Patents by Inventor Akira SHIMODAIRA

Akira SHIMODAIRA 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: 20210011399
    Abstract: A sheet-member guide structure includes a first guide member that guides a sheet member from a fixing unit to a transport roller unit, the fixing unit fixing an image formed on the sheet member to the sheet member by heating the sheet member that is transported, the transport roller unit transporting the sheet member; and a second guide member that comes into contact with the sheet member to which the image has been fixed by the fixing unit and guides the sheet member to the transport roller unit, the second guide member being disposed downstream of the first guide member in a transporting direction in which the sheet member is transported and being made of a material having a thermal conductivity higher than a thermal conductivity of a material of the first guide member.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 14, 2021
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Akira SHIMODAIRA
  • 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
  • Patent number: 10768555
    Abstract: A cleaning device includes a scraping portion whose edge is pressed against a rotational body to which toner adheres and that scrapes the toner off the rotational body, and a container that contains the toner that has been scraped off the rotational body. The container has a through-hole that opens in a portion of the container facing the scraping portion and that allows a gas to flow from an inside of the container toward the scraping portion.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: September 8, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kazuya Ogishima, Akira Shimodaira
  • Publication number: 20200264539
    Abstract: A cleaning device includes a scraping portion whose edge is pressed against a rotational body to which toner adheres and that scrapes the toner off the rotational body, and a container that contains the toner that has been scraped off the rotational body. The container has a through-hole that opens in a portion of the container facing the scraping portion and that allows a gas to flow from an inside of the container toward the scraping portion.
    Type: Application
    Filed: July 15, 2019
    Publication date: August 20, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kazuya OGISHIMA, Akira SHIMODAIRA
  • Publication number: 20200264549
    Abstract: A paper guide member includes plural thread-shaped protrusions extending in a passing direction of paper to guide the paper after a toner image is transferred so that the paper passes with a distance secured from a static eliminator that eliminates static electricity in proximity to the paper in a width direction of the paper. The plural thread-shaped protrusions adjoin each other across a slit in the width direction of the paper. The plural thread-shaped protrusions include first thread-shaped protrusions each having a height at which the paper is supported and guided, and second thread-shaped protrusions each having a height smaller than the height of each of the first thread-shaped protrusions and present in regions on an outer side of both ends in the width direction of each passing region where paper having each width passes.
    Type: Application
    Filed: July 26, 2019
    Publication date: August 20, 2020
    Applicant: FUJI XEROX CO., Ltd.
    Inventor: Akira SHIMODAIRA
  • Patent number: 10747148
    Abstract: An image forming apparatus includes a transfer section, a guide section, and a plate material. The transfer section transfers an image to a recording material. The guide section guides the recording material toward the transfer section. The plate material is provided on the guide section, and is more easily elastically deformable than the guide section. The plate material guides the recording material, which is transported to the plate material, along a plate surface of the plate material. The plate material is thinner on a downstream side in a transport direction than on an upstream side.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: August 18, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hiroki Oka, Akira Shimodaira
  • Patent number: 10725404
    Abstract: A guide structure includes a contact member disposed downstream of a nipping unit in a transporting direction in which a recording medium is transported, the nipping unit nipping the recording medium between a heating roller, which heats an image formed on the recording medium that is transported, and a pressure roller, which presses the recording medium against the heating roller, the contact member protruding toward the recording medium and being rubbed against an image surface of the recording medium, on which the image is formed, while being in contact with the image surface over a region extending in a width direction of the recording medium and while the recording medium is nipped by the nipping portion.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: July 28, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Akira Shimodaira
  • 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: 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: 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: 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: 20200033765
    Abstract: A guide structure includes a contact member disposed downstream of a nipping unit in a transporting direction in which a recording medium is transported, the nipping unit nipping the recording medium between a heating roller, which heats an image formed on the recording medium that is transported, and a pressure roller, which presses the recording medium against the heating roller, the contact member protruding toward the recording medium and being rubbed against an image surface of the recording medium, on which the image is formed, while being in contact with the image surface over a region extending in a width direction of the recording medium and while the recording medium is nipped by the nipping portion.
    Type: Application
    Filed: January 29, 2019
    Publication date: January 30, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Akira SHIMODAIRA
  • Publication number: 20200026233
    Abstract: A guide structure includes a first guide member that guides a recording medium from a fixing unit to a transport roller unit, the fixing unit fixing an image formed on the recording medium to the recording medium by heating the recording medium that is transported, the transport roller unit transporting the recording medium; and a second guide member that comes into contact with the recording medium to which the image has been fixed by the fixing unit and guides the recording medium to the transport roller unit, the second guide member being disposed downstream of the first guide member in a transporting direction in which the recording medium is transported and being made of a material having a thermal conductivity higher than a thermal conductivity of a material of the first guide member.
    Type: Application
    Filed: January 24, 2019
    Publication date: January 23, 2020
    Applicant: Fuji Xerox Co., Ltd.
    Inventor: Akira SHIMODAIRA
  • 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
  • Publication number: 20190317425
    Abstract: A transfer device includes a transfer member that rotates to transfer an image held on an image carrier to a medium; an opposing member opposing the transfer member and forming, between the opposing member and the transfer member, a transfer area for an image to be transferred; a recovery member disposed in contact with the transfer member to electrically attract and recover an adherent adhering to the transfer member; and a bias-voltage applicating device that applies a transfer bias voltage to the transfer area via the recovery member, the transfer member, and the opposing member.
    Type: Application
    Filed: August 31, 2018
    Publication date: October 17, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Akira SHIMODAIRA
  • Patent number: 10317830
    Abstract: An image forming apparatus includes: a first image forming part that forms an image on one surface of a recording material; and a second image forming part provided at an upper side of the first image forming part in a gravitational direction, the second image forming part that transports the recording material received from the first image forming part such that the one surface faces downward in the gravitational direction and that forms an image on the one surface from a lower side in the gravitational direction.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: June 11, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yosuke Ninomiya, Keita Hashimoto, Sho Watanabe, Akira Shimodaira, Toshihiro Goda
  • Patent number: 10308465
    Abstract: A sheet transport device includes pre-transfer sheet-transport rollers that transport a sheet to a transfer position at which an unfixed image is transferred, the pre-transfer sheet-transport rollers including a first roller in which three or more separate rollers attached to a first shaft rotate, and a second roller in which three or more separate rollers attached to a second shaft are in contact with the separate rollers of the first roller and rotate. The hardness of an inner separate roller of the first roller is lower than the hardness of end separate rollers of the first roller. The outside diameter of an inner separate roller of the second roller is greater than the outside diameter of end separate rollers of the second roller.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: June 4, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Akira Shimodaira