Kondo Katsuyuki during a public demonstration - Tokyo Budokan, 1970
Kondo Katsuyuki was born in Tokyo in 1945. He began his training in Daito-ryu Aikijujutsu under one of Takeda Sokaku's leading students, Hosono Tsunejiro, and in 1961 he received the first instruction from Takeda Tokimune at Hosono's dojo. Later he became student of Yoshida Kotaro, who had been a representative instructor (kyoju dairi) under Takeda Sokaku. In 1964 he created an Aikido club at Chiba Institute of Technology with Yoshida Kotaro as its adviser. In July of 1966 Kondo became a direct student of Takeda Tokimune and from that time he began making periodic visits to Hokkaido to learn directly from the Daito-ryu headmaster. Kondo also invited Tokimune to Tokyo to teach on various occasions. He continued his training under Tokimune for some thirty-two years.
Takeda Tokimune and Kondo Katsuyuki - Abashiri, 1988
In November of 1970 Kondo created his own dojo.
Four years later, in 1974, Takeda Tokimune certified
Kondo as representative instructor of the headmaster
(soke kyoju dairi). In October of 1982, Kondo relocated
his dojo to the third floor of his company's new
building and named it "Shimbukan" (the name of the
dojo was actually bestowed by Omori Sogen, a
renowned Zen monk and Jikishinkage-ryu swordsman).
In 1988, Takeda Tokimune appointed Kondo Katsuyuki,
then the head of all Tokyo Daito-ryu Aikibudo
branches, to be both representative of the headmaster
(soke dairi) and director of the overseas headquarters
(kaigai hombucho) in regard to Daito-ryu Aikibudo.
That same year, Tokimune granted Kondo the menkyo
kaiden (license of full transmission) certificate in
Daito-ryu Aikijujutsu, thus formally passing on the
Main Line Daito-ryu tradition.