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:
Nov. 17, 2015
Filed:
Feb. 23, 2011
Hirotaka Takahashi, Fujisawa, JP;
Takeshi Fukuoka, Fujisawa, JP;
Tomoyuki Itou, Fujisawa, JP;
Yasuo Okamoto, Fujisawa, JP;
Tatsuo Mashiko, Fujisawa, JP;
Hirotaka Takahashi, Fujisawa, JP;
Takeshi Fukuoka, Fujisawa, JP;
Tomoyuki Itou, Fujisawa, JP;
Yasuo Okamoto, Fujisawa, JP;
Tatsuo Mashiko, Fujisawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
A urea quality diagnosis system capable of accurately diagnosing the quality of an aqueous urea solution in a urea tank. A concentration and a level (L) of an aqueous urea solution inside a urea tankare detected, and the quality of the aqueous urea solution is diagnosed based on a detected value of the concentration of the aqueous urea solution when the level L is equal to or higher than a predetermined value.