Isaka 【猪坂】4 The Japanese surnames etymology dictionary.
① things . The first element is from stone. Kanagawa-ken Yokosuka-shi In 1253 (the 5th year of the president), from Chiba-ken Kamogawa-shi Kiyosumi through Chiba-ken Minamibousou-shi Tomiura Town Nanasuya Kanagawa-ken rice of Yokosuka-shi landed on the beach Tell the Nichiren of the Kamakura period that Nichiren gave the Ishidori family name because the boatman took over the stone, the land with many rocks. Ishiwata's surname is a word form excluding "door" of Ishitari door name. 石渡戸 reference.
② Korean type . Thing . From the stone. When Hwang Hwang Ok of the Queen of the neighboring Gyeongsangnam-do (Korea) of the Republic of Korea gets married from Ayu (Ayusa (aka Ayuda) (Ayuda) country of the Republic of India Kyouto-fu Kyouto-shi In Kyoto-ku, there is a record of naturalization on June 2, 1984. The real name is Perm. 許 reference.