Patents by Inventor Keita Ishiguro

Keita Ishiguro 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: 11861244
    Abstract: A printing system includes a printing device including a thermal head that prints print content on a print medium; and an information processing apparatus that controls the printing device. The information processing apparatus comprises a processor configured to detect, from print image data from a server, a position of a control target portion including a specific portion in a print image corresponding to the print image data. The processor is configured to generate printing control information for printing the control target portion. The processor is configured to transmit the print image data, the position of the control target portion, and the printing control information to the printing device. The printing device executes different printing controls for the control target portion and a portion other than the control target portion based on the print image data, the position of the control target portion, and the printing control information.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 2, 2024
    Assignee: FUJITSU FRONTECH LIMITED
    Inventors: Yasuhiro Morimoto, Makoto Kurihara, Keita Ishiguro, Ryotaro Takamura, Seiichi Ohki
  • Publication number: 20230394902
    Abstract: In a bill handling apparatus 1, a vibration detection sensor 51A to 51H detects a vibration of a field repair unit 3, 4, 6, 7a to 7d, 8, and a determining unit 52 determines whether there is a failure in the field repair unit 3, 4, 6, 7a to 7d, 8 based on the vibration detected by the vibration detection sensor 51A to 51H. For example, the determining unit 52 subjects the vibration detected by the vibration detection sensor 51A to 51H to frequency analysis, and determines that a failure has occurred in the field repair unit 3, 4, 6, 7a to 7d, 8 when a frequency of a frequency component having a maximum amplitude level in an analysis result of the frequency analysis is lower than a reference value.
    Type: Application
    Filed: August 22, 2023
    Publication date: December 7, 2023
    Applicant: FUJITSU FRONTECH LIMITED
    Inventors: Keita ISHIGURO, Rompei SUGAWARA
  • Publication number: 20220179598
    Abstract: A printing system includes a printing device including a thermal head that prints print content on a print medium; and an information processing apparatus that controls the printing device. The information processing apparatus comprises a processor configured to detect, from print image data from a server, a position of a control target portion including a specific portion in a print image corresponding to the print image data. The processor is configured to generate printing control information for printing the control target portion. The processor is configured to transmit the print image data, the position of the control target portion, and the printing control information to the printing device. The printing device executes different printing controls for the control target portion and a portion other than the control target portion based on the print image data, the position of the control target portion, and the printing control information.
    Type: Application
    Filed: February 22, 2022
    Publication date: June 9, 2022
    Applicant: FUJITSU FRONTECH LIMITED
    Inventors: Yasuhiro MORIMOTO, Makoto KURIHARA, Keita ISHIGURO, Ryotaro TAKAMURA, Seiichi OHKI
  • Patent number: 10386758
    Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a sheet discharge unit to stack sheets, an acquisition unit, and a controller. The fixing unit fixes a toner image formed on a sheet by the image forming unit. The acquisition unit acquires information corresponding to a maximum toner application amount per unit area of the formed toner image. The controller controls the number of image formations on the sheets per unit time based on the acquired information. The controller executes a first job with a first number of image formations on the sheets per unit time during a period from an Lth sheet to an Mth sheet in the first job, and executes a second job with a second and smaller number of image formations on the sheets per unit time during the period from the Lth to the Mth sheet in the second job.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: August 20, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keita Ishiguro, Masanobu Tanaka, Suguru Takeuchi, Asuna Fukamachi, Oki Kitagawa, Yasuharu Toratani
  • Patent number: 10274879
    Abstract: An image forming apparatus includes an image forming portion configured to form a toner image on a recording material; an endless belt and a roller which are configured to form a nip therebetween for fixing, on the recording material, the toner image formed by the image forming portion; a pad configured to urge the endless belt from an inside of the endless belt toward the roller; a motor configured to drive the roller; an acquiring portion configured to acquire a starting torque when rotation of the roller is started; and a discriminating portion configured to discriminate a lifetime of the endless belt depending on the starting torque acquired by the acquiring portion.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: April 30, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keita Ishiguro
  • Patent number: 10241455
    Abstract: A fixing device includes first and second rotatable members that form a nip for fixing a toner image on a recording material, and a pressing mechanism that presses one of the first and second rotatable members toward the other. A pressure P1 at a first position, in an upstream side of a center of a recording material feeding direction, and which is a maximum pressure in the nip, an average pressure P0 from the first position to a second position, which is a downstream end of the nip in the recording material feeding direction, a toner melt viscosity M1 at the first position, and a toner melt viscosity M2 at the second position, satisfy: 0.3 MPa?P1?0.6 MPa, 0<P0?0.25 MPa, 1.0×104 Pa·s?M1<1.0×105 Pa·s, and 0.5×102 Pa·s?M2?1.0×103 Pa·s.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: March 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Asuna Fukamachi, Masanobu Tanaka, Suguru Takeuchi, Oki Kitagawa, Yasuharu Toratani, Keita Ishiguro
  • Publication number: 20190025736
    Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a sheet discharge unit to stack sheets, an acquisition unit, and a controller. The fixing unit fixes a toner image formed on a sheet by the image forming unit. The acquisition unit acquires information corresponding to a maximum toner application amount per unit area of the formed toner image. The controller controls the number of image formations on the sheets per unit time based on the acquired information. The controller executes a first job with a first number of image formations on the sheets per unit time during a period from an Lth sheet to an Mth sheet in the first job, and executes a second job with a second and smaller number of image formations on the sheets per unit time during the period from the Lth to the Mth sheet in the second job.
    Type: Application
    Filed: July 3, 2018
    Publication date: January 24, 2019
    Inventors: Keita Ishiguro, Masanobu Tanaka, Suguru Takeuchi, Asuna Fukamachi, Oki Kitagawa, Yasuharu Toratani
  • Publication number: 20180348683
    Abstract: A fixing device includes first and second rotatable members forming a nip for fixing a toner image on a sheet; and a pressing mechanism for pressing one of said first and second rotatable members toward the other. A pressure P1 at a first position in an upstream side of a center in a recording material feeding direction, the pressure P1 is maximum in the nip, an average pressure PO from the first position to a downstream end of the nip in sheet feeding direction, a toner melt viscosity M1 at the first position, and a toner melt viscosity M2 at the second position, satisfy, 0.3 MPa?P1?0.65 MPa 0<P0?0.25 MPa 1.0×104 Pa·s?M1<1.0×105 Pa·s 0.5×102 Pa·s?M2?1.
    Type: Application
    Filed: June 4, 2018
    Publication date: December 6, 2018
    Inventors: Asuna Fukamachi, Masanobu Tanaka, Suguru Takeuchi, Oki Kitagawa, Yasuharu Toratani, Keita Ishiguro
  • Publication number: 20180059593
    Abstract: An image forming apparatus includes an image forming portion configured to form a toner image on a recording material; an endless belt and a roller which are configured to form a nip therebetween for fixing, on the recording material, the toner image formed by the image forming portion; a pad configured to urge the endless belt from an inside of the endless belt toward the roller; a motor configured to drive the roller; an acquiring portion configured to acquire a starting torque when rotation of the roller is started; and a discriminating portion configured to discriminate a lifetime of the endless belt depending on the starting torque acquired by the acquiring portion.
    Type: Application
    Filed: August 22, 2017
    Publication date: March 1, 2018
    Inventor: Keita Ishiguro