Method and apparatus for forming a pattern
US4560997A · kind A · utility
38Cited by
26References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1983 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | Jun 29, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40087
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for forming a pattern in which an array duty factor of elementary pattern marks which are elements for forming a picture is no less than 0.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.