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:
Aug. 22, 2006
Filed:
Nov. 12, 2004
Applicant:
Masahiko Wakairo, Isesaki, JP;
Inventor:
Masahiko Wakairo, Isesaki, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 19/00 (2006.01); G06G 7/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the case where it is diagnosed whether or not the leakage occurs in a fuel vapor purge system from a standby time has elapsed after an engine operation was stopped, the power supply to processing circuits unnecessary for the leakage diagnosis is shut off, thereby suppressing the power consumption during the engine operation stop.