Editing Hapkido (section)

=== Chang (Jang) In-mok  ===
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[[File:Dr. Chang In Mok.png|thumb|Grand Patriarch Dr. Chang In-mok (1960)]]

Grand Patriarch Jang In-mok (born 15 August 1912) of Daegu, who also trained under Takeda Sokaku's lineage, returned to Daegu in 1945 like Grand Patriarch Choi Yong-sul. He was a doctor of Oriental medicine and taught aikijitsu as hapkido. Jang learned Dae Dong Ryu Yu Sul Hapkido from his teachers Masuta Yutaka and [[Takeda Sōkaku|Takeda Sokaku]] in Japan. Choi Yong-sool trained many students but Jang only trained a few. Jang's notable students included Han-young Choi (Chun Ki Do), Jang Seeung-ho, Song Joon-hwi, Hu Il-wong (teacher of Peter and Joseph Kim) and Song Il-hun. He introduced the Dae Don Ryu Sul system to Korea in 1960. He first learned martial arts in Japan in September 1928 with Daito-ryu Jujitsu and received his certificate in 1935 from Yutaka, a student of Sodaku.