Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Forming nonplanar surface
Patent
1997-06-13
2000-05-30
Angebranndt, Martin
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Forming nonplanar surface
23546216, 21912185, 430945, B23K 2602
Patent
active
060689668
ABSTRACT:
The bar-code printing method of the present invention comprises a step of irradiating the circumferential surface of a metal tube with laser beams so as to make at least one group of thin elementary lines arranged in parallel with each other at intervals. The width of the intervals is determined so that each group of elementary lines can be detected as one of the thick lines contained in the bar-code.
REFERENCES:
patent: 4585931 (1986-04-01), Duncan et al.
patent: 4810867 (1989-03-01), Speicher
patent: 4822987 (1989-04-01), Goldenfield et al.
patent: 5175425 (1992-12-01), Spratte et al.
patent: 5247154 (1993-09-01), Ahmed
patent: 5646391 (1997-07-01), Forbes et al.
Angebranndt Martin
Mitsubishi Nuclear Fuel Co.
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