Anderson Mori & Tomotsune has a broad-ranging intellectual property practice, with extensive expertise in patent, trademark, copyright and trade secret law, as well as in new issues arising in the digital domain.

We are experienced in the provision of intellectual property advice in both IP-specific matters as well as part of broader transactions, and we regularly advise clients in regard to domain name matters, security interests in intellectual property, licensing and franchising issues and associated aspects of IP-related commercial law, as well as other technology-related legal issues.

We have extensive experience representing clients in intellectual property infringement litigation including damages claims, injunction proceedings, interlocutory injunctions and other provisional remedies for patents, trademarks, copyrights and publicity rights. We are also widely recognized for our experience in litigation under the Unfair Competition Prevention Act and in successfully challenging decisions of the Patent Office.

Other aspects of our practice include representing and assisting our clients in arbitration and other dispute resolution processes related to intellectual property disputes; copyright protection for film, music and other entertainment industry media; trademark, service mark, design and copyright protection; trademark applications and extensions; trade secret matters; multimedia and internet issues; and related antitrust matters.

We also work closely with other specialist groups within Anderson Mori & Tomotsune to provide advice on intellectual property issues within corporate transactions. Our firm is particularly highly regarded for its expertise in antitrust issues involving intellectual property rights.

• Counsel for a Japanese subsidiary of a US healthcare company before the Tokyo District Court and the Patent Office, in relation to litigation involving a medical device patent commenced by another US healthcare company. As the dispute is currently also pending in the US, we coordinate our work in Japan closely with the US headquarters of our client as well as with its US attorneys.
• Counsel for a leading Japanese electronics company in a suit where its former employee seeks compensation for an invention transferred to the company under Article 35 of the Japanese Patent Act.
• Counsel for a worldwide pharmaceutical company in a suit to invalidate a competitor's patent in parallel with the EPO proceeding.
• Counsel for a large US sporting goods company in a patent infringement suit relating to baseball bats.
• Counsel for a large Japanese company in patent infringement litigation relating to digital cameras.
• Counsel for a large German company in patent infringement litigation relating to bioinformatics software.
• Counsel for a large Japanese company in patent infringement litigation relating to a clinical test kit.
• Counsel for a large Chinese company in patent infringement litigation relating to lithium ion rechargeable batteries.
• Counsel for large US companies in litigation to revoke a decision of the Japan Patent Office in relation to patents on genetically-modified plant seeds, printing machines, mobile phone technology, etc.
• Counsel for large US companies in trademark infringement litigation relating to famous trademarks for beer, life insurance, etc.
• Counsel for the Japanese recording industry in copyright infringement litigation against a P2P file exchange service provider.
• Counsel for a Japanese company in know-how infringement litigation relating to a device for manufacturing semiconductors.
• Counsel for a US corporation that obtained a favorable judgment from the Tokyo High Court this summer that overturned the decision of the Patent Office in relation to the validity of a patent regarding mobile phone technology.
• Counsel for a US corporation whose license for a patented product is threatened by an ownership dispute regarding that patent.
• Counsel for numerous stationery manufacturers, at trial before the Patent Office, successfully obtaining a decision to invalidate a patent.
• Counsel for a large Japanese manufacturing company in a case filed by a Japanese subsidiary of a US corporation, which alleged patent infringement in relation to apparatus for a clinical laboratory. In that matter, the plaintiff withdrew and settled the case just before the scheduled judgment date. As the case was derived from a related patent dispute arising in the US, we coordinated closely with US attorneys to resolve the matter.
• Counsel for a large Japanese manufacturing company in proceedings and litigation in the United States against a US corporation in relation to a water jet vehicle patent infringement.
• Counsel for a large Japanese manufacturing company in a case filed by another large Japanese company, which alleged patent infringement in relation to cemented carbide. The Tokyo High Court denied the patent infringement claim and rejected the appeal.
• Counsel for a large Japanese car manufacturer in relation to imitation cars that were about to be launched by a Chinese company in the Chinese and European markets. We, in coordination with European firms, successfully prevented those cars from being imported into the European market.