US 12,226,044 B2
Exterior material for cooking appliance and manufacturing method thereof
Jiyoung Song, Suwon-si (KR); Hyunseok Shin, Suwon-si (KR); Youngdeog Koh, Suwon-si (KR); Kwangjoo Kim, Suwon-si (KR); Taegyeong Kim, Suwon-si (KR); and Nohcheol Park, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jul. 8, 2022, as Appl. No. 17/860,615.
Application 17/860,615 is a continuation of application No. PCT/KR2022/008136, filed on Jun. 9, 2022.
Claims priority of application No. 10-2021-0114004 (KR), filed on Aug. 27, 2021; and application No. 10-2021-0148309 (KR), filed on Nov. 1, 2021.
Prior Publication US 2023/0070297 A1, Mar. 9, 2023
Int. Cl. A47J 36/04 (2006.01); C23C 14/02 (2006.01); C23C 14/06 (2006.01); C23C 14/24 (2006.01); C23C 14/58 (2006.01)
CPC A47J 36/04 (2013.01) [C23C 14/024 (2013.01); C23C 14/0605 (2013.01); C23C 14/24 (2013.01); C23C 14/5873 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An exterior material for a cooking appliance, comprising:
a base material;
a Diamond like carbon (DLC) coating layer provided on the base material;
an adhesive layer provided between the base material and the DLC coating layer to improve an adhesion force between the base material and the DLC coating layer; and
a plurality of laser holes provided in a surface of the cooking appliance exterior material, the plurality of laser holes having different depths,
wherein the plurality of laser holes includes at least one laser hole formed in the DLC coating layer, and at least one other laser hole formed in the DLC coating layer and the adhesive layer by penetrating the DLC coating layer and into the adhesive layer.