I've made a spread sheet containing a small Japanese-English climbing dictionary
I'm sure there are a lot of mistakes and I would be glad for any help I could get.
If you feel that you can contribute, send me an e-mail (my mail-address can be found on my profile page) and I can add you as an collaborator on google docs.
When compiling the list Yuuko Yamaguchi's Japanese translation of Carl J. Ockier's “The Climbing Dictionary” was very helpful. Mr Morimoto and Mr Yamada have also been very helpful.