Introduction and fee schedule of SK Intellectual Property Law Firm
SK Intellectual Property Law Firm provides advice and legal services in a broad range of intellectual property matters in Japan, including patent, trademark, industrial design and utility model. Firm information is as follows.
Electric communication

<2021-Foreign>  Firm Ranking of the number of Japanese granted patents in the Electric communication field in 2021

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

  • Technical field:  Electric communication (smartphone, cell phone, wireless network, video streaming, videoconference device, user authentication system, etc.)
  • Status:  Japanese granted patents in 2021 (registration date).
  • First country:  Foreign (i.e., patents with claiming priority of a foreign application, or patents based on PCT application whose receiving office is not Japan Patent Office without claiming any priority).
  • Count:  The number of patents handled by each Japanese IP law firm was counted (if the applicant is represented by a firm member (attorney), it was counted as being handled by the firm).
Ranking No. IP law firm Web
1 711 SHIGA International Patent Office View
2 435 ITOH International Patent Office View
3 284 SUZUYE & SUZUYE Intellectual Property Law View
4 228 SEIWA PATENT & LAW View
5 215 KYOWA PATENT AND LAW OFFICE View
6 191 Ohtsuka Patent Office View
7 167 Sonoda & Kobayashi View
8 165 SHUSAKU・YAMAMOTO View
9 153 RYUKA IP LAW FIRM View
10 149 TANI & ABE, p.c. View
11 142 Nakamura & Partners View
12 109 TMI Associates View
13 101 Fukami Patent Office, P.C. View
14 79 NII Patent Firm View
15 69 Washida & Associates View
16 55 OHNO & PARTNERS View
17 53 YUASA AND HARA View
18 50 Sakai International Patent Office View
19 46 Aoyama & Partners View
20 45 Okabe International Patent Office View
21 43 HIBIKI IP LAW FIRM View
22 38 ONDA TECHNO Intl. Patent Attys View
23 34 Curiuse View
24 34 SUGIMURA & Partners View
25 34 S. SOGA & CO. View
26 28 TAIYO, NAKAJIMA & KATO View
27 27 Shinjyu GLOBAL IP View
28 27 World IP Law View
29 27 In-house patent attorney －
30 27 Sonderhoff & Einsel View
31 27 Okada Patent Firm View
32 26 Asamura Patent Office, p.c. View
33 26 HARAKENZO WORLD PATENT & TRADEMARK View
34 25 TRY International IP LAW FIRM View
35 23 Hiraki & Associates View
36 22 Kai-U Patent Law Firm View
37 22 Miyoshi & Miyoshi View
38 21 Unius Patent Attorneys Office View
39 21 Shin-Ei Patent Firm, P.C. View
40 21 INFORT PATENT FIRM View
41 20 Okuyama & Sasajima View
42 20 KAWAGUTI & PARTNERS View
43 19 Soei Patent & Law Firm View
44 19 Kyosei International Patent Office View
45 18 PRIMEWORKS IP Attorneys View
46 17 HIROE AND ASSOCIATES, patent professional corporation View
47 16 Yamakawa International Patent Office View
48 16 SANSUI PATENT FIRM View
49 15 ZHENGLIN N/A
50 15 Katayose Patent 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, Electric communication 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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