The Aikido Yoshinkan Yoseikai (AYY) was founded by Parker Shihan to promote Yoshinkan Aikido throughout North America and aboard. The name YOSEIKAI (養精会) was given to Parker Shihan by his instructor Kiyoyuki Terada Hanshi.
The character YO (養)is the same as the YO found in YOSHINKAN. SEI (精) is taken from Terada Hanshi's first name and is the same character that is used in his organization SEISEIKAI as well as many of the dojo's named by Terada Hanshi. The combination of the two characters coming together are reflective of Parker Shihan's Aikido and signify the relationship of the two major schools of thought found in Yoshinkan Aikido.
The AYY is comprised of affiliated schools in the US & Canada. These affiliates held yearly workshops with Parker Shihan and were accepted into his organzation. In addition, schools in Saudi Arabia and Philippines were welcomed into the organization through affiliation with the Sacramento Seikeikan Dojo; and solidified the relationship via a 2009 clinic in the Kingdom of Bahrain. All instructors within the AYY are AYF/IYAF registered instructors.
The AYY is an organization in name and in practice and requires all participating schools to be registered with the Aikido Yoshinkai Foundation. Today, the AYY operates as a coop between the senior instructors who continue to hold yearly workshops and who travel domestically and internationally to spread the teaching of Parker Shihan.