Patents by Inventor Yutaka Oikawa

Yutaka Oikawa 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).

  • IMAGE FORMING APPARATUS THAT PERFORMS SHADING CORRECTION TO MAINTAIN PRINT POSITION ACCURACY
    Publication number: 20240152078
    Abstract: An image forming apparatus including an image forming unit, a fixing unit, a reading unit, a reference member, and a controller is described. The image forming unit forms an image and a detection image on a sheet. The detection image is used for detecting geometric characteristics of an image to be formed on a sheet by the image forming unit. The fixing unit fixes the image and the detection image formed by the image forming unit on the sheet. The reading unit reads the detection image on the sheet. The controller adjusts geometric characteristics of the image to be formed on a sheet based on a reading result of the detection image by the reading unit, and controls the reading unit to read the reference member and executes shading correction based on a reading result of the reference member.
    Type: Application
    Filed: January 18, 2024
    Publication date: May 9, 2024
    Inventors: Koji Yumoto, Takashi Yokoya, Toshifumi Oikawa, Yutaka Ando, Akinobu Nishikata, Riki Fukuhara, Yuichiro Oda
  • Image forming apparatus that performs shading correction to maintain print position accuracy
    Patent number: 11934121
    Abstract: An image forming apparatus including an image forming unit, a fixing unit, a reading unit, a reference member, and a controller is described. The image forming unit forms an image and a detection image on a sheet. The detection image is used for detecting geometric characteristics of an image to be formed on a sheet by the image forming unit. The fixing unit fixes the image and the detection image formed by the image forming unit on the sheet. The reading unit reads the detection image on the sheet. The controller adjusts geometric characteristics of the image to be formed on a sheet based on a reading result of the detection image by the reading unit, and controls the reading unit to read the reference member and executes shading correction based on a reading result of the reference member.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: March 19, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Koji Yumoto, Takashi Yokoya, Toshifumi Oikawa, Yutaka Ando, Akinobu Nishikata, Riki Fukuhara, Yuichiro Oda
  • Dump truck
    Patent number: 8814192
    Abstract: A step arrangement of a dump truck includes a third step that leads down in an up-and-down direction of a vehicle body while being gradually directed forward, and a second step that is provided to a lower end of the third step and leads down in the up-and-down direction while being gradually directed from an outer side toward an inner side of the vehicle body. The height of an outer lower portion of the second step is higher than the height of an inner lower portion thereof.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: August 26, 2014
    Assignee: Komatsu Ltd.
    Inventors: Satoshi Tanaka, Kosei Okamoto, Yutaka Oikawa
  • DUMP TRUCK
    Publication number: 20120068432
    Abstract: A step arrangement of a dump truck includes a third step that leads down in an up-and-down direction of a vehicle body while being gradually directed forward, and a second step that is provided to a lower end of the third step and leads down in the up-and-down direction while being gradually directed from an outer side toward an inner side of the vehicle body. The height of an outer lower portion of the second step is higher than the height of an inner lower portion thereof.
    Type: Application
    Filed: June 16, 2010
    Publication date: March 22, 2012
    Applicant: KOMATSU LTD.
    Inventors: Satoshi Tanaka, Kosei Okamoto, Yutaka Oikawa