Japanese Bayonet

[Jeroen wo2]

Hi,

I'd like to show you my latest Type 30 Bayonet.
It was produced by ''Kokura'' in Tokyo.
On the metal scabbard you can see 10 and then an other kanji text.
Is this from a regiment or a name? Can somebody translate it?
As you can see, I haven't clean the bayonet because i've got it a few days.

Kind Regards,

Jeroen Z.

[albacore]

The paint and number on the scabbard indicate that the bayonet was used after WWII in either Korea or Japan.