Instructors & Yudansha

Springer Sensei, Dojocho

Fred Springer began his martial arts training studying Judo in Burlington, Ontario under Masatoshi (Bill) Umetsu (Rokudan). Umetsu sensei was considered an expert in ground work. He was also one of the original founders of Judo Canada. Springer Sensei taught Judo at Seikeikan from 1967 to 1979.

  Umetsu sensei had an interest in Aikido and frequently taught Aikido techniques to his students. In 1984 Springer Sensei began his study of Aikido under Kimeda Sensei (8th Dan). He was awarded his Shodan in 1993, Nidan in 2004, Sandan in 2007 and Yondan in 2012.. Springer sensei has also studied Iaido and Jodo. Sensei Springer is a retired Elementary School Principal and is also an amateur radio operator, VE3KYD and VE3EE.




Kerry S. Nash - Godan
Kerry Nash Sensei began Aikido in 1990 under Kevin Blok Sensei in Windsor, ON. Canada where he taught both childrens and adult classes. In 2001, Nash Sensei assisted Mark Lemmon Sensei in starting the Seikokan Dojo in Lasalle, ON where he remained until moving to Oakville in 2005. Under Blok Sensei,

Kerry graduated from a 20 month intensive instructor program (kenshu). Kerry has trained and demonstrated Aikido in Japan, California, Ohio, Michigan, Pennsylvania, England, Quebec and all over Ontario. In 2006, Nash Sensei successfully tested for and received his 4th Dan. Nash Sensei is employed as an IT professional with a focus on ERP systems and architecture. In his spare time, Nash Sensei enjoys music and playing the Bass and Harmonica.

On October 22nd 2011 Nash Sensei, was awarded his 5th Degree ranking.


Petrovich Sensei, Chief Instructor
Joe Petrovich Sensei, started Aikido in 1974 under Kushida Sensei. In 1975 he was introduced to Takeshi Kimeda Sensei and Mitsugoro Karasawa Sensei and trained with them regularly when in the Toronto area. In 1980 after completing post-graduate work at the University of Windsor Petrovich sensei returned to Hamilton, Ontario and helped to establish the Hamilton Yoshinkai Aikido Club at the Hamilton Japanese Cultural Centre with Kimeda Sensei.

The first visit in 1980 by Master Gozo Shioda,(founder of the Yoshinkai School of Aikido), to North America had an immeasurable and profound effect on his study of Aikido. As well He traveled to Japan in 1990 to practice at the Hombu dojo. In 1990, in order to further and deepen training, took the opportunity to study Muso Jikiden Eishin Ryu Iaido under Goyo Ohmi Sensei for several years. In 1995 at the urging of Fred Springer Sensei the Oakville Aikido Club was established and this blossomed into the Seikeikan Yoshinkai Aikido Dojo.

On a personal note, Sensei Petrovich believes we should study Aikido with a child's uninhibited sense of wonder and curiosity completely void of ego.





Brown Sensei, Petrovich Sensei,Nash Sensei,Springer Sensei,Danny,Dennis,Sasha


Seikeikan Yudansha
  • Tim W - Godan
  • David B - Sandan
  • Danny C - Sandan, NCCP Certified Coach
  • Dennis P - Sandan, NCCP Certified Coach, Standard First Aid & Level "C" CPR
  • Sasha M - Nidan
  • Scott H - Nidan
  • Jeff S - Nidan
  • Erica F - Nidan
  • Artem G - Shodan
  • David D - Shodan
  • Michelle N - Shodan
  • Natasha N - Shodan