Patents by Inventor Kouta Murasawa

Kouta Murasawa 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: 20220396078
    Abstract: Dot data for a boundary zone between metallic ink and color ink is changed to increase a time difference between a scan for applying the metallic ink and a scan for applying the color ink. With this change, a fusion time of the metallic ink is ensured, and the occurrence of an image defect is suppressed.
    Type: Application
    Filed: June 6, 2022
    Publication date: December 15, 2022
    Inventors: Kouta Murasawa, Kazuya Ogasawara, Fumitaka Goto, Yoshinori Mizoguchi, Masao Kato, Akitoshi Yamada
  • Publication number: 20220358777
    Abstract: An image processing apparatus comprises an execution unit configured to selectively execute, for each pixel in each of a first region, a second region, and an intermediate region, one of a plurality of processes including first processing of generating an output value indicating that a first printing material is applied and a second printing material of a color different from a color of the first printing material is not applied, and second processing of generating an output value indicating that the second printing material is applied.
    Type: Application
    Filed: April 26, 2022
    Publication date: November 10, 2022
    Inventors: Yoshinori MIZOGUCHI, Fumitaka Goto, Akitoshi Yamada, Kouta Murasawa
  • Publication number: 20220250401
    Abstract: A printing apparatus comprises a decision unit configured to decide a ratio of ink application amounts of the fluorescent ink and the other ink respectively in each of the plurality of scans. The decision unit decides the ratio of the ink application amount of the fluorescent ink in each of the plurality of scans so that the amount of the coloring material of the fluorescent ink in a surface of an ink layer of the printing medium is less than the amount of the coloring material of the fluorescent ink in an inside of the ink layer of the printing medium.
    Type: Application
    Filed: February 4, 2022
    Publication date: August 11, 2022
    Inventors: KOUTA MURASAWA, OKINORI TSUCHIYA, HIROMITSU YAMAGUCHI, HIDEKI KUBO
  • Publication number: 20220250395
    Abstract: A printing apparatus comprises a determination unit configured to, in a case where fluorescent ink is used in printing of an image, determine an order of printing by the fluorescent ink and printing by the light emission suppressing ink that suppresses light emission of the fluorescent ink, in the plurality of scans. The determination unit determines the order of the printing by the fluorescent ink and the printing by the light emission suppressing ink such that the fluorescent ink is printed to be in a layer lower than the light emission suppressing ink in a region of a dark portion of the image.
    Type: Application
    Filed: February 9, 2022
    Publication date: August 11, 2022
    Inventors: OKINORI TSUCHIYA, KOUTA MURASAWA, HIROMITSU YAMAGUCHI, HIDEKI KUBO
  • Publication number: 20220253655
    Abstract: An object of the present disclosure is to implement, at a low cost, highly accurate color calibration in a printing apparatus that performs printing using fluorescent ink. One embodiment of the present invention is an image processing apparatus that includes: a processing unit configured to perform processing relating to color calibration in a printing apparatus that prints an image on a printing medium using fluorescent printing material; and an execution unit configured to perform calibration processing of the printing apparatus based on a measured value that is obtained by measuring a patch chart for obtaining information on an amount of application of the fluorescent printing material in the printing apparatus, wherein a patch included in the patch chart is printed with the fluorescent printing material and subtractive color mixture printing material and at least one dot of the subtractive color mixture printing material covers a dot of the fluorescent printing material.
    Type: Application
    Filed: February 4, 2022
    Publication date: August 11, 2022
    Inventors: Seiji Abe, Naoko Baba, Kouta Murasawa, Hiromitsu Yamaguchi, Keiji Kuriyama, Yuki Igarashi, Hiroshi Mori
  • Publication number: 20220250394
    Abstract: When an image is recorded using an ink of a basic color and an ink of a specific color, if an amount of ink applied to a recording medium exceeds an amount receivable by the recording medium, the ink overflows and image quality deteriorates. At this time, ink overflowing can be prevented by reducing an application amount of ink, but color balance may vary. By preferentially reducing an application amount of the ink of the specific color among inks of a plurality of colors that are to be applied to a recording medium, a change in the color balance is suppressed and the ink overflowing is prevented.
    Type: Application
    Filed: February 3, 2022
    Publication date: August 11, 2022
    Inventors: Yoshinori Mizoguchi, Takahisa Akaishi, Yoshinori Kawai, Kouta Murasawa
  • Patent number: 11412107
    Abstract: An image processing apparatus performs predetermined image processing for read data obtained by reading an image on a document by first and second reading sensors arranged so as to have an overlapping area. The predetermined image processing includes color correction processing of converting color signals detected by light receiving elements of the reading sensors into color signals with respect to each of pixels forming read data. Color correction processing for first read data obtained from light receiving elements of the first reading sensor not included in the overlapping area and color correction processing for second read data obtained from light receiving elements of the second reading sensor not included in the overlapping area are performed in accordance with different correction characteristics. By doing this, an image in which image unevenness caused by individual differences of the short reading sensors is reduced can be output.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: August 9, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Okinori Tsuchiya, Kouta Murasawa, Kazuya Ogasawara, Tatsuhiro Yamagata, Yugo Mochizuki, Toshiki Miyazaki, Masao Kato
  • Patent number: 11323576
    Abstract: An image processing apparatus comprises: an obtaining unit that obtains a luminance of an input image having a color reproduction range wider than that of a printing apparatus; a conversion unit that performs, for the input image, conversion processing of obtaining a value included in the color reproduction range of the printing apparatus and obtaining the luminance of the image after the conversion; and a correction unit that corrects the luminance of the input image, wherein the correction unit performs correction of the luminance of the input image based on a conversion characteristic between the obtained luminance and the obtained luminance such that an intensity of the correction becomes higher for a color that is not included in the color reproduction range of the printing apparatus than for a color included in the color reproduction range of the printing apparatus.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: May 3, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidetsugu Kagawa, Shuhei Ogawa, Maya Yazawa, Kouta Murasawa, Tetsuya Suwa
  • Patent number: 11108999
    Abstract: An image processing apparatus, comprises: a detection unit configured to detect a predetermined region of an image from image data; and a correction unit configured to correct a value of luminance in the predetermined region detected by the detection unit. The correction unit corrects a high-frequency value out of a low-frequency value and the high-frequency value obtained from a luminance value of a pixel having a value of luminance higher than a predetermined threshold in the predetermined region so that a high-frequency contrast weakens.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: August 31, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kouta Murasawa, Hidetsugu Kagawa, Shuhei Ogawa, Maya Yazawa
  • Publication number: 20210218865
    Abstract: An image processing apparatus performs predetermined image processing for read data obtained by reading an image on a document by first and second reading sensors arranged so as to have an overlapping area. The predetermined image processing includes color correction processing of converting color signals detected by light receiving elements of the reading sensors into color signals with respect to each of pixels forming read data. Color correction processing for first read data obtained from light receiving elements of the first reading sensor not included in the overlapping area and color correction processing for second read data obtained from light receiving elements of the second reading sensor not included in the overlapping area are performed in accordance with different correction characteristics. By doing this, an image in which image unevenness caused by individual differences of the short reading sensors is reduced can be output.
    Type: Application
    Filed: December 8, 2020
    Publication date: July 15, 2021
    Inventors: Okinori TSUCHIYA, Kouta MURASAWA, Kazuya OGASAWARA, Tatsuhiro YAMAGATA, Yugo MOCHIZUKI, Toshiki MIYAZAKI, Masao KATO
  • Patent number: 11057528
    Abstract: An information processing apparatus performs processing for putting a width of a line in an output in a case where printing is performed by a first printing apparatus based on print data including a line close to a width of a line in an output in a case where printing is performed by a second printing apparatus based on the print data. A first acquisition unit is configured to acquire first information relating to an output in a case where printed matter including a plurality of line width detection images is printed by the second printing apparatus.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: July 6, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kouta Murasawa, Okinori Tsuchiya, Yugo Mochizuki, Tatsuhiro Yamagata, Toshiki Miyazaki, Masao Kato
  • Patent number: 11017276
    Abstract: An information processing apparatus processes image information printed by a printing apparatus. The information processing apparatus includes a data obtaining unit to obtain print data for printing a line-width detection image including first multiple patches. Each of the first multiple patches includes multiple lines at substantially equal intervals in a first direction, each line having a first width in the first direction and extending in a second direction intersecting the first. The first multiple patches include first and second patches. A first substantially equal interval between a first plurality of lines in the first patch differs from a second substantially equal interval between a second plurality of lines in the second. An information obtaining unit obtains information on a print result of the printed line-width detection image. A correction unit corrects widths of lines in the first direction included in an image to be printed based on the obtained information.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: May 25, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yugo Mochizuki, Okinori Tsuchiya, Tatsuhiro Yamagata, Kouta Murasawa, Kazuya Ogasawara, Toshiki Miyazaki, Masao Kato
  • Patent number: 11017277
    Abstract: An object is to reduce a difference between a target line width and a width of a line that is printed by a printing apparatus by correcting the line width in accordance with color information indicating a color of the line in a case where an image is printed by the printing apparatus based on image data including the line based on print data. The present disclosure is an image processing apparatus having an acquisition unit configured to acquire a drawing command in which a color and a line width of a line are specified, a determination unit configured to determine a correction amount for correcting the line width specified in the drawing command based on the color of the line specified in the drawing command, and a correction unit configured to correct the line width specified in the drawing command in accordance with the correction amount.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: May 25, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuhiro Yamagata, Okinori Tsuchiya, Yugo Mochizuki, Kouta Murasawa, Kazuya Ogasawara, Toshiki Miyazaki, Masao Kato
  • Patent number: 10944890
    Abstract: An information processing apparatus includes a first acquisition unit to acquire a first color reproduction characteristic indicating first color reproduction color values that indicate a color obtained by reproducing color values by a first printing apparatus, a second acquisition unit to acquire a second color reproduction characteristic indicating second reproduction color values that indicate a color obtained by reproducing color values by a second printing apparatus, a first generation unit to generate color matching information when color matching is performed between the first and second printing apparatuses based on the first and the second color reproduction characteristics, a third acquisition unit to acquire a first line width characteristic of the first printing apparatus, a fourth acquisition unit to acquire a second line width characteristic of the second printing apparatus, and a second generation unit to generate line width correction for correcting an input line width for the second printing
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: March 9, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Okinori Tsuchiya, Kouta Murasawa, Tatsuhiro Yamagata, Yugo Mochizuki, Toshiki Miyazaki, Masao Kato
  • Patent number: 10872279
    Abstract: A width in a first direction of a line in image data corresponding to an image to be printed by a printing apparatus is corrected, based on information on a print result of line-width detection images printed based on line-width detection image data in a raster format that is generated by performing rasterization processing on line-width detection image data in a vector format. In the line-width detection image data in the vector format, a distance between centers of the widths in the first direction of two lines adjacent in the first direction in each line-width detection image is an integral multiple of a rasterization resolution in the rasterization processing.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: December 22, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Okinori Tsuchiya, Tatsuhiro Yamagata, Yugo Mochizuki, Kouta Murasawa, Kazuya Ogasawara, Toshiki Miyazaki, Masao Kato
  • Publication number: 20200275065
    Abstract: An image processing apparatus, comprises: a detection unit configured to detect a predetermined region of an image from image data; and a correction unit configured to correct a value of luminance in the predetermined region detected by the detection unit. The correction unit corrects a high-frequency value out of a low-frequency value and the high-frequency value obtained from a luminance value of a pixel having a value of luminance higher than a predetermined threshold in the predetermined region so that a high-frequency contrast weakens.
    Type: Application
    Filed: February 18, 2020
    Publication date: August 27, 2020
    Inventors: Kouta Murasawa, Hidetsugu Kagawa, Shuhei Ogawa, Maya Yazawa
  • Patent number: 10686952
    Abstract: Provided are an image processing apparatus, image processing method, and display apparatus capable of processing a printed image including a color metallic area to be printed by applying color ink containing coloring material and metallic ink containing metal particles on top of each other, into an image displayable on the display apparatus. The image processing apparatus includes: a generation unit that generates preview image data for displaying a preview image on a display apparatus, based on image data for printing a color metallic image including the color metallic area; and a control unit that controls the display apparatus such that the preview image is displayed based on the preview image data generated by the generation unit. A color that expresses the color metallic area in the preview image data is different from a color forming the color metallic area in the image data.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 16, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kouta Murasawa, Yugo Mochizuki, Masao Kato
  • Publication number: 20200106927
    Abstract: An object of the present disclosure is to highly accurately match both colors and line widths between different printing apparatuses. One embodiment of the present invention is an information processing apparatus including: a first acquisition unit configured to acquire a color developing characteristic in image printing by a first printing apparatus; a second acquisition unit configured to acquire a color developing characteristic in image printing by a second printing apparatus; a table generation unit configured to generate a color matching table used in a case where color matching is performed between the first printing apparatus and the second printing apparatus based on the acquired color developing characteristic of the first printing apparatus and the acquired color developing characteristic of the second printing apparatus; a third acquisition unit configured to acquire a line width characteristic of the first printing apparatus.
    Type: Application
    Filed: September 24, 2019
    Publication date: April 2, 2020
    Inventors: Okinori Tsuchiya, Kouta Murasawa, Tatsuhiro Yamagata, Yugo Mochizuki, Toshiki Miyazaki, Masao Kato
  • Publication number: 20200101728
    Abstract: An object of the present disclosure is to enable a user to easily set a line width adjustment value in a case where line widths are matched between different printing apparatuses. One embodiment of the present invention is an information processing apparatus that performs processing for putting a width of a line in an output in a case where printing is performed by a first printing apparatus based on print data including a line close to a width of a line in an output in a case where printing is performed by a second printing apparatus based on the print data and has: a first acquisition unit configured to acquire first information relating to an output in a case where printed matter including a plurality of line width detection images is printed by the second printing apparatus.
    Type: Application
    Filed: September 19, 2019
    Publication date: April 2, 2020
    Inventors: Kouta Murasawa, Okinori Tsuchiya, Yugo Mochizuki, Tatsuhiro Yamagata, Toshiki Miyazaki, Masao Kato
  • Publication number: 20200104659
    Abstract: An object is to reduce a difference between a target line width and a width of a line that is printed by a printing apparatus by correcting the line width in accordance with color information indicating a color of the line in a case where an image is printed by the printing apparatus based on image data including the line based on print data. The present disclosure is an image processing apparatus having an acquisition unit configured to acquire a drawing command in which a color and a line width of a line are specified, a determination unit configured to determine a correction amount for correcting the line width specified in the drawing command based on the color of the line specified in the drawing command, and a correction unit configured to correct the line width specified in the drawing command in accordance with the correction amount.
    Type: Application
    Filed: September 19, 2019
    Publication date: April 2, 2020
    Inventors: Tatsuhiro Yamagata, Okinori Tsuchiya, Yugo Mochizuki, Kouta Murasawa, Kazuya Ogasawara, Toshiki Miyazaki, Masao Kato