Have had a look at some.
No 2 is like our basic bo drill
the others all have elements of the bo kata that we have in our syllabus.
Katori Shinto Ryu
comparison of the same kata demonstrated by students of two different teachers.http://video.google.com/videoplay?docid=-3611713097133357413&q=martial+arts+staff&hl=en
This one above looks like bokken and jo drills rather than bo. The handling of the jo is identical in parts to the 12 jo/bokken drills that we practice.