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).
|Ranking||No.||IP law firm||Website|
|1||30||SHIGA International Patent Office||View|
|2||27||Sakai International Patent Office||View|
|3||18||ITOH International Patent Office||View|
|5||12||SUGIMURA & Partners||View|
|6||12||Fukami Patent Office, P.C.||View|
|7||10||TANI & ABE, p.c.||View|
|8||9||SUZUYE & SUZUYE Intellectual Property Law||View|
|9||9||SEIWA PATENT & LAW||View|
|10||8||Miyoshi & Miyoshi||View|
|11||8||Soei Patent & Law Firm||View|
|12||7||Yamakawa International Patent Office||View|
|13||7||Shobayashi International Patent &Trademark Office||View|
|15||6||NII Patent Firm||View|
|16||6||In-house patent attorney||－|
|17||6||RYUKA IP LAW FIRM||View|
|18||6||Washida & Associates||View|
|19||5||Nakamura & Partners||View|
|20||5||Asahi Patent Firm||View|
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.