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-JP>  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:  Japan (i.e., (i) patents with claiming priority of a Japanese application, (ii) patents based on Japanese domestic application, or (iii) patents based on PCT application whose receiving office is 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, it was counted as being handled by the firm).
Ranking No. IP law firm Web
1 650 Sakai International Patent Office View
2 507 SHIGA International Patent Office View
3 420 ITOH International Patent Office View
4 417 Ohtsuka Patent Office View
5 331 In-house patent attorney －
6 271 HIBIKI IP LAW FIRM View
7 208 S & S INTERNATIONAL PPC View
8 197 Nishikawa & Associates View
9 173 In-house patent attorney －
10 159 TAIYO, NAKAJIMA & KATO View
11 153 NII Patent Firm View
12 136 SUZUYE & SUZUYE Intellectual Property Law View
13 133 Washida & Associates View
14 133 SOCO IP LAW FIRM View
15 123 KOKUBUN INTERNATIONAL PATENTS & TRADEMARKS View
16 116 INFORT PATENT FIRM View
17 116 Fukami Patent Office, P.C. View
18 106 TSUTSUI & ASSOCIATES View
19 105 CHUO INTERNATIONAL PATENT FIRM View
20 96 TANI & ABE, p.c. View
21 95 DAIDO Patent Attorneys P.C. View
22 95 Miyoshi & Miyoshi View
23 89 In-house patent attorney －
24 83 Asahi Patent Firm View
25 83 YKI Intellectual Property Attorneys View
26 82 HARAKENZO WORLD PATENT & TRADEMARK View
27 81 Eikoh Patent Firm, P.C. View
28 81 Isono International Patent Office, P. C. View
29 80 IP Firm SHUWA View
30 79 Soei Patent & Law Firm View
31 77 Kai-U Patent Law Firm View
32 77 PRIMEWORKS IP Attorneys View
33 74 RYUKA IP LAW FIRM View
34 70 SUGIMURA & Partners View
35 70 Okabe International Patent Office View
36 70 Fujimoto International Patent Firm View
37 67 Koyo International Patent Firm View
38 67 Serio Patent & Trademark Attorneys View
39 65 Ashida & Kimura View
40 65 Nagoya International Patent Firm View
41 64 Takaoka IP Law View
42 63 In-house patent attorney －
43 61 Sano Patent Office View
44 57 KYOWA PATENT AND LAW OFFICE View
45 56 Patent Attorney's Office Yoshida, Yoshitake and Arita View
46 53 Aoyama & Partners View
47 52 OHCHI INTERNATIONAL IP View
48 52 Seiryo Intellectual Property Corp. View
49 52 Shobayashi International Patent &Trademark Office View
50 51 SEIWA PATENT & LAW 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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