Tunnel current data storage apparatus having separate lever bodies
US5053995A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Jan 23, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/947
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage apparatus includes a first lever body having a piezoelectric driving section, and a second lever body which is disposed to separate from and to be perpendicular to the first lever body, and has a piezoelectric driving section. A recording medium is formed on a portion of the second lever body, and records desired data. A plurality of probes are disposed on a portion of the first lever body to oppose the recording medium at a predetermined interval, and detect a change in state at predetermined positions on the recording medium as a change in tunnel current or a change in three-dimensional pattern. A voltage applying circuit alternately applies predetermined voltages to the piezoelectric driving sections of the first and second lever bodies to separately drive the plurality of probes in different directions, thereby three-dimensionally scanning the recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.