires not only the time of image sensing by a multi-spectrum camera but also, in order to process all band information acquired, large amounts of memories for storing all the band information of all pixels, and the processing time for processing all the band information. In this invention, when the spectral distribution data of a total wavelength region is to be estimated from color data and a plurality of spectral distribution data different in wavelength region, the color data is acquired, and, on the basis of the configuration of spectral distribution data defined in accordance with the acquired color data, spectral distribution data necessary for the estimation is acquired. In this way, the spectral distribution data of the total wavelength region is estimated.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: July 31, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiko Iida, Takeshi Makita, Osamu Yamada
  • Patent number: 7230642
    Abstract: A photographing environmental light spectral distribution detector acquires spectral distribution data of photographing environmental light upon photographing an object image, and an observation environmental light spectral distribution data detector acquires those of environmental light used upon observing a reproduced image. A signal processor converts an image signal photographed by a camera under the photographing environmental light in accordance with the spectral distribution data of respective types of environmental light, generates colorimetric data that an output unit can output, and outputs the colorimetric data to the output unit, thus accurately reproducing the original color of the object while the object is placed under the observation environmental light.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: June 12, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiko Iida, Takeshi Makita, Osamu Yamada
  • Patent number: 7016530
    Abstract: A color reproduction region of an image formation apparatus is to be effectively used and characteristic in lightness, hue and chroma is to be smoothed. In case of creating tables for separating color into color of coloring agent available in the image formation apparatus, a maximum line in the color reproduction region of the image formation apparatus is defined, internal lines in the color reproduction region of the image formation apparatus are defined and the tables are created by performing interpolation processing on the basis of the maximum line and the internal lines.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: March 21, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Saito, Makoto Torigoe, Yoshiko Iida, Tetsuya Suwa
  • Patent number: 6995881
    Abstract: To provide an output image of high quality with no graininess produced. An image processing method for controlling a starting point which produces a black component between vertices showing a plurality of chromatic colors and a vertex showing a black in a reproducible color space of a color output apparatus when a look-up table for converting an input color signal into a plurality of color components including a black component is prepared, which controls the starting point producing said black component based on the value of a complementary color component corresponding to a chromatic color which is inconspicuous in the graininess of a black recording material in an output image.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: February 7, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiko Iida, Kazuhiro Saito
  • Publication number: 20030164968
    Abstract: In order to implement color conversion which makes images output using different recording sheets appear to have the same color appearance, mapping points and mapping parameters used to obtain an output gamut having a shape similar to that of the gamut of an input color space are determined on the basis of input color space information and output gamut information, and a mapping gamut used to convert an input color signal into an output color signal is generated using the mapping points and mapping parameters.
    Type: Application
    Filed: February 18, 2003
    Publication date: September 4, 2003
    Applicant: Canon Kabushiki Kaisha
    Inventor: Yoshiko Iida
  • Publication number: 20020113880
    Abstract: A photographing environmental light spectral distribution detector acquires spectral distribution data of photographing environmental light upon photographing an object image, and an observation environmental light spectral distribution data detector acquires those of environmental light used upon observing a reproduced image. A signal processor converts an image signal photographed by a camera under the photographing environmental light in accordance with the spectral distribution data of respective types of environmental light, generates calorimetric data that an output unit can output, and outputs the colorimetric data to the output unit, thus accurately reproducing the original color of the object while the object is placed under the observation environmental light.
    Type: Application
    Filed: December 12, 2001
    Publication date: August 22, 2002
    Inventors: Yoshiko Iida, Takeshi Makita, Osamu Yamada
  • Publication number: 20020071605
    Abstract: Estimating the spectral distribution of an object requires not only the time of image sensing by a multi-spectrum camera but also, in order to process all band information acquired, large amounts of memories for storing all the band information of all pixels, and the processing time for processing all the band information. In this invention, when the spectral distribution data of a total wavelength region is to be estimated from color data and a plurality of spectral distribution data different in wavelength region, the color data is acquired, and, on the basis of the configuration of spectral distribution data defined in accordance with the acquired color data, spectral distribution data necessary for the estimation is acquired. In this way, the spectral distribution data of the total wavelength region is estimated.
    Type: Application
    Filed: December 10, 2001
    Publication date: June 13, 2002
    Inventors: Yoshiko Iida, Takeshi Makita, Osamu Yamada
  • Publication number: 20020060803
    Abstract: Input and output units using different signal processing systems cannot be connected to a single image input apparatus. On the basis of the signal format of image data acquired by the input unit and the signal format of image data that can be processed by the output unit, the signal format of image data to be supplied from the input unit to the output unit is controlled.
    Type: Application
    Filed: November 16, 2001
    Publication date: May 23, 2002
    Inventors: Yoshiko Iida, Takeshi Makita, Osamu Yamada
  • Publication number: 20020054306
    Abstract: To provide an output image of high quality with no graininess produced. An image processing method for controlling a starting point which produces a black component between vertices showing a plurality of chromatic colors and a vertex showing a black in a reproducible color space of a color output apparatus when a look-up table for converting an input color signal into a plurality of color components including a black component is prepared, which controls the starting point producing said black component based on the value of a complementary color component corresponding to a chromatic color which is inconspicuous in the graininess of a black recording material in an output image.
    Type: Application
    Filed: July 11, 2001
    Publication date: May 9, 2002
    Inventors: Yoshiko Iida, Kazuhiro Saito
  • Publication number: 20020021458
    Abstract: A color reproduction region of an image formation apparatus is to be effectively used and characteristic in lightness, hue and chroma is to be smoothed. In case of creating tables for separating color into color of coloring agent available in the image formation apparatus, a maximum line in the color reproduction region of the image formation apparatus is defined, internal lines in the color reproduction region of the image formation apparatus are defined and the tables are created by performing interpolation processing on the basis of the maximum line and the internal lines.
    Type: Application
    Filed: July 12, 2001
    Publication date: February 21, 2002
    Inventors: Kazuhiro Saito, Makoto Torigoe, Yoshiko Iida, Tetsuya Suwa
  • Patent number: 4780798
    Abstract: A light transmission fiber illuminating device having a transparent body is provided with an opening containing inorganic particles with an illuminated or a silicated property coated with oil. A transparent cap covers up the opening of the transparent body.
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: October 25, 1988
    Assignees: Yumi Saki, Yang Jeong Haw
    Inventor: Yoshiko Iida