Dear John.
No answers but some thoughts. First, small yari on very short poles are usually called kago yari and reputed to have been for use in palanquin. There is a wealth of documentary evidence for naginata in use on the battlefield and surviving early naginata. I suspect that the tradition for them being women's weapons is an Edo development and even then not entirely the case. I have formed the opinion that the rather short and sharply curved blade with an enlarged tip, (Tomoe sugata?) is intended as a weapon for women but there are some quite late naginata, shinshinto, that were clearly never intended for this given their size. I suspect that for women the shaft would be a little shorter and possibly allow for their use indoors in certain buildings. I also recall a reference to polearms mounted over the door in a preserved samurai home.
There is the Knutsen book available on polearms. It has much to say from a practical aspect regarding their use but is sometimes frustratingly short on the information that one would like.
All the best.