Patents by Inventor Hisayo Fukai

Hisayo Fukai 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).

  • Method for removing a photosensitive layer from a photosensitive drum
    Patent number: 5746836
    Abstract: Method for separating and removing a photosensitive layer, containing a binder resin, from a photosensitive drum, by immersing the photosensitive drum in an aqueous composition of water and an organic compound capable of dissolving or wetting the resin binder of the photosensitive resin in an oil-in-water dispersion.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: May 5, 1998
    Assignee: Oyentos Corporation
    Inventor: Hisayo Fukai
  • Method of fixing toner applying wet medium
    Patent number: 5666628
    Abstract: Method of fixing toner by applying a fixing agent to a substrate containing an unfused toner at predetermined positions thereof, by spraying or dripping the fixing agent onto the substrate, or immersing the back surface of the substrate into the fixing agent to permit the fixing agent to permeate into the other side of the substrate containing the toner. The fixing agent causes the unfused toner to be half-dissolved or swollen on the surface of the object and the half-dissolved or swollen toner is dried to be fixed to the substrate.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: September 9, 1997
    Assignees: Qyentos Corporation, Unico Co., Ltd.
    Inventor: Hisayo Fukai