We are iX, a Yokohama-based patent and trademark application and registration firm, offering a full range of services in English.

Office Profile

Who we are

We began as "Hyugaji & Associates" in Motomachi, Yokohama in April 2004.
Thanks to the generous support of our clients, we expanded to new offices twice,
first to the Yokohama Kannai area, and then to the Yokohama Minatomirai area in 2013.From the spring of 2023,
we now provide IP services as "iX Patent Law Firm, P.C.".

Our new name, iX Patent Law Firm, P.C., holds deep meaning both in the individual letters “i” and “X” as well as in the combination of the letters “iX”.

The “i” represents several words that are important to our work:

  • intellectual property
  • invention
  • idea
  • imagination
  • innovation
  • intelligence
  • impact
  • information
  • internet
  • industry
  • integrity
  • ingenuity
  • incisive
  • insight
  • international

The “X” also represents several words that symbolize our approach to intellectual property:

  • expertise
  • experience
  • expressive
  • exceptional
  • excellence
  • extraordinary
  • infinity(X)
  • nexus
  • apex

Together, “iX” conveys the essence of what we do: Transforming intellectual property services and assisting in the unlimited development of our clients’ intellectual property activities.

Corporate Profile

Corporation name: iX Patent Law Firm, P.C.
Representative Partner: Masahiko Hyugaji
Location: 15F Nisseki Yokohama Building,
1-1-8 Sakuragi-cho, Naka-ku, Yokohama City,
Kanagawa Prefecture, 231-8966 Japan
Established: December 2022
Services: Patent applications / Utility model applications / Design applications / Trademark applications / Appeals / Foreign applications (Paris Treaty, Patent Cooperation Treaty (PCT)) / Licenses / Expert opinions / Judgments / Other services related to intellectual property
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iX patent law firm, P.C.