Patents by Inventor Jyun Koyatsu

Jyun Koyatsu 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).

  • Wet-type developing apparatus and image forming apparatus using the same
    Patent number: 6445897
    Abstract: In a wet-type developing apparatus in which a latent image carrying member and a squeeze roller are moved in the opposite directions to each other while they are not brought into contact with each other at the closest position thereof, a liquid toner layer on the latent image carrying member which is smaller in thickness than the gap interval between the latent image carrying member and the squeeze roller is made to invade into the gap, and the liquid toner invading into the gap between the squeeze roller and the latent image carrying member are brought into contact with the squeeze roller by electrical attractive force based on electric field formed between the squeeze roller and the latent image carrying member, thereby forming meniscus.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: September 3, 2002
    Assignee: NEC Corporation
    Inventors: Tsutomu Uezono, Jyun Koyatsu, Ryouichi Yasuda, Tomoyuki Yoshii
  • Wet-type developing apparatus and image forming apparatus using the same
    Publication number: 20010016129
    Abstract: In a wet-type developing apparatus in which a latent image carrying member and a squeeze roller are moved in the opposite directions to each other while they are not brought into contact with each other at the closest position thereof, a liquid toner layer on the latent image carrying member which is smaller in thickness than the gap interval between the latent image carrying member and the squeeze roller is made to invade into the gap, and the liquid toner invading into the gap between the squeeze roller and the latent image carrying member are brought into contact with the squeeze roller by electrical attractive force based on electric field formed between the squeeze roller and the latent image carrying member, thereby forming meniscus.
    Type: Application
    Filed: February 15, 2001
    Publication date: August 23, 2001
    Inventors: Tsutomu Uezono, Jyun Koyatsu, Ryouichi Yasuda, Tomoyuki Yoshii