Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2006-03-14
2006-03-14
Heinz, A. J. (Department: 2653)
Dynamic magnetic information storage or retrieval
Head
Core
C501S064000
Reexamination Certificate
active
07012783
ABSTRACT:
A magnetic head for a magnetic recording/reproducing device to conform to high-density recording, wherein a metal magnetic film with a high saturation flux density is employed and the mechanical strength of the sealing glass for magnetic heads, is improved thereby achieving a high reliability, high performance magnetic head. Also, this is provided a magnetic recording/reproducing device utilizing the magnetic head.Sealing glass for magnetic heads comprising, by oxide conversion, 17.2 to 25 wt % of SiO2, 1 to 10 wt % of B2O3, 58 to 75 wt % of PbO, 0.2 to 7 wt % of at least one of Al2O3and ZnO, and 0.2 to 5 wt % of at least one of Na2O and K2O, and a magnetic head and magnetic recording/reproducing device which utilize the sealing glass.
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International Search Report corresponding to application PCT/JP02/01992 dated Jul. 2, 2002.
English translation of Form PCT/ISA/210.
Hasegawa Shin-ya
Kamimoto Tetsuya
Kanai Mikie
Torii Hideo
Blouin Mark
Heinz A. J.
RatnerPrestia
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