About

Kosuke Hamaguchi is an attorney at Nagashima Ohno & Tsunematsu NY LLP in New York, New York, where he practices in the firm’s general practice group. Admitted to the New York Bar, he advises clients with a broad, practical perspective and a commitment to delivering thoughtful legal support tailored to each client’s needs. Drawing on a multidisciplinary approach, Mr. Hamaguchi is positioned to assist clients navigating a wide range of legal matters in a fast-paced and highly regulated business environment. Based in New York City, Mr. Hamaguchi works with a focus on clear communication, responsiveness, and careful attention to detail. He understands that clients value not only sound legal analysis, but also guidance that is efficient, strategic, and aligned with their broader goals. Whether addressing day-to-day legal concerns or more complex matters requiring careful judgment, he approaches each engagement with professionalism and a client-centered mindset. At Nagashima Ohno & Tsunematsu NY LLP, Mr. Hamaguchi contributes to the firm’s commitment to providing reliable, high-quality counsel to clients with cross-border and domestic needs. His general practice background allows him to support a diverse client base and adapt to evolving legal challenges. Through his work, he strives to provide practical solutions and trusted legal guidance that help clients move forward with confidence.

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