<2019-Foreign>  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:  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).
RankingNo.IP law firmWebsite
1464SHUSAKU・YAMAMOTO View
2268Aoyama & Partners View
3258Shimizu Patent Office View
4241Abe, Ikubo & Katayama View
5191Nakamura & Partners View
6180SHIGA International Patent Office View
7162SEIWA PATENT & LAW View
8155YUASA AND HARA View
9149Hiraki & Associates View
10106TSUKUNI & ASSOCIATES View
11100Anderson Mori & Tomotsune View
1299Sonoda & Kobayashi View
1395SUBARU PATENT OFFICE View
1491KAWAGUTI & PARTNERS View
1591Takaoka IP Law View
1683Kuzuwa & Partners View
1765Orion Patent Office View
1861Asamura Patent Office, p.c. View
1960KYOWA PATENT AND LAW OFFICE View
2058Soei Patent & Law Firm View
2153SAEGUSA & Partners View
2251Takashima International Patent Office View
2343TMI Associates View
2442HARAKENZO WORLD PATENT & TRADEMARK View
2540KIYOHARA & CO.,PATENT ATTORNEYS View
2639Shobayashi International Patent &Trademark Office View
2737ONDA TECHNO Intl. Patent Attys View
2830Iwatani Patent Office View
2928Kita-Aoyama International Patent Bureau View
3027Okuyama & 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.

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