Patents by Inventor Atsushi Takasaka

Atsushi Takasaka 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: 20230372666
    Abstract: A medical device 1 includes a main body driving unit (300) including a plurality of driving sources (M11 to M33), a base unit (200) including a coupling device (21) connected to the main body driving unit, a bendable unit (100) configured to be detachably attached to the base unit, and an operation unit (400) configured to be movable between a fixed position and a detachment position. The base unit includes a plurality of coupling units (21c11 to 21c33). The bendable unit includes a plurality of linear members (W11 to W33). A state where each of the plurality of linear members is fixed by each of the plurality of coupling units and a state where each of the plurality of linear members is unfixed from each of the plurality of coupling units are switched in an interlocked manner with movement of the operation unit.
    Type: Application
    Filed: July 25, 2023
    Publication date: November 23, 2023
    Inventors: RYO IWASAWA, ATSUSHI TAKASAKA, YUSUKE NIIKAWA, TOMIO NOGUCHI, ISAO MATSUOKA
  • Publication number: 20220283047
    Abstract: A force sensor includes a support member, a force receiving member to be displaced with respect to the support member by an action of an external force, and a strain generating member having a scale holding portion and an elastic connection portion connecting the support member and the force receiving member. The force sensor further includes scales each serving as a detection target object and disposed on the elastic connection portion and the scale holding portion, and displacement detection elements mounted on a sensor substrate of the support member to face the scales in a one-to-one correspondence to detect movements of the scales. The force receiving member includes metal, and the strain generating member includes resin.
    Type: Application
    Filed: March 24, 2022
    Publication date: September 8, 2022
    Inventors: Naoya Ogawa, Atsushi Takasaka
  • Patent number: 11209772
    Abstract: A cartridge includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. The cartridge also includes a frame having a bearing configured to rotatably support the cylinder and a regulating wall capable of regulating movement of the coupling member by contacting the coupling member. A spring presses the coupling member to contact the regulating wall, and the bearing encompasses the regulating wall as seen along a rotational axis of the cylinder.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: December 28, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Publication number: 20210165359
    Abstract: A cartridge includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. The cartridge also includes a frame having a bearing configured to rotatably support the cylinder and a regulating wall capable of regulating movement of the coupling member by contacting the coupling member. A spring presses the coupling member to contact the regulating wall, and the bearing encompasses the regulating wall as seen along a rotational axis of the cylinder.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 3, 2021
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Patent number: 10901360
    Abstract: A cartridge includes a coupling member for receiving a rotational force for rotating a developing roller. The cartridge also includes a cylinder including an accommodating portion accommodating at least a part of the coupling member, the cylinder being configured to transmit the rotational force from the coupling member to the developing roller. The cartridge further includes a frame including a bearing configured to rotatably support the cylinder and a regulating wall capable of regulating movement of the coupling member by contacting the coupling member. The bearing encompasses the regulating wall as seen along a rotational axis of the cylinder.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: January 26, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Publication number: 20200142349
    Abstract: A cartridge includes a coupling member for receiving a rotational force for rotating a developing roller. The cartridge also includes a cylinder including an accommodating portion accommodating at least a part of the coupling member, the cylinder being configured to transmit the rotational force from the coupling member to the developing roller. The cartridge further includes a frame including a bearing configured to rotatably support the cylinder and a regulating wall capable of regulating movement of the coupling member by contacting the coupling member. The bearing encompasses the regulating wall as seen along a rotational axis of the cylinder.
    Type: Application
    Filed: January 6, 2020
    Publication date: May 7, 2020
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Patent number: 10545450
    Abstract: A cartridge includes a rotatable member, a coupling member for receiving a rotational force for rotating the rotatable member, and a cylindrical member movably supporting one end portion of the coupling member. A first regulating portion is provided inside of the cylindrical member for preventing the end portion of the coupling member from disengaging in an axial direction of the cylindrical member, with the first regulating portion being capable of deformation to allow the one end portion of the coupling member to disengage in the axial direction of the cylindrical member. A second regulating portion is provided for regulating the deformation of the first regulating portion in a state in which the end portion of the coupling member is mounted to the inside of the cylindrical member.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: January 28, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Publication number: 20190155204
    Abstract: A cartridge includes a rotatable member, a coupling member for receiving a rotational force for rotating the rotatable member, and a cylindrical member movably supporting one end portion of the coupling member. A first regulating portion is provided inside of the cylindrical member for preventing the end portion of the coupling member from disengaging in an axial direction of the cylindrical member, with the first regulating portion being capable of deformation to allow the one end portion of the coupling member to disengage in the axial direction of the cylindrical member. A second regulating portion is provided for regulating the deformation of the first regulating portion in a state in which the end portion of the coupling member is mounted to the inside of the cylindrical member.
    Type: Application
    Filed: September 18, 2018
    Publication date: May 23, 2019
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Patent number: 10095179
    Abstract: An image forming apparatus comprises a cartridge that includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. A cylindrical member movably supports one end portion of the coupling member inside of the cylindrical member. A cylindrical member side force receiving portion is provided inside the cylindrical member. A first regulating portion, provided inside of the cylindrical member, prevents one end portion of the coupling member from disengaging in an axial direction of the cylindrical member. A second regulating portion regulates deformations of the first regulating portion outward of the cylindrical member in the radial direction in a state in which one end portion of the coupling member is mounted to the inside of the cylindrical member. The apparatus also includes a driving motor and a driving shaft engageable with the coupling member of the cartridge.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: October 9, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Patent number: 9946195
    Abstract: A developer container or a developing device including a sheet member having a plurality of holes and a plurality of protruded portions to be inserted into the holes.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: April 17, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Takasaka, Tadashi Horikawa, Naoya Asanuma, Go Torii
  • Publication number: 20180067421
    Abstract: A developer container or a developing device including a sheet member having a plurality of holes and a plurality of protruded portions to be inserted into the holes.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 8, 2018
    Inventors: Atsushi Takasaka, Tadashi Horikawa, Naoya Asanuma, Go Torii
  • Patent number: 9846386
    Abstract: A developer container or a developing device including a sheet member having a plurality of holes and a plurality of protruded portions to be inserted into the holes.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: December 19, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Takasaka, Tadashi Horikawa, Naoya Asanuma, Go Torii
  • Publication number: 20170139349
    Abstract: An image forming apparatus comprises a cartridge that includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. A cylindrical member movably supports one end portion of the coupling member inside of the cylindrical member. A cylindrical member side force receiving portion is provided inside the cylindrical member. A first regulating portion, provided inside of the cylindrical member, prevents one end portion of the coupling member from disengaging in an axial direction of the cylindrical member. A second regulating portion regulates deformations of the first regulating portion outward of the cylindrical member in the radial direction in a state in which one end portion of the coupling member is mounted to the inside of the cylindrical member. The apparatus also includes a driving motor and a driving shaft engageable with the coupling member of the cartridge.
    Type: Application
    Filed: January 30, 2017
    Publication date: May 18, 2017
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Publication number: 20170102639
    Abstract: A developer container or a developing device including a sheet member having a plurality of holes and a plurality of protruded portions to be inserted into the holes.
    Type: Application
    Filed: October 4, 2016
    Publication date: April 13, 2017
    Inventors: Atsushi Takasaka, Tadashi Horikawa, Naoya Asanuma, Go Torii
  • Patent number: 9594343
    Abstract: An image forming apparatus comprises a cartridge that includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. A cylindrical member movably supports one end portion of the coupling member inside of the cylindrical member. A cylindrical member side force receiving portion is provided inside the cylindrical member. A first regulating portion, provided inside of the cylindrical member, prevents one end portion of the coupling member from disengaging in an axial direction of the cylindrical member. A second regulating portion regulates deformations of the first regulating portion outward of the cylindrical member in the radial direction in a state in which one end portion of the coupling member is mounted to the inside of the cylindrical member. The apparatus also includes a driving motor and a driving shaft engageable with the coupling member of the cartridge.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: March 14, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Patent number: 9477201
    Abstract: A cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes coupling member that is provided for receiving a rotational force for rotating a developing roller, with a cylindrical member movably supporting one end portion of the coupling member inside of the cylindrical member, and a cylindrical member side force receiving portion being provided inside the cylindrical member for receiving the rotational force received by the coupling member. The cartridge further includes a first regulating portion for preventing one end portion of the coupling member from disengaging in an axial direction of the cylindrical member; and a second regulating portion for regulating deformation of the first regulating portion in a state in which one end portion of the coupling member is mounted to an inside of the cylindrical member with deformation of the first regulating portion.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: October 25, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Patent number: 9454124
    Abstract: An image forming apparatus includes an apparatus main body and a movable member configured to move with respect to the main body while supporting an image bearing member and a developer bearing member. The movable member is movable to a position located inside the main body, where the two bearing members is in an image formable state, and a position located outside the main body, where a cartridge including the developer bearing member is detachable from the movable member. The apparatus further includes an exposure device configured to expose the image bearing member via a light transmission member, and a cleaning member configured to clean a surface of the light transmission member opposed to the movable member. The cleaning member is provided on the movable member and is movable to a contact position for contacting the light transmission member and a noncontact position when the movable member moves.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: September 27, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Takasaka, Noriyuki Komatsu, Osamu Anan, Tetsuya Numata
  • Publication number: 20160246249
    Abstract: An image forming apparatus comprises a cartridge that includes a developing roller and a coupling member for receiving a rotational force for rotating the developing roller. A cylindrical member movably supports one end portion of the coupling member inside of the cylindrical member. A cylindrical member side force receiving portion is provided inside the cylindrical member. A first regulating portion, provided inside of the cylindrical member, prevents one end portion of the coupling member from disengaging in an axial direction of the cylindrical member. A second regulating portion regulates deformations of the first regulating portion outward of the cylindrical member in the radial direction in a state in which one end portion of the coupling member is mounted to the inside of the cylindrical member. The apparatus also includes a driving motor and a driving shaft engageable with the coupling member of the cartridge.
    Type: Application
    Filed: May 4, 2016
    Publication date: August 25, 2016
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka
  • Patent number: 9389583
    Abstract: An image forming apparatus includes an apparatus main-body to and from which a process cartridge can be attached and detached. The process cartridge includes an image carrying member to carry an image, a charging member to charge the image carrying member, a cleaning member to clean the charging member by contacting it, and a force receiving unit to receive a force for moving the cleaning member in a longitudinal direction of the image carrying member. The apparatus main-body includes a slope portion which slopes in a direction in which the process cartridge is attached and contacts the force receiving unit to apply the force in a process where the process cartridge is attached to the apparatus main-body, and the slope portion applies the force to the force receiving unit to move the cleaning member from an inside to an outside of a region where an image can be formed.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: July 12, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Maeda, Atsushi Takasaka, Ryuta Murakami
  • Patent number: 9348303
    Abstract: A cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes coupling member that is provided for receiving a rotational force for rotating a developing roller, with a cylindrical member movably supporting one end portion of the coupling member inside of the cylindrical member, and a cylindrical member side force receiving portion being provided inside the cylindrical member for receiving the rotational force received by the coupling member. The cartridge further includes a first regulating portion for preventing one end portion of the coupling member from disengaging in an axial direction of the cylindrical member; and a second regulating portion for regulating deformation of the first regulating portion in a state in which one end portion of the coupling member is mounted to an inside of the cylindrical member with deformation of the first regulating portion.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: May 24, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeo Miyabe, Takahito Ueno, Atsushi Takasaka