<2017-All> Firm Ranking of the number of Japanese granted patents in the AI field in 2017

2019-01-01 2019-04-28

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

Technical field: AI (artificial intelligence, machine learning, deep learning, etc.)
Status: Japanese granted patents in 2017 (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	34	SHIGA International Patent Office	View
2	31	Sakai International Patent Office	View
3	25	SEIWA PATENT & LAW	View
4	22	ITOH International Patent Office	View
5	21	SUZUYE & SUZUYE Intellectual Property Law	View
6	18	TAIYO, NAKAJIMA & KATO	View
7	15	NAKAO & ASSOCIATES	View
8	12	ONDA TECHNO Intl. Patent Attys	View
9	10	Ohtsuka Patent Office	View
10	9	Ashida & Kimura	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, AI 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.