Patents by Inventor Ryoichi Kawasumi

Ryoichi Kawasumi 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: 11082571
    Abstract: Provided is an input device comprising: a touch panel which receives an operation from a user; an external member having an external surface substantially the same as a surface of the touch panel; and a near field communication unit which is provided near the surrounding of the touch panel and inside of the external member and performs communication with an object to be detected which is brought close to a detection range, wherein a position corresponding to the near field communication unit of the external member projects from the touch panel and is inclined such that the side close to the touch panel is higher than the side distant from the touch panel.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: August 3, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Nakayama, Ryoichi Kawasumi
  • Publication number: 20210232078
    Abstract: Collecting efficiency of UFP by a filter 53 is improved. Therefore, a sheet feeding guide 37 provided between a transfer portion and a fixing portion is provided with an air passing portion 37c in order to form an air passage toward the filter 53.
    Type: Application
    Filed: April 16, 2021
    Publication date: July 29, 2021
    Inventor: Ryoichi Kawasumi
  • Patent number: 11022929
    Abstract: In order to improve collecting efficiency of ultrafine particles (UFPs) by a filter in an image forming apparatus, a sheet feeding guide disposed between a transfer portion and a fixing portion is provided with an air passing portion in order to form an air passage toward the filter.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: June 1, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ryoichi Kawasumi
  • Patent number: 10990059
    Abstract: A metal frame of an image forming apparatus comprising: a first support which supports a image forming unit; a second support which is arranged with an interval from the first support and supports the image forming unit; a third support which connects the first support and the second support to each other; a first sheet metal which is provided in the first support and includes a first plate portion in which a first through-hole is formed and an engaged portion which is adjacent to the first through-hole and is bent and raised in a direction vertical to a flat surface of the first plate portion; a second sheet metal which is provided in the second support and includes a second plate portion in which a second through-hole is formed and a protrusion portion which protrudes in a plate thickness direction of the second plate portion; and a third sheet metal which is provided in the third support, has one end portion inserted into the first through-hole, and includes a third plate portion in which a third throug
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: April 27, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoichi Kawasumi, Takahiro Kobayashi, Ken Swysen
  • Patent number: 10990061
    Abstract: An image forming apparatus includes an image forming portion to form, at a first position, a toner image on a recording material using toner having a parting material, a fixing portion to fix, at a second position, an unfixed toner image formed on the recording material by the image forming portion, and a heat exhausting duct having an inlet between the first and second positions with respect to a recording material feeding direction to discharge air heated by the fixing portion, with the heat exhausting duct being free of a filter at the inlet thereof. In addition, a collection duct has an inlet between the first position and the second position to collect particles resulting from the parting material. The collection duct is provided with a filter at the inlet thereof, and the inlet of the collection duct is integrally molded with the inlet of the heat exhausting duct.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: April 27, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ryoichi Kawasumi
  • Publication number: 20210063945
    Abstract: A metal frame of an image forming apparatus comprising: a first support which supports a image forming unit; a second support which is arranged with an interval from the first support and supports the image forming unit; a third support which connects the first support and the second support to each other; a first sheet metal which is provided in the first support and includes a first plate portion in which a first through-hole is formed and an engaged portion which is adjacent to the first through-hole and is bent and raised in a direction vertical to a flat surface of the first plate portion; a second sheet metal which is provided in the second support and includes a second plate portion in which a second through-hole is formed and a protrusion portion which protrudes in a plate thickness direction of the second plate portion; and a third sheet metal which is provided in the third support, has one end portion inserted into the first through-hole, and includes a third plate portion in which a third throug
    Type: Application
    Filed: August 27, 2020
    Publication date: March 4, 2021
    Inventors: Ryoichi Kawasumi, Takahiro Kobayashi, Ken Swysen
  • Publication number: 20200288026
    Abstract: Provided is an input device comprising: a touch panel which receives an operation from a user; an external member having an external surface substantially the same as a surface of the touch panel; and a near field communication unit which is provided near the surrounding of the touch panel and inside of the external member and performs communication with an object to be detected which is brought close to a detection range, wherein a position corresponding to the near field communication unit of the external member projects from the touch panel and is inclined such that the side close to the touch panel is higher than the side distant from the touch panel.
    Type: Application
    Filed: May 26, 2020
    Publication date: September 10, 2020
    Inventors: Yoshiyuki Nakayama, Ryoichi Kawasumi
  • Patent number: 10701224
    Abstract: Provided is an input device comprising: a touch panel which receives an operation from a user; an external member having an external surface substantially the same as a surface of the touch panel; and a near field communication unit which is provided near the surrounding of the touch panel and inside of the external member and performs communication with an object to be detected which is brought close to a detection range, wherein a position corresponding to the near field communication unit of the external member projects from the touch panel and is inclined such that the side close to the touch panel is higher than the side distant from the touch panel.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: June 30, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Nakayama, Ryoichi Kawasumi
  • Publication number: 20200201239
    Abstract: Ease of exchange of a UFP collecting filter provided opposed to a sheet feeding path between transfer and fixing is improved. Therefore, a duct unit 50 kept in a state of holding the UFP collecting filter is removably and easily mounted to a duct 51.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventor: Ryoichi Kawasumi
  • Publication number: 20200201238
    Abstract: Collecting efficiency of UFP by a filter 53 is improved. Therefore, a sheet feeding guide 37 provided between a transfer portion and a fixing portion is provided with an air passing portion 37c in order to form an air passage toward the filter 53.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventor: Ryoichi Kawasumi
  • Patent number: 10530944
    Abstract: Provided is an input device comprising: a touch panel which receives an operation from a user; an external member having an external surface substantially the same as a surface of the touch panel; and a near field communication unit which is provided near the surrounding of the touch panel and inside of the external member and performs communication with an object to be detected which is brought close to a detection range, wherein a position corresponding to the near field communication unit of the external member projects from the touch panel and is inclined such that the side close to the touch panel is higher than the side distant from the touch panel.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: January 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Nakayama, Ryoichi Kawasumi
  • Patent number: 10474063
    Abstract: An image forming apparatus includes an apparatus body, a photosensitive member unit including a photosensitive member on which an electrostatic latent image is formed, and a developing unit including a developer carrying member configured to carry a developer toward a position for developing the electrostatic latent image formed on the photosensitive member with the developer. A moving mechanism moves a shutter member from a shielding position to an open position in conjunction with pressurization of the developing unit mounted to the apparatus body in a pressurizing direction so that a transition is made from a state in which a developer receiving portion is shielded to a state in which the developer receiving portion is opened after the developing unit is guided in a mounting direction and then mounted to the apparatus body.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: November 12, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Ryoichi Kawasumi
  • Publication number: 20190335046
    Abstract: Provided is an input device comprising: a touch panel which receives an operation from a user; an external member having an external surface substantially the same as a surface of the touch panel; and a near field communication unit which is provided near the surrounding of the touch panel and inside of the external member and performs communication with an object to be detected which is brought close to a detection range, wherein a position corresponding to the near field communication unit of the external member projects from the touch panel and is inclined such that the side close to the touch panel is higher than the side distant from the touch panel.
    Type: Application
    Filed: July 12, 2019
    Publication date: October 31, 2019
    Inventors: Yoshiyuki Nakayama, Ryoichi Kawasumi
  • Publication number: 20190332053
    Abstract: An image forming apparatus includes an image forming portion for forming, at a first position, a toner image on a sheet using toner comprising a parting material; a fixing portion for fixing, at a second position, an unfixed toner image formed on the sheet by the image forming portion; a heat exhausting duct having an inlet between the first position and the second position with respect to a sheet feeding direction to discharge air heated by the fixing portion; and a collection duct having a inlet between the first position and the second position with respect to the sheet feeding direction to collect particles resulting from the parting material and having predetermined particle sizes, wherein the collection duct is integrally molded with the heat exhausting duct.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 31, 2019
    Inventor: Ryoichi Kawasumi
  • Publication number: 20190037089
    Abstract: Provided is an input device comprising: a touch panel which receives an operation from a user; an external member having an external surface substantially the same as a surface of the touch panel; and a near field communication unit which is provided near the surrounding of the touch panel and inside of the external member and performs communication with an object to be detected which is brought close to a detection range, wherein a position corresponding to the near field communication unit of the external member projects from the touch panel and is inclined such that the side close to the touch panel is higher than the side distant from the touch panel.
    Type: Application
    Filed: October 5, 2018
    Publication date: January 31, 2019
    Inventors: Yoshiyuki Nakayama, Ryoichi Kawasumi
  • Patent number: 10148833
    Abstract: Provided is an input device comprising: a touch panel which receives an operation from a user; an external member having an external surface substantially the same as a surface of the touch panel; and a near field communication unit which is provided near the surrounding of the touch panel and inside of the external member and performs communication with an object to be detected which is brought close to a detection range, wherein a position corresponding to the near field communication unit of the external member projects from the touch panel and is inclined such that the side close to the touch panel is higher than the side distant from the touch panel.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: December 4, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Nakayama, Ryoichi Kawasumi
  • Publication number: 20180143566
    Abstract: An image forming apparatus includes: an image bearing member; a developing device developing an electrostatic image formed on the image bearing member with a developer; a replenishing portion replenishing the developer to the developing device; a replenishment port disposed in the developing device and receiving the developer replenished from the replenishing portion; a shutter member disposed in the developing device and opening and closing the replenishment port; a separate/approach mechanism moving the developing device to a first position for forming an image and to a second position farther than the first position from the image bearing member; and a moving mechanism moving the shutter member from a closed position to an opened position in conjunction with a movement of the developing device by the separate/approach mechanism, the shutter member blocking the replenishment port at the closed position, and the shutter member releasing the replenishment port at the opened position.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 24, 2018
    Inventor: Ryoichi Kawasumi
  • Publication number: 20170310836
    Abstract: Provided is an input device comprising: a touch panel which receives an operation from a user; an external member having an external surface substantially the same as a surface of the touch panel; and a near field communication unit which is provided near the surrounding of the touch panel and inside of the external member and performs communication with an object to be detected which is brought close to a detection range, wherein a position corresponding to the near field communication unit of the external member projects from the touch panel and is inclined such that the side close to the touch panel is higher than the side distant from the touch panel.
    Type: Application
    Filed: April 19, 2017
    Publication date: October 26, 2017
    Inventors: Yoshiyuki Nakayama, Ryoichi Kawasumi
  • Patent number: 9606474
    Abstract: A developing device detachably mountable to an image forming apparatus includes a developer carrying member and a developer accommodating container including first and second chambers for circulating developer and a supply opening. An openable mechanism maintains a closed state of a discharge opening in the developer accommodating container before initial drive input into the developing device and opens and closes the discharge opening in interrelation with a mounting and demounting operation of the developing device after initial drive of the developing device. The openable mechanism includes a shutter, a spring member for urging the shutter in a closing direction, a sealing sheet for unsealably sealing the discharge opening and for sealing an initial developer in the accommodating container, and a winding-up shaft for winding up the sealing sheet. The sealing sheet is removed from the discharge opening after the initial drive of the developing device.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: March 28, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Ryoichi Kawasumi
  • Patent number: 9507292
    Abstract: A developing apparatus is detachably mountable to an image forming apparatus and includes a developer container for accommodating a developer, a sealing member configured to unsealably seal the developer container to retain an initial developer therein, and a disconnecting mechanism to disconnect a drive of a driven member to unseal the developer container. The disconnecting mechanism includes a driving train having a first gear engaged with a driving gear configured to drive a feeding member, a worm gear engaged with the first gear, and a second gear configured to drive the driven member, and a holder configured to support the driven train so as to be integrally swingable about a rotational axis of the driving gear while keeping relative positions between the first gear, the worm gear and the second gear, wherein the disconnecting mechanism disengages between the first gear and the driving gear.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: November 29, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Ryoichi Kawasumi