Patents by Inventor Yoshisuke Takekida

Yoshisuke Takekida 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: 4493550
    Abstract: An electrostatic recording system having a drum 1 carrying a positively charged latent image 14, and a negatively charged cylindrical sleeve 10 having depressions 10a or other ink holding means on its outer surface. The sleeve is rotated into a tank 11 holding an electrically conducting ink 12 which is picked up in the depressions. The sleeve and drum are counter-rotating at different velocities and approach a narrow gap at which point the negatively charged ink is attracted to the positively charged image. Thereafter the inked image is transferred to a sheet of paper and the drum is cleaned and discharged.
    Type: Grant
    Filed: April 6, 1983
    Date of Patent: January 15, 1985
    Assignee: NEC Corporation
    Inventor: Yoshisuke Takekida