Yasuhide Ono’s legal practice focuses on patent procurement, legal opinion, and client counseling.

Mr. Ono has a total of more than twenty-five years of experience in the procurement of U.S., Japanese, and European patents before joining NKL Law, of which about twenty years as an in-house attorney at Panasonic, formerly known as Matsushita Electric Industrial Co., Ltd.  Mr. Ono is both a registered U.S. patent attorney and a registered Japanese patent attorney (inactive).  He is also proficient in the German language.

Mr. Ono excels in a range of patent-related works, including patent prosecution in Japan, the U.S., and Germany, patent enforcement, and education of IP professionals in IP-related seminars and conferences. He is well versed in electromechanical art, including video encoder/decoder, mobile phone, semiconductor device and process, DTV, TV panels (including LCD and PDP), battery, fuel cell, medical devices, optical devices, home appliances, robotics, mechanics and business methods.

Mr. Ono is a prolific author of IP-related publications.  He frequently gives lectures on Japanese and U.S. patent law topics, including specification/claim drafting, claim construction, subject matter eligibility, means-plus-function claims,  novelty and obviousness, patent infringement, defenses, as well as damages and remedies.


  • Patent Prosecution
  • Legal Opinion

Bar Admissions

  • New York
  • U.S. Patent and Trademark Office


  • LL.M., New York University, School of Law
  • LL.B., Meiji University, School of Law
  • M.S. in Pure and Applied Physics, Waseda University, School of Science and Engineering
  • B.S. in Applied Physics, Waseda University, School of Science and Engineering


  • English
  • Japanese
  • German (Limited Working Proficiency)

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