▁Tok im its u ▁I sh iz awa ▁Nikol ay ▁K ash in , ▁Russian ▁phys ician ▁and ▁discover er ▁of ▁the ▁K ash in - Be ck ▁D ise ase ▁O leg ▁K ash in ▁( born ▁ 1 9 8 0 ), ▁Russian ▁journalist ▁and ▁se aman ▁ ▁Category : Russ ian - language ▁s urn ames <0x0A> </s> ▁An ▁L - 1 ▁vis a ▁is ▁a ▁vis a ▁document ▁used ▁to ▁enter ▁the ▁United ▁States ▁for ▁the ▁purpose ▁of ▁work ▁in ▁L - 1 ▁status . ▁It ▁is ▁a ▁non - imm igr ant ▁vis a , ▁and ▁is ▁valid ▁for ▁a ▁relatively ▁short ▁amount ▁of ▁time , ▁from ▁three ▁months ▁( for ▁Iran ▁national s ) ▁to ▁five ▁years ▁( Ind ia , ▁Japan , ▁Germany ), ▁based ▁on ▁a ▁reci pro city ▁schedule . ▁With ▁extensions , ▁the ▁maximum ▁stay ▁is ▁seven ▁years . ▁ ▁L - 1 ▁vis as ▁are ▁available ▁to ▁employees ▁of ▁an ▁international ▁company ▁with ▁offices ▁in ▁both ▁the ▁United ▁States ▁and ▁abroad . ▁The ▁vis a ▁allows ▁such ▁foreign ▁workers ▁to ▁re loc ate ▁to ▁the ▁corpor ation ' s ▁US ▁office ▁after ▁having ▁worked ▁abroad ▁for ▁the ▁company ▁for ▁at ▁least ▁one ▁continuous ▁year ▁within ▁the ▁previous ▁three ▁prior ▁to ▁ad mission ▁in ▁the ▁US . ▁The ▁US ▁and ▁non - US ▁employ ers ▁must ▁be ▁related ▁in ▁one ▁of ▁four ▁ways : ▁ ▁parent ▁and ▁subs idi ary ; ▁branch ▁and ▁headquarters ; ▁sister ▁companies ▁owned ▁by ▁a ▁mut ual ▁parent