Patents by Inventor Nao Itabashi

Nao Itabashi 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: 20210223737
    Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 22, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Nao Itabashi, Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama
  • Patent number: 11067919
    Abstract: A developing cartridge may include: a casing configured to accommodate developer therein, the casing extending in the first direction; a coupling rotatable about a first axis extending in the first direction, the coupling being positioned at one side of the casing in the first direction; a detection gear rotatable about a second axis extending in the first direction, the detection gear being positioned at another side of the casing in the first direction; and a storage medium including an electric contact surface, the electric contact surface being positioned at the one side of the casing in the first direction.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: July 20, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Nao Itabashi, Junichi Yokoi
  • Publication number: 20210216033
    Abstract: An image forming apparatus includes a main body casing, a drum cartridge, a developing cartridge and an intermediate transfer belt. The drum cartridge is removably insertable into to the main body casing in a first direction. The developing cartridge is removably insertable into the main body casing in the first direction. The drum cartridge includes a first handle. The first handle has a first recess having a first hollow. The developing cartridge includes a second handle. The second handle has a second recess having a second hollow.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao ITABASHI
  • Patent number: 11054787
    Abstract: A drum cartridge includes: a photosensitive drum; a drum frame; a drum coupling; and an electrical contact surface. The photosensitive drum is rotatable about an axis extending in a first direction. The drum frame has one end portion in a second direction at which the photosensitive drum is positioned. The drum coupling is rotatable together with the photosensitive drum. The drum coupling is positioned at an outer surface of one side in the first direction of the drum frame. The electrical contact surface is positioned closer to another side in the second direction of the drum frame than the drum coupling is to the another side in the second direction of the drum frame.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: July 6, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroki Mori, Atsushi Fukaya, Tsubasa Kiriyama, Nao Itabashi
  • Publication number: 20210191315
    Abstract: An image forming apparatus includes: a drum cartridge to which one of a first toner cartridge and a second toner cartridge is attachable; a frame including a first slot and a second slot; and a controller including a control memory and a processor. The drum cartridge to which the one of the first toner cartridge and the second toner cartridges is attached is attachable to one of the first slot and the second slot. The control memory stores first color information allocated to the first slot, and second color information allocated to the second slot. In a state where the drum cartridge is attached to one of the first slot and the second slot and when the drum memory does not store any color information, the processor is configured to perform: writing, into the drum memory, one of the first color information and the second color information which is appropriate.
    Type: Application
    Filed: March 4, 2021
    Publication date: June 24, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takashi SUZUKI, Tomoyasu YABUKI, Tadao KYOTANI, Nao ITABASHI
  • Patent number: 11042105
    Abstract: In a cartridge, a developing roller is configured to rotate around a first rotational axis extending in a predetermined direction and to carry developer thereon, the developing roller having a first end and a second end apart from each other in the predetermined direction, a from-first-to-second direction being defined along the predetermined direction as being directed from the first end to the second end. A developing electrode is formed of a conductive material and is configured to be electrically connected to the developing roller, the developing electrode including a main part and a protruding portion protruding from the main part in the from-first-to-second direction. A detection body is formed of an insulating material and is rotatably supported by the protruding portion, the detection body including a first opening that exposes part of the protruding portion and a covering portion covering part of the protruding portion.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: June 22, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao Itabashi
  • Patent number: 11029624
    Abstract: A developing cartridge may include: a casing for accommodating developer therein; a developing roller rotatable about an axis extending in a first direction and positioned at one side of the casing in a second direction; a storage medium having an electric contact surface; and a holder movable relative to the casing in the second direction with the electric contact surface between a first position and a second position, the holder having an outer surface at which the electric contact surface is positioned.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: June 8, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao Itabashi
  • Publication number: 20210165360
    Abstract: An image forming apparatus including a main body casing, a drum cartridge, a developing cartridge, and an intermediate transfer belt. The drum cartridge includes a photosensitive drum, a drum frame, and a first memory. The intermediate transfer belt is positioned above of the drum cartridge and the developing cartridge in a state where the drum cartridge and the developing cartridge are attached to the main body casing. The drum frame includes a first end and a second end being apart from the first end in an up-down direction. The photosensitive drum is positioned at the first end. The first memory is positioned at the second end.
    Type: Application
    Filed: February 16, 2021
    Publication date: June 3, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Junichi YOKOI, Nao ITABASHI
  • Publication number: 20210165343
    Abstract: A developing cartridge may include a developing roller, a casing capable of containing a developer therein, a developing electrode movable with the casing and the developing roller and pivotable about a developing roller shaft of the developing roller in a direction, a first lever movable relative to the casing, and a holder configured to hold the first lever relative to the casing, in case where the developing electrode pivots from one side of the direction to an other side of the direction, the first lever stops the pivotable movement of the developing electrode from one side of the direction to the other side of the direction and the holder prevents the first lever from coming off the holder from the one side of the direction to the other side of the direction.
    Type: Application
    Filed: February 10, 2021
    Publication date: June 3, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao ITABASHI
  • Patent number: 11022912
    Abstract: In a cartridge, a housing has a developer accommodating portion and includes a first side wall and a second side wall. A coupling member is disposed at a position opposite to the developer accommodating portion with respect to the first side wall. A detection body is disposed at a position opposite to the developer accommodating portion with respect to the second side wall. A first driving force transmission member is positioned at the same side with the coupling member with respect to the first side wall, and transmits driving force from the coupling member to a rotating member. A second driving force transmission member is positioned at the same side with the detection body with respect to the second side wall, and transmits driving force from the rotating member to the detection body.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: June 1, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Nao Itabashi, Naoya Kamimura
  • Patent number: 11022936
    Abstract: In a developing cartridge, a first supporting member is attached to a housing and has a first developing supporting portion and a driving-force-receiving-member supporting portion, the first developing supporting portion being configured to rotatably support a first part of a rotational shaft, the driving-force-receiving-member supporting portion being configured to rotatably support a driving-force-receiving member. The second supporting member is attached to the housing and has a second developing supporting portion and a detection-rotational-body supporting portion, the second developing supporting portion being configured to rotatably support a second part of the rotational shaft, the detection-rotational-body supporting portion being configured to rotatably support a detection rotational body.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: June 1, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Nao Itabashi, Hideshi Nishiyama, Yasuo Fukamachi
  • Patent number: 11022931
    Abstract: A developing cartridge may include a developing roller and a casing capable of containing a developer material, a member having a first end portion and a second end portion, the member being movable together with the casing and the developing roller, and the member having a first hole extending in a direction between the first end portion and the second end portion; and a first lever movable relative to the casing between a first position and a second position, the first lever including one end portion that functions as the point of effort, an other end portion that functions as the point of application, and a cam surface that is located between the one end portion and the other end portion and that functions as a pivot point.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: June 1, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao Itabashi
  • Patent number: 11003107
    Abstract: A developing cartridge 1 may include a developing roller including a developing roller shaft, a casing capable of containing a developer material, and a developing electrode or a member configure to be electrically connected to the developing roller shaft. The developing electrode or the member has a first end portion configured to be electrically connected to the developing roller shaft and a second end portion located farther away from the developing roller shaft than the first end portion. The second end portion is farther away in the second direction from the one end of the casing than the first end portion is from the one end of the casing. The developing electrode has a first hole extending in the second direction between the first end portion and the second end portion.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: May 11, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao Itabashi
  • Patent number: 10969729
    Abstract: An image forming apparatus includes a main body casing, a drum cartridge, a developing cartridge and an intermediate transfer belt. The drum cartridge is removably insertable into to the main body casing in a first direction. The developing cartridge is removably insertable into the main body casing in the first direction. The drum cartridge includes a first handle. The first handle has a first recess having a first hollow. The developing cartridge includes a second handle. The second handle has a second recess having a second hollow.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: April 6, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao Itabashi
  • Patent number: 10962928
    Abstract: An image forming apparatus includes: a drum cartridge to which one of a first toner cartridge and a second toner cartridge is attachable; a frame including a first slot and a second slot; and a controller including a control memory and a processor. The drum cartridge to which the one of the first toner cartridge and the second toner cartridges is attached is attachable to one of the first slot and the second slot. The control memory stores first color information allocated to the first slot, and second color information allocated to the second slot. In a state where the drum cartridge is attached to one of the first slot and the second slot and when the drum memory does not store any color information, the processor is configured to perform: writing, into the drum memory, one of the first color information and the second color information which is appropriate.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: March 30, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takashi Suzuki, Tomoyasu Yabuki, Tadao Kyotani, Nao Itabashi
  • Patent number: 10962903
    Abstract: A developing cartridge may include: a casing for accommodating developer therein; a developing roller rotatable about an axis extending in a first direction and positioned at one side of the casing in a second direction; a storage medium having an electric contact surface; and a holder movable relative to the casing in the second direction with the electric contact surface between a first position and a second position, the holder having an outer surface at which the electric contact surface is positioned.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: March 30, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao Itabashi
  • Publication number: 20210072698
    Abstract: A drum unit includes: a frame; a first photosensitive drum; a second photosensitive drum; a charger; and a storage medium. The frame includes: a first frame plate; a second frame plate spaced apart from the first frame plate in a first direction; a third frame plate connecting one end of the first frame plate to one end of the second frame plate; and a fourth frame plate connecting another end of the first frame plate to another end of the second frame plate. The first photosensitive drum and the second photosensitive drum are rotatably supported by the frame. The second photosensitive drum is spaced apart from the first photosensitive drum and positioned closer to the third frame plate than the first photosensitive drum to the third frame plate in a second direction. The storage medium has an electrical contact surface positioned at an outer surface of the third frame plate.
    Type: Application
    Filed: November 18, 2020
    Publication date: March 11, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Isao KISHI, Nao ITABASHI, Yohei HASHIMOTO, Kouji WATANABE, Makoto SOUDA
  • Publication number: 20210063952
    Abstract: A drum cartridge includes: a photosensitive drum; a drum frame; a drum coupling; and an electrical contact surface. The photosensitive drum is rotatable about an axis extending in a first direction. The drum frame has one end portion in a second direction at which the photosensitive drum is positioned. The drum coupling is rotatable together with the photosensitive drum. The drum coupling is positioned at an outer surface of one side in the first direction of the drum frame. The electrical contact surface is positioned closer to another side in the second direction of the drum frame than the drum coupling is to the another side in the second direction of the drum frame.
    Type: Application
    Filed: August 26, 2020
    Publication date: March 4, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroki MORI, Atsushi FUKAYA, Tsubasa KIRIYAMA, Nao ITABASHI
  • Publication number: 20210063960
    Abstract: A drum cartridge includes: a photosensitive drum rotatable about an axis extending in a first direction; a first drum frame to which a developing cartridge is attachable; and a second drum frame having an outer surface; and a memory having an electrical contact surface. The first drum frame is at one end portion of the drum cartridge in a second direction and the second drum frame is at another end portion of the drum cartridge in the second direction. The electrical contact surface is positioned at the outer surface of the second drum frame and is movable in a predetermined direction relative to the second drum frame.
    Type: Application
    Filed: August 25, 2020
    Publication date: March 4, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao ITABASHI
  • Publication number: 20210063911
    Abstract: A toner cartridge includes a casing, a developing roller, a holder, a toner memory, an electrical contact and a wiring. The holder is positioned at an outer surface of one side in a first direction of the casing. The electric contact surface is positioned at an outer surface of one side in a second direction of the holder. The second direction crosses the electric contact surface. The electrical contact is positioned on an outer surface of another side in the second direction of the holder. The wiring electrically connects the electrical contact and the electric contact surface. The electric contact surface includes a first electric contact surface and a second electric contact surface. The first electric contact surface electrically is connected to the electrical contact through the wiring. The second electric contact surface electrically is connected to the toner memory.
    Type: Application
    Filed: August 27, 2020
    Publication date: March 4, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tsubasa KIRIYAMA, Hiroki MORI, Nao ITABASHI, Atsushi FUKAYA