Etymology and distribution of 綱井.

Tsunai 【綱井】^{レベル3
About 300}  The Japanese surnames etymology dictionary.

Hiroshima-ken , Oosaka-fu , Ishikawa-ken .

① 信田 There is surname. It was in the Edo period in Nagasaki-ken Nagasaki-shi .

② Ishikawa-ken Kashima-gun Nakanoto-machi Originated from a field called Yoshida's Nobunaga. Tell the Meiji New Last Name by the name of the field.

③ Korea type . Originated as Yonan County, Yellow Sea Road, North Democratic People's Republic of Korea. Add "Yan'an of Yan'an to the field. There is a record of naturalization on Osaka-fu Neyagawa-shi on October 9, 1975. The real name is Rice. 田 Den reference. There is also a car in real surname. 車 Kuruma reference.