Ceramic member having fine throughholes

Details Ceramic member having fine throughholes Ceramic member having fine throughholes

1997-10-24

1999-06-01

Watkins, III, William P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428137, 428215, 428688, 347 55, 347 76, 347141, B32B 324, B41J 2135

Patent

active

059086823

ABSTRACT:
Unitarily sintered ceramic member having fine throughholes. unitarily sintered material. The ceramic member has a ceramic substrate having at least one window and a thin ceramic plate laminated onto the substrate so as to cover the window, wherein the thin ceramic plate has a plurality of fine throughholes at the portion(s) corresponding to the at least one window and each hole-to-hole distance is 70 .mu.m or less. This ceramic member having fine throughholes is made of a material of heat resistance, abrasion resistance and low thermal expansion and satisfies the requirements of high density, high precision and increased reliability to be possessed by such apparatuses as encoders, high-precision fine electric field shutters, ion current-controlling heads, scales and the like.

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patent: 5600197 (1997-02-01), Takeuchi et al.
patent: 5728244 (1998-03-01), Nanataki et al.
National Technical Report vol. 35 No. 4 dated Aug. 1989, pp. 32-39 (Yoshimasa Itoh et al.) "Beam Jet Print Head" (with partial translation).
"Ink Jet Printer" publication dated Jul. 20, 1988, pp. 139-140 and p. 238.

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