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

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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).
RankingNo.IP law firmWebsite
1479SHUSAKU・YAMAMOTO View
2337Aoyama & Partners View
3281Shimizu Patent Office View
4253Abe, Ikubo & Katayama View
5205Nakamura & Partners View
6200SHIGA International Patent Office View
7196Hiraki & Associates View
8185SEIWA PATENT & LAW View
9178YUASA AND HARA View
10133Takashima International Patent Office View
11122TSUKUNI & ASSOCIATES View
12120SAEGUSA & Partners View
13103Anderson Mori & Tomotsune View
14102Soei Patent & Law Firm View
15100Sonoda & Kobayashi View
1697KAWAGUTI & PARTNERS View
1795Kuzuwa & Partners View
1895SUBARU PATENT OFFICE View
1993Takaoka IP Law View
2071Asamura Patent Office, p.c. View
2169Orion Patent Office View
2264KYOWA PATENT AND LAW OFFICE View
2363TMI Associates View
2462SIKs & Co. View
2556Iwatani Patent Office View
2653The Patent Corporate Body Aruga Patent Office View
2748HARAKENZO WORLD PATENT & TRADEMARK View
2846Hirota & Associates View
2946Shobayashi International Patent &Trademark Office View
3045OHNO & PARTNERS View
3144LEXIA PARTNERS View
3243KIYOHARA & CO.,PATENT ATTORNEYS View
3341ONDA TECHNO Intl. Patent Attys View
3440IP Firm SHUWA View
3539HOSODA INTERNATIONAL PATENT OFFICE View
3637YuNeed International Patent Office View
3737Ashida & Kimura View
3834TAIYO, NAKAJIMA & KATO View
3933HATTA & ASSOCIATES View
4033Unius 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.

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