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

  • Technical field:  Food  (meat products, noodle, chocolate, soup, 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).
RankingNo.IP law firmWebsite
179The Patent Corporate Body Aruga Patent Office View
360Hiraki & Associates View
459SHIGA International Patent Office View
556SAEGUSA & Partners View
656Soei Patent & Law Firm View
741Showa International Patent Firm View
838Nakamura & Partners View
937Aoyama & Partners View
1227Hirota & Associates View
1424Kuzuwa & Partners View
1524Iwatani Patent Office View
1623Moegi Patent Office View
1721Eikoh Patent Firm, P.C. View
1821Shobayashi International Patent &Trademark Office View
1921Takashima International Patent Office View
2020Shinjyu GLOBAL IP View
2118Yanagino Intellectual Property Firm View
2217Yanagida & Associates View
2317Hirota, Nagare & Associates View
2416Minato Mirai Patent Firm View
2516SIKs & Co. View
2615S. Matsui & Associates View
2715Nishizawa International Patent FirmNone
2815Sakai International Patent Office View
2914ONDA TECHNO Intl. Patent Attys View
3014Abe, Ikubo & Katayama View
3113Shimizu Patent Office View
3213SUGIMURA & Partners View
3313Ochanomizu International Patent Office View
3412Patent Corporate Body ARCO PATENT OFFICE View
3511Okabe International Patent Office View
3611TMI Associates View
3711Prezio IP Firm View
3811SK Intellectual Property Law Firm View
3910Sonderhoff & Einsel View
4010Kyushu International Patent 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, Food  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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