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がん免疫治療薬「オプジーボ」の特許使用料を巡る本庶佑氏と小野薬品工業の紛争は、当初の契約で定められた低いロイヤリティ料率が、薬の劇的な成功や他社との訴訟を経て大きな不信感へと発展し、最終的に280億円規模の和解が成立しました。 この事例は、日本の産学連携における交渉力の不足や情報の非対称性といった構造的な課題を浮き彫りにしました。 この「オプジーボ」の特許使用料を巡る紛争からの教訓について、生成AIに深掘りさせました。さらに、結果をNotebookLMでインフォグラフィック、スライド資料にさせました。 なお、生成AIによる調査・分析結果は、公開された情報からだけの分析であり、必ずしも実情を示したものではないこと、誤った情報も含まれていることについてはご留意されたうえで、ご参照ください。 Lessons from the Dispute Over Opdivo’s Patent Royalties The dispute between Dr. Tasuku Honjo and Ono Pharmaceutical over patent royalties for the cancer immunotherapy drug “Opdivo” began with a low royalty rate set in the original agreement. As the drug achieved dramatic commercial success and litigation with other parties unfolded, the situation escalated into deep mistrust, ultimately culminating in a settlement reportedly totaling around ¥28 billion. This case brought into sharp relief structural challenges in Japan’s industry–academia collaboration, including weak negotiating leverage and information asymmetry. I asked generative AI to explore in depth the lessons that can be drawn from this dispute over Opdivo’s patent royalties. I also used NotebookLM to turn the results into an infographic and a slide deck. Please note that the AI’s research and analysis are based solely on publicly available information; they do not necessarily reflect the full reality of the situation, and may include inaccuracies. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document.
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著者萬秀憲 アーカイブ
January 2026
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