愛知製鋼、注目の営業秘密訴訟で敗訴し、120億円を請求される

営業秘密保護法(DTSA)に基づく内部告発者免責の理解
Last Updated: 1月 19, 2026
Updated by: Chris Buntel

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日本の有名な事件では、愛知製鋼の元副社長が、愛知製鋼の磁気センサーの企業秘密を、愛知製鋼のビジネス・パートナーの一人にプレゼンテーション中に漏らしたとして、(裁判と控訴審の両方で)無罪判決を受けた。

EVPは日本の不正競争防止法違反で訴えられた。 同法は、営業秘密は秘密として管理され、事業に有用であり、公然と知られてはならないと定めている。 同法違反は刑事犯罪であり、彼は警察に逮捕された!

裁判でも控訴審でも、裁判所は、主張された営業秘密はあまりにも抽象的で漠然としており、明確に定義されているのではなく、広く一般的な技術的知識を包含していると判断した。

元EVPは現在、愛知製鋼を120億円(約9100万米ドル)で訴えている!

このケースはアメリカやヨーロッパの多くのケースと同様で、裁判所は営業秘密が公知を包含するような曖昧なものでなく、きれいで明確に定義されたものであることを要求している。

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