Patents by Inventor Yan Zhi Chen

Yan Zhi Chen 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).

  • Publication number: 20190232691
    Abstract: A ribbon rewinding mechanism for providing stable ribbon tension in a printer includes a base body, a supply shaft assembly, a take-up shaft assembly and a transmission system. Each of the supply shaft assembly and the take-up shaft assembly has an axis rod, an outer cover and an elastic member. The outer cover and the axis rod drive each other through the elastic member. The outer covers of the supply shaft assembly and the take-up shaft assembly are connectable to the two ends of a ribbon, respectively. The axis rods of the supply shaft assembly and the take-up shaft assembly are connected to the base body and the transmission system through unidirectional transmission elements, respectively, so that the ribbon can be stably and continuously rewound for a distance needed.
    Type: Application
    Filed: December 18, 2018
    Publication date: August 1, 2019
    Inventors: YU-ZHI CHEN, ZHI-HAO LU, I-CHE YU, YAN-ZHANG CHEN
  • Patent number: 7867942
    Abstract: The invention provides a method for manufacturing a highly dispersed carbon supported metal catalyst, including charging a carbon support and a dispersing agent in water. The carbon support is evenly dispersed in water with an average diameter of 10 nm to 2000 nm and a specific surface area of 50 m2/g to 1500 m2/g. A metal salt of Pd, Pt, or combinations thereof is formed on the carbon support surface and then reduced to a valance state less than (IV).
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: January 11, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Man-Yin Lo, Hsi-Yen Hsu, Yan Zhi Chen, Li Duan Tsai, Yu Min Peng
  • Publication number: 20090131247
    Abstract: The invention provides a method for manufacturing a highly dispersed carbon supported metal catalyst, including charging a carbon support and a dispersing agent in water. The carbon support is evenly dispersed in water with an average diameter of 10 nm to 2000 nm and a specific surface area of 50 m2/g to 1500 m2/g. A metal salt of Pd, Pt, or combinations thereof is formed on the carbon support surface and then reduced to a valance state less than (IV).
    Type: Application
    Filed: April 1, 2008
    Publication date: May 21, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Man-Yin Lo, Hsi-Yen Hsu, Yan Zhi Chen, Li Duan Tsai, Yu Min Peng