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

2019-01-14 2019-04-28

The following table shows the ranking of Japanese IP law firm. The ranking is based on the following conditions.

Technical field: IT (information technology, computer Software, computer program, method using software, 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	584	ITOH International Patent Office	View
2	551	SHIGA International Patent Office	View
3	185	SUZUYE & SUZUYE Intellectual Property Law	View
4	175	RYUKA IP LAW FIRM	View
5	172	ONDA TECHNO Intl. Patent Attys	View
6	154	YUASA AND HARA	View
7	143	Ohtsuka Patent Office	View
8	142	Nakamura & Partners	View
9	122	SHUSAKU・YAMAMOTO	View
10	120	Fukami Patent Office, P.C.	View
11	103	HIBIKI IP LAW FIRM	View
12	99	TANI & ABE, p.c.	View
13	91	In-house patent attorney	－
14	91	TMI Associates	View
15	87	Sonderhoff & Einsel	View
16	86	SEIWA PATENT & LAW	View
17	68	Takahashi Hayashi and Partner Patent Attorneys inc.	View
18	64	Sonoda & Kobayashi	View
19	64	Aoyama & Partners	View
20	63	TAIYO, NAKAJIMA & KATO	View
21	58	SUGIMURA & Partners	View
22	51	Kyosei International Patent Office	View
23	50	Yamakawa International Patent Office	View
24	43	Soei Patent & Law Firm	View
25	43	Unius Patent Attorneys Office	View
26	42	KAWAGUTI & PARTNERS	View
27	41	Osuga & Associates	View
28	38	In-house patent attorney	－
29	38	Asamura Patent Office, p.c.	View
30	37	M&S Partners	View
31	36	Meisei International Patent Firm	View
32	36	In-house patent attorney	－
33	30	Miyoshi & Miyoshi	View
34	28	Okabe International Patent Office	View
35	28	SANSUI PATENT FIRM	View
36	27	Takaoka IP Law	View
37	26	DAIBAPATENT Kawamorita & Shionoya	View
38	24	S. SOGA & CO.	View
39	24	Hiraki & Associates	View
40	23	Yoshikawa International Patent Office	View
41	23	Yanagida & Associates	View
42	22	Okuyama & Sasajima	View
43	22	TSUKUNI & ASSOCIATES	View
44	21	Anderson Mori & Tomotsune	View
45	21	HARAKENZO WORLD PATENT & TRADEMARK	View
46	21	Kita-Aoyama International Patent Bureau	View
47	20	Hazuki International	View
48	20	YKI Intellectual Property Attorneys	View
49	19	PRIMEWORKS IP Attorneys	View
50	18	LIL International Patent & Trademark 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, IT 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.