Comment 75 for bug 580961

Shimi Chen: I'm not sure, but 7zip may save file names in archives (including zip) in UTF-16 charset. unzip from ppa:frol/zip-i18n translates file names from OEM-charset which is applied by default in Windows for your language (probably not UTF-16, language is determined by your current locale), to charset of your current locale.

You may need to process such files with p7zip or p7zip-full in ubuntu.