Patents by Inventor Kiyoshi Sako

Kiyoshi Sako 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: 11852993
    Abstract: A toner container includes: a container that accommodates toner and transports, by rotating, the toner to an opening disposed at a first end portion in a direction of a rotation axis; a support portion that covers a periphery of the container near the first end portion, and supports the container to be rotatable in a circumferential direction, the support portion being attached to an image forming apparatus body and having a sealant interposed between the support portion and the container; and a fixing portion that fixes the container and the support portion to each other while the sealant is compressed when the support portion is rotated relative to the container in a first circumferential direction.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: December 26, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Kento Terashima, Kiyoshi Sako, Keiji Sanekata, Chihiro Hagiwara, Masayuki Shimoda
  • Publication number: 20230400796
    Abstract: A toner container includes: a container that accommodates toner and transports, by rotating, the toner to an opening disposed at a first end portion in a direction of a rotation axis; a support portion that covers a periphery of the container near the first end portion, and supports the container to be rotatable in a circumferential direction, the support portion being attached to an image forming apparatus body and having a sealant interposed between the support portion and the container; and a fixing portion that fixes the container and the support portion to each other while the sealant is compressed when the support portion is rotated relative to the container in a first circumferential direction.
    Type: Application
    Filed: November 10, 2022
    Publication date: December 14, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Kento TERASHIMA, Kiyoshi SAKO, Keiji SANEKATA, Chihiro HAGIWARA, Masayuki SHIMODA
  • Patent number: 11841637
    Abstract: A developing device includes: a storage part in which a developer is stored; a transport body that includes a spiral blade and transports the developer via a rotation thereof; a developing body to which the developer is supplied from the transport body; an attachment part which is disposed between the transport body and the developing body and includes an opening allowing the developer supplied from the transport body to the developing body to pass and to which a sealing member sealing the opening is detachably attached; and a connection portion which extends to cross the opening at a spiral angle of the blade as viewed from the developing body toward the transport body and of which one end portion and the other end portion are connected to the attachment part.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: December 12, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Kiyoshi Sako, Chihiro Hagiwara, Keiji Sanekata, Masayuki Shimoda, Kento Terashima
  • Publication number: 20230384709
    Abstract: A developing device includes: a storage part in which a developer is stored; a transport body that includes a spiral blade and transports the developer via a rotation thereof; a developing body to which the developer is supplied from the transport body; an attachment part which is disposed between the transport body and the developing body and includes an opening allowing the developer supplied from the transport body to the developing body to pass and to which a sealing member sealing the opening is detachably attached; and a connection portion which extends to cross the opening at a spiral angle of the blade as viewed from the developing body toward the transport body and of which one end portion and the other end portion are connected to the attachment part.
    Type: Application
    Filed: November 9, 2022
    Publication date: November 30, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Kiyoshi SAKO, Chihiro HAGIWARA, Keiji SANEKATA, Masayuki SHIMODA, Kento TERASHIMA
  • Patent number: 11822281
    Abstract: A sensor cleaning device includes: a cleaning member including an inclined portion that wipes and cleans an entire surface of a sensor, which includes a long side portion extending in a longitudinal direction and a short side portion extending in a lateral direction intersecting with the longitudinal direction, while moving relative to the surface of the sensor in the longitudinal direction of the surface of the sensor and is disposed obliquely to a wiping direction so that an upstream end portion of the inclined portion in the wiping direction is positioned outside the surface of the sensor in the lateral direction; and a moving mechanism that moves the cleaning member in the wiping direction and in a direction opposite to the wiping direction.
    Type: Grant
    Filed: September 20, 2022
    Date of Patent: November 21, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Keiji Sanekata, Chihiro Hagiwara, Kiyoshi Sako, Kento Terashima, Masayuki Shimoda
  • Publication number: 20230324830
    Abstract: A developing device includes a housing in which a circulation path is formed by a first path through which a developer passed to a developing roll flows, a second path disposed offset from the first path in a direction of gravity, and a pair of connecting ports connecting the first path and the second path; and a transport member that operates in the housing to transport the developer in a determined direction in the circulation path, in which the transport member transports the developer in the determined direction in a case where a load at a determined time during transportation in the determined direction is equal to or less than a reference value, transports the developer in a reverse direction to the determined direction in a case where the load at the determined time during transportation in the determined direction exceeds the reference value, and transports the developer in the determined direction in a case where a load during or after transportation in the reverse direction is equal to or less than
    Type: Application
    Filed: September 22, 2022
    Publication date: October 12, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Chihiro HAGIWARA, Kiyoshi SAKO, Keiji SANEKATA, Masayuki SHIMODA, Kento TERASHIMA
  • Publication number: 20230305479
    Abstract: A sensor cleaning device includes: a cleaning member including an inclined portion that wipes and cleans an entire surface of a sensor, which includes a long side portion extending in a longitudinal direction and a short side portion extending in a lateral direction intersecting with the longitudinal direction, while moving relative to the surface of the sensor in the longitudinal direction of the surface of the sensor and is disposed obliquely to a wiping direction so that an upstream end portion of the inclined portion in the wiping direction is positioned outside the surface of the sensor in the lateral direction; and a moving mechanism that moves the cleaning member in the wiping direction and in a direction opposite to the wiping direction.
    Type: Application
    Filed: September 20, 2022
    Publication date: September 28, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Keiji SANEKATA, Chihiro HAGIWARA, Kiyoshi SAKO, Kento TERASHIMA, Masayuki SHIMODA
  • Patent number: 10901342
    Abstract: A developing device includes an agitating transport device, a density detecting device, and an attracting device. The agitating transport device has a transport path and transports developer including a magnetic carrier while agitating the developer. The density detecting device detects density of the developer in the transport path of the agitating transport device. The attracting device is provided in the agitating transport device and has magnetic poles of one and another polarities exposed to the transport path facing the density detecting device so as to attract the developer by a magnetic force.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: January 26, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kiyoshi Sako, Eriko Kokubun
  • Patent number: 10877428
    Abstract: A developing device includes: a developer storage unit that stores a developer; a developer transporting unit that is connected to the developer storage unit through an opening portion; a closing member that openably closes the opening portion; and a loosening section that acts simultaneously with opening of the opening portion by the closing member to loosen the developer at an inner end portion of the developer storage unit, opposite to the opening portion.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: December 29, 2020
    Assignee: FUJI XEROX CO.. LTD.
    Inventors: Kiyoshi Sako, Eriko Kokubun
  • Publication number: 20200310338
    Abstract: A developing device includes: a developer storage unit that stores a developer; a developer transporting unit that is connected to the developer storage unit through an opening portion; a closing member that openably closes the opening portion; and a loosening section that acts simultaneously with opening of the opening portion by the closing member to loosen the developer at an inner end portion of the developer storage unit, opposite to the opening portion.
    Type: Application
    Filed: October 25, 2019
    Publication date: October 1, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kiyoshi SAKO, Eriko KOKUBUN
  • Publication number: 20200033759
    Abstract: A developing device includes an agitating transport device, a density detecting device, and an attracting device. The agitating transport device has a transport path and transports developer including a magnetic carrier while agitating the developer. The density detecting device detects density of the developer in the transport path of the agitating transport device. The attracting device is provided in the agitating transport device and has magnetic poles of one and another polarities exposed to the transport path facing the density detecting device so as to attract the developer by a magnetic force.
    Type: Application
    Filed: February 22, 2019
    Publication date: January 30, 2020
    Applicant: FUJI XEROX CO.,LTD.
    Inventors: Kiyoshi SAKO, Eriko KOKUBUN
  • Patent number: 10289027
    Abstract: A developing device includes a developer carrier that rotates while holding a developer, a developer container that supports the developer carrier and contains the developer, a transport member that is supported in the developer container and that transports the developer by rotating, and a conveying member that is disposed on the transport member and that conveys air in the developer container toward an exhaust port, which enables the air in the developer container to be exhausted outside, along with rotation of the transport member.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: May 14, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kiyoshi Sako, Masaki Suto
  • Publication number: 20180253030
    Abstract: A developing device includes a developer carrier that rotates while holding a developer, a developer container that supports the developer carrier and contains the developer, a transport member that is supported in the developer container and that transports the developer by rotating, and a conveying member that is disposed on the transport member and that conveys air in the developer container toward an exhaust port, which enables the air in the developer container to be exhausted outside, along with rotation of the transport member.
    Type: Application
    Filed: November 7, 2017
    Publication date: September 6, 2018
    Applicant: FUJI XEROX CO.,LTD.
    Inventors: Kiyoshi SAKO, Masaki SUTO
  • Patent number: 9201346
    Abstract: A powder transport device includes a transport path having a supply port. Powder supplied through the supply port together with old powder already contained in the transport path is transported through the transport path. The powder transport device also includes a transport member, which is rotatably disposed in the transport path and includes a rotational shaft and a spiral blade disposed on the rotational shaft. The powder supplied through the supply port and the old powder are transported toward a downstream side in a powder transporting direction and mixed with each other by rotation of the transport member. The transport path includes a regulating portion regulating transportation of powder that is a mixture of the powder supplied through the supply port and the old powder toward the downstream side. The transport member includes an accumulation portion that opposes the regulating portion and causes the powder to accumulate.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: December 1, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Kiyoshi Sako
  • Publication number: 20140294446
    Abstract: A powder transport device includes a transport path having a supply port. Powder supplied through the supply port together with old powder already contained in the transport path is transported through the transport path. The powder transport device also includes a transport member, which is rotatably disposed in the transport path and includes a rotational shaft and a spiral blade disposed on the rotational shaft. The powder supplied through the supply port and the old powder are transported toward a downstream side in a powder transporting direction and mixed with each other by rotation of the transport member. The transport path includes a regulating portion regulating transportation of powder that is a mixture of the powder supplied through the supply port and the old powder toward the downstream side. The transport member includes an accumulation portion that opposes the regulating portion and causes the powder to accumulate.
    Type: Application
    Filed: September 18, 2013
    Publication date: October 2, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Kiyoshi SAKO
  • Patent number: 4897240
    Abstract: A nuclear reactor includes a reactor vessel, a reactor core disposed within the vessel and including fuel rods, a primary cooling system disposed in the vessel and including a steam generator and a pump and a poison tank disposed within the vessel and containing high concentration boric acid solution. The poison tank surrounds the reactor core, and the steam generator surrounds a portion of the poison tank.
    Type: Grant
    Filed: May 2, 1989
    Date of Patent: January 30, 1990
    Assignee: Japan Atomic Energy Research Institute
    Inventor: Kiyoshi Sako