Patents by Inventor Han-Yi Chang

Han-Yi Chang 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).

  • Optical information storage medium
    Publication number: 20060257614
    Abstract: An optical information storage medium includes a first substrate, a first recording layer, a first reflective layer, a spacer layer, a buffer layer, a second recording layer, a second reflective layer, and a second substrate. In this case, the first recording layer is disposed above the first substrate. The first reflective layer is disposed above the first recording layer. The spacer layer is disposed above the first reflective layer. The buffer layer is disposed above the spacer layer, and the thickness of the buffer layer is about between 1 nm and 50 nm. The second recording layer is disposed above the buffer layer. The second reflective layer is disposed above the second recording layer. The second substrate is disposed above the second reflective layer.
    Type: Application
    Filed: June 22, 2005
    Publication date: November 16, 2006
    Inventors: Zhi-Zhong Wang, Han-Yi Chang, Cheng-Yuan Tsai
  • Optical information storage medium
    Publication number: 20060210759
    Abstract: An optical information storage medium includes a first substrate, a first recording layer, a first reflective layer, a spacer layer, a second recording layer, a second reflective layer and a second substrate. In this case, the first recording layer is disposed above the first substrate. The first reflective layer is disposed above the first recording layer. The spacer layer is disposed above the first reflective layer. The second recording layer is disposed above the spacer layer. The second reflective layer is disposed above the second recording layer. The second substrate is disposed above the second reflective layer and the second substrate has a groove, wherein the depth of the groove is smaller than 100 nm.
    Type: Application
    Filed: June 2, 2005
    Publication date: September 21, 2006
    Inventors: Han-Yi Chang, Cheng-Yuan Tsai, Tsai-Chu Hsiao
  • Optical information storage medium
    Publication number: 20060003135
    Abstract: An optical information storage medium includes a first substrate, a first recording layer, a first reflective layer, a spacer layer, a second recording layer, a barrier layer, a second reflective layer, and a second substrate. In this case, the first recording layer is disposed above the first substrate. The first reflective layer is disposed above the first recording layer. The spacer layer is disposed above the first reflective layer. The second recording layer, which is made of inorganic material, is disposed above the spacer layer. The barrier layer is disposed above the second recording layer. The second reflective layer, which is made of inorganic material, is disposed above the barrier layer. The second substrate is disposed above the second reflective layer.
    Type: Application
    Filed: November 3, 2004
    Publication date: January 5, 2006
    Inventors: Tsai-Chu Hsiao, Samuel Fu, Han-Yi Chang