Patents by Inventor Toshiaki Takeuchi

Toshiaki Takeuchi 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: 20230418221
    Abstract: A cartridge includes a photosensitive drum rotatable about an axis extending in an axial direction; a memory including a storing element configured to store information, a memory contact electrically connected to the storing element, and a substrate having a surface on which the memory contact is provided; and a frame which supports the photosensitive drum, on which the substrate is mounted, and which includes a first end with respect to the axial direction and a second end opposite from the first end. The frame includes a container provided with an accommodating chamber for accommodating a developer collected from the photosensitive drum and with an opening communicating with the accommodating chamber and includes a mounting member mounted on the container so as to cover the opening. The mounting member includes a supporting portion for supporting the substrate.
    Type: Application
    Filed: June 12, 2023
    Publication date: December 28, 2023
    Inventors: YOSUKE KASHIIDE, YUICHI FUKUI, NAOKI HAYASHI, NAOKI MAEDA, TAKASHI KIMURA, TOSHIAKI TAKEUCHI, SHUICHI GOFUKU, TAKAYUKI YADA
  • Publication number: 20230418212
    Abstract: A cartridge including: a first unit including an image bearing member and a first portion, and configured to take a removal posture when the cartridge is to be removed from a main body; a second unit including a developer bearing member and a second portion, the second unit being movable between a first position where the developer bearing member is in contact with the image bearing member and a second position where the developer bearing member is separated from the image bearing member and where the second portion is in contact with the first portion, wherein when the first unit takes the removal posture, the second unit is located at the second position, and when the second unit is located at the second position, movement of the second unit in a direction, in which the developer bearing member is separated from the image bearing member, is restricted.
    Type: Application
    Filed: September 6, 2023
    Publication date: December 28, 2023
    Inventors: Toshiaki Takeuchi, Koichi Ooishi, Hiroki Shimizu
  • Patent number: 11789401
    Abstract: A cartridge including: a first unit including an image bearing member and a first portion, and configured to take a removal posture when the cartridge is to be removed from a main body; a second unit including a developer bearing member and a second portion, the second unit being movable between a first position where the developer bearing member is in contact with the image bearing member and a second position where the developer bearing member is separated from the image bearing member and where the second portion is in contact with the first portion, wherein when the first unit takes the removal posture, the second unit is located at the second position, and when the second unit is located at the second position, movement of the second unit in a direction, in which the developer bearing member is separated from the image bearing member, is restricted.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: October 17, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshiaki Takeuchi, Koichi Ooishi, Hiroki Shimizu
  • Publication number: 20230244181
    Abstract: A cartridge includes a first unit including a photosensitive member, and a second unit including a developer bearing member and a force receiving portion, the second unit being configured to be rotatable about a first axis to move with respect to the first unit between a first position and a second position. In a state where the first unit is in a same posture as when an image forming operation is performed, the second unit is disposed at the second position by its own weight. The developer bearing member is configured to be rotatable about a second axis. When seen in the direction of the first axis, a first distance between the force receiving portion and the second axis is smaller than a second distance between the first axis and the second axis and a third distance between the first axis and the force receiving portion.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 3, 2023
    Inventors: Hideki Kakuta, Toshiaki Takeuchi, Yu Akiba, Shuichi Gofuku, Tomofumi Kawamura, Yusuke Atsu, Joji Goto
  • Patent number: 11650538
    Abstract: A cartridge includes a first unit including a photosensitive member, and a second unit including a developer bearing member and a force receiving portion, the second unit being configured to be rotatable about a first axis to move with respect to the first unit between a first position and a second position. In a state where the first unit is in a same posture as when an image forming operation is performed, the second unit is disposed at the second position by its own weight. The developer bearing member is configured to be rotatable about a second axis. When seen in the direction of the first axis, a first distance between the force receiving portion and the second axis is smaller than a second distance between the first axis and the second axis and a third distance between the first axis and the force receiving portion.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: May 16, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Kakuta, Toshiaki Takeuchi, Yu Akiba, Shuichi Gofuku, Tomofumi Kawamura, Yusuke Atsu, Joji Goto
  • Patent number: 11619908
    Abstract: A cartridge includes a frame and a photosensitive drum rotatably supported by the frame. An opening is provided in the cartridge, with toner removed from the photosensitive drum being discharged to outside of the cartridge through the opening. A discharging passageway is provided in fluid communication with the opening and through which toner can move to the opening. A coupling member is provided inside the discharging passageway, with the coupling member including a projection at an end of the coupling member, and the coupling member being movable along the discharging passageway between a first position and a second position.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: April 4, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Patent number: 11579564
    Abstract: A cartridge includes a frame and a photosensitive drum rotatably supported by the frame. An opening is provided in the cartridge, with toner removed from the photosensitive drum being discharged to outside of the cartridge through the opening. A discharging passageway is provided in fluid communication with the opening and through which toner can move to the opening. A coupling member is provided inside the discharging passageway, with the coupling member including a projection at an end of the coupling member, and the coupling member being movable along the discharging passageway between a first position and a second position.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: February 14, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Publication number: 20230025390
    Abstract: A cartridge including: a first unit including an image bearing member and a first portion, and configured to take a removal posture when the cartridge is to be removed from a main body; a second unit including a developer bearing member and a second portion, the second unit being movable between a first position where the developer bearing member is in contact with the image bearing member and a second position where the developer bearing member is separated from the image bearing member and where the second portion is in contact with the first portion, wherein when the first unit takes the removal posture, the second unit is located at the second position, and when the second unit is located at the second position, movement of the second unit in a direction, in which the developer bearing member is separated from the image bearing member, is restricted.
    Type: Application
    Filed: September 30, 2022
    Publication date: January 26, 2023
    Inventors: Toshiaki Takeuchi, Koichi Ooishi, Hiroki Shimizu
  • Patent number: 11493878
    Abstract: A cartridge including: a first unit including an image bearing member and a first portion, and configured to take a removal posture when the cartridge is to be removed from a main body; a second unit including a developer bearing member and a second portion, the second unit being movable between a first position where the developer bearing member is in contact with the image bearing member and a second position where the developer bearing member is separated from the image bearing member and where the second portion is in contact with the first portion, wherein when the first unit takes the removal posture, the second unit is located at the second position, and when the second unit is located at the second position, movement of the second unit in a direction, in which the developer bearing member is separated from the image bearing member, is restricted.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: November 8, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshiaki Takeuchi, Koichi Ooishi, Hiroki Shimizu
  • Publication number: 20220259385
    Abstract: The present invention relates to the provision of an aqueous emulsion composition for producing a film showing slippery properties containing hydrophobically modified cellulose fibers and at the same time improving water resistance and durability of the film. Since the emulsion composition of the present invention is capable of forming a film having slippery properties, which can be utilized on various surfaces, for example, those in the fields of coatings for ships and bridges, cosmetics, and the like.
    Type: Application
    Filed: July 31, 2020
    Publication date: August 18, 2022
    Applicant: KAO CORPORATION
    Inventors: Toshiaki TAKEUCHI, Yoshinori HASEGAWA, Takuya MASUDA, Kouji OHSAKI
  • Publication number: 20220236691
    Abstract: A cartridge includes a frame and a photosensitive drum rotatably supported by the frame. An opening is provided in the cartridge, with toner removed from the photosensitive drum being discharged to outside of the cartridge through the opening. A discharging passageway is provided in fluid communication with the opening and through which toner can move to the opening. A coupling member is provided inside the discharging passageway, with the coupling member including a projection at an end of the coupling member, and the coupling member being movable along the discharging passageway between a first position and a second position.
    Type: Application
    Filed: April 12, 2022
    Publication date: July 28, 2022
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Patent number: 11389550
    Abstract: Provided is a novel nanoparticle, a contrast agent for magnetic resonance imaging containing the same, and a ligand compound used for production of the nanoparticle. The present invention relates to a nanoparticle including: a metal particle containing iron oxide; and a ligand which is bound to a metal atom on a surface of the metal particle and is represented by formula (3): where m is an integer of 1 to 4, and a broken line represents a coordinate bond with a metal atom on the surface of the metal particle.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: July 19, 2022
    Assignees: RIKEN, NATIONAL INSTITUTES FOR QUANTUM SCIENCE AND TECHNOLOGY
    Inventors: Daigo Miyajima, Toshiaki Takeuchi, Seunghyun Sim, Takuzo Aida, Ichio Aoki
  • Publication number: 20220184236
    Abstract: Provided is a novel nanoparticle, a contrast agent for magnetic resonance imaging containing the same, and a zwitterionic ligand compound used in production of the nanoparticle. The contrast agent for MRI of the present invention can be suitably used as a contrast agent for MRI in a medical field. The nanoparticle and the zwitterionic ligand compound of the present invention are applicable to various pharmaceutical compositions and the like, including a contrast agent for MRI, and can be used widely in the fields of pharmaceuticals, biotechnology, and the like, including various diagnosis methods and examination reagents.
    Type: Application
    Filed: December 27, 2019
    Publication date: June 16, 2022
    Inventors: Tsuyoshi Mizutani, Hiroyoshi Yamada, Hiroki Toya, Akihiko Fujikawa, Seiji Yoshimura, Shigetoshi Kikuchi, Daigo Miyajima, Toshiaki Takeuchi, Takuzo Aida, Ichio Aoki
  • Patent number: 11353821
    Abstract: A cartridge includes a photosensitive drum and a discharge opening for permitting discharge of toner removed from the photosensitive drum to outside of the cartridge. The cartridge also includes a coupling member provided adjacent to the discharge opening and configured to output a rotational force, with the coupling member being movable relative to the photosensitive drum between (i) a first position and (ii) a second position retracted from the first position.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: June 7, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Publication number: 20220171328
    Abstract: A cartridge includes a first unit including a photosensitive member, and a second unit including a developer bearing member and a force receiving portion, the second unit being configured to be rotatable about a first axis to move with respect to the first unit between a first position and a second position. In a state where the first unit is in a same posture as when an image forming operation is performed, the second unit is disposed at the second position by its own weight. The developer bearing member is configured to be rotatable about a second axis. When seen in the direction of the first axis, a first distance between the force receiving portion and the second axis is smaller than a second distance between the first axis and the second axis and a third distance between the first axis and the force receiving portion.
    Type: Application
    Filed: February 16, 2022
    Publication date: June 2, 2022
    Inventors: Hideki Kakuta, Toshiaki Takeuchi, Yu Akiba, Shuichi Gofuku, Tomofumi Kawamura, Yusuke Atsu, Joji Goto
  • Patent number: 11320780
    Abstract: A cartridge includes a photosensitive drum and a discharge opening for permitting discharge of toner removed from the photosensitive drum to outside of the cartridge. The cartridge also includes a coupling member provided adjacent to the discharge opening and configured to output a rotational force, with the coupling member being movable relative to the photosensitive drum between (i) a first position and (ii) a second position retracted from the first position.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: May 3, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Patent number: 11204582
    Abstract: A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive drum; a discharging path for permitting movement of a developer removed from the drum, the discharging path including a developer discharge opening and a movable portion through which the developer is movable and which is movable between a retracted position in an upstream side with respect to a developer moving direction through the discharge opening and a advanced position in a downstream side with respect to the developer moving direction; and a sealing portion for closing the discharging path by contacting the movable portion at a position different from that of the discharge opening.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: December 21, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Patent number: 11199789
    Abstract: Provided is an image forming unit including a photosensitive unit including an image bearing member, a developing unit including a developer bearing member and a container capable of containing a developer, a rotation shaft, the developing unit being rotated around the rotation shaft and positioned at one of a development position where the developer bearing member supplies the developer to the image bearing member and a separation position where the developer bearing member separates from the image bearing member, and a sensing portion sensing a variation or an amount corresponding to an amount of the developer contained in the developing unit. The rotation shaft is located below a developing portion, which is formed of the image bearing member and the developer bearing member, in a gravity direction.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: December 14, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yohei Kusano, Hiroki Shimizu, Toshiaki Takeuchi, Hideki Kakuta
  • Patent number: 11188021
    Abstract: A cartridge including: a first unit including an image bearing member and a first portion, and configured to take a removal posture when the cartridge is to be removed from a main body; a second unit including a developer bearing member and a second portion, the second unit being movable between a first position where the developer bearing member is in contact with the image bearing member and a second position where the developer bearing member is separated from the image bearing member and where the second portion is in contact with the first portion, wherein when the first unit takes the removal posture, the second unit is located at the second position, and when the second unit is located at the second position, movement of the second unit in a direction, in which the developer bearing member is separated from the image bearing member, is restricted.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: November 30, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshiaki Takeuchi, Koichi Ooishi, Hiroki Shimizu
  • Publication number: 20210341875
    Abstract: A cartridge including: a first unit including an image bearing member and a first portion, and configured to take a removal posture when the cartridge is to be removed from a main body; a second unit including a developer bearing member and a second portion, the second unit being movable between a first position where the developer bearing member is in contact with the image bearing member and a second position where the developer bearing member is separated from the image bearing member and where the second portion is in contact with the first portion, wherein when the first unit takes the removal posture, the second unit is located at the second position, and when the second unit is located at the second position, movement of the second unit in a direction, in which the developer bearing member is separated from the image bearing member, is restricted.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Inventors: Toshiaki Takeuchi, Koichi Ooishi, Hiroki Shimizu