US Patent Issued to Mizuno on Aug. 19 for "Bat system with performance limiting structure and methods of making same" (Japanese, Chinese, American Inventors)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,706, issued on Aug. 19, was assigned to Mizuno Corp. (Osaka, Japan).

"Bat system with performance limiting structure and methods of making same" was invented by Kohei Kikuchi (Osaka, Japan), Yohei Yamashita (Osaka, Japan), David Llewellyn (Norcross, Ga.), Thu Van Nguyen (Fujian, China), Chi-Hung Lee (Fujian, China), Renqin Zhang (Fujian, China) and Katsuhisa Hirano (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bat, which has a hollow barrel and an internal assembly configured to resist deformation of the hollow barrel, is disclosed. The internal assembly includes a rod disposed longitudinally in the hollow barrel, a ring attached to...