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:
Oct. 12, 2010

Filed:

May. 15, 2008
Applicants:

Makoto Tai, Tokyo, JP;

Takafumi Izumiya, Tokyo, JP;

Tsuyoshi Futamura, Tokyo, JP;

Shigeyuki Shinohara, Tokyo, JP;

Inventors:

Makoto Tai, Tokyo, JP;

Takafumi Izumiya, Tokyo, JP;

Tsuyoshi Futamura, Tokyo, JP;

Shigeyuki Shinohara, Tokyo, JP;

Assignee:

Japan Tobacco Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/25 (2006.01);
U.S. Cl.
CPC ...
Abstract

A mixture identification system for detecting foreign matter admixed in a tobacco material includes a conveyor for conveying the material, an irradiation device for irradiating infrared light toward an inspection line extending across the conveyor, an infrared camera device for receiving the infrared light reflected from the tobacco material passing across the inspection line and outputting image data of the material based on the received infrared light, and a discrimination circuit for detecting foreign matter in the material based on the output from the camera device. The infrared camera device has infrared filters for receiving the infrared light reflected from the tobacco material and allowing only respective specific wavelengths to pass therethrough, and optical line sensors for receiving the infrared light passed through the respective filters.


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