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US 6,307,714 B2Granted
Magnetic head
AssigneeAlps Electric Co., Ltd.
InventorHidezi Satoh
Life of this patent
Estimating the term…
Abstract
A magnetic head includes a slider having any one of recording and reproducing elements, and a flexure having an elastically deformative tongue. The slider and the flexure are bonded together with a resin adhesive therebetween. The resin adhesive has a Young's modulus E in a range of 700 to 5,200 kg/cm2 at 25° C. and a bond strength of 50 gf or more.
Claims8
A magnetic head comprising:
- a slider having any one of recording and reproducing elements;
- and
- a flexure having an elastically deformative tongue,
- said slider and said flexure being bonded together with a flexible resin adhesive therebetween, the flexible resin to reduce adhesive deformation,
- wherein said flexible resin adhesive has a Young's modulus E in a range of 700 to 5,200 kg/cm2 at 25° C. and a bond strength equal to or greater than 50 gf,
- wherein, at an operating temperature T of 25° C., said flexible resin has a product {E·(Tg−25° C.)} obtained by multiplying the Young's modulus E at 25° C. by the difference when 25° C. is subtracted from the glass transition temperature Tg of said flexible resin adhesive in a range of 7,000 to 234,000 kg·° C./cm2.
3 more elements
A magnetic head comprising:
- a slider having any one of recording and reproducing elements;
- and
- a flexure having an elastically deformative tongue,
- said slider and said flexure being bonded together with a thermoplastic adhesive, the thermoplastic resin to reduce adhesive deformation,
- wherein, said thermoplastic adhesive has a Young's modulus E in a range of 700 to 5,200 kg/cm2 at 25° C. and a bond strength equal to or greater than 50 gf,
- wherein, at an operating temperature T of 25° C., said thermoplastic adhesive has a product {E·(Tg−25° C.)} obtained by multiplying the Young's modulus E at 25° C. by the difference when 25° C. is subtracted from the glass transition temperature Tg of said thermoplastic adhesive in a range of 7,000 to 234,000 kg·° C./cm2.
3 more elements
Dependencies are inferred from the claim text.