Patents by Inventor Ryota Takane

Ryota Takane 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).

  • Sheet conveyance apparatus and image forming apparatus
    Patent number: 11724899
    Abstract: A first roller pair disposed upstream of a second roller pair is separated from each other by a separating mechanism. A control portion is configured to start rotating the second roller pair after a leading edge of a sheet in a sheet conveyance direction is abutted against the second roller pair in a stopped condition. The control portion is configured to execute, based on the information concerning the sheet length acquired by the acquisition portion, either one of a plurality of modes including a first mode of rotating an upstream roller pair and the first roller pair to convey the sheet while the first roller pair is in a contact condition and a second mode of operating the separating mechanism to separate the first roller pair and of rotating the upstream roller pair to convey the sheet while the first roller pair is in a separated condition.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: August 15, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ryota Takane, Yasuhiro Takeichi
  • SHEET CONVEYANCE APPARATUS AND IMAGE FORMING APPARATUS
    Publication number: 20200156890
    Abstract: A first roller pair disposed upstream of a second roller pair is separated from each other by a separating mechanism. A control portion is configured to start rotating the second roller pair after a leading edge of a sheet in a sheet conveyance direction is abutted against the second roller pair in a stopped condition. The control portion is configured to execute, based on the information concerning the sheet length acquired by the acquisition portion, either one of a plurality of modes including a first mode of rotating an upstream roller pair and the first roller pair to convey the sheet while the first roller pair is in a contact condition and a second mode of operating the separating mechanism to separate the first roller pair and of rotating the upstream roller pair to convey the sheet while the first roller pair is in a separated condition.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 21, 2020
    Inventors: Ryota Takane, Yasuhiro Takeichi