<2019-Foreign> Firm Ranking of the number of Japanese granted patents in the Electric communication field in 2019

2020-05-16 2020-04-19

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 2019 (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	758	SHIGA International Patent Office	View
2	541	SUZUYE & SUZUYE Intellectual Property Law	View
3	484	ITOH International Patent Office	View
4	184	RYUKA IP LAW FIRM	View
5	177	SEIWA PATENT & LAW	View
6	158	SHUSAKU・YAMAMOTO	View
7	150	Ohtsuka Patent Office	View
8	143	TANI & ABE, p.c.	View
9	140	Nakamura & Partners	View
10	122	Sonoda & Kobayashi	View
11	101	Fukami Patent Office, P.C.	View
12	96	TMI Associates	View
13	83	KYOWA PATENT AND LAW OFFICE	View
14	67	NII Patent Firm	View
15	64	Okabe International Patent Office	View
16	59	Curiuse	View
17	57	Sakai International Patent Office	View
18	56	KAWAGUTI & PARTNERS	View
19	52	ONDA TECHNO Intl. Patent Attys	View
20	47	YUASA AND HARA	View
21	47	HIBIKI IP LAW FIRM	View
22	42	Aoyama & Partners	View
23	40	Shinjyu GLOBAL IP	View
24	36	Sonderhoff & Einsel	View
25	35	M&S Partners	View
26	34	S. SOGA & CO.	View
27	34	Miyoshi & Miyoshi	View
28	33	Soei Patent & Law Firm	View
29	30	Washida & Associates	View
30	28	SUGIMURA & Partners	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.