<2018-All> Firm Ranking of the number of Japanese granted patents in the Electric communication field in 2018

2019-05-11 2019-05-05

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 2018 (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	1401	SHIGA International Patent Office	View
2	1089	ITOH International Patent Office	View
3	871	SUZUYE & SUZUYE Intellectual Property Law	View
4	700	Sakai International Patent Office	View
5	671	Ohtsuka Patent Office	View
6	463	In-house patent attorney	－
7	336	RYUKA IP LAW FIRM	View
8	309	SEIWA PATENT & LAW	View
9	266	HIBIKI IP LAW FIRM	View
10	258	Hazuki International	View
11	257	In-house patent attorney	－
12	246	SHUSAKU・YAMAMOTO	View
13	222	TANI & ABE, p.c.	View
14	188	Fukami Patent Office, P.C.	View
15	180	NII Patent Firm	View
16	178	HARAKENZO WORLD PATENT & TRADEMARK	View
17	172	KOKUBUN INTERNATIONAL PATENTS & TRADEMARKS	View
18	172	Okabe International Patent Office	View
19	167	CHUO INTERNATIONAL PATENT FIRM	View
20	163	Washida & Associates	View
21	159	Miyoshi & Miyoshi	View
22	152	SUGIMURA & Partners	View
23	151	Nishikawa & Associates	View
24	136	ONDA TECHNO Intl. Patent Attys	View
25	131	Nagoya International Patent Firm	View
26	131	Curiuse	View
27	128	Soei Patent & Law Firm	View
28	125	In-house patent attorney	－
29	123	Isono International Patent Office, P. C.	View
30	121	Nakamura & Partners	View
31	120	TMI Associates	View
32	118	TAIYO, NAKAJIMA & KATO	View
33	111	Aoyama & Partners	View
34	101	Sanno Patent Office	View
35	98	KOHNO & KOHNO	View
36	98	TSUTSUI & ASSOCIATES	View
37	96	Osuga & Associates	View
38	96	Patent Attorney's Office Yoshida, Yoshitake and Arita	View
39	94	Asahi Patent Firm	View
40	94	KYOWA PATENT AND LAW OFFICE	View
41	93	Sano Patent Office	View
42	93	Fujimoto International Patent Firm	View
43	93	Furuya International Patent Office	View
44	91	S & S INTERNATIONAL PPC	View
45	90	Ashida & Kimura	View
46	90	Minami Aoyama Patent and Trademark Attorneys	View
47	88	Takaoka IP Law	View
48	87	INFORT PATENT FIRM	View
49	84	Koyo International Patent Firm	View
50	84	Shobayashi International Patent &Trademark Office	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.