<2017-Foreign> Firm Ranking of the number of Japanese granted patents in the Semiconductor field in 2017

2019-01-12 2019-04-28

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

Technical field: Semiconductor (semiconductor chip, material, wafer, device, etc.)
Status: Japanese granted patents in 2017 (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).

Ranking	No.	IP law firm	Website
1	127	SHIGA International Patent Office	View
2	124	Sonderhoff & Einsel	View
3	70	ITOH International Patent Office	View
4	63	Sonoda & Kobayashi	View
5	54	Nakamura & Partners	View
6	43	Osuga & Associates	View
7	40	SUZUYE & SUZUYE Intellectual Property Law	View
8	40	Washida & Associates	View
9	38	RYUKA IP LAW FIRM	View
10	37	SEIWA PATENT & LAW	View
11	35	ONDA TECHNO Intl. Patent Attys	View
12	35	Aoyama & Partners	View
13	32	Anderson Mori & Tomotsune	View
14	29	SENDA PATENT BUREAU	View
15	26	Meisei International Patent Firm	View
16	25	Kyosei International Patent Office	View
17	24	YKI Intellectual Property Attorneys	View
18	24	Anzai Patent Firm	None
19	22	Soei Patent & Law Firm	View
20	21	SUGIMURA & Partners	View
21	21	SHUSAKU・YAMAMOTO	View
22	20	Takahashi Hayashi and Partner Patent Attorneys inc.	View
23	20	YUASA AND HARA	View
24	19	Fukami Patent Office, P.C.	View
25	18	TMI Associates	View
26	16	Katayose Patent	View
27	14	Asamura Patent Office, p.c.	View
28	12	TSUKUNI & ASSOCIATES	View
29	10	Yoshikawa International Patent Office	View
30	10	Yanagida & Associates	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, semiconductor 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.