<2017-All> 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: All (i.e., patents with claiming priority of a Japanese application or a foreign application, or without claiming 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	1207	SHIGA International Patent Office	View
2	1032	ITOH International Patent Office	View
3	887	SUZUYE & SUZUYE Intellectual Property Law	View
4	753	Sakai International Patent Office	View
5	652	Ohtsuka Patent Office	View
6	426	In-house patent attorney	－
7	294	TANI & ABE, p.c.	View
8	291	SEIWA PATENT & LAW	View
9	242	HIBIKI IP LAW FIRM	View
10	239	Miyoshi & Miyoshi	View
11	238	RYUKA IP LAW FIRM	View
12	236	SHUSAKU・YAMAMOTO	View
13	224	Hazuki International	View
14	204	In-house patent attorney	－
15	199	SUGIMURA & Partners	View
16	182	NII Patent Firm	View
17	169	Fukami Patent Office, P.C.	View
18	163	In-house patent attorney	－
19	163	HARAKENZO WORLD PATENT & TRADEMARK	View
20	162	Nakamura & Partners	View
21	158	Curiuse	View
22	152	Washida & Associates	View
23	150	TAIYO, NAKAJIMA & KATO	View
24	145	Okabe International Patent Office	View
25	145	Aoyama & Partners	View
26	138	PRIMEWORKS IP Attorneys	View
27	134	CHUO INTERNATIONAL PATENT FIRM	View
28	133	KOKUBUN INTERNATIONAL PATENTS & TRADEMARKS	View
29	132	Osuga & Associates	View
30	125	Nishikawa & Associates	View
31	117	TMI Associates	View
32	114	Soei Patent & Law Firm	View
33	109	INFORT PATENT FIRM	View
34	106	Eikoh Patent Firm, P.C.	View
35	105	ONDA TECHNO Intl. Patent Attys	View
36	103	In-house patent attorney	－
37	100	Isono International Patent Office, P. C.	View
38	99	Sanno Patent Office	View
39	98	Ashida & Kimura	View
40	98	Patent Attorney's Office Yoshida, Yoshitake and Arita	View
41	93	Koyo International Patent Firm	View
42	93	Nagoya International Patent Firm	View
43	88	KYOWA PATENT AND LAW OFFICE	View
44	86	Shobayashi International Patent &Trademark Office	View
45	85	ITOH-SHIN PATENT OFFICE	View
46	84	Fujimoto International Patent Firm	View
47	83	Sano Patent Office	View
48	81	WAKABAYASHI PATENT AGENCY	View
49	79	S. SOGA & CO.	View
50	76	Kai-U Patent Law Firm	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.