Pickup stylus
US4458346A · kind A · utility
5Cited by
7References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1981 |
| Grant date | Jul 3, 1984 |
| Priority date | — |
| Expiry date | Nov 9, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24917
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A pickup stylus comprises a diamond stylus body having a rough surface and a conductive coating deposited onto said rough surface. The rough surface is made by ion bombardment process. The pickup stylus is useful for information playback in video and/or audio disc system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.