Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2006-10-31
2006-10-31
Lefkowitz, Edward (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
Reexamination Certificate
active
07129700
ABSTRACT:
An angle sensor includes a magnet fixed to a rotational shaft and a Hall device disposed at neutral detection position C such that it faces the magnet, thereby detecting the rotational angle of the magnet based on an output of the Hall device. A magnetic member is attached to each of the magnetic poles of the magnet so that the maximum magnetic flux portions are away from the neutral detection position C in the circumferential direction of the shaft, thereby allowing the magnetic flux distribution to be biased to the direction opposite from the Hall device.
REFERENCES:
patent: 4810965 (1989-03-01), Fujiwara et al.
patent: 6373241 (2002-04-01), Weber et al.
patent: 6448763 (2002-09-01), Spellman
patent: 6515474 (2003-02-01), Dielschneider et al.
patent: 6518749 (2003-02-01), Oudet et al.
patent: 6586929 (2003-07-01), Luetzow
patent: 2002/0121894 (2002-09-01), Ooki et al.
patent: 2003/0137292 (2003-07-01), Welsch et al.
patent: 2003/0137293 (2003-07-01), Welsch et al.
patent: 2004/0050180 (2004-03-01), Abe et al.
patent: 2000-121309 (2000-04-01), None
patent: 2002-0000765 (2002-01-01), None
Official Communication dated Oct. 20, 2005, issued in the corresponding Korean Patent Application No. 10-2004-0003270. (with English translation).
First Chinese Office Action, along with English Translation issued in Chinese Application No. 200410002208.3 issued on Jun. 10, 2005.
Kishishita Hiroyuki
Okubo Takeo
Keating & Bennett LLP
Lefkowitz Edward
Murata Manufacturing Co. Ltd.
Whittington Kenneth J.
LandOfFree
Angle sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Angle sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Angle sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3716593