<2018-Foreign> Firm Ranking of the number of Japanese granted patents in the Semiconductor field in 2018

2019-04-29 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 2018 (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	103	Sonderhoff & Einsel	View
2	86	SHIGA International Patent Office	View
3	71	ITOH International Patent Office	View
4	70	Sonoda & Kobayashi	View
5	65	SEIWA PATENT & LAW	View
6	52	Nakamura & Partners	View
7	50	SUZUYE & SUZUYE Intellectual Property Law	View
8	48	RYUKA IP LAW FIRM	View
9	44	Kyosei International Patent Office	View
10	35	YKI Intellectual Property Attorneys	View
11	34	Fukami Patent Office, P.C.	View
12	32	Aoyama & Partners	View
13	31	Meisei International Patent Firm	View
14	30	ONDA TECHNO Intl. Patent Attys	View
15	29	Osuga & Associates	View
16	28	Washida & Associates	View
17	27	SENDA PATENT BUREAU	View
18	23	Anderson Mori & Tomotsune	View
19	23	YUASA AND HARA	View
20	22	Soei Patent & Law Firm	View
21	21	TRY International IP LAW FIRM	View
22	16	In-house patent attorney	－
23	16	Suzuran International Patent Firm	None
24	14	SHUSAKU・YAMAMOTO	View
25	14	SUGIMURA & Partners	View
26	14	Takahashi Hayashi and Partner Patent Attorneys inc.	View
27	12	MAEDA & PARTNERS	View
28	12	Yoshikawa International Patent Office	View
29	10	Ohtsuka Patent Office	View
30	10	Anzai Patent Firm	None

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.