Kubota is a bona fide tuff guy. He's as friendly as he is dangerous. As he approaches 70, he still teaches classes in the Hombu in Glendale, CA as well as traveling around the world to their affiliate schools.
Everyone knows him as the man who invented the Kubotan key chain but this only scratches the surface of his accomplishments & skills.
His IKA has an international tournament every couple of years & his local tournament @ Occidental College is an annual event. The style incorporates many "street" elements
One of his top students, Rod Kuratomi is a personal friend of mine. If you're interested, I'd recommend the style/group. Link:
http://www.ikakarate.com/