<2018-Foreign> Firm Ranking of the number of Japanese granted patents in the IT field in 2018

2019-03-21 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 2018 (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	570	SHIGA International Patent Office	View
2	553	ITOH International Patent Office	View
3	198	RYUKA IP LAW FIRM	View
4	184	ONDA TECHNO Intl. Patent Attys	View
5	161	SUZUYE & SUZUYE Intellectual Property Law	View
6	152	Fukami Patent Office, P.C.	View
7	133	Ohtsuka Patent Office	View
8	129	SHUSAKU・YAMAMOTO	View
9	114	TMI Associates	View
10	111	Nakamura & Partners	View
11	110	TANI & ABE, p.c.	View
12	104	YUASA AND HARA	View
13	103	SEIWA PATENT & LAW	View
14	92	Sonderhoff & Einsel	View
15	82	Sonoda & Kobayashi	View
16	75	In-house patent attorney	－
17	64	Yamakawa International Patent Office	View
18	62	SUGIMURA & Partners	View
19	58	TAIYO, NAKAJIMA & KATO	View
20	55	Takahashi Hayashi and Partner Patent Attorneys inc.	View
21	54	Aoyama & Partners	View
22	53	Kyosei International Patent Office	View
23	48	Soei Patent & Law Firm	View
24	46	In-house patent attorney	－
25	45	Unius Patent Attorneys Office	View
26	42	Asamura Patent Office, p.c.	View
27	42	M&S Partners	View
28	40	SK Intellectual Property Law Firm	View
29	37	Okabe International Patent Office	View
30	37	Hiraki & Associates	View
31	37	HIBIKI IP LAW FIRM	View
32	36	In-house patent attorney	－
33	35	KAWAGUTI & PARTNERS	View
34	33	LIL International Patent & Trademark Firm	View
35	31	PRIMEWORKS IP Attorneys	View
36	30	SUWAZAKA Patent and Trademark Office	View
37	28	Takaoka IP Law	View
38	27	Miyoshi & Miyoshi	View
39	27	Yoshikawa International Patent Office	View
40	24	S. SOGA & CO.	View
41	24	Meisei International Patent Firm	View
42	23	Osuga & Associates	View
43	23	TSUKUNI & ASSOCIATES	View
44	22	Shin-Ei Patent Firm, P.C.	View
45	21	Okuyama & Sasajima	View
46	21	KYOWA PATENT AND LAW OFFICE	View
47	20	AXIS Patent International	View
48	20	SANSUI PATENT FIRM	View
49	20	Shinjyu GLOBAL IP	View
50	19	Isono International Patent Office, P. C.	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.