野中 郁次郎（のなか いくじろう、1935–2025）は、日本の経営学者。一橋大学名誉教授。東京都に生まれ、早稲田大学政治経済学部を卒業後、富士電機製造に入社。カリフォルニア大学バークレー校で経営学の博士号を取得し、南山大学、防衛大学校、一橋大学などで研究・教育に携わった。個人の経験や直感に根ざす「暗黙知」と、言葉や数字で共有できる「形式知」の相互作用に注目し、組織が新しい知識を生み出す過程を説明する知識創造理論を構築した。竹内弘高との共著『知識創造企業』（原題 “The Knowledge-Creating Company”）では、日本企業の商品開発などを分析し、経験を共有し、それを言語化し、既存の知識と組み合わせ、実践を通じて身につける「SECIモデル」を提示。現場の知恵が組織全体の革新につながる仕組みと、それを支える管理職や組織構造の役割を論じた。共著『失敗の本質』では、ノモンハン事件から沖縄戦までの六つの作戦を組織論の観点から検証し、目的の曖昧さや過去の成功体験への過剰適応が、判断や学習を妨げる問題を考察した。2002年に紫綬褒章、2013年にThinkers50の生涯業績賞を受賞。企業の革新と軍事組織の失敗の双方を研究し、人が経験から学び、対話を通じて知識を共有し、組織を変えていく条件を探究した。
Ikujiro Nonaka (1935–2025) was a Japanese management scholar and professor emeritus at Hitotsubashi University. Born in Tokyo, he graduated from Waseda University and worked at Fuji Electric before earning a PhD in business administration at the University of California, Berkeley. He subsequently taught at Nanzan University, the National Defense Academy of Japan, and Hitotsubashi University. His research developed a theory of organizational knowledge creation centered on the interaction between tacit knowledge, rooted in experience and intuition, and explicit knowledge, which can be expressed and shared through words and numbers. In The Knowledge-Creating Company: How Japanese Companies Create the Dynamics of Innovation, coauthored with Hirotaka Takeuchi, he examined how companies turn employees’ practical insights into new products, processes, and services. The book presented the SECI model—socialization, externalization, combination, and internalization—to explain how knowledge develops through shared experience, articulation, synthesis, and practice. It also explored how managers and organizational structures support this process. In the coauthored Japanese book Shippai no Honshitsu, whose title means “The Essence of Failure,” he investigated six Japanese military operations, from Nomonhan to Okinawa, through organizational analysis. The study examined how unclear objectives and excessive attachment to past successes can obstruct sound judgment, adaptation, and learning. Nonaka received Japan’s Medal with Purple Ribbon in 2002 and the Thinkers50 Lifetime Achievement Award in 2013. Across his studies of corporate innovation and military failure, he investigated how people learn from experience, develop knowledge together, and change the organizations in which they work.
