Patents by Inventor Yuusuke Harada

Yuusuke Harada 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).

  • Abrasive suspension for wet honing and surface treating method using the same
    Patent number: 5238467
    Abstract: An abrasive suspension for wet honing for surface treatment of an electrically conductive substrate for an electrophotographic photoreceptor, the suspension comprising pure water having suspended therein at least 20% by weight, based on the total weight of the abrasive suspension, of an abrasive and having an electrical conductivity of not more than 10 .mu.s/cm. A conductive substrate having its surface roughened by using the abrasive suspension is free from impurities.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: August 24, 1993
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shigeto Hashiba, Yuusuke Harada