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

2020-05-18 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: 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	1331	SHIGA International Patent Office	View
2	884	ITOH International Patent Office	View
3	731	Ohtsuka Patent Office	View
4	688	Sakai International Patent Office	View
5	682	SUZUYE & SUZUYE Intellectual Property Law	View
6	519	In-house patent attorney	－
7	295	HIBIKI IP LAW FIRM	View
8	292	In-house patent attorney	－
9	287	RYUKA IP LAW FIRM	View
10	244	TANI & ABE, p.c.	View
11	237	SEIWA PATENT & LAW	View
12	210	NII Patent Firm	View
13	197	Fukami Patent Office, P.C.	View
14	183	S & S INTERNATIONAL PPC	View
15	180	Nishikawa & Associates	View
16	173	HARAKENZO WORLD PATENT & TRADEMARK	View
17	161	SHUSAKU・YAMAMOTO	View
18	158	CHUO INTERNATIONAL PATENT FIRM	View
19	155	TMI Associates	View
20	152	Nakamura & Partners	View
21	149	KOKUBUN INTERNATIONAL PATENTS & TRADEMARKS	View
22	148	Okabe International Patent Office	View
23	146	Miyoshi & Miyoshi	View
24	144	KYOWA PATENT AND LAW OFFICE	View
25	141	TAIYO, NAKAJIMA & KATO	View
26	128	SUGIMURA & Partners	View
27	126	Isono International Patent Office, P. C.	View
28	125	Sonoda & Kobayashi	View
29	121	Curiuse	View
30	117	Nagoya International Patent Firm	View
31	117	Washida & Associates	View
32	117	Fujimoto International Patent Firm	View
33	113	ONDA TECHNO Intl. Patent Attys	View
34	104	In-house patent attorney	－
35	102	YKI Intellectual Property Attorneys	View
36	102	Soei Patent & Law Firm	View
37	98	IP Firm SHUWA	View
38	97	PRIMEWORKS IP Attorneys	View
39	96	Osuga & Associates	View
40	94	DAIDO Patent Attorneys P.C.	View
41	93	Patent Attorney's Office Yoshida, Yoshitake and Arita	View
42	93	TSUTSUI & ASSOCIATES	View
43	91	Aoyama & Partners	View
44	88	Shobayashi International Patent &Trademark Office	View
45	88	Minami Aoyama Patent and Trademark Attorneys	View
46	86	Nagai & Associates	View
47	84	Kai-U Patent Law Firm	View
48	84	KOHNO & KOHNO	View
49	82	Eikoh Patent Firm, P.C.	View
50	80	Ashida & Kimura	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.