Patents by Inventor Mika Sumii

Mika Sumii 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
    Patent number: 8693010
    Abstract: An image forming apparatus includes a first image forming unit, a second image forming unit. In combined processing to perform two types of processing including one-sided image formation and two-sided image formation, if the one-sided image formation is performed, an image is formed on one side of the sheet by the second image forming unit.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: April 8, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mika Sumii, Hiroshige Inoue
  • Image forming apparatus featurting a toner container including a plurality of toner conveying members and a toner sensor
    Patent number: 8265496
    Abstract: There is provided an image forming apparatus including a casing in which toner is accommodated, a toner inflow portion that is provided on a side of one of ends in a longitudinal direction of the casing, a first screw that conveys the toner accommodated in the casing from one end toward the other end, a second screw that conveys the toner accommodated in the casing from the other end toward one end, and a sensor in which a detection portion is disposed at a position facing a side face of the casing provided in the longitudinal direction in order to detect an amount of toner accommodated in the casing. The longitudinal direction of the detection portion is located closer to one end than the other end, and a position in a vertical direction of the detection portion partially overlaps at least a toner conveying region of the second screw.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: September 11, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mika Sumii
  • IMAGE FORMING APPARATUS
    Publication number: 20120002228
    Abstract: An image forming apparatus includes a first image forming unit, a second image forming unit. In combined processing to perform two types of processing including one-sided image formation and two-sided image formation, if the one-sided image formation is performed, an image is formed on one side of the sheet by the second image forming unit.
    Type: Application
    Filed: June 21, 2011
    Publication date: January 5, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Mika Sumii, Hiroshige Inoue
  • IMAGE FORMING APPARATUS
    Publication number: 20100021212
    Abstract: There is provided an image forming apparatus including a casing in which toner is accommodated, a toner inflow portion that is provided on a side of one of ends in a longitudinal direction of the casing, a first screw that conveys the toner accommodated in the casing from one end toward the other end, a second screw that conveys the toner accommodated in the casing from the other end toward one end, and a sensor in which a detection portion is disposed at a position facing a side face of the casing provided in the longitudinal direction in order to detect an amount of toner accommodated in the casing. The longitudinal direction of the detection portion is located closer to one end than the other end, and a position in a vertical direction of the detection portion partially overlaps at least a toner conveying region of the second screw.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 28, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Mika Sumii