Patents by Inventor Huajin Qin

Huajin Qin 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).

  • Charging Device and Photosensitive Drum Component
    Publication number: 20120269550
    Abstract: A charging device having a corona grid and a fur brush. The corona grid has a side wall and a lower wall adjacent to the side wall. The lower wall is provided with a plurality of grids. A corona wire is provided above the lower wall of the corona grid, wherein a decompression module is provided between the corona grid and said fur brush. One end of the decompression module is connected with the corona grid and the other end is connected with the fur brush. A photosensitive drum component is also disclosed.
    Type: Application
    Filed: December 7, 2010
    Publication date: October 25, 2012
    Applicant: Print-Rite Unicorn Image Products Co., Ltd.
    Inventors: Huajin Qin, Honghui Zhou