ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,822, issued on March 31, was assigned to NEC Corp. (Tokyo).

"Code conversion apparatus, code conversion method, and computer readable recording medium" was invented by Yoshiyuki Ohno (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A code conversion apparatus first combines key columns, and detects a first function code for executing a grouping operation for each combined key column, next detects a key column name from the first function code, next generates a group key using the key column name for each two-dimensional array data of the first function code, next detects overlap key column names in the group keys, and generates an overlap grou...