[Semiconductor] Firm Ranking of the number of Japanese granted patents in the Semiconductor field in 2020

2021-07-11 2021-07-23

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 2020 (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	188	SHIGA International Patent Office	View
2	165	Fukami Patent Office, P.C.	View
3	164	Patent Attorney's Office Yoshida, Yoshitake and Arita	View
4	164	ITOH International Patent Office	View
5	140	RYUKA IP LAW FIRM	View
6	120	Sakai International Patent Office	View
7	119	Soei Patent & Law Firm	View
8	105	Sonoda & Kobayashi	View
9	102	Ai Association of Patent and Trademark Attorneys	View
10	99	TAKADA, TAKAHASHI & PARTNERS	View
11	99	Kai-U Patent Law Firm	View
12	94	Sonderhoff & Einsel	View
13	90	Aoyama & Partners	View
14	85	TSUTSUI & ASSOCIATES	View
15	78	SUZUYE & SUZUYE Intellectual Property Law	View
16	77	SEIWA PATENT & LAW	View
17	73	A.SAKAI & ASSOCIATES	View
18	73	KYOWA PATENT AND LAW OFFICE	View
19	71	HYUGAJI & Associates	View
20	70	TAIYO, NAKAJIMA & KATO	View
21	64	In-house patent attorney	－
22	61	NII Patent Firm	View
23	60	SUGIMURA & Partners	View
24	58	YKI Intellectual Property Attorneys	View
25	57	Nakamura & Partners	View
26	57	Yoshimiya Patent Office	View
27	55	HIBIKI IP LAW FIRM	View
28	55	Polaire Intellectual Property Corporation	View
29	53	Okabe International Patent Office	View
30	52	YOU-I Patent Firm	View
31	51	NICHIEI Patent and Trademark Attorneys	View
32	50	YUWA INTERNATIONAL PATENT FIRM	View
33	50	PRIMEWORKS IP Attorneys	View
34	49	YOKOHAMA INTERNATIONAL PATENT LAW OFFICE	View
35	48	ION PATENT	View
36	47	Takahashi Hayashi and Partner Patent Attorneys inc.	View
37	47	Katayose Patent	View
38	44	Nishikawa & Associates	View
39	40	Meisei International Patent Firm	View
40	40	OKUDA & ASSOCIATES	View
41	39	Sano Patent Office	View
42	39	Yamakawa International Patent Office	View
43	35	TANI & ABE, p.c.	View
44	34	Eimei Patent Office	N/A
45	34	Washida & Associates	View
46	33	Shobayashi International Patent &Trademark Office	View
47	33	Matsuura & Associates	View
48	32	KOKUBUN INTERNATIONAL PATENTS & TRADEMARKS	View
49	32	TSUKUNI & ASSOCIATES	View
50	32	Shinjyu GLOBAL IP	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.