IP Stars

Yuasa and Hara

Japan

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Overview

Yuasa and Hara is one of the oldest law firms in Japan. The firm receives recognition from the market for its patent, trade mark, and copyright practices. It has strengths in the life sciences, pharmaceuticals, and specialty chemicals sectors. The firm is supported by closely cooperating teams to deliver a high standard of IP services both in Japan and abroad. 

Notable IP practitioners: Toshiaki Iimura, Tsuyoshi Sueyoshi, Masafumi Takahashi 

Testimonial

2026

"We are highly satisfied with Mr. Tsuyushi Sueyushi of YUASA and HARA's professional capabilities and working style. He not only accurately understands the background and key issues of IP litigation and responds accordingly, but also provides prompt and precise reponses, allowing for thorough review in line with the litigation schedule."

Tsuyoshi Sueyoshi

"He is highly competent in his work, and his reponses are accurate and prompt."

 

2025

"They have many capable attorneys around several fields, [who] provide us with a beneficial approach with multiple aspects."

"They have the skills to strategise from the perspectives of law and science."

Patent

A notable case study demonstrates that the team represented the Japanese affiliate of Atlas Copco in a patent infringement lawsuit initiated by Yokota Industrial concerning pulse tools.