Taijishan, inotungamira maindasitiri ekugadzira michina, yakawana chinhanho chikuru nekugamuchira utility modhi patent kune yayo yekuvandudza yekudhonza-pasi punch drive. Patent yakabvumidzwa zviri pamutemo muna Zvita 20, 2021, ichimaka imwe nhanho hombe yekumberi kukambani maererano nekufambira mberi kwetekinoroji uye kuzivikanwa kweindasitiri.