A field administered directly by a ruler and reorganized as a unit of contract farming of the field was called myoden (rice field lots in charge of a nominal holder), a person who was registered as a contract farmer was called fumyo, and a wealthy person who was organized as fumyo was called tato.
ここで公田請作の単位として再編成された公田を名田、請作登録者を負名(ふみょう）と呼び、負名として編成された富豪を田堵(たと）と呼んだ。