Patents by Inventor Tetsuo Uesugi

Tetsuo Uesugi 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: 20250199465
    Abstract: A cartridge includes a first unit including an image bearing member and a second unit including a developer bearing member. The second unit is swingable with respect to the first unit. The second unit includes a pressed portion to be pressed by a pressing member of the apparatus body. When viewed in an axial direction, (i) the swing axis and the pressed portion are arranged on opposite sides to each other with respect to a virtual straight line, (ii) the pressed portion, the swing axis, and the first axis are arranged in the named order in an interaxial direction, and (iii) a distance from the pressed portion to the swing axis in the interaxial direction is longer than a distance from the swing axis to the first axis in the interaxial direction.
    Type: Application
    Filed: March 4, 2025
    Publication date: June 19, 2025
    Inventors: YUKO HARADA, SHUNSUKE URATANI, MAKOTO HAYASHIDA, TETSUO UESUGI
  • Patent number: 12287603
    Abstract: A cartridge includes a coupling positioned at an end of a photosensitive drum, with the coupling including (i) a cylindrical main body positioned coaxially with the photosensitive drum and open to outside of the cartridge and (ii) a projection positioned in the cylindrical main body. The projection is movable relative to the cylindrical main body between a first position and a second position such that an end of the projection is positioned closer to the rotational axis of the coupling when the projection is in the first position than when the projection is in the second position. A part of the cylindrical main body is positioned outside the photosensitive drum, and a part of the cylindrical main body is positioned inside of the photosensitive drum, and the projection is at least partially positioned inside of the photosensitive drum.
    Type: Grant
    Filed: May 7, 2024
    Date of Patent: April 29, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
  • Publication number: 20250123589
    Abstract: A cartridge includes a toner accommodating portion provided with an opening through which the toner is received, a shutter rotatable about a rotational axis between a closed position where the shutter closes the opening and an open position where the shutter opens the opening, and a restricting member which includes a first engaging portion extending toward the shutter on a second end portion side of the shutter opposite from a first end portion side of the shutter with respect to a direction of the rotational axis. The restricting member includes a second engaging portion engageable with the shutter so that when the shutter is in the closed position, relative movement of the restricting member to the shutter in a direction from the first end portion toward the second end portion is restricted.
    Type: Application
    Filed: October 10, 2024
    Publication date: April 17, 2025
    Inventors: SHUICHI GOFUKU, TAKASHI KIMURA, TETSUO UESUGI
  • Publication number: 20250116960
    Abstract: To further develop a drive transmission method from a main assembly of an apparatus toward a cartridge. The cartridge is detachably mountable to a main assembly of an image forming apparatus including a drive output member configured to output a driving force, and a main assembly side pushing member configured to incline the drive output member by pushing the drive output member. The cartridge includes a photosensitive drum and a cartridge side pushing member. The cartridge side pushing member is configured such that an inclination angle of the drive output member is changed by pushing the main assembly side pushing member.
    Type: Application
    Filed: December 19, 2024
    Publication date: April 10, 2025
    Inventors: Goshi Ozaki, Shigemi Kamoshida, Isao Koishi, Yukio Kubo, Noriyuki Komatsu, Tetsuo Uesugi
  • Patent number: 12271147
    Abstract: A cartridge includes a first unit including an image bearing member and a second unit including a developer bearing member. The second unit is swingable with respect to the first unit. The second unit includes a pressed portion to be pressed by a pressing member of the apparatus body. When viewed in an axial direction, (i) the swing axis and the pressed portion are arranged on opposite sides to each other with respect to a virtual straight line, (ii) the pressed portion, the swing axis, and the first axis are arranged in the named order in an interaxial direction, and (iii) a distance from the pressed portion to the swing axis in the interaxial direction is longer than a distance from the swing axis to the first axis in the interaxial direction.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: April 8, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuko Harada, Shunsuke Uratani, Makoto Hayashida, Tetsuo Uesugi
  • Publication number: 20250110423
    Abstract: A cartridge includes a frame, a drive input member, a toner feeding member driven based on a driving force received by a coupling and a discharge member having a discharge opening for discharging toner fed by the toner feeding member, to outside of the cartridge. The discharge opening is capable of orienting opposite from a side where the drive input member is provided, in a longitudinal direction of the cartridge.
    Type: Application
    Filed: December 13, 2024
    Publication date: April 3, 2025
    Inventors: TETSUO UESUGI, TOSHIAKI TAKEUCHI, JOJI GOTO, NAOKI MAEDA, TAKAYUKI YADA, SHIGEMI KAMOSHIDA, FUMITO NONAKA, TERUHIKO SASAKI, TACHIO KAWAI, NORIYUKI KOMATSU, NAOYA ASANUMA, AKINOBU HIRAYAMA, SHUICHI GOFUKU, TOSHIKI FUJINO, SATOSHI KOGA, GO TORII
  • Patent number: 12210311
    Abstract: An image forming apparatus comprises a main assembly of the image forming apparatus, with the main assembly including a driving shaft. The image forming apparatus also includes a cartridge detachably mountable to the main assembly of the image forming apparatus, the cartridge including (i) a photosensitive drum and (ii) a coupling positioned adjacent to an end portion of the photosensitive drum, with the coupling being movable in an axial direction of the photosensitive drum. The coupling is engageable with the driving shaft by the coupling moving in the axial direction in a state in which the cartridge is tilted relative to the main assembly of the image forming apparatus.
    Type: Grant
    Filed: September 26, 2023
    Date of Patent: January 28, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Goshi Ozaki, Noriyuki Komatsu, Tetsuo Uesugi
  • Patent number: 12124211
    Abstract: A developing cartridge includes a coupling member provided adjacent to a first end of a casing. The coupling member is operatively connected to a developing roller, and the coupling member is rotatable about a rotational axis thereof. The coupling member includes (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, (iv) an elastically movable projection at least partially positioned inside of the cylindrical portion, and (v) a wall extending in a direction perpendicular to the rotational axis and positioned between a second end of the casing and the first and second projections.
    Type: Grant
    Filed: August 3, 2023
    Date of Patent: October 22, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
  • Publication number: 20240310779
    Abstract: A cartridge includes a coupling positioned at an end of a photosensitive drum, with the coupling including (i) a cylindrical main body positioned coaxially with the photosensitive drum and open to outside of the cartridge and (ii) a projection positioned in the cylindrical main body. The projection is movable relative to the cylindrical main body between a first position and a second position such that an end of the projection is positioned closer to the rotational axis of the coupling when the projection is in the first position than when the projection is in the second position. A part of the cylindrical main body is positioned outside the photosensitive drum, and a part of the cylindrical main body is positioned inside of the photosensitive drum, and the projection is at least partially positioned inside of the photosensitive drum.
    Type: Application
    Filed: May 7, 2024
    Publication date: September 19, 2024
    Inventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
  • Patent number: 12072668
    Abstract: A developing cartridge includes a coupling member provided adjacent to a first end of a casing. The coupling member is operatively connected to a developing roller, and the coupling member is rotatable about a rotational axis thereof. The coupling member includes (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, (iv) an elastically movable projection at least partially positioned inside of the cylindrical portion, and (v) a wall extending in a direction perpendicular to the rotational axis and positioned between a second end of the casing and the first and second projections.
    Type: Grant
    Filed: August 3, 2023
    Date of Patent: August 27, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
  • Publication number: 20240036495
    Abstract: A pump portion 21 which is variable in volume, a feeding path portion 24 including a connection opening connected to the pump portion 21 at one end and including a discharge opening 23 at the other end, and a toner accommodating portion 22 connected to an intermediate portion between the one end and the other end of the feeding path portion 24 and for accommodating the toner are provided, and a volume change amount of the pump portion 21 is larger than a total volume from the connection opening to the discharge opening 23 of the feeding path portion 24.
    Type: Application
    Filed: October 10, 2023
    Publication date: February 1, 2024
    Inventors: Hiroomi Matsuzaki, Hiroki Ogino, Tetsuo Uesugi
  • Publication number: 20240012357
    Abstract: An image forming apparatus comprises a main assembly of the image forming apparatus, with the main assembly including a driving shaft. The image forming apparatus also includes a cartridge detachably mountable to the main assembly of the image forming apparatus, the cartridge including (i) a photosensitive drum and (ii) a coupling positioned adjacent to an end portion of the photosensitive drum, with the coupling being movable in an axial direction of the photosensitive drum. The coupling is engageable with the driving shaft by the coupling moving in the axial direction in a state in which the cartridge is tilted relative to the main assembly of the image forming apparatus.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 11, 2024
    Inventors: Goshi Ozaki, Noriyuki Komatsu, Tetsuo Uesugi
  • Publication number: 20230418209
    Abstract: A cartridge including a rotatable image bearing member which bears a developer, a cleaning member for removing a developer remaining on a surface of the image bearing member, the cleaning member having a contact portion in contact with the surface of the image bearing member and a support portion which supports the contact portion, a developer recovering portion which recovers the developer removed by the cleaning member, a first conveyance member which is disposed inside the developer recovering portion and conveys the recovered developer in a rotation axis direction of the image bearing member, and a second conveyance member which conveys the developer conveyed by the first conveyance member in a direction crossing the rotation axis direction toward a discharge port provided in the developer recovering portion, is used.
    Type: Application
    Filed: June 23, 2023
    Publication date: December 28, 2023
    Inventors: Naoki Maeda, Shunsuke Uratani, Makoto Hayashida, Tetsuo Uesugi, Yuuki Nakamura, Joji Goto
  • Publication number: 20230418219
    Abstract: A cartridge includes a first unit including an image bearing member and a second unit including a developer bearing member. The second unit is swingable with respect to the first unit. The second unit includes a pressed portion to be pressed by a pressing member of the apparatus body. When viewed in an axial direction, (i) the swing axis and the pressed portion are arranged on opposite sides to each other with respect to a virtual straight line, (ii) the pressed portion, the swing axis, and the first axis are arranged in the named order in an interaxial direction, and (iii) a distance from the pressed portion to the swing axis in the interaxial direction is longer than a distance from the swing axis to the first axis in the interaxial direction.
    Type: Application
    Filed: June 9, 2023
    Publication date: December 28, 2023
    Inventors: YUKO HARADA, SHUNSUKE URATANI, MAKOTO HAYASHIDA, TETSUO UESUGI
  • Patent number: 11829096
    Abstract: The cartridge is detachably mountable to a main assembly of an image forming apparatus that includes a drive output member configured to output a driving force, and a main assembly side pushing member configured to incline the drive output member by pushing the drive output member. The cartridge includes a photosensitive drum and a cartridge side pushing member. The cartridge side pushing member is configured such that an inclination angle of the drive output member is changed by pushing the main assembly side pushing member.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: November 28, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Goshi Ozaki, Shigemi Kamoshida, Isao Koishi, Yukio Kubo, Noriyuki Komatsu, Tetsuo Uesugi
  • Publication number: 20230375976
    Abstract: A developing cartridge includes a coupling member provided adjacent to a first end of a casing. The coupling member is operatively connected to a developing roller, and the coupling member is rotatable about a rotational axis thereof. The coupling member includes (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, (iv) an elastically movable projection at least partially positioned inside of the cylindrical portion, and (v) a wall extending in a direction perpendicular to the rotational axis and positioned between a second end of the casing and the first and second projections.
    Type: Application
    Filed: August 3, 2023
    Publication date: November 23, 2023
    Inventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
  • Patent number: 11815830
    Abstract: A toner cartridge includes a pump portion that is variable in volume, a feeding path portion including a connection opening connected to the pump portion at a first end and including a discharge opening at a second end, and a toner accommodating portion connected to an intermediate portion between the first end of the feeding path portion and the second end of the feeding path portion. A volume change amount of the pump portion is greater than a total volume from the connection opening to the discharge opening.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: November 14, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroomi Matsuzaki, Hiroki Ogino, Tetsuo Uesugi
  • Patent number: 11762330
    Abstract: A coupling member is provided for a cartridge that includes a cylindrical photosensitive drum that is rotatable about an axis. The coupling member is operatively connected to the photosensitive drum and is capable of receiving a rotational force for rotating the photosensitive drum.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: September 19, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
  • Patent number: 11733636
    Abstract: A drum unit includes a photosensitive drum in a coupling member. The coupling member includes an engageable member having a driving force receiving portion which is capable of entering a recess of a driving shaft to receive a driving force for rotating photosensitive drum. The coupling member includes a holding member configured to hold said engageable member so as to be slidable at least in a radial direction of said drum unit.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: August 22, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomonori Mori, Tetsuo Uesugi
  • Patent number: 11480909
    Abstract: A drum unit includes a photosensitive drum in a coupling member. The coupling member includes an engageable member having a driving force receiving portion which is capable of entering a recess of a driving shaft to receive a driving force for rotating photosensitive drum. The coupling member includes a holding member configured to hold said engageable member so as to be slidable at least in a radial direction of said drum unit.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: October 25, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomonori Mori, Tetsuo Uesugi