Shadow mask for cathode ray tube and method of manufacturing same
US6252343A · kind A · utility
0Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Jan 20, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/0733
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a shadow mask for a cathode ray tube (CRT) and a method of manufacturing the same. The shadow mask includes a solid solution hardening material and a precipitation hardening material. The method includes the steps of heat treating a metallic plate having a plurality of apertures formed therein using a carburizing gas, and press-forming the metallic plate into a shadow mask shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.