# US 12,010,767 B2 · Glass plate having a heat generating function and a manufacturing method for the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,767 B2 - Document ID: US12010767B2 - Status: Granted - Kind: B2 - Application number: 17/184,227 - Filed: 2021-02-24 - Published: 2021-10-21 - Granted: 2024-06-11 - Earliest claimed: 2020-04-20 - Assignees: Hyundai Motor Company; Kia Motors Corporation; KCC Glass Corporation - Applicants: Hyundai Motor Company; Kia Motors Corporation; KCC Glass Corporation - Inventors: Jong Min Park; Nak Kyoung Kong; Jang Suk Hong; Chan Hee Park; Yong Jin Kong - Web page: https://patentgrep.com/patent/US12010767B2 ## CPC - H05B 3/86: the heating conductors being embedded in the transparent or reflecting material {(H05B3/845 takes precedence)} - B32B 17/10036: {comprising two outer glass sheets} - B32B 17/10119: {having a composition deviating from the basic composition of soda-lime glass, e.g. borosilicate} - B32B 17/10183: {being not continuous, e.g. in edge regions} - B32B 17/10192: {patterned in the form of columns or grids} - B32B 17/10229: {Metallic layers sandwiched by dielectric layers} - B32B 17/10348: {comprising an obscuration band} - B32B 17/10385: {for ohmic resistance heating} - B32B 17/10761: {containing vinyl acetal} - B32B 17/10779: {containing polyester} - B32B 17/10788: {containing ethylene vinylacetate} - B32B 17/10871: {in combination with particular heat treatment} - H05B 3/06: Heater elements structurally combined with coupling elements or holders - H05B 3/74: Non-metallic plates {, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits} - B60J 1/001: {Double glazing for vehicles} - B60J 1/002: {with means for clear vision, e.g. anti-frost or defog panes, rain shields (window heating in H05B3/84, H05B3/86)} - H05B 2203/013: Heaters using resistive films or coatings - H05B 2203/016: Heaters using particular connecting means - H05B 2203/017: Manufacturing methods or apparatus for heaters - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - B60J: WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES (fastening, suspending, closing, or opening of such devices E05) ## Abstract A glass plate according to the present disclosure includes: a coated area and an uncoated area; a heating layer that is coated on the coated area and includes a conductive material generating heat by receiving power; and two bus bars that extend along an extension direction, that are electrically connected to the heating layer to supply the power to the heating layer, and that are spaced apart from each other along a reference direction orthogonal to the extension direction. The uncoated area includes a plurality of uncoated lines having a length along the reference direction and formed as a single line bent at least once. The plurality of uncoated lines is disposed to be spaced apart along the extension direction. ## Claims ### Claim 1 A glass plate comprising: a glass layer configured to include a coated area and an uncoated area; a heating layer configured to be coated on the coated area and to include a conductive material generating heat by receiving power; and two bus bars configured to extend along an extension direction, to be electrically connected to the heating layer to supply the power to the heating layer, and to be spaced apart from each other along a reference direction orthogonal to the extension direction, wherein the uncoated area includes a plurality of uncoated lines having a length along the reference direction and formed as a single line bent at least once, wherein the plurality of uncoated lines is disposed to be spaced apart along the extension direction, wherein each of the plurality of uncoated lines includes a plurality of uncoated patterns disposed to be spaced apart along the reference direction and connected to each other, and wherein each of the plurality of uncoated patterns is formed to include a plurality of reference lines extending along the reference direction and a plurality of extension lines extending along the extension direction and is formed as a single continuous line that is bent. ### Claim 2 (depends on 1) The glass plate of claim 1, wherein each of the uncoated patterns includes a portion formed in an ‘S’ shape. ### Claim 3 (depends on 1) The glass plate of claim 1, wherein each of the uncoated patterns includes two twisting patterns that are twisted in a clockwise or counterclockwise direction from two sites spaced apart from each other with respect to the reference direction toward a center, respectively, and are connected to each other at the center. ### Claim 4 (depends on 1) The glass plate of claim 1, wherein the plurality of uncoated lines had an area greater than 15% and less than 25% of the coated area. ### Claim 5 (depends on 1) The glass plate of claim 1, wherein a shorter one of the two bus bars has a length with respect to the extension direction, which is twice as large as a separation distance of the two bus bars separated along the reference direction. ### Claim 6 (depends on 1) The glass plate of claim 1, wherein the uncoated area includes a circumferential region surrounding the coated area. ### Claim 7 (depends on 1) The glass plate of claim 1, wherein each of the uncoated lines is formed in a spiral shape. ### Claim 8 A glass plate comprising: a glass layer configured to include a coated area and an uncoated area; a heating layer configured to be coated on the coated area and to include a conductive material generating heat by receiving power; and two bus bars configured to extend along an extension direction, to be electrically connected to the heating layer to supply the power to the heating layer, and to be spaced apart from each other along a reference direction orthogonal to the extension direction, wherein the uncoated area includes a plurality of uncoated lines each of which has a length with respect to the reference direction, is continuously connected, and does not surround and divide the coated area, wherein the plurality of uncoated lines is disposed to be spaced apart along the extension direction, wherein each of the plurality of uncoated lines includes a plurality of uncoated patterns disposed to be spaced apart along the reference direction and connected to each other, and wherein each of the plurality of uncoated patterns is formed to include a plurality of reference lines extending along the reference direction and a plurality of extension lines extending along the extension direction and is formed as a single continuous line bent at least once. ### Claim 9 A method of manufacturing a glass plate comprising: coating a heating layer on a coated area of a first glass layer including the coated area and the uncoated area to form a plurality of uncoated lines formed of a single line bent at least once; arranging bus bars to be in contact with the heating layer; sequentially stacking a thermoplastic polymer layer and a second glass layer on the heating layer; and bonding the stacked layers by pressing and heating, wherein each of the plurality of uncoated lines includes a plurality of uncoated patterns disposed to be spaced apart along the reference direction and connected to each other, and wherein each of the plurality of uncoated patterns is formed to include a plurality of reference lines extending along the reference direction and a plurality of extension lines extending along the extension direction and is formed as a single continuous line bent at least once.