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:
Apr. 14, 2009
Applicants:
Yoshiro Shiokawa, Hachioji, JP;
Harumi Maruyama, Inagi, JP;
Megumi Nakamura, Tama, JP;
Inventors:
Assignee:
Canon Anelva Corporation, Kawasaki-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 59/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
An internal standard material to be added to a specimen containing a material to be measured when measuring the content of the material to be measured by performing mass spectrometry on the specimen includes a hindered phenol compound.