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.
Patent No.:
Date of Patent:
Apr. 24, 2012
Filed:
Dec. 16, 2009
Applicants:
Atsushi Shimazu, Akita, JP;
Masaki Morikawa, Akita, JP;
Inventors:
Atsushi Shimazu, Akita, JP;
Masaki Morikawa, Akita, JP;
Assignee:
Japan Super Quartz Corporation, Akita-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/46 (2006.01); G01J 3/45 (2006.01);
U.S. Cl.
CPC ...
Abstract
Colored foreign particles contained in quartz powder material are detected in a high precision with the specified detection apparatus even when the colored foreign particles are pale colored foreign particles such as iron-based refuse, organic refuse and carbon-based refuse.