Patents by Inventor Yukifumi Kobayashi

Yukifumi Kobayashi 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: 20210266423
    Abstract: An image reading device includes a first scanner, a second scanner, and circuitry. The first scanner is configured to read a first side of a recording medium. The second scanner is configured to read a second side of the recording medium. The circuitry is configured to generate a first correction value to correct misalignment between the first side and the second side. The circuitry is configured to input a second correction value. The circuitry is configured to correct an image based on the first correction value and the second correction value.
    Type: Application
    Filed: January 14, 2021
    Publication date: August 26, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: TATSUYA ISHII, KOHTAROH ODA, TETSUYA OFUCHI, TOMOAKI SUGA, YUKIFUMI KOBAYASHI
  • Publication number: 20200413083
    Abstract: A detection unit successively selects each of a plurality of blocks of a target image as a target block and detects a motion vector of the target block using a reference image. During motion vector detection, a control unit performs control to partially store the reference image into a storage unit so as to achieve a state where a search range for the target block is stored. The detection unit selects each of the plurality of blocks as the target block in an order of raster scan for each of N regions obtained by dividing the target image in a horizontal direction. When a temporal distance between the target image and the reference image is a second distance that is longer than a first distance, a value of N is large compared to a case where the temporal distance is the first distance.
    Type: Application
    Filed: June 23, 2020
    Publication date: December 31, 2020
    Inventor: Yukifumi Kobayashi
  • Patent number: 10877420
    Abstract: An image forming apparatus includes a conveying device, an image forming device, a reading device, and control circuitry. The conveying device sequentially conveys a plurality of successive recording media that includes a preceding recording medium and a following recording medium. The image forming device forms an image on each of a front surface and a back surface of the preceding recording medium conveyed. The reading device reads an outer shape of the preceding recording medium. The control circuitry calculates an amount of deformation of the preceding recording medium based on the outer shape of the preceding recording medium read. The control circuitry corrects at least one of a front image and a back image based on the amount of deformation calculated, to cause the image forming device to form the front image and the back image on a front surface and a back surface, respectively, of the following recording medium.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: December 29, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Yukifumi Kobayashi
  • Publication number: 20200264546
    Abstract: An image forming apparatus includes a conveying device, an image forming device, a reading device, and control circuitry. The conveying device sequentially conveys a plurality of successive recording media that includes a preceding recording medium and a following recording medium. The image forming device forms an image on each of a front surface and a back surface of the preceding recording medium conveyed. The reading device reads an outer shape of the preceding recording medium. The control circuitry calculates an amount of deformation of the preceding recording medium based on the outer shape of the preceding recording medium read. The control circuitry corrects at least one of a front image and a back image based on the amount of deformation calculated, to cause the image forming device to form the front image and the back image on a front surface and a back surface, respectively, of the following recording medium.
    Type: Application
    Filed: February 5, 2020
    Publication date: August 20, 2020
    Applicant: Ricoh Company, Ltd.
    Inventor: Yukifumi Kobayashi
  • Patent number: 10666970
    Abstract: There is provided an encoding apparatus comprising. An acquiring unit acquires a motion amount of an encoding target image. A selecting unit selects a reference image from a plurality of reference image candidates. An encoding unit encodes the encoding target image by motion-compensated predictive coding in which the selected reference image is referenced. If the motion amount is less than a threshold value, the selecting unit selects a reference image candidate having a larger encoded data amount with priority. If the motion amount is greater than the threshold value, the selecting unit selects a reference image candidate having a closer temporal distance from the encoding target image with priority.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: May 26, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukifumi Kobayashi
  • Patent number: 10630982
    Abstract: An encoding apparatus, comprising a detecting unit configured to detect a feature of an image of each block configuring a still image of an image to be encoded, a setting unit configured to set an image quality mode for encoding the image to be encoded, a deciding unit configured to, for each block, decide a quantization parameter based on the detected feature and the image quality mode, a generating unit configured to, for each block, generate a difference image by performing an intra-prediction, a transformation unit configured to generate transform coefficients by performing an orthogonal transformation on the difference image, and an encoding unit configured to encode the image to be encoded and including a quantizing unit configured to quantize the transform coefficients by using the decided quantization parameter.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: April 21, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukifumi Kobayashi
  • Patent number: 10591851
    Abstract: An image forming apparatus, in which an image forming method is performed, includes an image forming device to form an image on a recording medium, a reading device to scan the recording medium having a mark and generate a scanned image, and circuitry to calculate a correction value to adjust a position of the image to be formed on the recording medium, based on the scanned image. The circuitry calculates the correction value to adjust a position of an image to be formed on a second face of the recording medium based on a first scanned image generated from a first face of the recording medium, within a period from when the first scanned image is generated from the first face to when the image starts to be formed on the second face.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: March 17, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Yukifumi Kobayashi
  • Patent number: 10579006
    Abstract: An image forming apparatus, in which an image forming method is performed, includes an image forming device to form an image on a recording medium, a reading device to scan the recording medium having a position detection mark and generate a scanned image, and circuitry to calculate a plurality of correction values to adjust a position of the image to be formed on the recording medium, based on the scanned image. The circuitry is configured to calculate a first correction value based on a first scanned image generated from a first face of the recording medium, calculate a second correction value based on a second scanned image generated from a second face of the recording medium, and calculate a third correction value to adjust a position of an image to be formed on the second face, based on the first scanned image using the first correction value.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: March 3, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yukifumi Kobayashi, Yuji Karikusa, Kohdai Kurita
  • Patent number: 10545443
    Abstract: An image forming apparatus includes an information obtainer, a memory, a candidate determining unit, and an image forming device. The information obtainer obtains feature information from the target recording medium. The memory stores at least one set of recording medium information regarding the target recording medium associated with the feature information and at least one set of image forming condition information corresponding to the recording medium information. The recording medium information is identification information. The candidate determining unit determines a candidate recording medium information from the recording medium information stored in the memory based on the feature information of the target recording medium obtained by the information obtainer. The image forming device forms an image on the target recording medium based on the image forming condition information in the memory according to the candidate recording medium information determined by the candidate determining unit.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: January 28, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukifumi Kobayashi, Hideyo Makino, Tetsuya Ofuchi, Takayuki Nishimura, Yasuyuki Sekino, Tohru Matsumoto, Noriaki Takenaga, Satoshi Nakayama
  • Publication number: 20190343489
    Abstract: An ultrasound diagnosis apparatus includes a processing circuitry. The processing circuitry is configured to perform a two-dimensional ultrasound scan on a subject via an ultrasound probe. The processing circuitry is configured to generate two-dimensional ultrasound image data on the basis of echo data acquired by the two-dimensional ultrasound scan. The processing circuitry is configured to reconstruct two-dimensional medical image data from three-dimensional medical image data of the subject, on the basis of position information of the two-dimensional ultrasound image data in a first coordinate space specified from detected position information of the ultrasound probe and a correspondence relationship obtained in advance between a second coordinate space to which the three-dimensional medical image data belongs and the first coordinate space.
    Type: Application
    Filed: May 8, 2019
    Publication date: November 14, 2019
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Satoshi Matsunaga, Yukifumi Kobayashi
  • Patent number: 10419775
    Abstract: A moving image encoding apparatus comprising, an encoding unit, a decoding unit, a filter unit and an offset processing unit wherein the encoding unit performs predictive encoding based on a decoded image having undergone an offset processing and the offset processing unit selects and executes a first offset processing for a low-frequency component image when an image of the block has a feature associated with the low-frequency component image in accordance with a feature of an image of a processing target block, and selects and executes a second offset processing for a high-frequency component image when an image of the block does not have a feature associated with the low-frequency component image.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: September 17, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukifumi Kobayashi
  • Publication number: 20190171154
    Abstract: An image forming apparatus, in which an image forming method is performed, includes an image forming device to form an image on a recording medium, a reading device to scan the recording medium having a position detection mark and generate a scanned image, and circuitry to calculate a plurality of correction values to adjust a position of the image to be formed on the recording medium, based on the scanned image. The circuitry is configured to calculate a first correction value based on a first scanned image generated from a first face of the recording medium, calculate a second correction value based on a second scanned image generated from a second face of the recording medium, and calculate a third correction value to adjust a position of an image to be formed on the second face, based on the first scanned image using the first correction value.
    Type: Application
    Filed: September 25, 2018
    Publication date: June 6, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Yukifumi KOBAYASHI, Yuji KARIKUSA, Kohdai KURITA
  • Publication number: 20190171137
    Abstract: An image forming apparatus, in which an image forming method is performed, includes an image forming device to form an image on a recording medium, a reading device to scan the recording medium having a mark and generate a scanned image, and circuitry to calculate a correction value to adjust a position of the image to be formed on the recording medium, based on the scanned image. The circuitry calculates the correction value to adjust a position of an image to be formed on a second face of the recording medium based on a first scanned image generated from a first face of the recording medium, within a period from when the first scanned image is generated from the first face to when the image starts to be formed on the second face.
    Type: Application
    Filed: September 24, 2018
    Publication date: June 6, 2019
    Applicant: Ricoh Company, Ltd.
    Inventor: Yukifumi KOBAYASHI
  • Patent number: 10250906
    Abstract: An image processing apparatus comprising a supply unit configured to supply image data one piece of pixel data at a time, and an encoding unit configured to encode the image data supplied by the supply unit, the encoding unit selecting, as prediction pixel data, locally decoded data of one pixel out of n pixels (n is an integer greater than or equal to 2) that were encoded immediately before a pixel to be encoded and have been locally decoded, and encoding a difference between the prediction pixel data and data of the pixel to be encoded, wherein the supply unit supplies pixel data to the encoding unit in a predetermined order according to which all of the n pixels are pixels that are adjacent to the pixel to be encoded.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: April 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukifumi Kobayashi
  • Publication number: 20190090855
    Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes processing circuitry. The processing circuitry acquires first echo data in a first mode, and acquires second echo data in a second mode. The processing circuitry sequentially generates a first image including a B-mode image based on the first echo data in the first mode, and sequentially generates a second image not including a B-mode image based on the second echo data in the second mode. The processing circuitry sequentially generates a third image from pre-acquired volume data. The processing circuitry directs a display to sequentially display the first image and the third image in the first mode, and to sequentially display the second image and the third image in the second mode.
    Type: Application
    Filed: September 28, 2018
    Publication date: March 28, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Yukifumi KOBAYASHI, Koichiro KURITA, Yutaka KOBAYASHI
  • Patent number: 10212298
    Abstract: A sheet discriminator, which is incorporated in an image forming apparatus and an image forming system, includes a sheet loader on which a recording medium is loaded, an information detector including a light emitter to emit light to a surface of the recording medium loaded on the sheet loader and a light receiver to receive the light emitted by the light emitter and detecting information of the recording medium, a sheet distinguisher to distinguish a type of the recording medium based on the information detected by the information detector, and a light emission controller to control activation and stop of the light emitter and activate the light emitter before the information detector starts detection of the information of the recording medium.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: February 19, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tohru Matsumoto, Tetsuya Ofuchi, Takayuki Nishimura, Yukifumi Kobayashi
  • Patent number: 10203641
    Abstract: A sheet discriminator, which can be included in an image forming apparatus, includes an optical information detector, a sheet distinguisher, and a sheet thickness detector. The optical information detector includes a light emitter to emit light to a recording medium and a light receiver to receive the light and detects information of the recording medium. The sheet distinguisher distinguishes a type of the recording medium based on the information detected by the optical information detector. The sheet thickness detector includes a displacement gauge to sandwich the recording medium with an opposing member disposed facing the displacement gauge and to move from an initial position thereof and a displacement detector to detect an amount of displacement of the displacement gauge. The sheet thickness detector detects a thickness of the recording medium based on detection results obtained by the displacement detector.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: February 12, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Noriaki Takenaga, Tohru Matsumoto, Tetsuya Ofuchi, Takayuki Nishimura, Yukifumi Kobayashi, Hideyo Makino, Satoshi Nakayama
  • Publication number: 20180364627
    Abstract: An image forming apparatus includes an information obtainer, a memory, a candidate determining unit, and an image forming device. The information obtainer obtains feature information from the target recording medium. The memory stores at least one set of recording medium information regarding the target recording medium associated with the feature information and at least one set of image forming condition information corresponding to the recording medium information. The recording medium information is identification information. The candidate determining unit determines a candidate recording medium information from the recording medium information stored in the memory based on the feature information of the target recording medium obtained by the information obtainer. The image forming device forms an image on the target recording medium based on the image forming condition information in the memory according to the candidate recording medium information determined by the candidate determining unit.
    Type: Application
    Filed: August 8, 2018
    Publication date: December 20, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Yukifumi KOBAYASHI, Hideyo MAKINO, Tetsuya OFUCHI, Takayuki NISHIMURA, Yasuyuki SEKINO, Tohru MATSUMOTO, Noriaki TAKENAGA, Satoshi NAKAYAMA
  • Patent number: 10073396
    Abstract: An image forming apparatus includes an information obtainer, a memory, a candidate determining unit, and an image forming device. The information obtainer obtains feature information from the target recording medium. The memory stores at least one set of recording medium information regarding the target recording medium associated with the feature information and at least one set of image forming condition information corresponding to the recording medium information. The recording medium information is identification information. The candidate determining unit determines a candidate recording medium information from the recording medium information stored in the memory based on the feature information of the target recording medium obtained by the information obtainer. The image forming device forms an image on the target recording medium based on the image forming condition information in the memory according to the candidate recording medium information determined by the candidate determining unit.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: September 11, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukifumi Kobayashi, Hideyo Makino, Tetsuya Ofuchi, Takayuki Nishimura, Yasuyuki Sekino, Tohru Matsumoto, Noriaki Takenaga, Satoshi Nakayama
  • Publication number: 20180241996
    Abstract: An encoding apparatus, comprising a detecting unit configured to detect a feature of an image of each block configuring a still image of an image to be encoded, a setting unit configured to set an image quality mode for encoding the image to be encoded, a deciding unit configured to, for each block, decide a quantization parameter based on the detected feature and the image quality mode, a generating unit configured to, for each block, generate a difference image by performing an intra-prediction, a transformation unit configured to generate transform coefficients by performing an orthogonal transformation on the difference image, and an encoding unit configured to encode the image to be encoded and including a quantizing unit configured to quantize the transform coefficients by using the decided quantization parameter.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 23, 2018
    Inventor: Yukifumi Kobayashi