The following table shows the ranking of Japanese IP law firm. The ranking is based on the following conditions.

  • Technical field:  IoT (IoT technology having broad facet classification: safe driving support system, study support system, smart kitchen devices, etc.)
  • Status:  All (i.e., Japanese patent applications in 2016 (application date)).
  • First country:  All (i.e., patent applications with claiming priority of a Japanese application or a foreign application, or without claiming priority).
  • Count:  The number of Japanese patent applications handled by each Japanese IP law firm was counted (applicants of the patent applications are represented by each Japanese IP law firm or its members).
RankingNo.IP law firmWebsite
130SHIGA International Patent Office View
227Sakai International Patent Office View
318ITOH International Patent Office View
413TMI Associates View
512SUGIMURA & Partners View
612Fukami Patent Office, P.C. View
710TANI & ABE, p.c. View
89SUZUYE & SUZUYE Intellectual Property Law View
108Miyoshi & Miyoshi View
118Soei Patent & Law Firm View
127Yamakawa International Patent Office View
137Shobayashi International Patent &Trademark Office View
156NII Patent Firm View
166In-house patent attorney
186Washida & Associates View
195Nakamura & Partners View
205Asahi Patent Firm View
In preparing the table, a patent search expert conducted a patent search using patent classification and keywords (as necessary) in order to extract patents in specific technical field (here, IoT field).
In the patent search, it was confirmed that a high-accuracy population (i.e., a population not including non-relevant fields) of patents was obtained. Subsequently, the population was used to create the table.

By entering the Firm name or Attorney name in the "Legal Representative Name" column of Patentscope (search system of WIPO), you can find the patent information handled by each Firm.

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