Patents by Inventor Tsann-Heui Chang

Tsann-Heui 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).

  • Device and method for capturing biological tissues
    Patent number: 6908766
    Abstract: A device and method for capturing a biological tissue, comprises cutting a minute biological cellular tissue using a contactless cutting apparatus, wherein, by inverting a biological tissue slide provided with a sample thereon, and after cutting a cellular tissue profile using said contactless cutting apparatus, an impact lever moving mechanism applies from up to down a proper impact force or vibration force onto the target area thus cut, and thereby render said cellular tissue specimen thus captured dropping exactly through a tissue sampling hole into a sampling mortar located therebelow so as to achieve the object of capturing the desired minute biological cellular tissue.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: June 21, 2005
    Assignee: Industrial Technology Research Institute
    Inventors: Yung-Feng Nien, Tsann-Heui Chang, Ko-Chang Chen, Yeou-Bin Guu
  • Device and method for capturing biological tissues
    Publication number: 20040077032
    Abstract: A device and method for capturing a biological tissue, comprises cutting a minute biological cellular tissue using a contactless cutting apparatus, wherein, by inverting a biological tissue slide provided with a sample thereon, and after cutting a cellular tissue profile using said contactless cutting apparatus, an impact lever moving mechanism applies from up to down a proper impact force or vibration force onto the target area thus cut, and thereby render said cellular tissue specimen thus captured dropping exactly through a tissue sampling hole into a sampling mortar located therebelow so as to achieve the object of capturing the desired minute biological cellular tissue.
    Type: Application
    Filed: August 4, 2003
    Publication date: April 22, 2004
    Inventors: Yung-Feng Nien, Tsann-Heui Chang, Ko-Chang Chen, Yeou-Bin Guu