Magneto-optical head and method of making coil for the same
US6618330B1 · kind B1 · utility
9Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2001 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Nov 20, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/1058
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magneto-optical head includes a slider, an objective lens, a coil and a transparent insulating layer. The coil is provided with upper and lower conductive patterns, wherein the lower pattern is brought closer to a storage medium than the upper pattern is. The lower pattern is made smaller in inner diameter than the upper pattern. The insulating layer fills the center of the coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.