Patents by Inventor Hejun Ma

Hejun Ma 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).

  • Multi-beam multi-aperture optical beam steering module
    Patent number: 7457493
    Abstract: An m×n fan out device for receiving at least m=2 laser beams of different wavelengths and dividing the power of each laser beam into at least two other laser beams directed to at least one of n exit ports of the fan out device is disclosed.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: November 25, 2008
    Assignee: Kent Optronics
    Inventors: Le Li, Haiping Yu, Ben Tang, Jianhui Li, Hejun Ma, Fang Du