Japanese name format issue in csv

Hi ,

We have a zip file encloses CSV (to be mailed to users), which has japanese name messed up. We tried -o shift-jis, and it is not working out.

It works on scenario:

* unzip the csv file and open in notepad and just click save, den opens the csv, japanese names comes correctly.

But since it is to be emailed, saving every time is not possible for users. Kindly advise