发明公开
EP0737588A1 THERMAL HEAD AND METHOD OF MANUFACTURING SAME
失效
THERMO-KOPF UND SEIN HERSTELLUNGSVERFAHREN
- 专利标题： THERMAL HEAD AND METHOD OF MANUFACTURING SAME
- 专利标题（中）： THERMO-KOPF UND SEIN HERSTELLUNGSVERFAHREN
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申请号： EP95935562.9申请日： 1995-10-25
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公开(公告)号： EP0737588A1公开(公告)日： 1996-10-16
- 发明人: NAKAMURA, Yuji, Seiko Instruments Inc. , SATO, Yoshinori, Seiko Instruments Inc. , SAITA, Yoshiaki, Seiko Instruments Inc.
- 申请人： SEIKO INSTRUMENTS INC.
- 申请人地址： 8 Nakase 1-chome, Mihama-ku Chiba-shi, Chiba 261 JP
- 专利权人： SEIKO INSTRUMENTS INC.
- 当前专利权人： SEIKO INSTRUMENTS INC.
- 当前专利权人地址： 8 Nakase 1-chome, Mihama-ku Chiba-shi, Chiba 261 JP
- 代理机构： Sturt, Clifford Mark
- 优先权： JP267424/94 19941031
- 国际公布： WO9613389 19960509
- 主分类号： B41J2/335
- IPC分类号： B41J2/335
摘要：
A thermal head comprises at least a heating resistor (3), wire electrodes (4, 4a, 12) for supplying electricity to the heating resistor (3), and a protective film (9) covering the heating resistor and the surrounding wire electrodes, all of which are arranged on an insulating substrate (1). At least peripheral edge portions of the wire electrodes in areas of the protective film near the heating resistor are tapered in cross section whereby a difference in level between the substrate surface and the wire electrodes is smoothed and the covering protective film has a Vickers hardness Hv of not less than 1200.
公开/授权文献
- EP0737588B1 THERMAL HEAD AND METHOD OF MANUFACTURING SAME 公开/授权日：2000-03-15
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