www.ajinomoto.co.jp/company/jp/ir/news/news-20251014-2/main/0/link/20251014_J.pdf

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味の素株式会社のグルタミン酸ナトリウム特許訴訟

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https://www.ajinomoto.co.jp/company/jp/ir/news/news-20251014-2/main/0/link/20251014_J.pdf

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This document reports that Ajinomoto Co., Inc. has filed a lawsuit against China's Meihua Group and its affiliates for patent infringement related to the manufacturing method of monosodium glutamate products. The lawsuit was submitted on October 9, 2025, to the Guangdong High People's Court and the Tokyo District Court, seeking an injunction against manufacturing and sales, as well as damages. Ajinomoto emphasizes its commitment to protecting intellectual property rights and advancing research and development as a global leader in monosodium glutamate production.