Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2004-06-30
2008-10-14
Blouin, Mark (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07436632
ABSTRACT:
A magnetic sensor for reading information from a magnetic medium. The magnetic sensor includes a bottom electrode and a first sensor disposed above the bottom electrode. The magnetic sensor also includes a middle electrode disposed above the first sensor, a second sensor disposed above the middle electrode and a top electrode disposed above the second sensor. The bottom electrode, the middle electrode and the top electrode are utilized to electrically connect the first sensor and the second sensor in parallel.
REFERENCES:
patent: 3448440 (1969-06-01), Wiegand
patent: 4075671 (1978-02-01), Cheatham et al.
patent: 4112408 (1978-09-01), Roozenbeek
patent: 4150314 (1979-04-01), Zabler et al.
patent: 4374403 (1983-02-01), Oshima et al.
patent: 5668688 (1997-09-01), Dykes et al.
patent: 6005753 (1999-12-01), Fontana, Jr. et al.
patent: 6275363 (2001-08-01), Gill
patent: 6445171 (2002-09-01), Sandquist et al.
patent: 6473275 (2002-10-01), Gill
patent: 6566856 (2003-05-01), Sandquist et al.
patent: 6633461 (2003-10-01), Gill
patent: 6661620 (2003-12-01), Seigler et al.
patent: 6670809 (2003-12-01), Edelstein et al.
patent: 6741432 (2004-05-01), Pinarbasi
patent: 6751072 (2004-06-01), Freitag et al.
patent: 6781798 (2004-08-01), Gill
patent: 6927948 (2005-08-01), Gill
patent: 2002/0135946 (2002-09-01), Gill
patent: 2003/0179481 (2003-09-01), McNeil et al.
patent: 2003/0184918 (2003-10-01), Lin et al.
patent: 2004/0017639 (2004-01-01), Deak
Marvin Camras, “Magnetic Modulator Heads,” Magnetic Recording Handbook, Van Nostrand Reinhold Co. Inc, 1988, pp. 236-239.
Kanu G. Ashar, “Magnetic Disc Drive Technology: Heads, Media, Channel, Interfaces and Integration,” Magnetic Disk Drive Technology, IEEE Press, 1997, pp. 198-200.
Harold B. Crawford et al., “Hall Effect Magnetoresistive Modulators,” Electronic Designer's Handbook, McGraw-Hill, Inc., 1977, Section 13.16g, pp. 13-145 through 13-146.
Gao Kaizhong
Li Shaoping
Ryan Patrick
Xue Song
Blouin Mark
Seagate Technology LLC
Westman Champlin & Kelly P.A.
LandOfFree
Differential/dual CPP recording head does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Differential/dual CPP recording head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential/dual CPP recording head will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4018952