Mail contacts for Japanese Teams

I and about 100 other US schedule collectors routinely try to contact the Japanese teams in hopes of getting some pocket schedules. Yes, I know it's silly... but that's what we collect.
The major problem is that none of us are literate in Japanese and there are very few sources for getting updated mailing addresses for the teams. We are always willing to include international postal coupons to help cover the cost of mailing ten schedules to the US, but we have no proper way of contacting the teams.
I have been able to deduce what you stated before- that email is not an easy way to go to contact teams. I would also guess that since we are asking for the actual physical schedules to be sent to us that it would be more polite to send a letter rather than an email.
Given what we are trying to achieve, do you have any advice or resources we might turn to for the information? We're all working off of old copies of Ed Kobak's International Sports Directory, and we're getting nowhere...