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. 04, 2020

Filed:

Jul. 09, 2018
Applicants:

Takahiko Matsumoto, Kanagawa, JP;

Manabu Seo, Kanagawa, JP;

Daisuke Takagi, Kanagawa, JP;

Inventors:

Takahiko Matsumoto, Kanagawa, JP;

Manabu Seo, Kanagawa, JP;

Daisuke Takagi, Kanagawa, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 15/14 (2006.01); G01N 21/64 (2006.01); B05C 5/00 (2006.01); B05C 11/00 (2006.01); G01N 35/10 (2006.01);
U.S. Cl.
CPC ...
G01N 15/14 (2013.01); B05C 5/00 (2013.01); B05C 11/00 (2013.01); G01N 15/1427 (2013.01); G01N 15/1459 (2013.01); G01N 15/1463 (2013.01); G01N 21/64 (2013.01); G01N 35/10 (2013.01); G01N 2015/149 (2013.01); G01N 2015/1481 (2013.01); G01N 2015/1486 (2013.01); G01N 2035/1034 (2013.01);
Abstract

A liquid droplet forming device includes a liquid droplet discharger that discharges, as a liquid droplet, a particle suspension liquid in which one or more fluorescent particles are suspended; a light source for irradiating light onto the flying liquid droplet discharged from the liquid droplet discharger; a photodetector that receives fluorescence that is emitted by the one or more fluorescent particles included in the liquid droplet in response to the light as excitation light; and a particle number detector that detects a number of the one or more fluorescent particles included in the liquid droplet based on information from the photodetector.


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