Patents by Inventor Seong Kweon Joh

Seong Kweon Joh 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).

  • SYSTEM FOR MEASURING ABSOLUTE QUANTITY OF EACH COMPONENT OF GAS USING QMS
    Publication number: 20120216598
    Abstract: The present invention relates to a system for measuring an absolute quantity of each component of a gas using a QMS, more particularly to a system for measuring an absolute quantity of each component of a gas using a QMS, which is capable of performing not only a qualitative analysis but also a quantitative analysis in an accurate manner, using just a trace amount of gas introduced through a pinhole. According to the present invention, the productivity of products can be improved, and production management can be performed in an efficient manner, thereby improving industrial competitiveness.
    Type: Application
    Filed: November 25, 2010
    Publication date: August 30, 2012
    Applicants: Korea Research Institute of Standards and Science, EL Inc.
    Inventors: Seok Rae Yoon, Seong Kweon Joh, Won Young Park, Keu Chan Lee, Jin Seong Kim, Jin Bok Lee, Dong Min Moon, Kwang Seob Kim