YOU SAID:
Mi name is Ivan sergeevich
INTO JAPANESE
Mi の名前はイワン セルゲエヴィチです。
BACK INTO ENGLISH
MI name is Ivan sergeyevich.
INTO JAPANESE
イワン sergeyevich MI と申します。
BACK INTO ENGLISH
My name is Ivan sergeyevich MI.
INTO JAPANESE
私の名前はイワン sergeyevich MI です。
BACK INTO ENGLISH
My name is Ivan sergeyevich MI.
That didn't even make that much sense in English.