Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Reexamination Certificate
2005-12-06
2005-12-06
Watkins, III, William P. (Department: 1772)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
C428S131000, C428S137000, C428S450000, C428S699000, C428S701000, C205S324000, C977S726000
Reexamination Certificate
active
06972146
ABSTRACT:
A structure having a hole, including a substrate, a first layer including an alumina hole, and a second layer disposed between the substrate and the fist layer, wherein the second layer contains silicon, and has a smaller hole than the alumina hole.
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Den Tohru
Fukutani Kazuhiko
Yasui Nobuhiro
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