Patents by Inventor Satoshi Nishiya

Satoshi Nishiya 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).

  • Publication number: 20210191312
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Application
    Filed: March 4, 2021
    Publication date: June 24, 2021
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Patent number: 10996623
    Abstract: A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the cartridge includes (i) a rotatable developing roller for developing a latent image formed on a photosensitive member; (ii) a first drive transmission member capable of receiving a rotational force originated by the main assembly; (iii) a second drive transmission member capable of coupling with the first drive transmission member and capable of transmitting the rotational force received by the first drive transmission member to the developing roller; and (iv) a coupling disconnection member including a force receiving portion capable of receiving the force originated by the main assembly, and an urging portion capable of urging at least one of the first drive transmission member and the second drive transmission member by the force received by the force receiving portion to separate one of the first drive transmission member and the second drive transmission member from the other, thereby disconnecting t
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 4, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya, Kazuhiko Kanno
  • Publication number: 20210088965
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Patent number: 10901365
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: January 26, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Publication number: 20200301355
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 24, 2020
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Publication number: 20200225616
    Abstract: An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.
    Type: Application
    Filed: December 19, 2019
    Publication date: July 16, 2020
    Inventors: Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Satoshi Nishiya, Yosuke Kashiide
  • Patent number: 10712708
    Abstract: A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the cartridge includes (i) a rotatable developing roller for developing a latent image formed on a photosensitive member; (ii) a first drive transmission member capable of receiving a rotational force originated by the main assembly; (iii) a second drive transmission member capable of coupling with the first drive transmission member and capable of transmitting the rotational force received by the first drive transmission member to the developing roller; and (iv) a coupling disconnection member including a force receiving portion capable of receiving the force originated by the main assembly, and an urging portion capable of urging at least one of the first drive transmission member and the second drive transmission member by the force received by the force receiving portion to separate one of the first drive transmission member and the second drive transmission member from the other, thereby disconnecting t
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: July 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya, Kazuhiko Kanno
  • Patent number: 10705480
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: July 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Publication number: 20200125029
    Abstract: A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the cartridge includes (i) a rotatable developing roller for developing a latent image formed on a photosensitive member; (ii) a first drive transmission member capable of receiving a rotational force originated by the main assembly; (iii) a second drive transmission member capable of coupling with the first drive transmission member and capable of transmitting the rotational force received by the first drive transmission member to the developing roller; and (iv) a coupling disconnection member including a force receiving portion capable of receiving the force originated by the main assembly, and an urging portion capable of urging at least one of the first drive transmission member and the second drive transmission member by the force received by the force receiving portion to separate one of the first drive transmission member and the second drive transmission member from the other, thereby disconnecting t
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Inventors: Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya, Kazuhiko Kanno
  • Patent number: 10591868
    Abstract: An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: March 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Satoshi Nishiya, Yosuke Kashiide
  • Publication number: 20190369551
    Abstract: An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 5, 2019
    Inventors: Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Satoshi Nishiya, Yosuke Kashiide
  • Patent number: 10401788
    Abstract: An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: September 3, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Satoshi Nishiya, Yosuke Kashiide
  • Publication number: 20190171157
    Abstract: An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.
    Type: Application
    Filed: October 25, 2018
    Publication date: June 6, 2019
    Inventors: Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Satoshi Nishiya, Yosuke Kashiide
  • Publication number: 20190146410
    Abstract: A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the cartridge includes (i) a rotatable developing roller for developing a latent image formed on a photosensitive member; (ii) a first drive transmission member capable of receiving a rotational force originated by the main assembly; (iii) a second drive transmission member capable of coupling with the first drive transmission member and capable of transmitting the rotational force received by the first drive transmission member to the developing roller; and (iv) a coupling disconnection member including a force receiving portion capable of receiving the force originated by the main assembly, and an urging portion capable of urging at least one of the first drive transmission member and the second drive transmission member by the force received by the force receiving portion to separate one of the first drive transmission member and the second drive transmission member from the other, thereby disconnecting t
    Type: Application
    Filed: January 11, 2019
    Publication date: May 16, 2019
    Inventors: Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya, Kazuhiko Kanno
  • Patent number: 10228652
    Abstract: A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the cartridge includes (i) a rotatable developing roller for developing a latent image formed on a photosensitive member; (ii) a first drive transmission member capable of receiving a rotational force originated by the main assembly; (iii) a second drive transmission member capable of coupling with the first drive transmission member and capable of transmitting the rotational force received by the first drive transmission member to the developing roller; and (iv) a coupling disconnection member including a force receiving portion capable of receiving the force originated by the main assembly, and an urging portion capable of urging at least one of the first drive transmission member and the second drive transmission member by the force received by the force receiving portion to separate one of the first drive transmission member and the second drive transmission member from the other, thereby disconnecting t
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: March 12, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya, Kazuhiko Kanno
  • Publication number: 20190064732
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Application
    Filed: October 26, 2018
    Publication date: February 28, 2019
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Patent number: 10168664
    Abstract: An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 1, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Satoshi Nishiya, Yosuke Kashiide
  • Patent number: 10139777
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: November 27, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Patent number: 10067444
    Abstract: Provided is a remanufacturing method of a developer accommodating unit including a flexible container provided with an opening and configured to accommodate developer, and a frame member configured to accommodate the flexible container. The remanufacturing method includes refilling the developer into the flexible container.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: September 4, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuta Isobe, Takashi Kase, Kouki Yano, Takahiro Ikeda, Yusuke Usui, Shinjiro Toba, Masaaki Sato, Yosuke Kashiide, Satoshi Nishiya, Tatsuya Suzuki, Kohei Matsuda
  • Patent number: 10031442
    Abstract: Provided is a remanufacturing method of a developer accommodating unit including a flexible container provided with an opening and configured to accommodate developer, and a frame member configured to accommodate the flexible container. The remanufacturing method includes refilling the developer into the flexible container.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: July 24, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuta Isobe, Takashi Kase, Kouki Yano, Takahiro Ikeda, Yusuke Usui, Shinjiro Toba, Masaaki Sato, Yosuke Kashiide, Satoshi Nishiya, Tatsuya Suzuki, Kohei Matsuda