Yamatoku with additional decorator marks

I am researching Yamatoku marked plates that include additional markings. It appears that Yamatoku produced blanks which were then decorated by others. I have found several marked by decorators.

Thanks to Maggie Xiao for permission to use her pictures 

Hizen Arita  decorated

The Yamatoku ヤマトク mark is off to the left side combined with the red Hizen/Arita mark

Tetsuka decorated

The Yamatoku ヤマトク mark is at the top with the red 

Tetsuka テツカ mark (up side down) on the bottom. 

Tetsuka or Tezuka is often found with the Yamatoku impressed mark

Here is an example of a Taisho era blue mark with Yamatoku impressed mark

http://www5e.biglobe.ne.jp/~urakudo/inban_MSW-0021.html

A Matsu mark with a roof meaning house of Matsu. The decorator?

 This mark is sometimes found on Yamatoku pieces.