Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2008-05-27
2008-05-27
Pham, Hai C (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S242000
Reexamination Certificate
active
11412974
ABSTRACT:
The present invention provides a laser unit using a seal member whose central and peripheral portions will not affect each other to produce strain during mounting and which can be handled as a single component.In the laser unit100according to the present invention, a central portion41and a peripheral portion42of a seal member40used are separated from each other by slits43. Therefore, when the seal member40is mounted, the central and peripheral portions will not affect each other to increase strain. In addition, because the central and peripheral portions are connected to each other at several points by bridging portions44, the seal member40can be handled as a single component, which is very convenient.
REFERENCES:
patent: 4868673 (1989-09-01), Negoro
patent: 6172786 (2001-01-01), Fujita et al.
patent: 6802910 (2004-10-01), Murakami et al.
patent: 55-146254 (1980-11-01), None
patent: 11-223792 (1999-08-01), None
patent: 11-245442 (1999-09-01), None
patent: 2000098287 (2000-04-01), None
Pham Hai C
Toshiba Tec Kabushiki Kaisha
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