<2019-All> Firm Ranking of the number of Japanese granted patents in the Semiconductor field in 2019

2020-05-06 2020-04-19

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 2019 (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	164	Fukami Patent Office, P.C.	View
2	145	Patent Attorney's Office Yoshida, Yoshitake and Arita	View
3	139	TSUTSUI & ASSOCIATES	View
4	134	Soei Patent & Law Firm	View
5	132	ITOH International Patent Office	View
6	130	SHIGA International Patent Office	View
7	102	Sakai International Patent Office	View
8	101	Ai Association of Patent and Trademark Attorneys	View
9	97	SEIWA PATENT & LAW	View
10	92	TAIYO, NAKAJIMA & KATO	View
11	90	SUZUYE & SUZUYE Intellectual Property Law	View
12	87	Sonderhoff & Einsel	View
13	84	RYUKA IP LAW FIRM	View
14	82	Aoyama & Partners	View
15	72	TAKADA, TAKAHASHI & PARTNERS	View
16	68	KYOWA PATENT AND LAW OFFICE	View
17	65	Sonoda & Kobayashi	View
18	60	SUGIMURA & Partners	View
19	59	HYUGAJI & Associates	View
20	58	Kai-U Patent Law Firm	View
21	58	HIBIKI IP LAW FIRM	View
22	55	Miyoshi & Miyoshi	View
23	54	A.SAKAI & ASSOCIATES	View
24	51	Prezio IP Firm	View
25	51	ION PATENT	View
26	51	Polaire Intellectual Property Corporation	View
27	51	Nakamura & Partners	View
28	50	Meisei International Patent Firm	View
29	50	YOKOHAMA INTERNATIONAL PATENT LAW OFFICE	View
30	48	YOU-I Patent Firm	View
31	48	Yoshimiya Patent Office	View
32	45	ONDA TECHNO Intl. Patent Attys	View
33	43	YKI Intellectual Property Attorneys	View
34	43	YUWA INTERNATIONAL PATENT FIRM	View
35	42	TMI Associates	View
36	41	NICHIEI Patent and Trademark Attorneys	View
37	37	AICHI, Takahashi, Iwakura & Associates	View
38	36	Katayose Patent	View
39	35	PALMO PATENT FIRM	View
40	34	OKUDA & ASSOCIATES	View
41	33	NII Patent Firm	View
42	33	In-house patent attorney	－
43	33	Ohtsuka Patent Office	View
44	32	TANI & ABE, p.c.	View
45	32	Unius Patent Attorneys Office	View
46	32	Kyosei International Patent Office	View
47	32	Yamakawa International Patent Office	View
48	31	TSUKUNI & ASSOCIATES	View
49	30	Eimei Patent Office	N/A
50	30	TRY International IP LAW FIRM	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.