Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2008-05-06
2008-05-06
Heinz, A. J. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
C360S317000, C029S603100
Reexamination Certificate
active
11050892
ABSTRACT:
A method of manufacturing magnetic heads comprises the step of: fabricating a magnetic head substructure by forming components of a plurality of magnetic heads on a single substrate, wherein a plurality of rows of pre-head portions that will be the respective magnetic heads later are aligned in the substructure; and fabricating the magnetic heads by separating the pre-head portions from one another through cutting the substructure. In the substructure first resistor elements and second resistor elements are formed. Each of the first resistor elements has a resistance that varies depending on the location of an end of an MR element located in a medium facing surface along the direction orthogonal to the medium facing surface. Each of the second resistor elements has a resistance that varies depending on the location of an end face of a track width defining portion located in the medium facing surface along the direction orthogonal to the medium facing surface. The medium facing surfaces are formed while monitoring the resistance values of the first and second resistor elements.
REFERENCES:
patent: 4656546 (1987-04-01), Mallory
patent: 4672493 (1987-06-01), Schewe
patent: 6370763 (2002-04-01), Watanuki et al.
patent: 6504675 (2003-01-01), Shukh et al.
patent: 6557241 (2003-05-01), Sasaki
patent: 6588091 (2003-07-01), Chang et al.
patent: 6623330 (2003-09-01), Fukuroi
patent: 6687084 (2004-02-01), Takahashi et al.
patent: 6710973 (2004-03-01), Okada et al.
patent: 6776690 (2004-08-01), Bunch et al.
patent: 6807722 (2004-10-01), Sasaki et al.
patent: 6884148 (2005-04-01), Dovek et al.
patent: 6935923 (2005-08-01), Burbank et al.
patent: 6997784 (2006-02-01), Bunch et al.
patent: 7006326 (2006-02-01), Okada et al.
patent: 7096567 (2006-08-01), Shindo et al.
patent: 7133252 (2006-11-01), Takano et al.
patent: 2003/0151850 (2003-08-01), Nakamura et al.
patent: 2004/0223258 (2004-11-01), Giorgis et al.
patent: 2006/0028770 (2006-02-01), Etoh et al.
patent: 2006/0044683 (2006-03-01), Matono et al.
patent: A-2002-092821 (2002-03-01), None
patent: A-2002-197615 (2002-07-01), None
patent: A-2003-203311 (2003-07-01), None
patent: A-2003-242607 (2003-08-01), None
patent: A-2004-335085 (2004-11-01), None
patent: A-2006-048806 (2006-02-01), None
patent: A-2006-073088 (2006-03-01), None
Araki Hironori
Ishizaki Kazuo
Itoh Hiroyuki
Li Dong-Hong
Sasaki Yoshitaka
Headway Technologies Inc.
Heinz A. J.
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