Our top-ranked experts who draw on their far-reaching knowledge of Japanese and overseas IP laws deftly ensure best acquisition of patent rights for overseas clients.


  • Prosecution
  • Appeals against decisions of rejection
  • Post-grant oppositions
  • Trials for invalidation
  • Legal opinions
  • Enforcements
  • Searches

Technical Fields

  • Electronics, Information Technology, Telecommunication
  • Chemistry, Biotechnology, Pharmaceuticals
  • Mechanical Engineering
  • Physics, Optics, Materials



Our dedicated patent attorneys and search specialists in charge of your cases closely collaborate to maximize the usefulness of searches and analyses.


Our highly-skilled technical staff from various backgrounds prepares prompt and accurate document translations such as patent specifications and office actions.  In the examination stage, we provide comprehensive analyses and proposals for responding to office actions that hinge on our in-depth knowledge of Japanese practice and cutting edge technical innovations.  We routinely formulate and propose well-judged strategies for appeals against decisions of rejection to tackle the rejection upon ascertaining the examination statuses of counterpart applications.

Post-Grant Oppositions and Trials for Invalidation

We regularly handle post-grant oppositions and trials for invalidation with our meticulous approach by teaming up with multiple patent attorneys who possess the appropriate technical background.  When a third party’s patent rights may impact our client, we proactively conduct an invalidation search to formulate solid grounds for invalidating or revoking the patent.

Legal Opinions and Litigation

Our competent patent attorneys specializing in the technical area concerned provide solution-focused legal opinions on invalidity, infringement, freedom to operate (FTO), etc. in cooperation with our search division.  Our experienced attorneys-at-law and technically well-versed patent attorneys have significant experience in litigating all types of complex cases to achieve the best outcomes which align with our clients’ goals.

Tailor-Made Services

The information you need is always provided exactly when you need it by our reliable administrative team uniquely specialized in overseas cases.  With our in-house administrative and IT teams, we are able to take all possible measures to manage all due dates and swiftly proceed with the matter.  We are also taking the best means to safeguard IT security.