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Intellectual property: Independent local firms

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Atsumi & Sakai

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Atsumi & Sakai‘s group advises on both domestic and international contractual matters across the full spectrum of IP, including licensing agreements for patents, trade marks, designs, and copyrights, as well as employee invention regulations. The practice is co-headed by Chie Kasahara, an IP, TMT, and life sciences specialist with extensive experience in patent, regulatory and compliance matters, particularly within the life sciences and tech sectors; and Harukuni Ito who is highly experienced in patent litigation before Japanese courts and proceedings before the JPO, with expertise spanning electronics, automotive, machinery and pharma.
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘The team is not only well-versed in international business transactions, but also has an extensive network of overseas law firms and responds with remarkable speed.'

  • 'The team includes a number of female attorneys and foreign-qualified lawyers, making it notably diverse.'

  • 'Atsumi & Sakai’s team provides highly effective services for international companies that require prompt and informed decision-making.’

  • ‘I entrust virtually all of our matters to Harukuni Ito. He is a highly experienced attorney who has handled international corporate legal matters for over 20 years and consistently provides timely and commercially sound advice.'

  • ‘Each team for the respective project is formed with flexibility and works not only with its professional efforts, but also with friendly and cost-conscious advice.’

  • 'Harukuni Ito is experienced in the healthcare sector and provides us with the most efficient measures that our company may take. This comes from his abilities for deep insight and good communication.’

  • 'This firm’s team is characterised by the fact that experienced lead attorneys with a solid track record work together as a team to support the client.'

  • 'This firm provides outstanding support through excellent teamwork.'

Key clients

  • Mitsubishi Chemical Corporation
  • Shinryo Corporation
  • KYORIN Pharmaceutical Co., Ltd.
  • KAKEN Pharmaceutical Co., Ltd.
  • Otsuka Pharmaceutical Factory, Inc.
  • Cyto-Facto Inc.
  • TOMY Inc.
  • Senju Pharmaceutical Co., Ltd.
  • NICI Corporation
  • PortPort Inc.

Lawyers

Leading partners: Bengoshi

The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Chie Kasahara

Practice head

Chie Kasahara; Harukuni Ito

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