Patents by Inventor Akitoshi Yamada

Akitoshi Yamada 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: 11973903
    Abstract: An image processing system comprises: a reading unit configured to optically read a printed material, on which drawing information of an original image is multiplexed, to acquire read image data; an extraction unit configured to extract the drawing information from the read image data acquired by the reading unit; an acquisition unit configured to acquire original image data representing the original image based on the drawing information extracted by the extraction unit; a correction unit configured to compare the read image data with the original image data, and correct the original image data based on a result of the comparison; and a saving unit configured to save, as a result of reading the printed material, the corrected original image data corrected by the correction unit.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: April 30, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akitoshi Yamada, Kentaro Yano
  • Patent number: 11968347
    Abstract: An image processing apparatus comprising: a decision unit configured to decide a first color mapping method to a print color gamut for a first partial original based on a pixel value included in the first partial original and the print color gamut of a print unit and decide a second color mapping method to a print color gamut for a second partial original based on a pixel value included in the second partial original and the print color gamut of the print unit; and a color conversion unit configured to perform color conversion of the first partial original by the first color mapping method decided, and perform color conversion of the second partial original by the second color mapping method decided.
    Type: Grant
    Filed: October 7, 2022
    Date of Patent: April 23, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akitoshi Yamada, Kentaro Yano, Akihiko Nakatani, Takashi Nakamura, Hidetsugu Kagawa, Kouta Murasawa
  • Patent number: 11968343
    Abstract: An image processing apparatus includes a first obtaining unit configured to obtain an original image, a second obtaining unit configured to obtain a first multiplexed image created by embedding first information in the original image by a first method in which a shape of a pattern is changed, a third obtaining unit configured to obtain a second multiplexed image created by embedding second information in the first multiplexed image by a second method in which a density of a pattern is changed, the second information being a different type of information from the first information, and a control unit configured to perform control of outputting print data for a print original by using the second multiplexed image.
    Type: Grant
    Filed: February 14, 2023
    Date of Patent: April 23, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akitoshi Yamada, Hiroyasu Kunieda, Yoichi Kashibuchi, Jun Nagai
  • Publication number: 20240106964
    Abstract: An image processing apparatus obtains image data that is defined as a first color gamut, transforms the image data into image data that is defined as a second color gamut, using color transformation information, and when, as a result of transformation, a first pair of color values included in the image data is transformed into a second pair of color values that have a color difference that is not perceived as different colors, generates second color transformation information such that the first pair of color values is transformed into a third pair of color values that have a color difference that is perceived as different colors as a result of transformation using the second color transformation information. A saturation difference of the third pair of color values is larger than a saturation difference of the second pair of color values.
    Type: Application
    Filed: September 11, 2023
    Publication date: March 28, 2024
    Inventors: TAKASHI NAKAMURA, KOUTA MURASAWA, AKITOSHI YAMADA, AKIHIKO NAKATANI, HIDETSUGU KAGAWA
  • Patent number: 11938503
    Abstract: An ultrafine bubble (UFB)-containing liquid manufacturing apparatus includes a liquid ejecting unit having a thermal energy generating element, a flow path for leading liquid to the thermal energy generating element, a driving unit configured to drive the thermal energy generating element, and an ejection opening. The UFB-containing liquid manufacturing apparatus also includes a collecting unit configured to collect liquid ejected from the ejection opening. The driving unit drives the thermal energy generating element to cause film boiling in liquid led to the flow path and causes liquid containing ultrafine bubbles generated by the film boiling to be ejected from the ejection opening.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: March 26, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Takahashi, Masahiko Kubota, Ikuo Nakazawa, Akitoshi Yamada, Nobuhisa Tanahashi
  • Patent number: 11936835
    Abstract: An image processing apparatus converts a first combination including color signals respectively corresponding to first ink, second ink, and third ink, which are input to be recorded in a first area on a recording medium into a second combination including color signals respectively corresponding to the first ink, the second ink, and the third ink, and converts a third combination including color signals respective corresponding to the first ink, the second ink, and the third ink which are input to be recorded in a second area on the recording medium into a fourth combination including color signals respectively corresponding to the first ink, the second ink, and the third ink, wherein a difference between a color of a first image and a color of a second image is reduced and a difference between a frequency of the first image and a frequency of the second image is reduced.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: March 19, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoei Moribe, Akitoshi Yamada
  • Publication number: 20240046631
    Abstract: A neural network system includes a separable convolution subnetwork. The separable convolution subnetwork includes a plurality of separable convolutional neural network (SCNN) layers arranged in a stack manner in sequence. Each of the plurality of SCNN layers applies a first grouped convolution to an input to the SCNN layer. An input to the first grouped convolution includes a plurality of channels, and the first grouped convolution is a spatial convolution which divides channels of an input to the first grouped convolution into groups in a channel-wise manner, convolves the grouped channels, and couples the convolved channels to generate an output.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 8, 2024
    Inventors: MASAAKI OBAYASHI, AKITOSHI YAMADA, YOSHINORI MIZOGUCHI, HISASHI ISHIKAWA
  • Publication number: 20240040060
    Abstract: An information processing apparatus connected to an image forming unit and a reading unit is provided. The apparatus generates image data based on document data described in a page description language, encodes the document data to be multiplexed on the image data, outputs the image data to the image forming unit, restores the multiplexed document data from the image data read by the reading unit, and saves the image data read by the reading unit and the document data restored by a restoration unit.
    Type: Application
    Filed: October 9, 2023
    Publication date: February 1, 2024
    Inventors: Akitoshi Yamada, Kentaro Yano
  • Publication number: 20240037895
    Abstract: An object of the present disclosure is to maintain density as an area as compared to a conventional technology even in a case where the quantization target is an image of a high-frequency pattern, such as a hatching pattern, with a halftone value to be subjected to an error diffusion process. An embodiment of the present invention is a program for causing a computer to function as an image processing apparatus for quantizing a pixel value of each pixel in an input image, the computer being caused to function as: an adding unit configured to add at least part of a difference between an accumulated pixel value and an applied error value for a pixel of interest to a quantization error value obtained by the quantization; and an error distributing unit configured to diffuse an added error obtained by the adding unit to peripheral pixels around the pixel of interest.
    Type: Application
    Filed: July 12, 2023
    Publication date: February 1, 2024
    Inventors: AKITOSHI YAMADA, SHINICHI MIYAZAKI
  • Patent number: 11889038
    Abstract: Provided is an image processing apparatus for extracting embedded information from a printed document, including: a first obtaining unit configured to obtain a printing method of the printed document; a second obtaining unit capable of obtaining first image data by reading the printed document while applying light to the printed document; a third obtaining unit capable of obtaining second image data by reading the printed document without applying light to the printed document; and an extraction unit configured to extract the embedded information by using at least one of the first image data and the second image data according to the printing method obtained by the first obtaining unit.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: January 30, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyasu Kunieda, Akitoshi Yamada, Yoichi Kashibuchi
  • Publication number: 20240013507
    Abstract: If a correction unit corrects a conversion unit configured to convert a color gamut of input image data into a color gamut of a device configured to output the image data, a generation unit generates image data having undergone color gamut conversion from the input image data using the corrected conversion unit. In the image data having undergone the color gamut conversion by the corrected conversion unit, a color difference in the image data having undergone the color gamut conversion by the conversion unit is expanded.
    Type: Application
    Filed: June 23, 2023
    Publication date: January 11, 2024
    Inventors: KOUTA MURASAWA, TAKASHI NAKAMURA, HIDETSUGU KAGAWA, AKIHIKO NAKATANI, AKITOSHI YAMADA, KENTARO YANO
  • Publication number: 20230419575
    Abstract: An information processing apparatus includes at least one processor, and a memory that stores a program which, when executed by the at least one processor, causes the at least one processor to function as an acceptance unit configured to accept from a user a target impression of a poster image to be created, and a creation unit configured to create the poster image based on the target impression.
    Type: Application
    Filed: June 27, 2023
    Publication date: December 28, 2023
    Inventors: TAKAYUKI YAMADA, KOUTA MURASAWA, KAZUYA OGASAWARA, SHINJIRO HORI, AKITOSHI YAMADA
  • Publication number: 20230412751
    Abstract: A quantization unit executes quantization processing for first print data corresponding to a first scan using a first threshold matrix and a third threshold matrix, and executes the quantization processing for second print data corresponding to a second scan using a second threshold matrix and a fourth threshold matrix, and a first degree that a dot arrangement that is a result of quantization using the third threshold matrix and a dot arrangement that is a result of quantization using the fourth threshold matrix hold an exclusive relationship is smaller than a second degree that a dot arrangement that is a result of quantization using the first threshold matrix and a dot arrangement that is a result of quantization using the second threshold matrix hold the exclusive relationship.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 21, 2023
    Inventors: YOSHINORI MIZOGUCHI, HISASHI ISHIKAWA, AKITOSHI YAMADA
  • Publication number: 20230391106
    Abstract: A data processing apparatus includes a plurality of heat-generating elements configured to apply different heating energies to a print medium in which a plurality of color development layers which develop colors different from each other upon receipt of the different heating energies are laminated. In addition, a printing apparatus includes: an obtaining unit configured to obtain a heat-generating characteristic of each of the plurality of heat-generating elements; and a deriving unit configured to derive a correction value for correcting print data based on a color development heating characteristic of each of the plurality of color development layers and the heat-generating characteristic of each heat-generating element, the print data causing each heat-generating element to generate the heating energy based on image data corresponding to a pixel.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 7, 2023
    Inventors: TOMOKAZU ISHIKAWA, FUMITAKA GOTO, AKITOSHI YAMADA
  • Patent number: 11831834
    Abstract: An information processing apparatus includes a determination unit configured to determine a printing area and a non-printing area in image data, and an execution unit configured to execute first multiplexing processing by changing a U component in a YUV color space with respect to an area determined as a printing area in the image data and to execute second multiplexing processing by changing a Y component in a CMYK color space with respect to an area determined as a non-printing area in the image data.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: November 28, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichi Kashibuchi, Akitoshi Yamada, Hiroyasu Kunieda
  • Patent number: 11818310
    Abstract: Provided is an image processing apparatus for extracting embedded information from a printed document printed by an electrophotographic method, including: a first obtaining unit configured to obtain first image data by reading the printed document while applying light to the printed document; a second obtaining unit configured to obtain second image data by reading the printed document without applying light to the printed document; a determination unit configured to determine whether a high color density region of which density is higher than a predetermined value is present in the printed document; and a decision unit configured to decide which of the first image data and the second image data to set as image data to be used to extract the embedded information, according to the determination made by the determination unit.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: November 14, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akitoshi Yamada, Hiroyasu Kunieda, Yoichi Kashibuchi
  • Patent number: 11818319
    Abstract: An information processing apparatus connected to an image forming unit and a reading unit is provided. The apparatus generates image data based on document data described in a page description language, encodes the document data to be multiplexed on the image data, outputs the image data to the image forming unit, restores the multiplexed document data from the image data read by the reading unit, and saves the image data read by the reading unit and the document data restored by a restoration unit.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: November 14, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akitoshi Yamada, Kentaro Yano
  • Patent number: 11818316
    Abstract: Provided is an image processing apparatus for generating a printed document with specific information embedded therein, including: a first obtaining unit configured to obtain image data to be used in printing; a second obtaining unit configured to obtain the specific information; an acceptance unit configured to accept designation of a printing apparatus for executing printing; an embedding condition determination unit configured to determine a condition for embedding the specific information into the image data according to a type of the accepted printing apparatus; a multiplexed image generation unit configured to generate a multiplexed image by executing embedding of the specific information under the condition determined by the embedding condition determination unit; and a control unit configured to perform control such that the printing apparatus prints the multiplexed image.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: November 14, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akitoshi Yamada, Hiroyasu Kunieda, Yoichi Kashibuchi
  • Patent number: 11806998
    Abstract: An image forming apparatus includes a print head including heating elements for applying a thermal energy to an imaging material, an operation unit configured to operate the plurality of heating elements of the print head by using a first pulse for preheating the color developing layers and a second pulse for developing the colors of the color developing layers, and a generation unit configured to, in a case where a spatial frequency of the image to be recorded based on image data for forming an image on the imaging material is lower than a predetermined frequency, generate the first pulse so that a temperature to be applied to the imaging material by the first pulse is lower than a temperature to be applied to the imaging material in a case where the spatial frequency of the image data is equal to or higher than the predetermined frequency.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: November 7, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomokazu Ishikawa, Fumitaka Goto, Akitoshi Yamada
  • Patent number: 11785164
    Abstract: An object is to provide a copy function that guarantees intensity of embedded information. At the time of copying a printed material, embedded information is extracted from a scanned image obtained by scanning the target printed material. Then, in a case where it is confirmed that the copy-target printed material is an authentic document by the extracted embedded information, the embedded information extracted from the scanned image is reconfigured and printed and output.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: October 10, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyasu Kunieda, Akitoshi Yamada, Yoichi Kashibuchi