Title:
TRANSPARENT FILM HEATER
Document Type and Number:
WIPO Patent Application WO/2023/105971
Kind Code:
A1
Abstract:
[Problem] To provide a transparent film heater having a uniform temperature distribution. [Solution] A transparent film heater 1 according to the present invention is provided with: a film base material 2 that is transparent; a pair of electrodes 3, 4 formed in a strip shape on one surface of the film base material 2 and arranged so as to oppose each other; a heating element 5 comprising a transparent electroconductive film formed in a planar shape between the pair of electrodes 3, 4 so as to be electrically connected to the pair of electrodes 3, 4; and, terminals 6, 7 respectively electrically connected to one end of the pair of electrodes 3, 4 on the same side, either directly or through routing wiring 16, 17. The heating element 5 has a pattern that is divided into a plurality of electroconductive regions 5a, 5b, 5c, 5d in the direction from the one end that is the side on which the pair of electrodes 3, 4 are connected to the terminals 6, 7 to the other end. The plurality of electroconductive regions have equal values of (inter-electrode potential difference V) × (in-plane path length L) / (in-plane width W) in any of the electroconductive regions.
Inventors:
KOIZUMI TOMOAKI (JP)
YOKOYAMA TAKASHI (JP)
HASHIMOTO TAKUMI (JP)
YOKOYAMA TAKASHI (JP)
HASHIMOTO TAKUMI (JP)
Application Number:
PCT/JP2022/040027
Publication Date:
June 15, 2023
Filing Date:
October 26, 2022
Export Citation:
Assignee:
NISSHA CO LTD (JP)
International Classes:
H05B3/84; H05B3/20
Foreign References:
| JPS60112223U | 1985-07-30 | |||
| JPH0261978A | 1990-03-01 | |||
| JP2017199565A | 2017-11-02 |
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