US Patent Issued to LAVA INTERNATIONAL on Sept. 30 for "Laying material, structure for fitness studio, and structure for sauna" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,857, issued on Sept. 30, was assigned to LAVA INTERNATIONAL INC. (Tokyo).

"Laying material, structure for fitness studio, and structure for sauna" was invented by Takahiko Sumi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention addresses the problem of providing a flooring material whereby it becomes possible to improve an anti-aging effect of an activity in various facilities. The present invention provides a flooring material containing a stone material, in which the stone material contains silicon dioxide in an amount of 67.0 to 80.0% by mass, inclusive, relative to the whole amount of the stone material."

The patent wa...