Patents by Inventor Shohtaro OKAMOTO

Shohtaro OKAMOTO 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).

  • Belt rotating device, transfer device, and image forming apparatus
    Patent number: 10578997
    Abstract: A belt rotating device includes: a meandering correction roller that is rotatably supported within a support frame and is one of a plurality of rollers that stretch an endless belt; a supporting portion that is provided at the support frame and supports a rotating shaft of the meandering correction roller so as to be able to incline the rotating shaft of the meandering correction roller in a one direction; a collar member that is provided on the rotating shaft of the meandering correction roller, contacts the side end of the endless belt in which meandering has occurred, and moves in an axial direction; and an inclination guide portion that is supported by the support frame and has an inclined surface downward and inclined with respect to the shaft of the meandering correction roller, in a position in which the contact portion of the collar member contacts the inclination guide portion.
    Type: Grant
    Filed: July 13, 2019
    Date of Patent: March 3, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shohtaro Okamoto
  • BELT ROTATING DEVICE, TRANSFER DEVICE, AND IMAGE FORMING APPARATUS
    Publication number: 20190339637
    Abstract: A belt rotating device includes: a meandering correction roller that is rotatably supported within a support frame and is one of a plurality of rollers that stretch an endless belt; a supporting portion that is provided at the support frame and supports a rotating shaft of the meandering correction roller so as to be able to incline the rotating shaft of the meandering correction roller in a one direction; a collar member that is provided on the rotating shaft of the meandering correction roller, contacts the side end of the endless belt in which meandering has occurred, and moves in an axial direction; and an inclination guide portion that is supported by the support frame and has an inclined surface downward and inclined with respect to the shaft of the meandering correction roller, in a position in which the contact portion of the collar member contacts the inclination guide portion.
    Type: Application
    Filed: July 13, 2019
    Publication date: November 7, 2019
    Inventor: Shohtaro OKAMOTO
  • Belt rotating device, transfer device, and image forming apparatus
    Patent number: 10386756
    Abstract: A belt rotating device includes: a meandering correction roller that is rotatably supported within a support frame and is one of a plurality of rollers that stretch an endless belt; a supporting portion that is provided at the support frame and supports a rotating shaft of the meandering correction roller so as to be able to incline the rotating shaft of the meandering correction roller in a one direction; a collar member that is provided on the rotating shaft of the meandering correction roller, contacts the side end of the endless belt in which meandering has occurred, and moves in an axial direction; and an inclination guide portion that is supported by the support frame and has an inclined surface downward and inclined with respect to the shaft of the meandering correction roller, in a position in which the contact portion of the collar member contacts the inclination guide portion.
    Type: Grant
    Filed: September 22, 2018
    Date of Patent: August 20, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shohtaro Okamoto
  • BELT ROTATING DEVICE, TRANSFER DEVICE, AND IMAGE FORMING APPARATUS
    Publication number: 20190072882
    Abstract: A belt rotating device includes: a meandering correction roller that is rotatably supported within a support frame and is one of a plurality of rollers that stretch an endless belt; a supporting portion that is provided at the support frame and supports a rotating shaft of the meandering correction roller so as to be able to incline the rotating shaft of the meandering correction roller in a one direction; a collar member that is provided on the rotating shaft of the meandering correction roller, contacts the side end of the endless belt in which meandering has occurred, and moves in an axial direction; and an inclination guide portion that is supported by the support frame and has an inclined surface downward and inclined with respect to the shaft of the meandering correction roller, in a position in which the contact portion of the collar member contacts the inclination guide portion.
    Type: Application
    Filed: September 22, 2018
    Publication date: March 7, 2019
    Inventor: Shohtaro OKAMOTO
  • Belt rotating device, transfer device, and image forming apparatus
    Patent number: 10108115
    Abstract: A belt rotating device includes: a meandering correction roller that is rotatably supported within a support frame and is one of a plurality of rollers that stretch an endless belt; a supporting portion that is provided at the support frame and supports a rotating shaft of the meandering correction roller so as to be able to incline the rotating shaft of the meandering correction roller in a one direction; a collar member that is provided on the rotating shaft of the meandering correction roller, contacts the side end of the endless belt in which meandering has occurred, and moves in an axial direction; and an inclination guide portion that is supported by the support frame and has an inclined surface downward and inclined with respect to the shaft of the meandering correction roller, in a position in which the contact portion of the collar member contacts the inclination guide portion.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: October 23, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shohtaro Okamoto
  • BELT ROTATING DEVICE, TRANSFER DEVICE, AND IMAGE FORMING APPARATUS
    Publication number: 20180101113
    Abstract: A belt rotating device includes: a meandering correction roller that is rotatably supported within a support frame and is one of a plurality of rollers that stretch an endless belt; a supporting portion that is provided at the support frame and supports a rotating shaft of the meandering correction roller so as to be able to incline the rotating shaft of the meandering correction roller in a one direction; a collar member that is provided on the rotating shaft of the meandering correction roller, contacts the side end of the endless belt in which meandering has occurred, and moves in an axial direction; and an inclination guide portion that is supported by the support frame and has an inclined surface downward and inclined with respect to the shaft of the meandering correction roller, in a position in which the contact portion of the collar member contacts the inclination guide portion.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 12, 2018
    Inventor: Shohtaro OKAMOTO
  • Belt rotating device, transfer device, and image forming apparatus
    Patent number: 9869951
    Abstract: A belt rotating device includes: a meandering correction roller that is rotatably supported within a support frame and is one of a plurality of rollers that stretch an endless belt; a supporting portion that is provided at the support frame and supports a rotating shaft of the meandering correction roller so as to be able to incline the rotating shaft of the meandering correction roller in a one direction; a collar member that is provided on the rotating shaft of the meandering correction roller, contacts the side end of the endless belt in which meandering has occurred, and moves in an axial direction; and an inclination guide portion that is supported by the support frame and has an inclined surface downward and inclined with respect to the shaft of the meandering correction roller, in a position in which the contact portion of the collar member contacts the inclination guide portion.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: January 16, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shohtaro Okamoto
  • BELT ROTATING DEVICE, TRANSFER DEVICE, AND IMAGE FORMING APPARATUS
    Publication number: 20170090356
    Abstract: A belt rotating device includes: a meandering correction roller that is rotatably supported within a support frame and is one of a plurality of rollers that stretch an endless belt; a supporting portion that is provided at the support frame and supports a rotating shaft of the meandering correction roller so as to be able to incline the rotating shaft of the meandering correction roller in a one direction; a collar member that is provided on the rotating shaft of the meandering correction roller, contacts the side end of the endless belt in which meandering has occurred, and moves in an axial direction; and an inclination guide portion that is supported by the support frame and has an inclined surface downward and inclined with respect to the shaft of the meandering correction roller, in a position in which the contact portion of the collar member contacts the inclination guide portion.
    Type: Application
    Filed: September 27, 2016
    Publication date: March 30, 2017
    Inventor: Shohtaro OKAMOTO