Should I register my trademark using local language characters in Japan?

Yes, to ensure wider and stronger protection in Japan, it's advisable to register your trademark in local characters.

If you only register the trademark in its original form (Latin characters), it might not fully protect its equivalent in the local language. This could allow others to use or register the same or a similar trademark in local characters.

Besides the legal advantages, registering and using the trademark in local characters can also offer commercial benefits. People in Japan will more easily recognize your brand if they can read and pronounce it correctly.

Registering your trademark both in its original form and in local transliteration/translation will offer better protection against potential infringements.