Mochida Moriji is considered one of few great swordsman of the 20th century and was thus dubbed the "Master Swordsman of the Showa period" by many of his peers. He was the last person to have ever been awarded the rank of 10th Dan. Mochida Sensei was the Kendo teacher at the famed Noma Dojo that hosted so many famous martial artist over the years and even O Sensei demonstrated there.
Mochida Sensei was well known for his kizeme which is one of the highest level techniques in martial arts where one uses ki to either lead or disrupt their opponents.
In the first video below you can see how strong Mochida Sensei is in Kendo. In the second video you can see a little about Kendo and some quotes by him.
https://www.youtube.com/watch?v=IuI_SambVVk
https://www.youtube.com/watch?v=DmLfnWwP0g0