A bit of help with these gimei signatures

[Katsujinken]

Hi folks,

 

I believe the mei on the blade is Dotanuki Masakuni, but I would appreciate a full transliteration (and correction if needed). 

The nakago on the blade may even be aged / falsely patinated!

[Katsujinken]

And here’s the tsuba, which has me stumped. Also probably gimei. 

[mecox]

Michael,   九州肥後同田貫正国　　looks like Kyushu Higo Dotanuki Masakuni, but with some rather rough cutting

[Katsujinken]

Okay that’s what I thought. And yes, “rough” cutting for the signature is putting it lightly! 
 

It’s a good sword though. Will have a good life in the dojo. 

[uwe]

Tsuba is signed “安家” + kao (Yasuie). Looks very odd…possibly cast?!

[Katsujinken]

Could be! I’ll take a closer look.