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 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||73||The Patent Corporate Body Aruga Patent Office||View|
|2||73||Soei Patent & Law Firm||View|
|3||68||YUASA AND HARA||View|
|4||66||SHIGA International Patent Office||View|
|5||53||Showa International Patent Firm||View|
|6||50||SAEGUSA & Partners||View|
|7||47||Aoyama & Partners||View|
|8||43||Hiraki & Associates||View|
|9||37||KYOWA PATENT AND LAW OFFICE||View|
|10||37||Nakamura & Partners||View|
|11||33||Shobayashi International Patent &Trademark Office||View|
|12||30||Takashima International Patent Office||View|
|13||25||Moegi Patent Office||View|
|14||22||Hirota & Associates||View|
|15||21||Nishizawa International Patent Firm||N/A|
|16||20||SEIWA PATENT & LAW||View|
|17||19||Kuzuwa & Partners||View|
|18||18||KUNPU INTELLECTUAL PROPERTY AGENTS||View|
|19||18||Prezio IP Firm||View|
|21||17||Hirota, Nagare & Associates||View|
|22||17||Sonderhoff & Einsel||View|
|23||15||SANSUI PATENT FIRM||View|
|24||15||Patent Corporate Body ARCO PATENT OFFICE||View|
|25||15||Asamura Patent Office, p.c.||View|
|26||15||S. Matsui & Associates||View|
|27||14||Abe, Ikubo & Katayama||View|
|28||14||SUBARU PATENT OFFICE||View|
|29||13||Isono International Patent Office, P. C.||View|
|30||13||SATO & ASSOCIATES||View|
|31||13||Yanagino Intellectual Property Firm||View|
|32||12||Iwatani Patent Office||View|
|33||12||SUGIMURA & Partners||View|
|35||12||HOSODA INTERNATIONAL PATENT OFFICE||View|
|36||11||ONDA TECHNO Intl. Patent Attys||View|
|37||11||Fujimoto & Partners||View|
|38||10||SIKs & Co.||View|
|39||10||WAKABAYASHI PATENT AGENCY||View|
|40||10||MAEDA & PARTNERS||View|
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.