Resistor excellent in micro-linearity characteristic and wear resistance and variable resistor using the same
US6172595A · kind A · utility
6Cited by
4References
5Claims
0Family size
Assignee
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Key dates
| Filing date | May 24, 2000 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | May 24, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C10/305
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A variable resistor uses a carbon fiber-base resistor with a specific distribution of carbon particle sizes. Because the particle size distribution of carbon fiber is approximately equal to the normal distribution and 80% by volume or more carbon fiber is included in the particle size range from 1 to 20 .mu.m, high conductivity in the fiber length direction of carbon fiber that is served as structural material for improving the wear resistance does not affect the micro-linearity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.