Kanemaki Jisai and Sasaki Kojirō were both a what of respective fields of study?
Kanemaki Jisai Kanemaki Jisai (鐘巻 自斎 , c.1536 – 1615) was a master of the Chujō-ryū fighting style. He was a student of Toda Seigen and teacher to Itō Ittōsai (possibly also Sasaki Kojirō).
Masahiro Yasuoka Masahiro Yasuoka (安岡正篤 , Yasuoka Masahiro , February 13, 1898 – December 13, 1983) was a Japanese scholar of yangmingism who, through his philosophy, reportedly exerted considerable influence on many Japanese politicians, including postwar prime ministers of Japan. He has been considered a backroom power broker or eminence grise.