Magnetic head
US5919567A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1996 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Nov 27, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head is disclosed which includes in a preferred embodiment a head core (1) sandwiched between a first slider (2) and a second slider (3) both bonded to the core (1), said first and second sliders (2) and (3) being made from a resin composition comprising an epoxy resin composition and a filler comprising silica having a coefficient of thermal expansion of from 5.times.10.sup.-7 to 6.times.10.sup.-7 /.degree. C. as the main component and from 3 to 30 wt % at least one minor component selected from alumina, mullite, barium titanate, forsterite, steatite, and zircon, the amount of the filler being from 50 to 95 wt % based on the amount of the epoxy resin composition. The magnetic head is inexpensive, does not suffer deterioration of the magnetic characteristics of the head core, and is free from the problem of sticking to a floppy disk, head wear, or media wear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.