所有权保留是买卖合同中用以确保货款债权的重要手段。所有权保留的广泛使用,始于缝纫机的分期付款销售。1856年,胜家衣车公司(Singer Sewing Co.)开始在美国进行缝纫机的按月分期付款销售,并于1900年在日本推行。经过十年左右的时间,按月分期在日本缝纫机销售市场中逐渐普遍化。这一研究领域初期的重要文献,包括吉田作穗法官的司法研究报告 Retention of ownership is an important means of securing the payment of claims in sales contracts. The widespread use of proprietary rights begins with the sale of sewing machines by installments. In 1856, Singer Sewing Co. began selling monthly installments of sewing machines in the United States and in Japan in 1900. After a period of about ten years, the monthly staging has gradually become commonplace in the sewing machine market in Japan. Important early literature in this area of ​​research, including Justice Judge Yoshida’s Judicial Research Report