Patents by Inventor Ryohhei OHYA

Ryohhei OHYA 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: 20210221636
    Abstract: A sheet conveying device includes a pair of rollers including a first roller and a second roller to hold a sheet conveyed between the first and second rollers; a biasing member to bias the first roller toward the second roller; a biasing force changer to change a biasing force of the biasing member; control circuitry to, when a predetermined changing condition is met, cause the changer to change the biasing force and cause the rollers to convey the sheet; an operation detector to detect a changing operation of the changer; and a notification device to notify an abnormality of the changing operation when the operation detector detects the abnormality. When the operation detector detects the abnormality, the control circuitry performs sheet conveyance control to cause the rollers to convey the sheet without causing the changer to change the biasing force, regardless of whether the predetermined changing condition is met.
    Type: Application
    Filed: January 11, 2021
    Publication date: July 22, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Yu WAKABAYASHI, Kazuya YAMAMOTO, Yasuhide FUKUSHIMA, Yuuki SHIGA, Ryohhei OHYA
  • Publication number: 20210214176
    Abstract: A sheet conveying device includes a pair of rollers, a biasing member, a guide member, a biasing support, and a biasing force changer. The pair of rollers includes a first roller and a second roller disposed in contact with the first roller. The pair of rollers is configured to hold a sheet between the first roller and the second roller. The biasing member is configured to bias the first roller toward the second roller. The biasing support is configured to support the biasing member and has a guide target member configured to slide along the guide member to move the biasing support. The biasing force changer is configured to change a biasing force of the biasing member along with movement of the biasing. support. The guide target member has a portion projecting into a sheet conveyance passage through which the sheet is conveyed by the pair of rollers.
    Type: Application
    Filed: January 6, 2021
    Publication date: July 15, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasuhide FUKUSHIMA, Yu WAKABAYASHI, Yuuki SHIGA, Kazuya YAMAMOTO, Ryohhei OHYA