Patents by Inventor Yukihiro Ichiki

Yukihiro Ichiki 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: 10871728
    Abstract: A cleaning device for a rotational body is provided. The cleaning device includes a scraping portion whose edge is pressed against a rotational body to which toner adheres. The scraping portion scrapes the toner off the rotational body. The cleaning device also includes a guide portion that guides a recording medium toward the rotational body, and a guide support portion that supports the guide portion. The guide support portion is disposed at a position separated from the scraping portion in a state in which the guide support portion is pressed by the guide portion that is guiding the recording medium.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: December 22, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kazuya Ogishima, Sota Hara, Kazuhiro Saito, Yukihiro Ichiki, Hiroki Shiba, Akira Shimodaira
  • Publication number: 20200379370
    Abstract: A cleaning device for a rotational body is provided. The cleaning device includes a scraping portion whose edge is pressed against a rotational body to which toner adheres. The scaping portion scrapes the toner off the rotational body. The cleaning device also includes a guide portion that guides a recording medium toward the rotational body, and a guide support portion that supports the guide portion. The guide support portion is disposed at a position separated from the scraping portion in a state in which the guide support portion is pressed by the guide portion that is guiding the recording medium.
    Type: Application
    Filed: September 24, 2019
    Publication date: December 3, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kazuya OGISHIMA, Sota HARA, Kazuhiro SAITO, Yukihiro ICHIKI, Hiroki SHIBA, Akira SHIMODAIRA
  • Patent number: 10852669
    Abstract: An image forming apparatus includes: a transport path that transports an image forming medium in a top-bottom direction; a first image forming unit including a first intermediate transfer belt, which is disposed so as to face the transport path, to which toner images formed in multiple first toner-image forming units are transferred, and from which the toner images are transferred to the medium transported along the transport path; a second image forming unit including a second intermediate transfer belt, which is disposed upstream of the first image forming unit in a medium transport direction so as to face the transport path, to which toner images formed in multiple second toner-image forming units are transferred, and from which the toner images are transferred to the medium transported along the transport path; and a ventilation path formed between the first image forming unit and the second image forming unit, which are spaced apart.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: December 1, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Toshihiro Goda, Yukihiro Ichiki, Akira Shimodaira, Keita Hashimoto, Masaki Suto
  • Publication number: 20200257231
    Abstract: A paper ejection device includes: an ejection portion that ejects sheets of paper; a housing portion that houses the ejected sheets of paper in a sequentially stacked state; and a guiding portion that guides the sheets of paper, before being ejected, to the ejection portion while curving the sheets of paper. The housing portion is adjustable to plural angles including at least an angle at which the ejected sheets of paper are housed while being curved in a direction opposite to a direction in which the sheets of paper have been curved by the guiding portion.
    Type: Application
    Filed: August 7, 2019
    Publication date: August 13, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Fumiyuki HONDA, Yukihiro Ichiki, Sota Hara, Kenichi Ishikura, Kazuhiro Tobita, Sho Ogawa
  • Patent number: 10670996
    Abstract: An image forming apparatus includes: a first forming unit that forms a superimposed toner image, in which yellow, magenta, and cyan toner images are superimposed on one another, on a first intermediate transfer unit; a second forming unit that is located downstream of the first forming unit in a recording-medium transport direction and that forms a black toner image on a second intermediate transfer unit; a first transfer part that transfers the superimposed toner image formed on the first intermediate transfer unit by the first forming unit to a recording medium; and a second transfer part that is located downstream of the first transfer part in the recording-medium transport direction and that transfers, in a superimposed manner, the black toner image formed on the second intermediate transfer unit by the second forming unit to the superimposed toner image on the recording medium.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: June 2, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Keita Hashimoto, Yukihiro Ichiki, Masaki Suto, Akira Shimodaira, Toshihiro Goda
  • Publication number: 20200096912
    Abstract: An image forming apparatus includes: a transport path that transports an image forming medium in a top-bottom direction; a first image forming unit including a first intermediate transfer belt, which is disposed so as to face the transport path, to which toner images formed in multiple first toner-image forming units are transferred, and from which the toner images are transferred to the medium transported along the transport path; a second image forming unit including a second intermediate transfer belt, which is disposed upstream of the first image forming unit in a medium transport direction so as to face the transport path, to which toner images formed in multiple second toner-image forming units are transferred, and from which the toner images are transferred to the medium transported along the transport path; and a ventilation path formed between the first image forming unit and the second image forming unit, which are spaced apart.
    Type: Application
    Filed: March 21, 2019
    Publication date: March 26, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Toshihiro GODA, Yukihiro ICHIKI, Akira SHIMODAIRA, Keita HASHIMOTO, Masaki SUTO
  • Publication number: 20200096915
    Abstract: An image forming apparatus includes: a first forming unit that forms a superimposed toner image, in which yellow, magenta, and cyan toner images are superimposed on one another, on a first intermediate transfer unit; a second forming unit that is located downstream of the first forming unit in a recording-medium transport direction and that forms a black toner image on a second intermediate transfer unit; a first transfer part that transfers the superimposed toner image formed on the first intermediate transfer unit by the first forming unit to a recording medium; and a second transfer part that is located downstream of the first transfer part in the recording-medium transport direction and that transfers, in a superimposed manner, the black toner image formed on the second intermediate transfer unit by the second forming unit to the superimposed toner image on the recording medium.
    Type: Application
    Filed: March 25, 2019
    Publication date: March 26, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Keita HASHIMOTO, Yukihiro ICHIKI, Masaki SUTO, Akira SHIMODAIRA, Toshihiro GODA
  • Publication number: 20200073293
    Abstract: An image forming apparatus includes a transport belt, a first intermediate transfer belt, and a second intermediate transfer belt. The transport belt is disposed along a transport path extending in a vertical direction. The transport belt is configured to transport a recording medium while coming into contact with one surface of the recording medium. The first intermediate transfer belt is configured to sandwich the recording medium together with the transport belt. An image is transferred from the first intermediate transfer belt to the recording medium. The second intermediate transfer belt is disposed above the first intermediate transfer belt. The second intermediate transfer belt is configured to sandwich, together with the transport belt, the recording medium which is in a state where the recording medium is sandwiched between the first intermediate transfer belt and the transport belt. An image being transferred from the second intermediate transfer belt to the recording medium.
    Type: Application
    Filed: August 1, 2019
    Publication date: March 5, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yukihiro ICHIKI, Akira SHIMODAIRA, Keita HASHIMOTO, Toshihiro GODA, Masaki SUTO
  • Publication number: 20190384212
    Abstract: An image forming apparatus includes a fixing unit that transports a sheet of paper carrying an unfixed image through a nip part to fix the unfixed image to the sheet, a first guide unit coming into contact with a side of the sheet that guides transport of the sheet, and a second guide unit coming into contact with an opposite side of the sheet that guides transport of the sheet. The first guide unit has a recess serving as a guide part, the recess being recessed in a direction away from a transport path of the sheet. The second guide unit has a bending part serving as a guide part, the bending part having a shape of a circular arc in cross-section, the bending part being disposed such that at least a portion of the bending part lies inside the recess.
    Type: Application
    Filed: November 2, 2018
    Publication date: December 19, 2019
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Yukihiro Ichiki, Kyogo Soshi, Akira Shimodaira, Sota Hara, Yosuke Ninomiya
  • Patent number: 10509345
    Abstract: An image forming apparatus includes a fixing unit that transports a sheet of paper carrying an unfixed image through a nip part to fix the unfixed image to the sheet, a first guide unit coming into contact with a side of the sheet that guides transport of the sheet, and a second guide unit coming into contact with an opposite side of the sheet that guides transport of the sheet. The first guide unit has a recess serving as a guide part, the recess being recessed in a direction away from a transport path of the sheet. The second guide unit has a bending part serving as a guide part, the bending part having a shape of a circular arc in cross-section, the bending part being disposed such that at least a portion of the bending part lies inside the recess.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 17, 2019
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yukihiro Ichiki, Kyogo Soshi, Akira Shimodaira, Sota Hara, Yosuke Ninomiya
  • Patent number: 10397489
    Abstract: [Object] To improve the quality of an acquired image by detecting each piece of color information of red (R), green (G), and blue (B) components to effectively utilize the dynamic range of the image sensor while using a single-plate image sensor. [Solution] Provided is a light source control device including: a light source control unit configured to cause a plurality of narrowband light sources including at least a red light source, a green light source, and a blue light source to emit light on a time division basis; and a light quantity setting unit configured to set an output of each of the narrowband light sources on the basis of image information that is frame-sequentially detected by a monochrome single-plate image sensor configured to capture a reflected image of a subject illuminated with light emitted from the narrowband light source.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: August 27, 2019
    Assignee: SONY CORPORATION
    Inventors: Hiroshi Ichiki, Hisakazu Shiraki, Yukihiro Nakamura, Kentaro Fukazawa, Takeshi Miyai, Kenta Yamaguchi, Daisuke Kikuchi
  • Patent number: 9933748
    Abstract: An image forming apparatus includes one or plural forming devices that form respective images on a recording medium that is being transported, a fixing device provided on a downstream side with respect to at least one of the forming devices in a direction of transport of the recording medium and that fixes the images formed on the recording medium, a delivering device that receives the recording medium transported in a first direction and discharges the recording medium in a second direction that is different from the first direction, and a supplying device that supplies the recording medium to any of the forming devices or to the delivering device. The forming devices, the fixing device, the delivering device, and the supplying device have respective housings and are each joinable to any of the other devices.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: April 3, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Mikio Yamaguchi, Yukihiro Ichiki, Akira Arai, Sho Watanabe
  • Publication number: 20170343939
    Abstract: An image forming apparatus includes one or plural forming devices that form respective images on a recording medium that is being transported, a fixing device provided on a downstream side with respect to at least one of the forming devices in a direction of transport of the recording medium and that fixes the images formed on the recording medium, a delivering device that receives the recording medium transported in a first direction and discharges the recording medium in a second direction that is different from the first direction, and a supplying device that supplies the recording medium to any of the forming devices or to the delivering device. The forming devices, the fixing device, the delivering device, and the supplying device have respective housings and are each joinable to any of the other devices.
    Type: Application
    Filed: November 18, 2016
    Publication date: November 30, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Mikio YAMAGUCHI, Yukihiro ICHIKI, Akira ARAI, Sho WATANABE
  • Patent number: 9829846
    Abstract: A sheet transport apparatus includes a first transport device, a second transport device, a first guide member, and a second guide member. The first transport device transports a sheet. The second transport device is disposed downstream of the first transport device in a transport direction and transports the sheet. The first guide member is disposed between the first and second transport device such that the second transport device is closer to the first guide member than the first transport device and guides the sheet to the second transport device. The second guide member is disposed between the first and second transport device such that the first transport device is closer to the second guide member than the second transport device and guides the sheet to the first guide member while curving the sheet.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: November 28, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Akira Shimodaira, Yukihiro Ichiki, Keita Hashimoto, Motoyuki Yagi
  • Publication number: 20170248886
    Abstract: A fixing device includes a first belt that contacts a developer image on a recording medium; a second belt that sandwiches the recording medium with the first belt and hence forms a nip region extending in a transport direction of the recording medium; a rotational body that is provided inside the first belt in a region at a downstream side in the transport direction of the nip region, rotates, and turns the first belt; a pressing member that is provided inside the second belt and presses the second belt toward the rotational body; and a heating unit that is provided inside the first belt in a region at an upstream side in the transport direction of the nip region in a non-contact manner with respect to the first belt, and heats the developer image on the recording medium.
    Type: Application
    Filed: July 25, 2016
    Publication date: August 31, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yukihiro ICHIKI, Motoyuki YAGI
  • Patent number: 9746804
    Abstract: A fixing device includes a first belt that contacts a developer image on a recording medium; a second belt that sandwiches the recording medium with the first belt and hence forms a nip region extending in a transport direction of the recording medium; a rotational body that is provided inside the first belt in a region at a downstream side in the transport direction of the nip region, rotates, and turns the first belt; a pressing member that is provided inside the second belt and presses the second belt toward the rotational body; and a heating unit that is provided inside the first belt in a region at an upstream side in the transport direction of the nip region in a non-contact manner with respect to the first belt, and heats the developer image on the recording medium.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: August 29, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yukihiro Ichiki, Motoyuki Yagi
  • Publication number: 20170052496
    Abstract: A sheet transport apparatus includes a first transport device, a second transport device, a first guide member, and a second guide member. The first transport device transports a sheet. The second transport device is disposed downstream of the first transport device in a transport direction and transports the sheet. The first guide member is disposed between the first and second transport device such that the second transport device is closer to the first guide member than the first transport device and guides the sheet to the second transport device. The second guide member is disposed between the first and second transport device such that the first transport device is closer to the second guide member than the second transport device and guides the sheet to the first guide member while curving the sheet.
    Type: Application
    Filed: January 14, 2016
    Publication date: February 23, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Akira SHIMODAIRA, Yukihiro ICHIKI, Keita HASHIMOTO, Motoyuki YAGI
  • Patent number: 9465334
    Abstract: A fixing device includes a fixing part in which an image on a recording material is fixed, and a guiding member provided on an upstream side with respect to the fixing part in a direction of transport of the recording material. The guiding member guides the recording material toward the fixing part while, if the recording material that is being transported is skewed, reducing a speed of movement of a preceding part of a leading end of the recording material. The preceding part is ahead of any other part of the leading end of the recording material.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: October 11, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Motoyuki Yagi, Yukihiro Ichiki, Yusuke Sato
  • Patent number: 9382089
    Abstract: A paper transporting device includes a driving roller member, a driven roller member, a first guiding member and a second guiding member. The driving roller member is rotated. The driven roller member is rotated in contact with the driving roller member. The first guiding member is disposed on a driving roller member side, and guides a paper to a contact portion in which the driving roller member and the driven roller member are in contact with each other. The second guiding member is disposed on a driven roller member side, and guides the paper to the contact portion. The second guiding member partially protrudes inward in a radial direction of the driving roller member from an outer peripheral surface of the driving roller member at a downstream side in a paper transporting direction of the contact portion.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: July 5, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasuki Tanaka, Yukihiro Ichiki, Motoyuki Yagi, Tahei Nakamura
  • Patent number: 9164449
    Abstract: An image forming apparatus includes an image forming member; a heating member; an opposing member that opposes the heating member; an urging member having one end attached to a first support member that supports the opposing member, the urging member urging the opposing member so that the opposing member presses a recording medium against the heating member; a moving member that moves from a closed position to an open position, a space accommodating the heating and opposing members being closed when the moving member is at the closed position and opened when the moving member is at the open position; and a cancelling member to which the other end of the urging member is attached and that is rotatably attached to a second support member that supports the heating member, the cancelling member rotating from the closed position to cancel a pressing force with which the recording medium is pressed.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: October 20, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Keita Hashimoto, Yukihiro Ichiki