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

2019-04-10 2019-04-28

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

Technical field: Pharmaceutical (pharmaceutical composition, medicine, API, production method of thereof, 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	446	SHUSAKU・YAMAMOTO	View
2	309	Aoyama & Partners	View
3	297	Abe, Ikubo & Katayama	View
4	267	Shimizu Patent Office	View
5	242	SHIGA International Patent Office	View
6	218	SEIWA PATENT & LAW	View
7	208	Hiraki & Associates	View
8	205	YUASA AND HARA	View
9	195	Nakamura & Partners	View
10	137	TSUKUNI & ASSOCIATES	View
11	119	SAEGUSA & Partners	View
12	117	Takashima International Patent Office	View
13	111	SUBARU PATENT OFFICE	View
14	107	Soei Patent & Law Firm	View
15	106	Kuzuwa & Partners	View
16	101	KAWAGUTI & PARTNERS	View
17	98	Anderson Mori & Tomotsune	View
18	92	The Patent Corporate Body Aruga Patent Office	View
19	87	Sonoda & Kobayashi	View
20	84	Takaoka IP Law	View
21	66	Orion Patent Office	View
22	63	KYOWA PATENT AND LAW OFFICE	View
23	62	Iwatani Patent Office	View
24	60	Asamura Patent Office, p.c.	View
25	58	Hirota, Nagare & Associates	View
26	56	SIKs & Co.	View
27	52	TMI Associates	View
28	47	ONDA TECHNO Intl. Patent Attys	View
29	45	Hirota & Associates	View
30	44	OHNO & PARTNERS	View
31	43	SK Intellectual Property Law Firm	View
32	41	Shobayashi International Patent &Trademark Office	View
33	39	SUZUYE & SUZUYE Intellectual Property Law	View
34	39	KIYOHARA & CO.,PATENT ATTORNEYS	View
35	38	Unius Patent Attorneys Office	View
36	38	HARAKENZO WORLD PATENT & TRADEMARK	View
37	36	LEXIA PARTNERS	View
38	36	TAIYO, NAKAJIMA & KATO	View
39	36	HOSODA INTERNATIONAL PATENT OFFICE	View
40	33	Okuyama & Sasajima	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, Pharmaceutical 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.