Pocket knife inscription

[Woop]

A friend recently purchased a knife. He says he doesn't know what the side of it says, but he knows that it is in Japanese. Any ideas of what it says?

Thanks!

 

[Dotanbatan]

Registered Trademarked piece of Higo Morisada

 

[Toritoribe]

Need a Kanji Translated? Just ask! | Page 40 | Japan Forum

登録商標肥後守定駒
Tōrokushōhyō Higo no Kami Sadakoma
Registered Trademark Higo no Kami Sadakoma