Patterned metal plate and production thereof
US4978583A · kind A · utility
33Cited by
10References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1987 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Dec 22, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12993
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An uneven patterned metal strip or plate is formed with an uneven pattern as a surface decorative pattern. The pattern is constituted of one or more pattern unit containing a plurality of uneven dot. Each of the uneven dots has a size D. The uneven dots are arranged in a predetermined density to have given ratio .eta. of occupying area versus plane area in said pattern unit. The size D and area ratio .eta. being in a range of: EQU 10.ltoreq.D.ltoreq.300 (.mu.m) EQU 30.ltoreq..eta..ltoreq.100 (%) and the size of said pattern unit has minimum length of 1 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.