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Hugh H. Matsubayashi

Hugh Matsubayashi is a partner who focuses his practice on patent prosecution, intellectual property portfolio management, and technology transactions. He advises technology companies on developing and implementing intellectual property strategies aligned with their business objectives, including the preparation and prosecution of US and international patent applications, portfolio development and management, intellectual property licensing, and intellectual property due diligence.

Hugh represents clients across a range of technologies, including artificial intelligence, computer hardware and software, medical devices, telecommunications, and semiconductor manufacturing. He advises startup, middle-market, and global technology companies on patent portfolio development and management, and regularly works with inventors and in-house legal teams to identify, protect, and strategically develop patent assets.

Having served as vice president of legal affairs at a venture-funded medical device startup and as senior patent counsel at a Fortune 200 enterprise technology company, Hugh brings an in-house perspective to his practice. He understands the importance of delivering practical intellectual property advice tailored to each client’s technology, commercial priorities, and internal processes.

Hugh is a member of the firmwide Opportunity and Inclusion Committee and serves as the chairperson of the Seattle office Opportunity and Inclusion Committee.

Hugh previously practiced as a partner at a Silicon Valley intellectual property law firm and as an associate at an international law firm. In addition to his private-practice experience, Hugh has served in several in-house legal roles. Before joining K&L Gates, Hugh was vice president of legal affairs and intellectual property at a venture-funded medical device company in Seattle. Earlier in his career, he served as senior patent counsel for an enterprise hardware, software, and network technology company. Hugh also worked as a visiting researcher at the University of Tokyo’s Research Center for Advanced Science and Technology.

  • Recognized by The Best Lawyers in America® for Patent Law in Seattle, Washington, 2024-2026
  • Asian Bar Association of Washington, Vice President, 2017, Board of Directors, 2013–2025
  • Asian Bar Association Student Scholarship Foundation, Board of Directors, 2022–2024
  • Ryther, Board of Trustees, 2013–2017
  • Initiative for Diversity, Governing Council, 2013–2014
  • Asian Law Alliance, Board of Directors, 2006–2008
  • Asian Pacific Bar Association of Silicon Valley, Board of Directors, 2000
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