In the history of Japanese civil law theory, the position of Mrs. Law lies in adopting a new methodology in her own theory and integrating it with previous knowledge to consolidate and systematize it, thus clarifying her own methodology. In this way, the past civil laws have come together to form a huge reservoir, which provides the source for future development, that is, my wife has adopted a new trend and integrated various viewpoints at the same time, thus accomplishing two tasks in one fell swoop.

As my wife's university professor, I have two major tasks, one is to sort out the handouts that run through all civil laws and use them in textbooks, and the other is to focus on one subject for lifelong research, both of which have great achievements. For the former, on the one hand, we should synthesize the theories of Yukio Hatoyama, Sui Jizhong and Isutaro Mohong, on the other hand, we should learn from the theories of advanced scholars, do what we should do and correctly interpret the existing laws. Each system has carried out comparative law, evolution research, precedent research (this brand-new viewpoint was learned from Itsutaro at the end of the year) and social function research of laws and regulations (this brand-new viewpoint came from animal husbandry), trying to establish a unified interpretation theory that is not contradictory in the current legal system. This is a three-dimensional synthesis from three angles.

The center of the textbook written by my wife runs through the whole civil law, which is my wife's most famous civil law lecture. This was originally a teaching material as a handout, and it was organized into more than 300 pages per volume. Property Law was first published in 1932. Before the war, it was published in four volumes as General Theory of Creditor's Rights. After the war, it was published in four volumes of unjust enrichment, and the pre-war version was also published. These books are not only teaching materials for university handouts, but also detailed and systematic books. Today, many parts of the book have been strongly criticized, but it can be said that it has had an overwhelming impact on practitioners, and it is undoubtedly an important reference book for students who want to know more information. The characteristics that can be cited are: adopting the results of case studies, citing a large number of cases, the conclusion of hermeneutics is balanced in common sense (similar to spike products), and the "theoretical composition" is very clear (inherited from Yukio Hatoyama). At the same time, on the basis of "lifelong research", the system and regulations are systematized from the perspective of social function, and other laws are integrated and enriched. Especially the uniqueness that is hard to see in other textbooks can not be ignored. To this end, in class, you can often hear his lectures on the social function of law. In addition, the influence of the new concept of France and Germany introduced into Japan by Konoha English Institute on the principle of good faith and the socialization of law can not be ignored. Although the following torts were not completed in the Civil Law Lecture Notes, after that, the related torts were included in the Complete Works of New Law (1940), the law of kinship was included in the Complete Works of Law (196 1), and the interpretation of inheritance law was also co-authored with Li Shifang.

The theme of my wife's "lifelong research" is "the change of private law with the development of capitalism", and the most famous one is the immortal masterpiece in the history of Japanese civil law, that is, the superior position of creditor's rights in modern law (1927 ~ 1929 "Records of the Law" serialized, with a special edition 1953. The research in this direction also includes the legislation of economic reconstruction and control (1948) and the complete works of laws (1974). Previous papers quoted the works of many economic historians headed by Karl Rehn, Lester and Max Weber. These titles show the meaningful conclusions contained in mountain areas, raise many questions and provide rich and important insights on the above topics. Although it has not been finalized, all parts are broad papers.

As a methodology, there is a paper published after studying abroad, A Probe into the Methods of Private Law. Based on the central position of "the most extensive judgment", my wife discussed in detail "the ideal that law should realize", "the study of social phenomena centered on law" and "the technology of legal composition" from three aspects. From this, he laid the foundation of broad legal methodology for civil law, which can also be said to be an unavoidable place for future methodology.

Of course, my wife has not studied all the topics of civil law. As one of the main tasks of young scholars after the war, she is pursuing the shortcomings of my wife's theory. For example, in my wife's "On Abstraction", as the study of evolution, the origin of Japanese civil law, the source of three drafters of the code investigation meeting, the old civil law (drafted by Pauasonat), the French civil law and so on. As a living law, explore the practice of enterprises, the developing Japanese legal consciousness and legal concept; As for the re-discussion of the significance and value of theoretical components in law, my wife's concern is relatively weak. In addition, there are some discussions about the ideological background of important systems, and so on. In a word, there are still many important problems to be solved.

In addition to the above works, my wife also has three volumes of case studies (civil law case analysis I-1 1), papers and lectures (civil law research11volume * *14) and lectures by famous scholars. In his later years, he published ten volumes of Introduction to Civil Law (in the case) by oral recording. The final handout makes civil law easy to understand and easier to understand than the civil law handout. In addition, many articles were published with The Jurist as the center, and then compiled into three volumes of essays. It contains many inspirations from scholars and students on how to live.