<2018-All> Firm Ranking of the number of Japanese granted patents in the Diagnosis field in 2018

2019-04-23 2019-04-28

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

Technical field: Diagnosis (diagnosis agent/method, detecting agent/method of cancer/dementia, 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).

Ranking	No.	IP law firm	Website
1	18	SHUSAKU・YAMAMOTO	View
2	18	Hiraki & Associates	View
3	16	Shimizu Patent Office	View
4	11	Abe, Ikubo & Katayama	View
5	11	SHIGA International Patent Office	View
6	10	Aoyama & Partners	View
7	9	SAEGUSA & Partners	View
8	9	SEIWA PATENT & LAW	View
9	7	Sonoda & Kobayashi	View
10	7	YUASA AND HARA	View
11	7	Takashima International Patent Office	View
12	6	Soei Patent & Law Firm	View
13	6	TSUKUNI & ASSOCIATES	View
14	5	KUNPU INTELLECTUAL PROPERTY AGENTS	View
15	5	KAWAGUTI & PARTNERS	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, Diagnosis 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.