Abe, Ikubo & Katayama's practice is well-regarded for its strong capabilities in both IP litigation and procurement, advising clients across the telecoms, electronics, and pharma industries. The practice is co-led by Eiji Katayama whose expertise spans a wide range of corporate and international matters, with a particular emphasis on IP and bankruptcy. Alongside Katayama at the helm is Hiroshi Kobayashi who focuses on patent-related issues, including infringement, licensing and oppositions, particularly within the pharma, biotech, polymer, and agrochemical sectors. Junichi Kitahara specialises in IP-related litigation, representing clients in a variety of domestic and cross-border commercial disputes, with a focus on patent cases. Mami Hino is also a key name.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Sector knowledge
Testimonials
Collated independently by Legal 500 research team.
‘What distinguishes this team is their speed of response and exceptionally precise and practical legal analysis. The team is composed of professionals with deep technical expertise across a wide range of fields, enabling them to deliver comprehensive and highly specialised IP services. We find their service quality consistently excellent across all aspects of their practice.'
‘Makoto Hattori possesses outstanding expertise in IP law and is highly respected within the firm, particularly by junior colleagues. He has an ongoing commitment to thought leadership and education in the field.'
'Shimako Kato has a strong background in patent prosecution. She also brings excellent foreign language skills, which has allowed her to maintain strong working relationships with many international clients. Her combined technical knowledge and communication abilities make her a valuable asset.’
‘This practice is distinguished by its strong focus on patent litigation, with multiple experienced partners who specialise in this area. They are supported by a team of highly capable associates who consistently deliver high-quality work.’
‘This is a highly experienced and trustworthy team that respects the opinions of its clients and provides litigation support accordingly.'
'One of the key strengths of the practice is the close collaboration between attorneys and patent attorneys, enabling comprehensive and strategic support tailored to each case.'
Key clients
- Daio Paper Corporation
- Cygames
- Pocketpair, Inc.
- Nippon Shinyaku
- Daisho Japan
Lawyers
Leading partners: Benrishi
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Leading partners: Bengoshi
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Eiji Katayama; Hiroshi Kobayashi
Other key lawyers
Junichi Kitahara; Tomohiro Yoneyama; Shimako Kato; Makoto Hattori; Mami Hino