Tozuda Patents

Patent portfolio assigned to Tozuda (verified via public assignee records). Tozuda (Philadelphia, US), electronics-free head-impact/concussion sensor that releases dye on impact. Multiple independent press sources (technical.ly, Medgadget, Lehigh) describe its 'patented technology'; exact patent number/count not confirmed via Google Patents (assignee page unreachable), so count left 0. No named customers or competitors confirmed on fetched pages.