US Patent Issued to ZONE INFINITY on Dec. 2 for "Synthesis method of silicon nitride powder and sintered body" (South Korean Inventor)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,170, issued on Dec. 2, was assigned to ZONE INFINITY Co. LTD. (Gyeonggi-do, South Korea).

"Synthesis method of silicon nitride powder and sintered body" was invented by In Chul Cho (Gyeonggi-do, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A synthesis method of silicon nitride powder including preparing mixed powder having a particle size of 8 to 10 micro metre which includes 69 to 98 wt % of silicon powder, 1 to 30 wt % of Alpha-phase silicon nitride powder, and 1 to 10 wt % of silicon dioxide powder; performing heat treatment on the mixed powder in a nitrogen gas atmosphere of 0.85 to 1 atm at a temperature of 1,450 to 1,750deg C. for...