Patents by Inventor Qincui Gu

Qincui Gu 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).

  • Extreme ultraviolet light and X-ray source target and manufacturing method thereof
    Patent number: 7885387
    Abstract: The present invention is made to provide an extreme ultraviolet light source target or an X-ray source target having a good operationality. An extreme ultraviolet light source target in accordance with an aspect of the present invention is obtained by including a heavy metal such as tin into a matrix made of a polymeric material such as hydroxylpropylcellulose (HPC). The target can be manufactured by mixing the heavy metal and the polymeric material with a solvent, and evaporating the solvent. Since the target uses the polymeric material as a matrix, the target can be easily deformed to have a desired shape. For this reason, the target can be easily attached to a target holder irrespective of the shape of the holder, resulting in a good operationality of the target. Furthermore, an emission efficiency can be improved by including the heavy metal at a low density.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: February 8, 2011
    Assignee: Osaka University
    Inventors: Keiji Nagai, Qincui Gu, Takayoshi Norimatsu, Shinsuke Fujioka, Hiroaki Nishimura, Katsunobu Nishihara, Noriaki Miyanaga, Yasukazu Izawa
  • Extreme Ultraviolet Light and X-Ray Source Target and Manufacturing Method Thereof
    Publication number: 20080157011
    Abstract: The present invention is made to provide an extreme ultraviolet light source target or an X-ray source target having a good operationality. An extreme ultraviolet light source target in accordance with an aspect of the present invention is obtained by including a heavy metal such as tin into a matrix made of a polymeric material such as hydroxylpropylcellulose (HPC). The target can be manufactured by mixing the heavy metal and the polymeric material with a solvent, and evaporating the solvent. Since the target uses the polymeric material as a matrix, the target can be easily deformed to have a desired shape. For this reason, the target can be easily attached to a target holder irrespective of the shape of the holder, resulting in a good operationality of the target. Furthermore, an emission efficiency can be improved by including the heavy metal at a low density.
    Type: Application
    Filed: August 29, 2005
    Publication date: July 3, 2008
    Applicant: OSAKA UNIVERSITY
    Inventors: Keiji Nagai, Qincui Gu, Takayoshi Norimatsu, Shinsuke Fujioka, Hiroaki Nishimura, Katsunobu Nishihara, Noriaki Miyanaga, Yasukazu Izawa