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:
Apr. 18, 1995

Filed:

Jul. 11, 1989
Applicant:
Inventors:

Koji Yamamoto, Kyoto, JP;

Masahiro Hanafusa, Kyoto, JP;

Michio Nishimura, Osaka, JP;

Yoshihiro Nakatsuji, Kyoto, JP;

Fumio Onuma, Kyoto, JP;

Shinichi Hirako, Kyoto, JP;

Kunio Kaede, Shiga, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; C12Q / ;
U.S. Cl.
CPC ...
356 73 ; 356 39 ; 356336 ; 435724 ; 435 30 ; 435 34 ; 435 39 ; 436 10 ; 436 52 ;
Abstract

In a cell analyze apparatus, a light beam is irradiated onto cells (or particles like the cells) flowing through a flow cell so as to measure cell light information for each cell with respect to a plurality of parameters (for example, the forward scattered light intensity, the right angle scattered light intensity and the intensity of fluorescence by different dye). Based on a minimal point of a histogram associated with the cell light information with respect to one or more parameters, the cell population is subdivided into fractions. When the minimal point is missing in the histogram, the parameters above are converted by use of a predetermined conversion expression (for example, a coordinate conversion is effected on the parameters) such that a minimal point is detected from the histogram of cell light information related to the new parameters obtained by the conversion, thereby subdividing an objective cell population.


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