Patents by Inventor Masayuki Fujii

Masayuki Fujii 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: 11040409
    Abstract: Provided is a cutting machine that cuts a high-temperature moving object to be cut while moving in synchronization with the movement of the object to be cut, and that is capable of effectively protecting itself from the heat of the object to be cut and effectively utilizing the heat. A cutting machine for cutting a high-temperature moving object to be cut while moving in synchronization with the movement of the object to be cut, comprising: a cutter configured to cut the object to be cut; a movement device configured to move the cutting machine in synchronization with the object to be cut; a water-cooling plate configured to cool the cutting machine; and a thermoelectric power generation device including a thermoelectric element for converting the heat of the object to be cut into electric energy, wherein the water-cooling plate also serves to cool a low-temperature side of the thermoelectric element.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: June 22, 2021
    Assignee: JFE STEEL CORPORATION
    Inventors: Takashi Kuroki, Koichi Tsutsumi, Ikuhiro Sumi, Yoshinobu Kuga, Masayuki Fukami, Yoshiki Fujii
  • Patent number: 10766282
    Abstract: An image forming apparatus includes a conveyance device to convey a recording medium in a first direction and a second direction opposite the first direction; an image forming device; an imaging device; and circuitry to control the image forming apparatus. Controlled by the circuitry, the image forming device forms the colorimetric pattern on the recording medium that has been conveyed in the first direction by a predetermined distance after the marker pattern is formed. Controlled by the circuitry, after the colorimetric pattern is fixed, the circuitry causes the conveyance device to convey the recording medium in the second direction by an amount equivalent to a distance from the marker pattern to an imaging position by the imaging device plus a margin, conveys the recording medium in the first direction until the imaging device detects the marker pattern, and conveys the recording medium in the first direction to a colorimetry position.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: September 8, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Masayuki Fujii, Nobuyuki Satoh, Suguru Masunaga, Satoshi Iwanami
  • Publication number: 20200248953
    Abstract: A network system includes a refrigerator, a terminal, and a server capable of communicating with the refrigerator and the terminal. After pairing between the refrigerator and the terminal is completed, each time a door of the refrigerator is opened/closed, the server sends information to the terminal to notify that the door of the refrigerator is opened/closed, until the number of times of opening the door of the refrigerator reaches a predetermined value.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 6, 2020
    Inventor: MASAYUKI FUJII
  • Publication number: 20200039250
    Abstract: An image forming apparatus includes a printing device to print, on a recording medium, a colorimetric pattern including a plurality of colorimetric patches; an imaging device; a conveyor to convey the recording medium in a conveyance direction; and circuitry. The circuitry causes the printing device to form a plurality of marker patterns on a side of the colorimetric pattern and at predetermined intervals in the conveyance direction so that one of the marker patterns is downstream from a first row of the colorimetric patches in the conveyance direction; causes the conveyor to convey the recording medium to position the colorimetric pattern at a reading position by the imaging device based on a distance between the plurality of marker patterns and the colorimetric pattern in the conveyance direction; and causes the imaging device to read the colorimetric pattern on the recording medium.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 6, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Osamu KIZAKI, Masayuki FUJII, Suguru MASUNAGA
  • Publication number: 20190283469
    Abstract: An image forming apparatus includes a conveyance device to convey a recording medium in a first direction and a second direction opposite the first direction; an image forming device; an imaging device; and circuitry to control the image forming apparatus. Controlled by the circuitry, the image forming device forms the colorimetric pattern on the recording medium that has been conveyed in the first direction by a predetermined distance after the marker pattern is formed. Controlled by the circuitry, after the colorimetric pattern is fixed, the circuitry causes the conveyance device to convey the recording medium in the second direction by an amount equivalent to a distance from the marker pattern to an imaging position by the imaging device plus a margin, conveys the recording medium in the first direction until the imaging device detects the marker pattern, and conveys the recording medium in the first direction to a colorimetry position.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Masayuki Fujii, Nobuyuki Satoh, Suguru Masunaga, Satoshi Iwanami
  • Patent number: 9744785
    Abstract: A medium identification device identifies a type of a recording medium used for image formation. The medium identification device includes: a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: August 29, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Suguru Yokozawa, Nobuyuki Satoh, Mamoru Yorimoto, Kenji Morita, Masayuki Fujii, Daisaku Horikawa
  • Patent number: 9716124
    Abstract: An apparatus includes: a light source; a two-dimensional image sensor that receives reflected light from a subject including specular light of the source and outputs an image of the subject; and an optical member arranged in an optical path of light emitted from the source to the subject. When a specular position of the source in the subject arranged apart from the two-dimensional image sensor by a certain distance is defined as a first specular position, whereas a specular position of the source in the optical member is defined as a second specular position, a relative positional relation of the optical member and the source with respect to the two-dimensional image sensor is determined so that a difference between an incident angle from the source toward the first specular position and an incident angle from the source toward the second specular position is a reference value or more.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: July 25, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Mamoru Yorimoto, Nobuyuki Satoh, Masato Kobayashi, Masayuki Fujii, Hiroshi Matsumoto, Daisaku Horikawa, Suguru Yokozawa, Kenji Morita
  • Patent number: 9549097
    Abstract: An imaging device comprises: a two-dimensional image sensor that includes a plurality of light receiving units capable of reading an output value individually according to a volume of received light thereof; a receiving unit that receives a control signal that specifies an operation mode of the two-dimensional image sensor that is predetermined according to a purpose of using the output value; and a sensor controller that sets, on the basis of the control signal received by the receiving unit, an imaging area representing an area of a light receiving unit that reads the output value from among the light receiving units of the two-dimensional image sensor and controls reading of the output value.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: January 17, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Matsumoto, Nobuyuki Satoh, Mamoru Yorimoto, Masato Kobayashi, Masayuki Fujii, Satoshi Hirata
  • Publication number: 20160243866
    Abstract: A medium identification device identifies a type of a recording medium used for image formation. The medium identification device includes: a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value.
    Type: Application
    Filed: May 3, 2016
    Publication date: August 25, 2016
    Inventors: Suguru YOKOZAWA, Nobuyuki SATOH, Mamoru YORIMOTO, Kenji MORITA, Masayuki FUJII, Daisaku HORIKAWA
  • Patent number: 9370930
    Abstract: A nozzle testing device includes: a two-dimensional image sensor to capture an image of a pattern formed on a recording object by discharging ink from a nozzle row while moving the nozzle row and the recording object relative to each other in a direction orthogonal to the nozzle row; a light source unit provided such that regularly reflected light by the pattern forms a regular reflection area in the image of the pattern captured by the two-dimensional image sensor; and a detection unit to analyze the image to detect discharge failure of the nozzles. The regular reflection area is formed in the image such that a dimension in a direction corresponding to the direction of relative movement between the nozzle row and the recording object is greater than a dimension in a direction orthogonal to the direction corresponding to the direction of relative movement in the image.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: June 21, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Daisaku Horikawa, Nobuyuki Satoh, Mamoru Yorimoto, Kenji Morita, Masayuki Fujii, Suguru Yokozawa, Masahiro Hiranuma, Yuichi Sakurada, Tomohiro Sasa, Masaya Kawarada
  • Patent number: 9367013
    Abstract: An imaging device includes: a housing having an opening in a surface thereof facing a subject; a light source that irradiates the subject with light; a two-dimensional image sensor that captures, from inside of the housing through the opening; an image of the subject illuminated by the light source; an optical member that is disposed between the two-dimensional image sensor and the opening and that transmits light reflected off the subject; and a contamination inspection member that is disposed between the opening and the optical member and that causes inspection light for inspecting contamination on the optical member to be incident upon the two-dimensional image sensor via the optical member.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: June 14, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kenji Morita, Nobuyuki Satoh, Mamoru Yorimoto, Masayuki Fujii, Daisaku Horikawa, Suguru Yokozawa, Masahiro Hiranuma, Masaya Kawarada
  • Patent number: 9358813
    Abstract: A medium identification device identifies a type of a recording medium used for image formation. The medium identification device includes: a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: June 7, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Suguru Yokozawa, Nobuyuki Satoh, Mamoru Yorimoto, Kenji Morita, Masayuki Fujii, Daisaku Horikawa
  • Patent number: 9347873
    Abstract: An image forming apparatus includes a printing unit that prints at least one object image using a color material; a color information acquiring unit that acquires color information of the object image; and a control unit that starts one of colorimetry of the object image using the color information acquired by the color information acquiring unit and color adjustment of the printing unit after a variation amount of color information of the object image measured at different points of time is equal to or smaller than a predetermined threshold.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: May 24, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Masayuki Fujii, Nobuyuki Satoh, Mamoru Yorimoto, Masato Kobayashi, Hiroshi Matsumoto, Daisaku Horikawa, Suguru Yokozawa, Kenji Morita, Yuichi Sakurada, Tomohiro Sasa, Masaya Kawarada
  • Patent number: 9288367
    Abstract: A glossiness determining device includes: a light source; a two-dimensional sensor that receives reflected light containing a specular reflection component of a subject illuminated by the light source, and outputs an image of the subject; and a determining unit that determines glossiness of the subject by using a saturated image, which is the image of the subject output by the two-dimensional sensor and in which pixel values of a partial area are saturated.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: March 15, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Hirata, Nobuyuki Satoh, Yasuyuki Suzuki, Hideaki Suzuki, Satoshi Iwanami, Mamoru Yorimoto, Masayuki Fujii, Masato Kobayashi, Hiroshi Matsumoto
  • Publication number: 20160031250
    Abstract: A medium identification device identifies a type of a recording medium used for image formation. The medium identification device includes: a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value.
    Type: Application
    Filed: July 29, 2015
    Publication date: February 4, 2016
    Inventors: Suguru YOKOZAWA, Nobuyuki SATOH, Mamoru YORIMOTO, Kenji MORITA, Masayuki FUJII, Daisaku HORIKAWA
  • Publication number: 20160004202
    Abstract: An imaging device includes: a housing having an opening in a surface thereof facing a subject; a light source that irradiates the subject with light; a two-dimensional image sensor that captures, from inside of the housing through the opening; an image of the subject illuminated by the light source; an optical member that is disposed between the two-dimensional image sensor and the opening and that transmits light reflected off the subject; and a contamination inspection member that is disposed between the opening and the optical member and that causes inspection light for inspecting contamination on the optical member to be incident upon the two-dimensional image sensor via the optical member.
    Type: Application
    Filed: July 1, 2015
    Publication date: January 7, 2016
    Inventors: Kenji MORITA, Nobuyuki SATOH, Mamoru YORIMOTO, Masayuki FUJII, Daisaku HORIKAWA, Suguru YOKOZAWA, Masahiro HIRANUMA, Masaya KAWARADA
  • Publication number: 20150375498
    Abstract: A nozzle testing device includes: a two-dimensional image sensor to capture an image of a pattern formed on a recording object by discharging ink from a nozzle row while moving the nozzle row and the recording object relative to each other in a direction orthogonal to the nozzle row; a light source unit provided such that regularly reflected light by the pattern forms a regular reflection area in the image of the pattern captured by the two-dimensional image sensor; and a detection unit to analyze the image to detect discharge failure of the nozzles. The regular reflection area is formed in the image such that a dimension in a direction corresponding to the direction of relative movement between the nozzle row and the recording object is greater than a dimension in a direction orthogonal to the direction corresponding to the direction of relative movement in the image.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 31, 2015
    Inventors: Daisaku HORIKAWA, Nobuyuki SATOH, Mamoru YORIMOTO, Kenji MORITA, Masayuki FUJII, Suguru YOKOZAWA, Masahiro HIRANUMA, Yuichi SAKURADA, Tomohiro SASA, Masaya KAWARADA
  • Publication number: 20150248597
    Abstract: An imaging device comprises: a two-dimensional image sensor that includes a plurality of light receiving units capable of reading an output value individually according to a volume of received light thereof; a receiving unit that receives a control signal that specifies an operation mode of the two-dimensional image sensor that is predetermined according to a purpose of using the output value; and a sensor controller that sets, on the basis of the control signal received by the receiving unit, an imaging area representing an area of a light receiving unit that reads the output value from among the light receiving units of the two-dimensional image sensor and controls reading of the output value.
    Type: Application
    Filed: December 9, 2014
    Publication date: September 3, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Hiroshi Matsumoto, Nobuyuki Satoh, Mamoru Yorimoto, Masato Kobayashi, Masayuki Fujii, Satoshi Hirata
  • Patent number: 9057067
    Abstract: A method for transfecting nucleic acid to cell comprising a step for forming a nucleic acid complex by bringing a double-stranded nucleic acid molecule into contact with a nucleic acid carrier having an amino acid sequence of alternating a basic amino acid and a hydrophobic amino acid, which has a peptide chain that forms a ?-sheet structure in which a side chain of a positively charged basic amino acid is disposed on one surface side and a side chain of a hydrophobic amino acid is disposed on the opposite surface side in the presence of the double-stranded nucleic acid molecule having a double helix structure, and by binding the double-stranded nucleic acid molecule and the peptide chain through either one or both of the electrostatic interaction between the side chains of the basic amino acid and phosphate groups and hydrogen bonds between the double stranded-nucleic acid molecule and the peptide chain and a nucleic acid complex used for the same are disclosed.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: June 16, 2015
    Assignee: Kinki University
    Inventor: Masayuki Fujii
  • Publication number: 20150158309
    Abstract: An image forming apparatus includes a printing unit that prints at least one object image using a color material; a color information acquiring unit that acquires color information of the object image; and a control unit that starts one of colorimetry of the object image using the color information acquired by the color information acquiring unit and color adjustment of the printing unit after a variation amount of color information of the object image measured at different points of time is equal to or smaller than a predetermined threshold.
    Type: Application
    Filed: December 8, 2014
    Publication date: June 11, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Masayuki Fujii, Nobuyuki Satoh, Mamoru Yorimoto, Masato Kobayashi, Hiroshi Matsumoto, Daisaku Horikawa, Suguru Yokozawa, Kenji Morita, Yuichi Sakurada, Tomohiro Sasa, Masaya Kawarada