Patents by Inventor Akihito Kamura

Akihito Kamura 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: 11150598
    Abstract: An engaging portion 30 is provided which is engageable with a portion-to-be-engaged 11b a displaceable integrally with a developer receiving portion 11 with a mounting operation of a developer supply container 1 to displace 11 in an upward direction U to bring a receiving opening into communication with a discharge opening. An engaging portion 30 includes a first engagement surface 31a extending in the upward direction U as going toward a developer accommodating portion of the developer supply container 1, and a second engagement surface 32a provided at a position closer to the developer accommodating portion than the first engagement surface 31a. When the receiving opening in communication with a shutter opening, a height of an end of the first engagement surface 31a close to the developer accommodating portion is higher than the second engagement surface 32a.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: October 19, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiromasa Katayama, Manabu Jimba, Akihito Kamura, Katsuya Murakami
  • Publication number: 20210048775
    Abstract: There are provided a developer accommodating portion for accommodating the developer, a discharge portion formed with a discharge opening for discharging the developer accommodated in the developer accommodating portion, and an engaging portion 30. The engaging portion 30 is engaged with an engaged portion 11b with a mounting operation of a developer supply container 1 to displace a developer receiving portion 11 in an upward direction U so that the receiving opening communicates with the discharge opening. The engaging portion 30 has a holding portion 31 which is provided rotatably about a rotation shaft 41 and is provided with holding portion 21 to be engaged with the engaged portion 11b to hold the engaged portion 11b. With the mounting operation, the engaging portion 30 rotates about the rotation shaft 41 so that the engaged portion 11b held by the holding portion 31 moves upward U.
    Type: Application
    Filed: November 5, 2020
    Publication date: February 18, 2021
    Inventors: Ayatomo Okino, Hiromasa Katayama, Nobuyuki Yomoda, Masato Yamaoka, Akihito Kamura, Koji Katayama, Tsukasa Mine, Katsuya Murakami, Keisuke Isobe, Shogo Yamasaki
  • Patent number: 10884371
    Abstract: There are provided a developer accommodating portion for accommodating the developer, a discharge portion formed with a discharge opening for discharging the developer accommodated in the developer accommodating portion, and an engaging portion 30. The engaging portion 30 is engaged with an engaged portion 11b with a mounting operation of a developer supply container 1 to displace a developer receiving portion 11 in an upward direction U so that the receiving opening communicates with the discharge opening. The engaging portion 30 has a holding portion 31 which is provided rotatably about a rotation shaft 41 and is provided with holding portion 21 to be engaged with the engaged portion 11b to hold the engaged portion 11b. With the mounting operation, the engaging portion 30 rotates about the rotation shaft 41 so that the engaged portion 11b held by the holding portion 31 moves upward U.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: January 5, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ayatomo Okino, Hiromasa Katayama, Nobuyuki Yomoda, Masato Yamaoka, Akihito Kamura, Koji Katayama, Tsukasa Mine, Katsuya Murakami, Keisuke Isobe, Shogo Yamasaki
  • Patent number: 10852688
    Abstract: There are provided a developer accommodating portion for accommodating the developer, a discharge portion formed with a discharge opening for discharging the developer accommodated in the developer accommodating portion, and an engaging portion 30. The engaging portion 30 is engaged with an engaged portion 11b with a mounting operation of a developer supply container 1 to displace a developer receiving portion 11 in an upward direction U so that the receiving opening communicates with the discharge opening. The engaging portion 30 has a holding portion 31 which is provided rotatably about a rotation shaft 41 and is provided with holding portion 21 to be engaged with the engaged portion 11b to hold the engaged portion 11b. With the mounting operation, the engaging portion 30 rotates about the rotation shaft 41 so that the engaged portion 11b held by the holding portion 31 moves upward U.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: December 1, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ayatomo Okino, Hiromasa Katayama, Nobuyuki Yomoda, Masato Yamaoka, Akihito Kamura, Koji Katayama, Tsukasa Mine, Katsuya Murakami, Keisuke Isobe, Shogo Yamasaki
  • Publication number: 20200341405
    Abstract: With a mounting operation of a supply container, a supported portion 11b of a developer receiving portion 11 is supported by a receipt supporting portion 30c of a lifting portion 30. With further mounting operation, a shutter sliding portion 30b of the lifting portion 30 slides on a shutter inclined portion 4f of a shutter 4. The developer receiving portion 11 is displaced so as to bring a receiving opening into communication with a discharge opening by operating, using the shutter 4, the lifting portion 30 supporting the supported portion 11b of the developer receiving portion 11. By this, a load required for movement of the developer receiving portion 11 is reduced to achieve smooth mounting of the supply container.
    Type: Application
    Filed: July 8, 2020
    Publication date: October 29, 2020
    Inventors: Yohei Gamo, Tsukasa Mine, Akihito Kamura, Koji Katayama, Masato Yamaoka, Yusuke Oizumi, Manabu Jimba, Ayatomo Okino, Nobuyuki Yomoda, Keisuke Isobe
  • Patent number: 10725400
    Abstract: With a mounting operation of a supply container, a supported portion 11b of a developer receiving portion 11 is supported by a receipt supporting portion 30c of a lifting portion 30. With further mounting operation, a shutter sliding portion 30b of the lifting portion 30 slides on a shutter inclined portion 4f of a shutter 4. The developer receiving portion 11 is displaced so as to bring a receiving opening into communication with a discharge opening by operating, using the shutter 4, the lifting portion 30 supporting the supported portion 11b of the developer receiving portion 11. By this, a load required for movement of the developer receiving portion 11 is reduced to achieve smooth mounting of the supply container.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: July 28, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yohei Gamo, Tsukasa Mine, Akihito Kamura, Koji Katayama, Masato Yamaoka, Yusuke Oizumi, Manabu Jimba, Ayatomo Okino, Nobuyuki Yomoda, Keisuke Isobe
  • Publication number: 20200225603
    Abstract: Provided is a developer replenishing container including: a developer containing part capable of containing a developer; a discharge port through which the developer contained in the developer containing part is discharged; a conveyance part conveying the developer in the developer containing part by rotating; and a displacement part displaceable in conjunction with rotation of the conveyance part in the developer in a vicinity of the discharge port, and including a moving member capable of reciprocating in conjunction with the rotation of the conveyance part and a biasing member which biases the moving member and which is expandable according to movement of the moving member.
    Type: Application
    Filed: March 25, 2020
    Publication date: July 16, 2020
    Inventors: Nobuyuki Yomoda, Yusuke Yamada, Ayatomo Okino, Manabu Jimba, Akihito Kamura
  • Publication number: 20200166871
    Abstract: A developer supply container 1 detachably mountable to a developer supplying apparatus 201 includes a developer accommodating portion 2 capable of accommodating a developer, a discharge opening 4a for discharging the developer accommodated in the developer accommodating portion 2 toward the developer supplying apparatus 201, a pump portion 3a for effecting a discharging operation through the discharge opening 4a, a communicating portion 4d provided at a position contacting the discharge opening 4a and capable of storing a constant amount of the developer, and a regulating portion 7 capable of taking a developer flow regulating state in which the flow of the developer into the communicating portion 4d and a developer flow non-regulating state in which the entering of the developer is not regulated, the regulating portion 7 taking the developer flow regulating state in a discharging operation of the pump portion 3a, wherein the regulating portion 7 is provided with an air flow path 7g for communicating between
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Inventors: Nobuyuki Yomoda, Ayatomo Okino, Manabu Jimba, Akihito Kamura, Takashi Enokuchi
  • Publication number: 20200159163
    Abstract: An engaging portion 30 is provided which is engageable with a portion-to-be-engaged 11b a displaceable integrally with a developer receiving portion 11 with a mounting operation of a developer supply container 1 to displace 11 in an upward direction U to bring a receiving opening into communication with a discharge opening. An engaging portion 30 includes a first engagement surface 31a extending in the upward direction U as going toward a developer accommodating portion of the developer supply container 1, and a second engagement surface 32a provided at a position closer to the developer accommodating portion than the first engagement surface 31a. When the receiving opening in communication with a shutter opening, a height of an end of the first engagement surface 31a close to the developer accommodating portion is higher than the second engagement surface 32a.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Inventors: Hiromasa Katayama, Manabu Jimba, Akihito Kamura, Katsuya Murakami
  • Patent number: 10627742
    Abstract: A developer container includes a developer accommodating body, a discharge body including a developer discharge opening, and a rotatable member including a plurality of rotation portions arranged in a rotational direction of the rotatable member with a space therebetween. In addition, a storing portion stores a predetermined amount of the developer to be discharged and forms a communication path for fluid-communication between an inside of the discharge body and the discharge opening. A coil spring is provided in the communication path and contractable and expandable in a direction of the communication path, with the coil spring capable of being urged by the rotation portions while the rotatable member rotates.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: April 21, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Nobuyuki Yomoda, Yusuke Yamada, Ayatomo Okino, Manabu Jimba, Akihito Kamura
  • Patent number: 10620566
    Abstract: A developer supply container 1 detachably mountable to a developer supplying apparatus 201 includes a developer accommodating portion 2 capable of accommodating a developer, a discharge opening 4a for discharging the developer accommodated in the developer accommodating portion 2 toward the developer supplying apparatus 201, a pump portion 3a for effecting a discharging operation through the discharge opening 4a, a communicating portion 4d provided at a position contacting the discharge opening 4a and capable of storing a constant amount of the developer, and a regulating portion 7 capable of taking a developer flow regulating state in which the flow of the developer into the communicating portion 4d and a developer flow non-regulating state in which the entering of the developer is not regulated, the regulating portion 7 taking the developer flow regulating state in a discharging operation of the pump portion 3a, wherein the regulating portion 7 is provided with an air flow path 7g for communicating between
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: April 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuyuki Yomoda, Ayatomo Okino, Manabu Jimba, Akihito Kamura, Takashi Enokuchi
  • Patent number: 10558161
    Abstract: An engaging portion 30 is provided which is engageable with a portion-to-be-engaged 11b a displaceable integrally with a developer receiving portion 11 with a mounting operation of a developer supply container 1 to displace 11 in an upward direction U to bring a receiving opening into communication with a discharge opening. An engaging portion 30 includes a first engagement surface 31a extending in the upward direction U as going toward a developer accommodating portion of the developer supply container 1, and a second engagement surface 32a provided at a position closer to the developer accommodating portion than the first engagement surface 31a. When the receiving opening in communication with a shutter opening, a height of an end of the first engagement surface 31a close to the developer accommodating portion is higher than the second engagement surface 32a.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: February 11, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiromasa Katayama, Manabu Jimba, Akihito Kamura, Katsuya Murakami
  • Publication number: 20190212694
    Abstract: An engaging portion 30 is provided which is engageable with a portion-to-be-engaged 11b a displaceable integrally with a developer receiving portion 11 with a mounting operation of a developer supply container 1 to displace 11 in an upward direction U to bring a receiving opening into communication with a discharge opening. An engaging portion 30 includes a first engagement surface 31a extending in the upward direction U as going toward a developer accommodating portion of the developer supply container 1, and a second engagement surface 32a provided at a position closer to the developer accommodating portion than the first engagement surface 31a. When the receiving opening in communication with a shutter opening, a height of an end of the first engagement surface 31a close to the developer accommodating portion is higher than the second engagement surface 32a.
    Type: Application
    Filed: March 15, 2019
    Publication date: July 11, 2019
    Inventors: Hiromasa Katayama, Manabu Jimba, Akihito Kamura, Katsuya Murakami
  • Publication number: 20190212693
    Abstract: There are provided a developer accommodating portion for accommodating the developer, a discharge portion formed with a discharge opening for discharging the developer accommodated in the developer accommodating portion, and an engaging portion 30. The engaging portion 30 is engaged with an engaged portion 11b with a mounting operation of a developer supply container 1 to displace a developer receiving portion 11 in an upward direction U so that the receiving opening communicates with the discharge opening. The engaging portion 30 has a holding portion 31 which is provided rotatably about a rotation shaft 41 and is provided with holding portion 21 to be engaged with the engaged portion 11b to hold the engaged portion 11b. With the mounting operation, the engaging portion 30 rotates about the rotation shaft 41 so that the engaged portion 11b held by the holding portion 31 moves upward U.
    Type: Application
    Filed: March 15, 2019
    Publication date: July 11, 2019
    Inventors: Ayatomo Okino, Hiromasa Katayama, Nobuyuki Yomoda, Masato Yamaoka, Akihito Kamura, Koji Katayama, Tsukasa Mine, Katsuya Murakami, Keisuke Isobe, Shogo Yamasaki
  • Publication number: 20190212672
    Abstract: With a mounting operation of a supply container, a supported portion 11b of a developer receiving portion 11 is supported by a receipt supporting portion 30c of a lifting portion 30. With further mounting operation, a shutter sliding portion 30b of the lifting portion 30 slides on a shutter inclined portion 4f of a shutter 4. The developer receiving portion 11 is displaced so as to bring a receiving opening into communication with a discharge opening by operating, using the shutter 4, the lifting portion 30 supporting the supported portion 11b of the developer receiving portion 11. By this, a load required for movement of the developer receiving portion 11 is reduced to achieve smooth mounting of the supply container.
    Type: Application
    Filed: March 15, 2019
    Publication date: July 11, 2019
    Inventors: Yohei Gamo, Tsukasa Mine, Akihito Kamura, Koji Katayama, Masato Yamaoka, Yusuke Oizumi, Manabu Jimba, Ayatomo Okino, Nobuyuki Yomoda, Keisuke Isobe
  • Publication number: 20190187587
    Abstract: Provided is a developer replenishing container including: a developer containing part capable of containing a developer; a discharge port through which the developer contained in the developer containing part is discharged; a conveyance part conveying the developer in the developer containing part by rotating; and a displacement part displaceable in conjunction with rotation of the conveyance part in the developer in a vicinity of the discharge port, and including a moving member capable of reciprocating in conjunction with the rotation of the conveyance part and a biasing member which biases the moving member and which is expandable according to movement of the moving member.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Inventors: Nobuyuki Yomoda, Yusuke Yamada, Ayatomo Okino, Manabu Jimba, Akihito Kamura
  • Patent number: 10261441
    Abstract: A developer supply container includes a developer accommodating chamber capable of accommodating developer, a storage portion provided in the developer accommodating chamber and capable of storing a predetermined amount of the developer to be discharged through a discharge opening, and a pump portion actable on the storage portion. A suppressing portion is provided, with the suppressing portion being capable of suppressing air directed toward the developer accommodating chamber from the pump portion, and with the suppressing portion permitting supply of air from the pump portion to the storage portion in a discharge operation.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: April 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Jimba, Ayatomo Okino, Nobuyuki Yomoda, Yusuke Oizumi, Akihito Kamura
  • Patent number: 10088775
    Abstract: A developer supply container detachably mountable to a developer supplying apparatus includes a pump portion provided to act at least on said developer discharging chamber and having a volume changeable with expansion and contraction with reciprocation, the cam groove for converting the rotational force received by a gear into a force for decreasing the volume of pump portion, a cam groove for converting the received force into a force for increasing the volume of the pump portion, a cam groove not converting the received force for operating the pump portion, and a phase detecting portion for stopping the rotation of a feeding portion using one of said cam grooves.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: October 2, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihito Kamura, Ayatomo Okino, Manabu Jimba
  • Publication number: 20180253031
    Abstract: A developer container includes a developer containing portion capable of containing a developer, a discharge port through which the developer contained in the developer containing portion is discharged, and a storing portion configured to store the developer to be discharged through the discharge port. The storing portion is in fluid communication with an inside of the developer containing portion and the discharge port. In addition, a displacement portion is provided in the storing portion and arranged to be displaceable, and includes a displaceable shaft portion configured to extend along the storing portion and a coil spring which biases the displaceable shaft portion. A rotatable member is provided above the storing portion and has first and second portions arranged in a rotational direction of the rotatable member, the first portion being contactable to a part of the shaft portion and the second portion not being contactable to the shaft portion.
    Type: Application
    Filed: May 3, 2018
    Publication date: September 6, 2018
    Inventors: Nobuyuki Yomoda, Yusuke Yamada, Ayatomo Okino, Manabu Jimba, Akihito Kamura
  • Patent number: 9996028
    Abstract: A developer container includes a developer containing portion capable of containing a developer, a discharge port through which the developer contained in the developer containing portion is discharged, and a storing portion configured to store the developer to be discharged through the discharge port. The storing portion is in fluid communication with an inside of the developer containing portion and the discharge port. In addition, a displacement portion is provided in the storing portion and arranged to be displaceable, and includes a displaceable shaft portion configured to extend along the storing portion and a coil spring which biases the displaceable shaft portion. A rotatable member is provided above the storing portion and has first and second portions arranged in a rotational direction of the rotatable member, the first portion being contactable to a part of the shaft portion and the second portion not being contactable to the shaft portion.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: June 12, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Nobuyuki Yomoda, Yusuke Yamada, Ayatomo Okino, Manabu Jimba, Akihito Kamura