I have just posted a long reply to a dialogue from a few years ago, that is essentially about ojime and Japanese beads—wherein the topic of kakuten is pursued.

In case anyone is interested in this material. Jamey

http://beadcollector.net/cgi-bin/anyboard.cgi?fvp=/openforum/&cmd=iYz&aK=99265&iZz=99265&gV=0&kQz=&aO=1&iWz=0