Patents by Inventor Yasuzumi Taba

Yasuzumi Taba 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: 11332330
    Abstract: A sheet feeding apparatus includes a first detection device that outputs a first signal upon detecting a stacked sheet and outputs a second signal upon detecting no sheet, and a second detection device that outputs a third signal when a sheet stacking member is above a predetermined position and outputs a fourth signal in a case where the stacking member is below the predetermined position A control unit controls movement of sheet stacking member by restricting movement of the stacking member when the second signal is output and the third signal is output when power of the sheet feeding apparatus is turned on. The second detection device includes a switch that emits the third signal while abutting a moving member that moves with the sheet stacking member and emits the fourth signal while being separated from the moving member.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: May 17, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yasuzumi Taba
  • Publication number: 20200148490
    Abstract: A first detection device is configured to output a first signal upon detecting a sheet stacked on a stacking member in a storage portion and to output a second signal upon detecting no sheet. A second detection device is configured to output a third signal in a case where the stacking member is above a predetermined position and to output a fourth signal in a case where the stacking member is below the predetermined position. A packing member is detachably attached to the storage portion. A regulation member is configured to retain the second detection device such that the second detection device outputs the third signal. A control unit is configured to restrict movement of the stacking member in a case where the first detection device outputs the second signal and the second detection device outputs the third signal when power of a sheet feeding apparatus is turned on.
    Type: Application
    Filed: October 22, 2019
    Publication date: May 14, 2020
    Inventor: Yasuzumi Taba
  • Patent number: 9448526
    Abstract: When an operation member is moved in a state in which a cartridge is mounted to an apparatus main body of an image forming apparatus, a cartridge supporting member is rotated away from a transfer member so that the cartridge is rotated and enters a state in which the cartridge is inclined at an angle ?1 with respect to the transfer member, and an exposure device is rotated away from the transfer member and enters a state in which the exposure device is inclined at an angle ?2 higher than the angle ?1 with respect to the transfer member.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: September 20, 2016
    Assignee: Canon Kabushkik Kaisha
    Inventor: Yasuzumi Taba
  • Patent number: 9176466
    Abstract: When an operation member is moved in a state in which a cartridge is mounted to an apparatus main body of an image forming apparatus, a cartridge supporting member is rotated away from a transfer member so that the cartridge is rotated and enters a state in which the cartridge is inclined at an angle ?1 with respect to the transfer member, and an exposure device is rotated away from the transfer member and enters a state in which the exposure device is inclined at an angle ?2 higher than the angle ?1 with respect to the transfer member.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: November 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuzumi Taba
  • Publication number: 20150286184
    Abstract: When an operation member is moved in a state in which a cartridge is mounted to an apparatus main body of an image forming apparatus, a cartridge supporting member is rotated away from a transfer member so that the cartridge is rotated and enters a state in which the cartridge is inclined at an angle ?1 with respect to the transfer member, and an exposure device is rotated away from the transfer member and enters a state in which the exposure device is inclined at an angle ?2 higher than the angle ?1 with respect to the transfer member.
    Type: Application
    Filed: June 16, 2015
    Publication date: October 8, 2015
    Inventor: Yasuzumi Taba
  • Publication number: 20140227004
    Abstract: When an operation member is moved in a state in which a cartridge is mounted to an apparatus main body of an image forming apparatus, a cartridge supporting member is rotated away from a transfer member so that the cartridge is rotated and enters a state in which the cartridge is inclined at an angle ?1 with respect to the transfer member, and an exposure device is rotated away from the transfer member and enters a state in which the exposure device is inclined at an angle ?2 higher than the angle ?1 with respect to the transfer member.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 14, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yasuzumi Taba
  • Patent number: 8688002
    Abstract: An image forming apparatus to which a cartridge having a photosensitive drum is detachably mounted. A cartridge supporting member supports the cartridge mounted to a main body of the apparatus, and an operation member is operated to be moved when the cartridge is mounted. When the operation member is moved in a state in which the cartridge is mounted, the cartridge supporting member is rotated away from the transfer member so that the cartridge is rotated and inclined at an angle ?1 with respect to the transfer member, and an exposure device is rotated away from the transfer member and is inclined at an angle ?2 greater than the angle ?1 with respect to the transfer member, so that the cartridge is allowed to be detachable from the main body of the apparatus.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: April 1, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuzumi Taba
  • Publication number: 20110299885
    Abstract: When an operation member is moved in a state in which a cartridge is mounted to an apparatus main body of an image forming apparatus, a cartridge supporting member is rotated away from a transfer member so that the cartridge is rotated and enters a state in which the cartridge is inclined at an angle ?1 with respect to the transfer member, and an exposure device is rotated away from the transfer member and enters a state in which the exposure device is inclined at an angle ?2 higher than the angle ?1 with respect to the transfer member.
    Type: Application
    Filed: May 24, 2011
    Publication date: December 8, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yasuzumi Taba
  • Patent number: 7922171
    Abstract: A slide cassette is slidably provided in a main cassette of a sheet cassette. When a sheet with a size larger than that of a sheet which may be stored in the main cassette is stored, the slide cassette is sled and moved to extend the sheet cassette. There is provided a fixing portion which may fix the slide cassette and the main cassette in a state in which the sheet cassette is in a shortened or an extended state by sliding the slide cassette. The fixing portion releases the fixing by an operation in which the slide cassette is sled in a shortening direction or extending direction.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: April 12, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Kawamura, Yasuzumi Taba
  • Publication number: 20080179820
    Abstract: A slide cassette is slidably provided in a main cassette of a sheet cassette. When a sheet with a size larger than that of a sheet which may be stored in the main cassette is stored, the slide cassette is sled and moved to extend the sheet cassette. There is provided a fixing portion which may fix the slide cassette and the main cassette in a state in which the sheet cassette is in a shortened or an extended state by sliding the slide cassette. The fixing portion releases the fixing by an operation in which the slide cassette is sled in a shortening direction or extending direction.
    Type: Application
    Filed: January 24, 2008
    Publication date: July 31, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Koji Kawamura, Yasuzumi Taba
  • Patent number: 7347420
    Abstract: A sheet transport apparatus which includes a sheet transport path for transporting a sheet, and a regulation member. The regulation member is provided in the sheet transport path, and is brought into contact with a swelling portion occurring on a surface of an envelope in the event that the envelope is transported as the sheet, such that the swelling portion can be pressed.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: March 25, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinsuke Kobayashi, Michihito Yamazaki, Yasuzumi Taba
  • Patent number: 7177566
    Abstract: An image forming apparatus includes: a conveying unit for conveying a recording material on which an image is to be formed; and a pair of side members provided on both sides of the recording material conveyed by the conveying unit, in which the pair of side members each have a first surface portion and a second surface portion that extends in a direction different from the first surface portion, the first surface portion of one of the pair of side members being opposed to that of the other, and in which the conveying unit is attached to the second surface portion of each of the pair of side members, whereby the maintenance property of the conveying unit for conveying the recording material is improved.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: February 13, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinya Noda, Takeshi Niimura, Ken Murooka, Takaaki Kawade, Hideki Miyazaki, Yasuzumi Taba, Atsushi Oguni, Tatsuo Hamada
  • Patent number: 6909494
    Abstract: A sheet supply portion is disposed in the lowermost portion of a printer so as to be substantially horizontal. A main conveying path for guiding a sheet from a transferring roller to a fixing device is disposed in a substantially vertical direction so as to be along the back of the printer. The guide surface of a sheet delivery guide constituting a conveying path leading from the fixing device to a pair of sheet delivery rollers is a flat surface.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: June 21, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinya Noda, Takaaki Kawade, Ken Murooka, Takeshi Niimura, Tatsuo Hamada, Yasuzumi Taba, Hideki Miyazaki
  • Publication number: 20050069340
    Abstract: An image forming apparatus includes: a conveying unit for conveying a recording material on which an image is to be formed; and a pair of side members provided on both sides of the recording material conveyed by the conveying unit, in which the pair of side members each have a first surface portion and a second surface portion that extends in a direction different from the first surface portion, the first surface portion of one of the pair of side members being opposed to that of the other, and in which the conveying unit is attached to the second surface portion of each of the pair of side members, whereby the maintenance property of the conveying unit for conveying the recording material is improved.
    Type: Application
    Filed: August 30, 2004
    Publication date: March 31, 2005
    Inventors: Shinya Noda, Takeshi Niimura, Ken Murooka, Takaaki Kawade, Hideki Miyazaki, Yasuzumi Taba, Atsushi Oguni, Tatsuo Hamada
  • Publication number: 20040169329
    Abstract: A sheet transport apparatus which includes a sheet transport path for transporting a sheet, and a regulation member. The regulation member is provided in the sheet transport path, and is brought into contact with a swelling portion occurring on a surface of an envelope in the event that the envelope is transported as the sheet, such that the swelling portion can be pressed.
    Type: Application
    Filed: February 20, 2004
    Publication date: September 2, 2004
    Applicant: Canon Kabushiki Kaisha
    Inventors: Shinsuke Kobayashi, Michihito Yamazaki, Yasuzumi Taba
  • Publication number: 20040156031
    Abstract: A sheet supply portion is disposed in the lowermost portion of a printer so as to be substantially horizontal. A main conveying path for guiding a sheet from a transferring roller to a fixing device is disposed in a substantially vertical direction so as to be along the back of the printer. The guide surface of a sheet delivery guide constituting a conveying path leading from the fixing device to a pair of sheet delivery rollers is a flat surface.
    Type: Application
    Filed: February 4, 2004
    Publication date: August 12, 2004
    Applicant: Canon Kabushiki Kaisha
    Inventors: Shinya Noda, Takaaki Kawade, Ken Murooka, Takeshi Niimura, Tatsuo Hamada, Yasuzumi Taba, Hideki Miyazaki
  • Patent number: RE44947
    Abstract: A slide cassette is slidably provided in a main cassette of a sheet cassette. When a sheet with a size larger than that of a sheet which may be stored in the main cassette is stored, the slide cassette is sled and moved to extend the sheet cassette. There is provided a fixing portion which may fix the slide cassette and the main cassette in a state in which the sheet cassette is in a shortened or an extended state by sliding the slide cassette. The fixing portion releases the fixing by an operation in which the slide cassette is sled in a shortening direction or extending direction.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: June 17, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Kawamura, Yasuzumi Taba