ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,214,932, issued on Feb. 4, was assigned to IDEMITSU UNITECH Co. LTD. (Tokyo).
"Zipper tape and container equipped with zipper tape" was invented by Hiroaki Yoshimura (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A zipper tape is in an elongated shape and includes, in a cross-sectional shape, a pair of base strips and engagement portions projecting from surfaces facing each other of the pair of respective base strips, the engagement portions being engageable with each other. At least the engagement portions are each formed of a first biodegradable resin composition having a yield strain of 3.4% or more during a tensile test."
The patent wa...