ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,631, issued on March 25, was assigned to OSAKA SODA Co. LTD (Osaka, Japan).
"Silver nanoparticles" was invented by Takamichi Mori (Osaka, Japan), Junichiro Minami (Osaka, Japan), Naruhito Iwasa (Osaka, Japan) and Masatoshi Okuda (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides silver nanoparticles that form a sintered body having a high shear strength and a low specific resistance when sintered at a low temperature (for example, 200deg C. or less), even though the silver nanoparticles have an average particle diameter as large as 200 nm or more. Silver nanoparticles having an average particle diameter of 2...