Patents by Inventor Hidetoshi Miyamoto

Hidetoshi Miyamoto 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: 5561264
    Abstract: A liquid-type developing device for use in an image forming apparatus such as a copying machine or printer, that develops an electrostatic latent image formed on a latent image holding member using a liquid-type developer. In the liquid-type developing device, a developer carrying member supplies the liquid-type developer to the surface of the electrostatic latent image carrier at a developing region, and a removing member removes residual liquid-type developer remained on the surface of the developer carrying member after development.Before removing the residual liquid-type developer remained by the removing member, a fluid supplying member supplies a fluid on the surface of the developer carrying member so that the removing member removes said residual liquid-type developer with said fluid.
    Type: Grant
    Filed: October 4, 1995
    Date of Patent: October 1, 1996
    Assignee: Minolta Co., Ltd.
    Inventors: Shuji Iino, Toshimitsu Fujiwara, Hidetoshi Miyamoto, Takaji Kurita
  • Patent number: 5494777
    Abstract: A radiation sensitive resin composition which can be suitably used as a negative type resist having a high sensitivity, a high resolution, a high yield of residual film thickness and high thermal resistance, and which comprises (A) an alkali-soluble novolak resin, (B) a phenolic compound having a standard polystyrene-reduced weight average molecular weight of 10,000 or less such as polyvinylphenol, (C) a compound capable of cross-linking the component (A) and/or the component (B) in the presence of an acid, and (D) a radiation sensitive acid generator such as a triazine compound having a halomethyl group.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: February 27, 1996
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Shinji Shiraki, Hidetoshi Miyamoto, Masaaki Inoue, Toshiyuki Ota, Yoshiji Yumoto, Takao Miura