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

2020.04.06 2020.04.06

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 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	479	SHUSAKU・YAMAMOTO	View
2	337	Aoyama & Partners	View
3	281	Shimizu Patent Office	View
4	253	Abe, Ikubo & Katayama	View
5	205	Nakamura & Partners	View
6	200	SHIGA International Patent Office	View
7	196	Hiraki & Associates	View
8	185	SEIWA PATENT & LAW	View
9	178	YUASA AND HARA	View
10	133	Takashima International Patent Office	View
11	122	TSUKUNI & ASSOCIATES	View
12	120	SAEGUSA & Partners	View
13	103	Anderson Mori & Tomotsune	View
14	102	Soei Patent & Law Firm	View
15	100	Sonoda & Kobayashi	View
16	97	KAWAGUTI & PARTNERS	View
17	95	Kuzuwa & Partners	View
18	95	SUBARU PATENT OFFICE	View
19	93	Takaoka IP Law	View
20	71	Asamura Patent Office, p.c.	View
21	69	Orion Patent Office	View
22	64	KYOWA PATENT AND LAW OFFICE	View
23	63	TMI Associates	View
24	62	SIKs & Co.	View
25	56	Iwatani Patent Office	View
26	53	The Patent Corporate Body Aruga Patent Office	View
27	48	HARAKENZO WORLD PATENT & TRADEMARK	View
28	46	Hirota & Associates	View
29	46	Shobayashi International Patent &Trademark Office	View
30	45	OHNO & PARTNERS	View
31	44	LEXIA PARTNERS	View
32	43	KIYOHARA & CO.,PATENT ATTORNEYS	View
33	41	ONDA TECHNO Intl. Patent Attys	View
34	40	IP Firm SHUWA	View
35	39	HOSODA INTERNATIONAL PATENT OFFICE	View
36	37	YuNeed International Patent Office	View
37	37	Ashida & Kimura	View
38	34	TAIYO, NAKAJIMA & KATO	View
39	33	HATTA & ASSOCIATES	View
40	33	Unius Patent Attorneys Office	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.