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:
Sep. 28, 2004
Filed:
Nov. 18, 2002
Applicant:
Inventors:
Assignee:
Yazaki Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 5/16 ;
U.S. Cl.
CPC ...
G01R 5/16 ;
Abstract
When excited states of excitation coils are controlled at a both excitation step of magnetizing both of two excitation coils, an initializing driving means inputs excitation pulses in which a duty ratio thereof at an interval of time controlled by the both excitation step is less than 1 to the excitation coils. Contact detecting means detects contact based on voltages generated at the excitation coils when the excitation pulses are not inputted.