Patents by Inventor Yohsuke TERADA

Yohsuke TERADA 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).

  • Image forming apparatus including an image density detector of halftone images
    Patent number: 10281862
    Abstract: An image forming apparatus includes a latent image bearer to bear a plurality of halftone images having a same image density and a high-density image located one cycle downstream of the latent image bearer from at least one of the plurality of halftone images, a transferor to apply a predetermined transfer voltage to transfer the plurality of halftone images and the high-density image, a transfer electric field forming target to bear the plurality of halftone images and the high-density image transferred from the latent image bearer, a detector to detect image densities of the plurality of halftone images on the transfer electric field forming target, and a controller to determine a primary transfer voltage applied at a time of image formation, based on image density variations of the plurality of halftone images detected by the detector.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: May 7, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Shinji Aoki, Kei Hasegawa, Shintaro Yamada, Rie Mitani, Yohsuke Terada
  • IMAGE FORMING APPARATUS
    Publication number: 20180267452
    Abstract: An image forming apparatus includes a latent image bearer to bear a plurality of halftone images having a same image density and a high-density image located one cycle downstream of the latent image bearer from at least one of the plurality of halftone images, a transferor to apply a predetermined transfer voltage to transfer the plurality of halftone images and the high-density image, a transfer electric field forming target to bear the plurality of halftone images and the high-density image transferred from the latent image bearer, a detector to detect image densities of the plurality of halftone images on the transfer electric field forming target, and a controller to determine a primary transfer voltage applied at a time of image formation, based on image density variations of the plurality of halftone images detected by the detector.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 20, 2018
    Inventors: Shinji AOKI, Kei HASEGAWA, Shintaro YAMADA, Rie MITANI, Yohsuke TERADA