<2017-JP> 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: Japan (i.e., (i) patents with claiming priority of a Japanese application, (ii) patents based on Japanese domestic application, or (iii) patents based on PCT application whose receiving office is 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	199	Fukami Patent Office, P.C.	View
2	171	Sakai International Patent Office	View
3	153	Patent Attorney's Office Yoshida, Yoshitake and Arita	View
4	139	SHIGA International Patent Office	View
5	136	Kai-U Patent Law Firm	View
6	121	TSUTSUI & ASSOCIATES	View
7	120	Soei Patent & Law Firm	View
8	103	ITOH International Patent Office	View
9	96	Ai Association of Patent and Trademark Attorneys	View
10	96	TAKADA, TAKAHASHI & PARTNERS	View
11	90	Aoyama & Partners	View
12	90	TAIYO, NAKAJIMA & KATO	View
13	79	Prezio IP Firm	View
14	77	Yoshimiya Patent Office	View
15	70	KYOWA PATENT AND LAW OFFICE	View
16	67	A.SAKAI & ASSOCIATES	View
17	62	Miyoshi & Miyoshi	View
18	62	HYUGAJI & Associates	View
19	60	KOKUBUN INTERNATIONAL PATENTS & TRADEMARKS	View
20	59	In-house patent attorney	－
21	53	In-house patent attorney	－
22	53	PALMO PATENT FIRM	View
23	52	HIBIKI IP LAW FIRM	View
24	52	YOKOHAMA INTERNATIONAL PATENT LAW OFFICE	View
25	52	SUZUYE & SUZUYE Intellectual Property Law	View
26	50	SEIWA PATENT & LAW	View
27	46	ION PATENT	View
28	44	AICHI, Takahashi, Iwakura & Associates	View
29	42	Shobayashi International Patent &Trademark Office	View
30	42	Polaire Intellectual Property Corporation	View
31	40	SIKs & Co.	View
32	40	TMI Associates	View
33	39	AMANO and Parters	View
34	38	Ohtsuka Patent Office	View
35	38	ATAGO IP	View
36	37	Ohtani Patent Office	View
37	36	In-house patent attorney	－
38	36	KATAYAMA & PARTNERS	View
39	35	Nakajima & Associates IP Firm	View
40	35	Unius Patent Attorneys Office	View
41	34	IIDA & PARTNERS	View
42	34	YOU-I Patent Firm	View
43	34	YUWA INTERNATIONAL PATENT FIRM	View
44	34	PRIMEWORKS IP Attorneys	View
45	33	Katayose Patent	View
46	33	Matsuura & Associates	View
47	32	ONDA TECHNO Intl. Patent Attys	View
48	32	Meisei International Patent Firm	View
49	32	INFORT PATENT FIRM	View
50	32	NICHIEI Patent and Trademark Attorneys	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.