Hi Shanmukh,
Root cause of this issue is hidden in AGR_HIERT table where you will find Japanese descriptions are not maintained for those concerned transactions.
You can maintain this text through SE63>Short text>S3>ACGR Roles>Object Name (that is your role name under which concerned transactions have been maintained and please be sure that this one should be a ROOT role of Derived role that has been assigned to the user) then select Source and Target language (JA)>Edit> here you will find AGR_HIERT fields where original transaction text and below that field you can maintain Japanese text for that transaction. Then save it and check your Agr_Hiert table.
It will directly reflect the Japanese transaction text in to user's menu.
Regards,
Pratik