<2017-Foreign> Firm Ranking of the number of Japanese granted patents in the Electric communication field in 2017

2019-01-28 2019-04-28

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 2017 (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	Website
1	736	SUZUYE & SUZUYE Intellectual Property Law	View
2	637	SHIGA International Patent Office	View
3	567	ITOH International Patent Office	View
4	236	SHUSAKU・YAMAMOTO	View
5	212	TANI & ABE, p.c.	View
6	193	SEIWA PATENT & LAW	View
7	149	RYUKA IP LAW FIRM	View
8	146	Nakamura & Partners	View
9	142	Ohtsuka Patent Office	View
10	117	Hazuki International	View
11	89	NII Patent Firm	View
12	87	Curiuse	View
13	84	Okabe International Patent Office	View
14	72	KAWAGUTI & PARTNERS	View
15	72	TMI Associates	View
16	71	Sonoda & Kobayashi	View
17	68	HIBIKI IP LAW FIRM	View
18	68	Aoyama & Partners	View
19	63	ONDA TECHNO Intl. Patent Attys	View
20	62	M&S Partners	View
21	56	Fukami Patent Office, P.C.	View
22	51	Unius Patent Attorneys Office	View
23	49	KYOWA PATENT AND LAW OFFICE	View
24	47	S. SOGA & CO.	View
25	47	Hiraki & Associates	View
26	43	Kyosei International Patent Office	View
27	38	HARAKENZO WORLD PATENT & TRADEMARK	View
28	37	YUASA AND HARA	View
29	34	Washida & Associates	View
30	34	Takahashi Hayashi and Partner Patent Attorneys inc.	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.