Unicode characters (ie. Japanese) in vCenter 5.1

I try to find information about using unicode (especially Japanese) characters in vCenter 5.1.

This is, can i use unicode characters like ぐ  け  げ  こ  ご  さ  ざ  し  じ  す  ず for:

esxi host fqdn
vCenter address fqdn
vCenter user name
vCenter password

vShield address
ESXi root-password
vCenter datastore
VM Port Group (vSwitch)

fqdn - generally it is not supported by some DNS servers, but can be used - as in MS Windows DNS server.