Title:
THERMAL PRINTING HEAD, SUBSTRATE USED THEREFOR AND METHOD FOR PRODUCING THE SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/1995/035213
Kind Code:
A1
Abstract:
A thermal printing head which comprises a substrate (2) made of an insulating material, a heat generating resistor (3) formed on the substrate (2) for forming a plurality of heat generating dots, patterns of conductive material (5, 6) formed on the substrate (2) in such a manner as to be electrically connected to the heat generating resistor (3) and a driving element mounted on the substrate (2) for selectively activating the heat generating dots for generating heat via the patterns of conductive material (5, 6), wherein the substrate (2) has a raised portion (2a) at a position on the substrate (2) where the heat generating resistor (3) is formed and further is provided, in the raised portion (2) position and inside its thicker portion, with a hollow portion (10) extending along the heat generating resistor (3). The present invention also provides a method for producing the substrate (2).
Inventors:
TANIGUCHI HIDEO (JP)
OBATA SHINOBU (JP)
KINOSHITA HIROSHI (JP)
OBATA SHINOBU (JP)
KINOSHITA HIROSHI (JP)
Application Number:
PCT/JP1995/001216
Publication Date:
December 28, 1995
Filing Date:
June 19, 1995
Export Citation:
Assignee:
ROHM CO LTD (JP)
TANIGUCHI HIDEO (JP)
OBATA SHINOBU (JP)
KINOSHITA HIROSHI (JP)
TANIGUCHI HIDEO (JP)
OBATA SHINOBU (JP)
KINOSHITA HIROSHI (JP)
International Classes:
B41J2/335; H05K1/02; H05K1/16; (IPC1-7): B41J2/335
Foreign References:
| JPS606478A | 1985-01-14 | |||
| JPH03290268A | 1991-12-19 | |||
| JPS6013565A | 1985-01-24 | |||
| JPS6295240A | 1987-05-01 |
Other References:
See also references of EP 0767065A4
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