Definition
An issue actually litigated, determined and essential to a judgment binds later suits.
📌 At a glance
- Source
- Restatement § 27
- Non-mutual use
- *Parklane Hosiery* (1979)
Korea and Japan
Res judicata there covers only the operative judgment. Prof. Shindo proposed *sotenko* in the 1960s, but Japan’s Supreme Court rejected it in 1969; Korea’s Supreme Court treats prior findings as strong evidence instead.
A doctrine famous in textbooks yet unused in Asian courtrooms. It survives as a lens for comparing res judicata, good faith and evidentiary weight.
Frequently asked questions
- Difference from claim preclusion?
- Claim preclusion bars the claim; issue preclusion bars specific issues.
References
- 新堂幸司『新民事訴訟法（第6版）』弘文堂, 2019.
- 最高裁判所 昭和44年6月24日 第三小法廷判決（判例時報569号48頁）.
- Restatement (Second) of Judgments § 27 (American Law Institute, 1982).
- Parklane Hosiery Co. v. Shore, 439 U.S. 322 (1979).
- 대한민국 「민사소송법」 제216조, 제218조.
- 最高人民法院关于适用《中华人民共和国民事诉讼法》的解释 第九十三条.