Patents by Inventor Toshiaki Nagashima

Toshiaki Nagashima 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: 12282287
    Abstract: A developer supply container includes a developer accommodating body that is rotatable about a rotational axis relative to a developer discharging body. A shutter is movable relative to the developer discharging body between an open position wherein a discharge opening is open and a closed position wherein the discharge opening is closed by the shutter. The developer accommodating body is provided with a gear portion provided about the rotational axis. The developer discharging body is provided with a shutter support movably supporting the shutter. As viewed in a direction towards the bottommost side of the container, the shutter support extends at least from the discharge opening toward the developer accommodating body but does not to overlap the gear.
    Type: Grant
    Filed: January 3, 2024
    Date of Patent: April 22, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
  • Publication number: 20250116962
    Abstract: A developer supply container is configured for supplying developer through a developer receiving portion displaceably provided in a developer receiving apparatus to which the developer supply container is detachably mountable. The developer supply container includes a developer accommodating portion for accommodating developer and and engaging portion engageable with the developer receiving portion. The engaging portion is configured such that when the developer supply container is mounted to the developer receiving apparatus by inserting in an inserting direction, the engaging portion is capable of starting engagement with the developer receiving portion.
    Type: Application
    Filed: December 18, 2024
    Publication date: April 10, 2025
    Inventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
  • Publication number: 20240411242
    Abstract: In the case that a developer supply container is provided with a feeding portion for feeding a developer by receiving a rotational force and a pump portion for discharging the developer by reciprocation, and the rotational force and a reciprocating force are received from a main assembly side of an image forming apparatus, there is a liability that a driving connection is not properly established between a portion of the developer supply container for receiving the reciprocating force and a portion of the main assembly side for applying the reciprocating force. The developer supply container is provided with a drive converting mechanism for converting the rotational force received from the main assembly side to a force for operating a volume changing type pump.
    Type: Application
    Filed: August 20, 2024
    Publication date: December 12, 2024
    Inventors: Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa, Ayatomo Okino, Yusuke Yamada
  • Patent number: 12092972
    Abstract: A toner cartridge includes a chamber containing toner, a feeding portion configured to feed the toner toward an opening in the toner cartridge, and a pump configured to discharge the toner through the opening to outside of the toner cartridge, the pump being configured to move the toner by changing pressure inside of the toner cartridge relative to pressure outside of the toner cartridge. A rotatable coupling is configured to receive a rotational force from outside of the toner cartridge, the coupling being operatively connected to the feeding portion and the pump so as to transmit the rotational force to the feeding portion and the pump to thereby rotate the feeding portion and drive the pump.
    Type: Grant
    Filed: April 11, 2023
    Date of Patent: September 17, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa, Ayatomo Okino, Yusuke Yamada
  • Publication number: 20240231270
    Abstract: An object of the present invention is to provide a developer supply container capable of simplifying a mechanism for displacing a developer receiving portion to connect it with a developer supply container. A developer supply container 1 for supplying a developer through a developer receiving portion 11 displaceably provided in a developer receiving apparatus 8 to which said developer supply container 1 is detachably mountable, said developer supply container 1 includes a developer accommodating portion 2c for accommodating a developer; and an engaging portions 3b2, 3b4, engageable with said developer receiving portion 11, for displacing said developer receiving portion 11 toward said developer supply container 1 with a mounting operation of said developer supply container 1 to establish a connected state between said developer supply container 1 and said developer receiving portion 11.
    Type: Application
    Filed: January 3, 2024
    Publication date: July 11, 2024
    Inventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
  • Publication number: 20240176281
    Abstract: There are provided a rotatable developer accommodating portion accommodating a developer, a discharge end portion provided at a bottom side with a discharge opening for discharging the developer accommodated in the developer accommodating portion, an engaging portion 30 engageable with a portion-to-be-engaged 11b with a mounting operation of the developer supply container 1 to displace the portion-to-be-engaged 11b in an upward direction U to bring the receiving opening into fluid communication with the discharge opening, and a swing shaft 41 rotatably supporting engaging portion 30 provided at such a position that opposite end portions of the engaging portion 30 a rotatable.
    Type: Application
    Filed: February 8, 2024
    Publication date: May 30, 2024
    Inventors: MASATO YAMAOKA, TOSHIAKI NAGASHIMA
  • Publication number: 20240134310
    Abstract: An object of the present invention is to provide a developer supply container capable of simplifying a mechanism for displacing a developer receiving portion to connect it with a developer supply container. A developer supply container 1 for supplying a developer through a developer receiving portion 11 displaceably provided in a developer receiving apparatus 8 to which said developer supply container 1 is detachably mountable, said developer supply container 1 includes a developer accommodating portion 2c for accommodating a developer; and an engaging portions 3b2, 3b4, engageable with said developer receiving portion 11, for displacing said developer receiving portion 11 toward said developer supply container 1 with a mounting operation of said developer supply container 1 to establish a connected state between said developer supply container 1 and said developer receiving portion 11.
    Type: Application
    Filed: January 3, 2024
    Publication date: April 25, 2024
    Inventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
  • Patent number: 11934140
    Abstract: A developer supply container includes a rotatable developer accommodating portion accommodating developer and a developer discharging portion in fluid communication with the developer accommodating portion, the developer discharging portion being provided with a discharge opening for discharging the developer from the developer accommodating portion. A seesaw member is provided at each of opposite lateral sides of the developer supply container, each seesaw member being positioned to not cover the discharge opening when the developer supply container is oriented with the developer discharge opening positioned at a bottom side of the developer discharging portion, with both of the seesaw members being rotatable about a second rotational axis that extends in a direction that crosses a direction of the first rotational axis.
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: March 19, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Yamaoka, Toshiaki Nagashima
  • Patent number: 11906926
    Abstract: A developer supply includes a developer accommodating body and a developer discharging body. A track is positioned at a side of the developer discharging body, with the track including a surface that extends from a first position to a second position. When the developer supply container is oriented with the track and the shutter positioned below a horizontal plane that includes the rotational axis and a discharge passageway through which developer is discharged to outside of the developer supply container is formed at the bottommost side of the developer supply container, the track is positioned between the horizontal plane and a shutter in a direction perpendicular to the horizontal plane, the second position is closer to the horizontal plane than the first position is to the horizontal plane, the surface faces upward, and the track extends such that a plane perpendicular to the rotational axis and passing through the track passes through the end of the discharge passageway.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: February 20, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
  • Patent number: 11860569
    Abstract: A developer supply container includes a developer accommodating body and a developer discharging body in fluid communication with the developer accommodating body. A track is positioned at a side of the developer discharging body, with the track including a surface that extends from a first position to a second position. When the developer supply container is oriented with the track positioned below a horizontal plane that includes a rotational axis of the developer accommodating body and a discharge passageway through which developer is discharged to outside of the developer supply container is formed at the bottommost side of the developer supply container, the second position is closer to the horizontal plane than the first position is to the horizontal plane, the surface faces upward, and the track extends such that a plane perpendicular to the rotational axis and passing through the track passes through an end of the discharge passageway.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: January 2, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
  • Patent number: 11762314
    Abstract: A developing device includes a detachably mounted developer supply container configured to supply a developer with compressed air. A developer storage container includes a first opening portion through which the developer is supplied from the developer supply container to the developer storage container with the compressed air, a filter provided on a wall constituting the developer storage container to permit passage of air and restrict passage of the developer, and a stirring member to stir the developer. The developer storage container further includes a second opening portion through which the developer is supplied to a developing portion provided with a developing member. The filter is disposed between the first opening portion and the second opening portion in a rotational axis direction of the stirring member and disposed closer to the second opening portion.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: September 19, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ayatomo Okino, Toshiaki Nagashima, Katsuya Murakami, Fumio Tazawa, Yusuke Yamada
  • Publication number: 20230244155
    Abstract: In the case that a developer supply container is provided with a feeding portion for feeding a developer by receiving a rotational force and a pump portion for discharging the developer by reciprocation, and the rotational force and a reciprocating force are received from a main assembly side of an image forming apparatus, there is a liability that a driving connection is not properly established between a portion of the developer supply container for receiving the reciprocating force and a portion of the main assembly side for applying the reciprocating force. The developer supply container is provided with a drive converting mechanism for converting the rotational force received from the main assembly side to a force for operating a volume changing type pump.
    Type: Application
    Filed: April 11, 2023
    Publication date: August 3, 2023
    Inventors: Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa, Ayatomo Okino, Yusuke Yamada
  • Patent number: 11687027
    Abstract: A developer supply container includes a developer accommodating body configured to contain developer and a developer discharging body in fluid communication with the developer accommodating body. The developer discharging body has a discharge opening configured to form at least a part of a discharge passageway through which developer may be discharged to outside of the developer supply container. A track is positioned at a side of the developer discharging body. A cover is attached to the developer discharging body, with the cover being configured to cover the developer discharging body and the track, with the cover including a front wall that crosses a rotational axis of the developer accommodating body, and with the front wall being provided with a slit.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: June 27, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
  • Patent number: 11656560
    Abstract: A toner cartridge includes a first chamber configured to accommodate toner and a second chamber provided with an opening that is configured to discharge the toner. A feeding portion is configured to feed the toner from the first chamber toward the second chamber. An air flow generating portion is configured to generate an air flow and blow the air flow into the second chamber to thereby discharge the toner to outside of the cartridge through the opening. A rotatable coupling including a projection is configured to receive a rotational force from outside of the cartridge, the rotatable coupling being operatively connected to the feeding portion and the air flow generating portion so as to drive the feeding portion and the air flow generating portion with rotation of the rotatable coupling.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: May 23, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa, Ayatomo Okino, Yusuke Yamada
  • Publication number: 20230115524
    Abstract: A developer supply includes a developer accommodating body and a developer discharging body. A track is positioned at a side of the developer discharging body, with the track including a surface that extends from a first position to a second position. When the developer supply container is oriented with the track and the shutter positioned below a horizontal plane that includes the rotational axis and a discharge passageway through which developer is discharged to outside of the developer supply container is formed at the bottommost side of the developer supply container, the track is positioned between the horizontal plane and a shutter in a direction perpendicular to the horizontal plane, the second position is closer to the horizontal plane than the first position is to the horizontal plane, the surface faces upward, and the track extends such that a plane perpendicular to the rotational axis and passing through the track passes through the end of the discharge passageway.
    Type: Application
    Filed: December 6, 2022
    Publication date: April 13, 2023
    Inventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
  • Publication number: 20230097912
    Abstract: A developer supply container includes a developer accommodating body and a developer discharging body in fluid communication with the developer accommodating body. A track is positioned at a side of the developer discharging body, with the track including a surface that extends from a first position to a second position. When the developer supply container is oriented with the track positioned below a horizontal plane that includes a rotational axis of the developer accommodating body and a discharge passageway through which developer is discharged to outside of the developer supply container is formed at the bottommost side of the developer supply container, the second position is closer to the horizontal plane than the first position is to the horizontal plane, the surface faces upward, and the track extends such that a plane perpendicular to the rotational axis and passing through the track passes through an end of the discharge passageway.
    Type: Application
    Filed: December 6, 2022
    Publication date: March 30, 2023
    Inventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
  • Publication number: 20220413431
    Abstract: There are provided a rotatable developer accommodating portion accommodating a developer, a discharge end portion provided at a bottom side with a discharge opening for discharging the developer accommodated in the developer accommodating portion, an engaging portion 30 engageable with a portion-to-be-engaged 11b with a mounting operation of the developer supply container 1 to displace the portion-to-be-engaged 11b in an upward direction U to bring the receiving opening into fluid communication with the discharge opening and a swing shaft 41 rotatably supporting engaging portion 30 provided at such a position that opposite end portions of the engaging portion 30 a rotatable.
    Type: Application
    Filed: September 6, 2022
    Publication date: December 29, 2022
    Inventors: Masato Yamaoka, Toshiaki Nagashima
  • Patent number: 11487221
    Abstract: A toner cartridge includes a container accommodating toner and including a discharge opening. A pump is configured to alternately generate (i) a first air flow from outside to inside of the toner cartridge and (ii) a second air flow from inside to outside of the toner cartridge, with the pump being configured to supply the toner from the discharge opening to outside of the toner cartridge with the second air flow. The cartridge also includes a rotational force receiving portion configured to receive a rotational force from outside of the toner cartridge, with the rotational force receiving portion being configured to drive the pump with rotation of the rotational force receiving portion.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: November 1, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ayatomo Okino, Toshiaki Nagashima, Katsuya Murakami, Fumio Tazawa, Yusuke Yamada
  • Patent number: 11474474
    Abstract: There are provided a rotatable developer accommodating portion accommodating a developer, a discharge end portion provided at a bottom side with a discharge opening for discharging the developer accommodated in the developer accommodating portion, an engaging portion 30 engageable with a portion-to-be-engaged 11b with a mounting operation of the developer supply container 1 to displace the portion-to-be-engaged 11b in an upward direction U to bring the receiving opening into fluid communication with the discharge opening, and a swing shaft 41 rotatably supporting engaging portion 30 provided at such a position that opposite end portions of the engaging portion 30 a rotatable.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: October 18, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Yamaoka, Toshiaki Nagashima
  • Publication number: 20220082961
    Abstract: A developer supply container detachably mountable to a developer receiving apparatus and settable in a developer receiving apparatus by a setting operation including at least a rotation toward a setting position, includes a containing portion for containing the developer; a rotatable discharging member for discharging the developer out of said containing portion; drive transmitting means, engageable with a driving gear provided in said developer receiving apparatus and rotatable in a direction opposite the setting direction, for transmitting a rotating force from said driving gear to said discharging member.
    Type: Application
    Filed: November 12, 2021
    Publication date: March 17, 2022
    Inventors: Toshiaki Nagashima, Katsuya Murakami, Ayatomo Okino