<2019-Foreign> Firm Ranking of the number of Japanese granted patents in the IT field in 2019

2020.04.13 2020.04.06

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 2019 (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	428	SHIGA International Patent Office	View
2	381	ITOH International Patent Office	View
3	204	Fukami Patent Office, P.C.	View
4	155	Ohtsuka Patent Office	View
5	135	TMI Associates	View
6	127	Nakamura & Partners	View
7	126	RYUKA IP LAW FIRM	View
8	115	SHUSAKU・YAMAMOTO	View
9	107	TANI & ABE, p.c.	View
10	94	SEIWA PATENT & LAW	View
11	92	YUASA AND HARA	View
12	91	SUZUYE & SUZUYE Intellectual Property Law	View
13	88	ONDA TECHNO Intl. Patent Attys	View
14	81	Sonoda & Kobayashi	View
15	72	SUGIMURA & Partners	View
16	71	Sonderhoff & Einsel	View
17	62	In-house patent attorney	－
18	54	Miyoshi & Miyoshi	View
19	50	TAIYO, NAKAJIMA & KATO	View
20	49	World IP Law	View
21	48	Aoyama & Partners	View
22	44	Kyosei International Patent Office	View
23	42	M&S Partners	View
24	38	Sakai International Patent Office	View
25	36	SK Intellectual Property Law Firm	View
26	36	Soei Patent & Law Firm	View
27	36	LIL International Patent & Trademark Firm	View
28	36	Asamura Patent Office, p.c.	View
29	34	Yamakawa International Patent Office	View
30	33	KAWAGUTI & PARTNERS	View
31	33	TRY International IP LAW FIRM	View
32	32	Takahashi Hayashi and Partner Patent Attorneys inc.	View
33	32	Okabe International Patent Office	View
34	31	PRIMEWORKS IP Attorneys	View
35	29	In-house patent attorney	－
36	28	Hiraki & Associates	View
37	27	SUWAZAKA Patent and Trademark Office	View
38	26	Shinjyu GLOBAL IP	View
39	26	SANSUI PATENT FIRM	View
40	26	Hirota & Associates	View
41	26	S. SOGA & CO.	View
42	24	KYOWA PATENT AND LAW OFFICE	View
43	23	DAIBAPATENT Kawamorita & Shionoya	View
44	22	Yoshikawa International Patent Office	View
45	21	WAKABAYASHI PATENT AGENCY	View
46	19	Okuyama & Sasajima	View
47	19	Tsubame Patent Attorney Firm	View
48	19	Ashida & Kimura	View
49	19	Shobayashi International Patent &Trademark Office	View
50	19	Takaoka IP Law	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.