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

2020.04.07 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: Japan (i.e., (i) patents with claiming priority of a Japanese application, (ii) patents based on Japanese domestic application, or (iii) patents based on PCT application whose receiving office is 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	82	Takashima International Patent Office	View
2	69	Aoyama & Partners	View
3	67	SAEGUSA & Partners	View
4	51	The Patent Corporate Body Aruga Patent Office	View
5	47	Hiraki & Associates	View
6	44	Soei Patent & Law Firm	View
7	44	SIKs & Co.	View
8	37	LEXIA PARTNERS	View
9	26	Iwatani Patent Office	View
10	24	SHIGA International Patent Office	View
11	24	IP Firm SHUWA	View
12	23	SEIWA PATENT & LAW	View
13	23	Hirota & Associates	View
14	23	Shimizu Patent Office	View
15	23	YUASA AND HARA	View
16	20	OHNO & PARTNERS	View
17	20	TMI Associates	View
18	17	HOSODA INTERNATIONAL PATENT OFFICE	View
19	16	TSUKUNI & ASSOCIATES	View
20	15	SHUSAKU・YAMAMOTO	View
21	15	Ono & Company	View
22	14	In-house patent attorney	－
23	14	Nakamura & Partners	View
24	13	Ashida & Kimura	View
25	13	Ochanomizu International Patent Office	View
26	13	Moegi Patent Office	View
27	12	HATTA & ASSOCIATES	View
28	12	Morimoto & Associates	View
29	12	Abe, Ikubo & Katayama	View
30	12	Kuzuwa & Partners	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.