Patents by Inventor Weon Gyu Shin

Weon Gyu Shin 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).

  • Measurement system for the multidimensional aerosol characterization
    Patent number: 8181505
    Abstract: A method is proposed for characterizing a totality of particles. The method can be used in particular for characterizing microparticular or nanoparticular aerosols. The method comprises the following steps: a) in a classification step, a class of the totality is selected, wherein the particles of the selected class have a prespecified mobility dm; b) in a counting step, a number N of the particles of the selected class is determined; c) in a charge determination step, a charge Q of the particles of the selected class is determined; and d) in an evaluation step, at least one morphological parameter is determined from the charge Q, the number N and the mobility dm, wherein the morphological parameter comprises at least one item of information about an agglomerate state of the particles.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: May 22, 2012
    Assignees: BASF SE, Regents of The University of Minnesota
    Inventors: Michael Mertler, Bernd Sachweh, Markus Linsenbühler, Michael Schäfer, David Y. H. Pui, Heinz Fissan, Jing Wang, Weon Gyu Shin
  • MEASUREMENT SYSTEM FOR THE MULTIDIMENSIONAL AEROSOL CHARACTERIZATION
    Publication number: 20090199623
    Abstract: A method is proposed for characterizing a totality of particles (318). The method can be used in particular for charactering microparticular or nanoparticular aerosols. The method comprises the following steps: a) in a classification step, a class of the totality is selected, wherein the particles (318) of the selected class have a prespecified mobility dm; b) in a counting step, a number N of the particles (318) of the selected class is determined; c) in a charge determination step, a charge Q of the particles (318) of the selected class is determined; and d) in an evaluation step, at least one morphological parameter is determined from the charge Q, the number N and the mobility dm, wherein the morphological parameter comprises at least one item of information about an agglomerate state of the particles (318).
    Type: Application
    Filed: February 6, 2009
    Publication date: August 13, 2009
    Applicants: BASF SE, University of Minnesota
    Inventors: Michael Mertler, Bernd Sachweh, Markus Linsenbuhler, Michael Schafer, David Y.H. Pui, Heinz Fissan, Jing Wang, Weon Gyu Shin
  • Flow force compensating stepped shape spool valve
    Patent number: 6957665
    Abstract: Disclosed is a flow force compensating spool valve having a flow force compensating protrusion ring at a supply channel of a sleeve on an outer circumference portion of a spool rod, and a hydraulic valve, a pneumatic valve, a three-way valve, and a four-way valve using the spool valve, in which the flow force can be compensated by a simple structure change of the spool without changing a structure of the sleeve.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: October 25, 2005
    Assignees: Agency for Defense Development, Hanwha Corporation
    Inventors: Weon Gyu Shin, Hyun Young Choi, Hyo Pil Shin, Eui Joon Moon, Jong Yeol Kim
  • Flow force compensating spool valve and hydraulic valve, pneumatic valve, three-way control valve, and four-way control valve using the same
    Publication number: 20040000347
    Abstract: Disclosed is a flow force compensating spool valve having a flow force compensating protrusion ring at a supply channel of a sleeve on an outer circumference portion of a spool rod, and a hydraulic valve, a pneumatic valve, a three-way valve, and a four-way valve using the spool valve, in which the flow force can be compensated by a simple structure change of the spool without changing a structure of the sleeve.
    Type: Application
    Filed: February 20, 2003
    Publication date: January 1, 2004
    Applicants: Agency for Defense Development, Hanwha Corporation
    Inventors: Weon Gyu Shin, Hyun Young Choi, Hyo Pil Shin, Eui Joon Moon, Jong Yeol Kim