<2017-All> 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: 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	266	SHIGA International Patent Office	View
2	218	Fukami Patent Office, P.C.	View
3	174	Sakai International Patent Office	View
4	173	ITOH International Patent Office	View
5	153	Patent Attorney's Office Yoshida, Yoshitake and Arita	View
6	142	Soei Patent & Law Firm	View
7	136	Kai-U Patent Law Firm	View
8	130	Sonderhoff & Einsel	View
9	125	Aoyama & Partners	View
10	123	TSUTSUI & ASSOCIATES	View
11	97	Ai Association of Patent and Trademark Attorneys	View
12	96	TAKADA, TAKAHASHI & PARTNERS	View
13	95	TAIYO, NAKAJIMA & KATO	View
14	92	SUZUYE & SUZUYE Intellectual Property Law	View
15	87	SEIWA PATENT & LAW	View
16	84	Nakamura & Partners	View
17	82	Prezio IP Firm	View
18	80	Yoshimiya Patent Office	View
19	80	KYOWA PATENT AND LAW OFFICE	View
20	67	ONDA TECHNO Intl. Patent Attys	View
21	67	A.SAKAI & ASSOCIATES	View
22	67	Sonoda & Kobayashi	View
23	66	HYUGAJI & Associates	View
24	65	Miyoshi & Miyoshi	View
25	64	RYUKA IP LAW FIRM	View
26	60	KOKUBUN INTERNATIONAL PATENTS & TRADEMARKS	View
27	59	In-house patent attorney	－
28	58	Meisei International Patent Firm	View
29	58	TMI Associates	View
30	54	HIBIKI IP LAW FIRM	View
31	53	In-house patent attorney	－
32	53	PALMO PATENT FIRM	View
33	52	YOKOHAMA INTERNATIONAL PATENT LAW OFFICE	View
34	52	Washida & Associates	View
35	49	Katayose Patent	View
36	48	Ohtsuka Patent Office	View
37	47	ION PATENT	View
38	46	Osuga & Associates	View
39	45	Shobayashi International Patent &Trademark Office	View
40	44	AICHI, Takahashi, Iwakura & Associates	View
41	43	SIKs & Co.	View
42	42	YKI Intellectual Property Attorneys	View
43	42	SUGIMURA & Partners	View
44	42	Polaire Intellectual Property Corporation	View
45	41	PRIMEWORKS IP Attorneys	View
46	39	AMANO and Parters	View
47	39	Unius Patent Attorneys Office	View
48	38	Nakajima & Associates IP Firm	View
49	38	ATAGO IP	View
50	37	KATAYAMA & 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, 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.