Sensei Castellano is one of the most highly respected martial arts instructors in the San Francisco Bay Area, and is now chief instructor of the Satsuma Dojo. He currently holds a 6th dan in Shotokan Karate from karate legend Hirokazu Kanazawa and a 3rd dan from Iwao Tamotsu, the familial head of the Renshinkan style of Shorinji Ryu Karate.
The Satsuma Dojo was founded by Shihan Wada.

Shihan Wada is a 7th dan in Shorinji ryu and a 6th dan in Shotokan. He opened the Satsuma Dojo over 30 years ago, and has taught karate throughout the Bay Area. Wada Shinan was the chief instructor of the Satsuma Dojo until an unfortunate myocardial infarction in 2001.
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Shihan Wada

Sensei
Jay Castellano