Karate-do

JKA Instructors

Instructors Bio

Sensei Mervin Dixon, JKA 5th Dan

Photo of Sensei Mervin Dixon

Sensei Dixon is the instructor at the San Francisco dojo at JKA of CA SF City Center. Sensei Dixon started training karate in 1980 in Portland, Oregon. In 1984, he moved to San Francisco, California and started training under Sensei Haramoto. He has been an instructor since January 2000. When Sensei Dixon is not teaching karate, he is a full time construction manager with a B.S. in Structural Engineering. Sensei Dixon has the following JKA certifications:

  • Instructor
  • Examiner
  • Judge

Sensei Mark Morodomi, JKA 5th Dan

Photo of Sempai Mark Morodomi

Sensei Morodomi is the instructor of JKA of USF. He started training in JKA karate in 1974. He continued his training in college where he was team captain of the JKA Karate Club at Stanford University under Sensei Kenichi Haramoto. He has been an instructor at the University of California at Davis JKA Karate Club.

When Morodomi's not training or teaching karate, he is a full time attorney. Morodomi has the following JKA certifications:

  • Instructor
  • Examiner
  • Judge

Sensei Bryan Choo, JKA 5th Dan

Photo of Sensei Bryan Choo

Sensei Bryan Choo is the chief instructor of the JKA Shotokan Karate club. He started training in 1995 at Stanford University under Sensei Kenichi Haramoto and has been an instructor for the club since 2008. In addition to the Stanford dojo, he also teaches karate at the JKA of Palo Alto club. When he is not training or teaching karate, he is a full time engineer. Bryan has the following JKA certifications:

  • Instructor
  • Examiner
  • Judge

Sensei Sandra Cheevers, JKA 3rd Dan

Photo of Sensei Sandra Cheevers

Sensei Sandra Cheevers is the assistant instructor at the JKA of Palo Alto club. She began studying Japanese karate as a teenager and became All Hawaii State Champion in the mixed karate styles tournament. She continued training at Stanford University as the only woman at the time with the JKA Karate Club under Sensei Kenichi Haramoto. She was the JKA instructor at our Oracle Corp branch until she retired.

Sandra has the following JKA certifications:

  • Instructor
  • Examiner
  • Judge