Title:
THERMAL HEAD AND THERMAL PRINTER PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2014/051143
Kind Code:
A1
Abstract:
[Problem] To provide: a thermal head which is capable of reducing heat concentration on a heat generation part; and a thermal printer which is provided with this thermal head.
[Solution] A thermal head (X1) is provided with: a substrate (7); a plurality of heat generation parts (9) that are arrayed on the substrate (7); electrodes (17, 19) that are electrically connected to the heat generation parts (9); and a protective layer (25) that covers the heat generation parts (9) and a part of the electrodes (17, 19). The protective layer (25) comprises a first protective layer (2) that is provided on the heat generation parts (9), and a second protective layer (4) that is provided on the first protective layer (2) and has a higher heat conductivity than the first protective layer (2). The width (W4) of the second protective layer (4) is larger than the width (W2) of the first protective layer (2) when viewed from the array direction of the heat generation parts (9).
Inventors:
SHINTANI SHIGETAKA (JP)
YONETA MASASHI (JP)
YONETA MASASHI (JP)
Application Number:
PCT/JP2013/076561
Publication Date:
April 03, 2014
Filing Date:
September 30, 2013
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
B41J2/335
Foreign References:
| JPH03275365A | 1991-12-06 | |||
| JP2002178549A | 2002-06-26 | |||
| JPH0679896A | 1994-03-22 | |||
| JPH04110166A | 1992-04-10 | |||
| JPH03193363A | 1991-08-23 | |||
| JPS6381062A | 1988-04-11 | |||
| JPS5924345U | 1984-02-15 |
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