ALEXANDRIA, Va., June 16 -- United States Patent no. 12,307,313, issued on May 20, was assigned to NITTA Corp. (Osaka, Japan).
"IC tag" was invented by Toshiharu Shimai (Yamatokooriyama, Japan) and Hirofumi Tsujimoto (Yamatokooriyama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An IC tag according to the present invention includes: an IC chip (2); a dipole antenna (3) for electrically transmitting and receiving information stored in the IC chip (2); and a sheet-shaped substrate (1) that supports the IC chip (2) and the dipole antenna (3). In this IC tag, 0.1less than equal toR/Lless than equal to2.5 is satisfied, where R is a resistance value between two ends (S1, S2) of the dipole antenna (3) and L...