Patents by Inventor Kazuhiro Shimojima

Kazuhiro Shimojima 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: 11640128
    Abstract: A sheet conveyor includes a conveyance belt configured to rotate to convey a sheet on which a liquid has been applied in a conveyance direction, and a guide configured to guide the sheet to the conveyance belt, a position of the guide being variable in the conveyance direction.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: May 2, 2023
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiro Shimojima, Kenji Nozawa, Genichiroh Kawamichi, Masato Ogawa, Kohki Asada, Kazuaki Kamihara, Hiroshi Sawase, Ryusaku Hida
  • Patent number: 11485157
    Abstract: A conveyance device includes a tray on an upper surface of the conveyance device and an upper guide below the tray. The tray receives a sheet, and the upper guide defines a conveyance path in which the sheet is conveyed. The upper guide is movable together with the tray to open the conveyance path.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: November 1, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiro Shimojima, Isao Matsushima
  • Publication number: 20220324670
    Abstract: A sheet conveying device includes a sheet stacker, an air blower, and a guide. The sheet stacker stacks sheets. The air blower blows air to the sheets. The guide faces an uppermost sheet on the sheet stacker.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 13, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Taiki YAMAMOTO, Takahiro OGINO, Takashi EBIHARA, Satoshi KOHARA, Kazuhiro SHIMOJIMA
  • Publication number: 20220066361
    Abstract: A sheet conveyor includes a conveyance belt configured to rotate to convey a sheet on which a liquid has been applied in a conveyance direction, and a guide configured to guide the sheet to the conveyance belt, a position of the guide being variable in the conveyance direction.
    Type: Application
    Filed: August 17, 2021
    Publication date: March 3, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Kazuhiro Shimojima, Kenji Nozawa, Genichiroh Kawamichi, Masato Ogawa, Kohki Asada, Kazuaki Kamihara, Hiroshi Sawase, Ryusaku Hida
  • Publication number: 20210138807
    Abstract: A conveyance device includes a tray on an upper surface of the conveyance device and an upper guide below the tray. The tray receives a sheet, and the upper guide defines a conveyance path in which the sheet is conveyed. The upper guide is movable together with the tray to open the conveyance path.
    Type: Application
    Filed: November 2, 2020
    Publication date: May 13, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Kazuhiro SHIMOJIMA, Isao MATSUSHIMA
  • Patent number: 10386754
    Abstract: A belt device includes a movable belt, a detection target, an optical detector, and a cleaner. The belt is looped around a plurality of supporting members. The detection target is disposed extending along a direction of belt movement on at least one side of the belt in a width direction of the belt intersecting with the don of belt movement. The optical detector detects the detection target. The cleaner is attached to at least one of the plurality of supporting members to clean the detection target.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: August 20, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Noriaki Takenaga, Kazuhiro Shimojima, Masami Takeshita
  • Patent number: 9772585
    Abstract: A cooling conveyor includes a conveyor, a cooler, and a pipe. The conveyor includes at least a first conveyor and a second conveyor to sandwich and convey a recording material. The first conveyor approaches and separates from the second conveyor. The cooler is disposed in the second conveyor to cool the recording material after an image is fixed on the recording material. The pipe is connected to the cooler to flow a cooling liquid into the cooler.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: September 26, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiro Shimojima, Hiroaki Miyagawa
  • Publication number: 20170242370
    Abstract: A belt device includes a movable belt, a detection target, an optical detector, and a cleaner. The belt is looped around a plurality of supporting members. The detection target is disposed extending along a direction of belt movement on at least one side of the belt in a width direction of the belt intersecting with the don of belt movement. The optical detector detects the detection target. The cleaner is attached to at least one of the plurality of supporting members to clean the detection target.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 24, 2017
    Inventors: Noriaki Takenaga, Kazuhiro Shimojima, Masami Takeshita
  • Patent number: 9222679
    Abstract: An earthquake resisting apparatus includes a load transmitting member which has a surface area larger than an installation area of an installation object, a movement limiting member which is arranged between the load transmitting member and an installation floor, the movement limiting member being bonded to the load transmitting member and having a coefficient of static friction between the movement limiting member and the installation floor when a load acts on the installation object in a horizontal direction in a state in which the installation object is fixed to the load transmitting member, in which the coefficient is larger than or equal to a predetermined value, and a fastening part which connects the installation object and the earthquake resisting apparatus.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: December 29, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masami Takeshita, Masahiro Yamazaki, Kazuhiro Shimojima, Yuuki Kikushima
  • Publication number: 20150253699
    Abstract: A cooling conveyor includes a conveyor, a cooler, and a pipe. The conveyor includes at least a first conveyor and a second conveyor to sandwich and convey a recording material. The first conveyor approaches and separates from the second conveyor. The cooler is disposed in the second conveyor to cool the recording material after an image is fixed on the recording material. The pipe is connected to the cooler to flow a cooling liquid into the cooler.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 10, 2015
    Inventors: Kazuhiro SHIMOJIMA, Hiroaki MIYAGAWA
  • Publication number: 20130180187
    Abstract: An earthquake resisting apparatus includes a load transmitting member which has a surface area larger than an installation area of an installation object, a movement limiting member which is arranged between the load transmitting member and an installation floor, the movement limiting member being bonded to the load transmitting member and having a coefficient of static friction between the movement limiting member and the installation floor when a load acts on the installation object in a horizontal direction in a state in which the installation object is fixed to the load transmitting member, in which the coefficient is larger than or equal to a predetermined value, and a fastening part which connects the installation object and the earthquake resisting apparatus.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 18, 2013
    Inventors: Masami TAKESHITA, Masahiro YAMAZAKI, Kazuhiro SHIMOJIMA, Yuuki KIKUSHIMA
  • Patent number: 7616915
    Abstract: A bearing detachably and rotatably holds a photoconductor. A bearing holder firmly holds the bearing. A rotating lever is provided on a rotation axis of a photoconductor between the photoconductor and the bearing holder. The bearing holder and the rotating lever are provided with many protrusions at regular intervals. At a first relative position of the bearing holder and the rotating lever, the protrusions on the bearing holder are located in between the protrusions on the rotating lever. At a second relative position of the bearing holder and the rotating lever, the protrusions on the bearing holder ride on the protrusions on the rotating lever thereby pushing the photoconductor away from the bearing and detaching the photoconductor from the bearing.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: November 10, 2009
    Assignee: Ricoh Company Ltd.
    Inventors: Kazuhiro Shimojima, Yoshitaka Fujinuma, Susumu Tateyama, Yukinori Sakuma
  • Publication number: 20080101818
    Abstract: A bearing detachably and rotatably holds a photoconductor. A bearing holder firmly holds the bearing. A rotating lever is provided on a rotation axis of a photoconductor between the photoconductor and the bearing holder. The bearing holder and the rotating lever are provided with many protrusions at regular intervals. At a first relative position of the bearing holder and the rotating lever, the protrusions on the bearing holder are located in between the protrusions on the rotating lever. At a second relative position of the bearing holder and the rotating lever, the protrusions on the bearing holder ride on the protrusions on the rotating lever thereby pushing the photoconductor away from the bearing and detaching the photoconductor from the bearing.
    Type: Application
    Filed: October 4, 2007
    Publication date: May 1, 2008
    Inventors: Kazuhiro Shimojima, Yoshitaka Fujinuma, Susumu Tateyama, Yukinori Sakuma
  • Patent number: 5802444
    Abstract: An electrophotographic apparatus is provided in which toner stick hardly occurs by improving the cooling effect on the strip of paper sheets after they are heat-fixed. This electrophotographic apparatus includes a fixing unit for heating toner transferred on a continuous strip of paper sheets and fixing the toner, and a folding unit for supplying a folding force to the continuous strip of paper sheets. A conveyer unit is arranged in the back stage of the electrophotographic apparatus for transferring the continuous strip of paper sheets, received from folding unit, in the horizontal direction.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: September 1, 1998
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Youichi Takeuchi, Akihiko Yamazaki, Shuho Yokokawa, Kunitomo Takahashi, Isao Nakajima, Kazuhiro Shimojima, Shinya Yamazaki, Tomomichi Kawashima