Abe, Ikubo & Katayama

IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

Silver - Firms: prosecution

Highly-recommended - Firms: transactions

Gold - Firms: litigation

“Flexible, proactive and agile, Abe, Ikubo & Katayama has a diverse talent pool and is able to handle a wide range of matters.” “The firm’s experts are very competent, responsive and thorough in their analysis. Their expertise in and understanding of the pharmaceutical field is very strong.” “Even in unfavourable situations, they always endeavour to provide solutions in the best interest of clients.” “They are brisk, faithful and reliable.” Abe, Ikubo & Katayama strikes the sweet spot between contentious capabilities and prosecution prowess. Leading the charge is living legend Eiji Katayama, who tackles any IP topic but has a particular fondness for cases involving the pharmaceutical industry. “Mr Katayama is one of the best IP lawyers in Japan.” Qualified in both Japan and New York, litigator Makoto Hattori is a rising star at the practice. Lately, he successfully obtained the second-highest damages award in the history of Japanese patent infringement for a leading technology multinational. “Mr Hattori is an all-rounder who approaches each task with kindness, diligence and professionalism. He is open-minded and eager to enhance his understanding of a foreign culture.” Hattori also receives hearty praise from peers: “He is a future leader,” one of them comments. Similarly dual-qualified in Japan and New York, partner Mami Hino draws on her experience as a registered pharmacist to protect patents for major companies in the field from generic drug companies’ infringement and appeals at the IP High Court. “Mami Hino has rich experience and up-to-date knowledge. She is always diligent and determined in her work.” IP litigator Junichi Kitahara is known for his great track record in disputes across diverse industries. Lately, he successfully represented a global technology leader in an invalidation trial. A new addition to the IAM Patent 1000, Shimako Kato leverages her experience as a former JPO examiner and technical adviser at the IP division of the Tokyo District Court to deliver flawless litigation results. “She provides excellent suggestions based on her vast experience.” Meanwhile, former chief patent counsel for Pfizer and Dow Japan, Hiroshi Kobayashi has headed the AIK’s prosecution division since its establishment 20 years ago. His experience in life sciences has earned the outfit several major clients in the field.

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