US 12,439,483 B2
Heat-generating plate
Hirotoshi Suetsugu, Tokyo-to (JP); Manabu Hirakawa, Tokyo-to (JP); Satoshi Goishihara, Tokyo-to (JP); Hidenori Nakamura, Tokyo-to (JP); Kazuo Matsufuji, Tokyo-to (JP); and Koichi Kinoshita, Tokyo-to (JP)
Assigned to DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Filed by DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Filed on May 25, 2021, as Appl. No. 17/329,778.
Application 17/329,778 is a division of application No. 15/776,243, abandoned, previously published as PCT/JP2016/084086, filed on Nov. 17, 2016.
Claims priority of application No. 2015-224986 (JP), filed on Nov. 17, 2015; application No. 2015-237841 (JP), filed on Dec. 4, 2015; application No. 2015-238751 (JP), filed on Dec. 7, 2015; application No. 2015-245413 (JP), filed on Dec. 16, 2015; application No. 2015-245419 (JP), filed on Dec. 16, 2015; application No. 2015-248646 (JP), filed on Dec. 21, 2015; and application No. 2016-002857 (JP), filed on Jan. 8, 2016.
Prior Publication US 2021/0282235 A1, Sep. 9, 2021
Int. Cl. H05B 3/84 (2006.01); H05K 1/02 (2006.01); H02G 5/00 (2006.01)
CPC H05B 3/84 (2013.01) [H05K 1/0201 (2013.01); H02G 5/00 (2013.01); H05B 2203/002 (2013.01); H05B 2203/005 (2013.01); H05B 2203/011 (2013.01); H05B 2203/013 (2013.01); H05B 2203/017 (2013.01); H05B 2203/035 (2013.01); Y02B 30/00 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A heat-generating plate that generates heat when a voltage is applied, comprising:
a pair of glasses;
a pair of bus bars to which the voltage is applied; and
a heat-generating conductor configured to couple between the pair of bus bars, wherein
the heat-generating conductor includes a plurality of conductive thin wires that linearly extends between the pair of bus bars and couples between the pair of bus bars,
at least one of said conductive thin wires has a substantially trapezoidal cross section,
a width W of at least one of said conductive thin wires is different at each position along a normal direction of a sheet with the heat-generating conductor, and
an average Wave of the width W of at least one of said conductive thin wires is within a range of the following formula(a) relative to a standard deviation δ of distribution of the width W:
0≤4δ/Wave≤0.3  Formula(a),
wherein at least one of said conductive thin wires includes a large curvature portion and a small curvature portion having a smaller curvature than a curvature of the large curvature portion, and
the width W of the conductive thin wire is thin in the large curvature portion and thick in the small curvature portion.