The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 24, 2004

Filed:

Jan. 08, 2003
Applicant:
Inventor:

Myung-Suk Chun, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 1/304 ; G01N 1/508 ;
U.S. Cl.
CPC ...
G01N 1/304 ; G01N 1/508 ;
Abstract

A particle diffusion coefficient measuring device is provided with a hollow-fiber including micropores on its surface. The hollow-fiber provides a passage for particle suspension to transport through. The device is also provided with a fluid passage formed outside the hollow-fiber to communicate with the hollow-fiber via the micropores. The fluid passage provides a passage for an electrolyte solution to transport through in such a manner that the electrolyte solution is delivered to flow in the same direction as that of the particle suspension and is discharged from the fluid passage. The device detects a concentration change of the particles in the electrolyte solution discharged out of the fluid passage over a time change and calculates a particle diffusion coefficient by using the concentration change of the particles over the time change.


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