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Hugh H. Matsubayashi

Fax +1.206.623.7022
Hugh Matsubayashi is a partner in the firm’s Seattle office, focusing on patent prosecution and intellectual property transactions.

Mr. Matsubayashi has experience protecting his clients’ intellectual property across a range of technologies, including artificial intelligence, machine learning, computer hardware and software, medical devices, and semiconductor manufacturing. He has represented clients in an array of matters, including prosecution of domestic and international patent applications, intellectual property licensing, and intellectual property due diligence.

Having served as in-house counsel at a venture-funded medical device start-up as well as a Fortune 500 information technology company, Mr. Matsubayashi understands the importance of tailoring each client’s intellectual property strategy to its practical business needs.

Mr. Matsubayashi is a member of the firmwide Diversity Committee and a co-chairperson for the Seattle office Diversity Committee.

Professional Background

Mr. Matsubayashi has previously worked as a partner at MacPherson Kwok Chen & Heid LLP (now Haynes & Boone LLP) and as an associate at Morrison & Foerster LLP. In addition to his years in private practice, Mr. Matsubayashi has served in a variety of in-house roles. Prior to joining K&L Gates, Mr. Matsubayashi was the 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 the Network Storage division of Sun Microsystems, Inc. He has also worked at the Research Center for Advanced Science and Technology at the University of Tokyo.

Professional/Civic Activities

  • Asian Bar Association of Washington, Vice President, 2017; Board of Directors, 2013–present
  • Ryther, Board of Trustees, 2013–2017
  • Initiative for Diversity Governing Council, 2013–2014
  • University of Washington Educational Outreach, Advisory Board, 2009–present
  • Asian Law Alliance, Board of Directors, 2006–2008
  • Asian Pacific Bar Association of Silicon Valley, Board of Directors, 2000
  • Patent prosecution counsel managing a portfolio of hundreds of patents for a Fortune 100 technology company
  • Patent prosecution counsel for start-up clients needing assistance developing their initial intellectual property strategies
  • Represented Japanese client in intellectual property licensing negotiations with a semiconductor manufacturing company
  • Represented Japanese client in intellectual property licensing negotiations with a Chinese energy storage company
  • Represented public client in bid to acquire assets of a technology company through a Section 363 bankruptcy sale auction
  • Represented medical device start-up in drafting and negotiating numerous university research agreements
  • Represented medical device start-up in drafting and negotiating outbound technology license agreements
  • Represented semiconductor manufacturing company in Section 337 action before the International Trade Commission, where all patents at issue found not infringed, invalid, and failing to meet domestic industry requirement
  • Represented underwriter in initial public offering in performing intellectual property due diligence review
  • Represented computer hardware company in performing intellectual property due diligence support for client’s initial public offering
  • Represented biotechnology equipment manufacturer in preparation for interference proceedings