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

2019-03-03 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: 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	203	Fukami Patent Office, P.C.	View
2	191	TSUTSUI & ASSOCIATES	View
3	184	SHIGA International Patent Office	View
4	183	Patent Attorney's Office Yoshida, Yoshitake and Arita	View
5	162	ITOH International Patent Office	View
6	135	Soei Patent & Law Firm	View
7	132	Sakai International Patent Office	View
8	118	SEIWA PATENT & LAW	View
9	113	TAIYO, NAKAJIMA & KATO	View
10	107	Sonderhoff & Einsel	View
11	107	SUZUYE & SUZUYE Intellectual Property Law	View
12	101	Aoyama & Partners	View
13	99	TAKADA, TAKAHASHI & PARTNERS	View
14	92	KYOWA PATENT AND LAW OFFICE	View
15	87	RYUKA IP LAW FIRM	View
16	81	Ai Association of Patent and Trademark Attorneys	View
17	75	HYUGAJI & Associates	View
18	73	Kai-U Patent Law Firm	View
19	72	Nakamura & Partners	View
20	71	Sonoda & Kobayashi	View
21	70	YOU-I Patent Firm	View
22	66	HIBIKI IP LAW FIRM	View
23	64	Prezio IP Firm	View
24	63	A.SAKAI & ASSOCIATES	View
25	61	In-house patent attorney	－
26	61	Miyoshi & Miyoshi	View
27	56	ION PATENT	View
28	54	ONDA TECHNO Intl. Patent Attys	View
29	54	Meisei International Patent Firm	View
30	53	Yoshimiya Patent Office	View
31	53	PALMO PATENT FIRM	View
32	50	YOKOHAMA INTERNATIONAL PATENT LAW OFFICE	View
33	48	YKI Intellectual Property Attorneys	View
34	47	TANI & ABE, p.c.	View
35	46	Ohtsuka Patent Office	View
36	46	Kyosei International Patent Office	View
37	43	Unius Patent Attorneys Office	View
38	42	KOKUBUN INTERNATIONAL PATENTS & TRADEMARKS	View
39	42	Shobayashi International Patent &Trademark Office	View
40	42	AICHI, Takahashi, Iwakura & Associates	View
41	40	Takahashi Hayashi and Partner Patent Attorneys inc.	View
42	40	Polaire Intellectual Property Corporation	View
43	40	PRIMEWORKS IP Attorneys	View
44	39	In-house patent attorney	－
45	39	In-house patent attorney	－
46	39	Isono International Patent Office, P. C.	View
47	38	Washida & Associates	View
48	38	Ohtani Patent Office	View
49	38	YUASA AND HARA	View
50	37	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.