Hello John, Thank you so much for your efforts. I only have found about half that info so I really appreciate it! I just checked out the wakizashi you spoke of, very nice!!! I have that movie and think its great, will have to watch it again now haha. If your happy to share some pics of your Nobuyoshi katana I would love to see it!!! It seems the Father and his sons were /are well respected smiths and their blades known for cutting ability. Thanks again John.
all the best
Greg