摘要:
Electrodes for a magnetoresistive sensor can be formed easily by a method wherein a double-layer structure of Mo and Al on a film of a magnetoresistive material such as permalloy is formed to have a predetermined pattern, firstly by exposing an Al layer to a chemical etching solution or subjecting the Al layer to the ion-milling treatment to give said Al layer said pattern and then subjecting a Mo layer to the plasma etching or reactive sputter etching treatment to give said Mo layer said pattern.
摘要:
A compound represented by the following formula ##STR1## wherein A represents a direct bond or the bond --0--CH.sub.2--,B represents a C.sub.1 -C.sub.11 alkylene group bonded to a carbon atom of the aromatic ring D either directly or through --O--, --S--, --SO-- or --NH--,W represents a carbon or nitrogen atom,R.sub.1 represents a C.sub.3 -C.sub.7 alkyl group, a hydroxy-C.sub.1 -C.sub.6 alkyl group, or a phenyl- or diphenyl-alkyl group with the alkyl group having 1 to 4 carbon atoms,R.sub.2 represents a member selected from the group consisting of hydrogen, halogen, OH, C.sub.1 -C.sub.4 alkyl, NO.sub.2, C.sub.1 -C.sub.4 alkoxy, acetyl, allyloxy, carbamoyl and sulfamoyl, and when two or more R.sub.2 groups exist, they may be identical or different, andn represents 1, 2 or 3 and m represents 1 or 2, provided that n+m.gtoreq.4;and an acid addition salt thereof; a process for producing the same; and a pharmaceutical composition comprising aforesaid compound.
摘要:
A method for producing a magnetic head, comprising the step of irradiating peripheral parts other than a track portion and/or a slider portion with a laser beam so as to selectively remove surface parts of the irradiated parts, thereby to form the track portion and/or the slider portion. According to this method, the track portion and/or the slider portion of the magnetic head can be worked at high working rate, at high precision and with low working deformation, with the result that the magnetic head of excellent reproduced output and crosstalk characteristics can be readily manufactured.