Patents by Inventor Kazuhisa Aikawa

Kazuhisa Aikawa 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: 4137537
    Abstract: An electrostatic transfer process and apparatus for transferring an image comprised of letters, symbols and patterns onto a sheet of plain recording paper from an electrostatic latent image forming material comprised of a conductive substrate and an insulating layer formed on the substrate. The insulating layer surface of the electrostatic latent image forming material is uniformly charged with electrostatic charges. The charges of only image forming areas of the insulating layer surface are subsequently erased so that an electrostatic latent image is formed in the image forming areas. Thereafter, the electrostatic latent image forming material moves past a developing electrode to which is applied a voltage of the same polarity as that of the charges applied to the insulating layer of the electrostatic latent image forming material.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: January 30, 1979
    Assignee: Fujitsu Limited
    Inventors: Hideo Takahashi, Kazuhisa Aikawa, Masakatsu Horie