I've never heard any of these names said out loud before, so I could be way off on these... still, these would be my guesses:
Yayoi: yuh-YOY
Wakana: wuh-KAH-nuh
Azusa: uh-ZOO-suh (...reminds me of Aziza: uh-ZEE-zuh)
Musashi: moo-SAH-shee
Yuzuro: yoo-ZOO-roh
Makoto: muh-KOH-toh
Most of these sound Japanese to me -- if they are, you may also want to try asking this question at a forum for people who speak Japanese or live in Japan.