Inventor
LIU QIANXI
CN6 patents
Patents
6 patentsUS9927029B2Mar 27, 2018
Multilayer multi-element composite hard pvd coating on the surface of a piston ring, a piston ring and a preparation process
ASIMCO SHUANGHUAN PISTON RING YIZHENG CO LTD2 citations65
US12553516B1Feb 17, 2026
Thermal ablation-resistant, wear-resistant, and friction-reducing coated piston ring, preparation method thereof and engine
ASIMCO SHUANGHUAN PISTON RING YIZHENG CO LTD0 citations57
US12203553B1Jan 21, 2025
Wear-resistant and low-friction coated piston ring and preparation method therefor
ASIMCO SHUANGHUAN PISTON RING YIZHENG CO LTD1 citations54
US11401598B2Aug 2, 2022
Friction reduced and wear resistant coating, preparation method thereof and piston ring
ASIMCO SHUANGHUAN PISTON RING YIZHENG CO LTD0 citations53
US11215283B2Jan 4, 2022
Diamond-like coating for piston ring surfaces, piston ring and processes for preparing the same
ASIMCO SHUANGHUAN PISTON RING YIZHENG CO LTD0 citations44
US12345336B1Jul 1, 2025
Piston ring with hard plating, and preparation method therefor
ASIMCO SHUANGHUAN PISTON RING YIZHENG CO LTD0 citations39