ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,489, issued on April 21, was assigned to DAIICHI KIGENSO KAGAKU KOGYO Co. LTD. (Osaka, Japan).
"Zirconia powder, zirconia sintered body, and method for producing zirconia sintered body" was invented by Masayuki Takai (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A zirconia powder containing a stabilizer, and having a specific surface area of 20 m2/g or more and 60 m2/g or less and a particle diameter D50 of 0.1 micro metre or more and 0.7 micro metre or less, in which in a range of 10 nm or more and 200 nm or less in a pore distribution based on a mercury intrusion method, a peak top diameter in a pore volume distribution is 20 nm or...