The following table shows the ranking of Japanese IP law firm. The ranking is based on the following conditions.
- Technical field: IT (information technology, computer software, computer program, method using software, 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 | 1257 | Sakai International Patent Office | View |
2 | 1157 | ITOH International Patent Office | View |
3 | 1095 | SHIGA International Patent Office | View |
4 | 482 | Ohtsuka Patent Office | View |
5 | 393 | SUZUYE & SUZUYE Intellectual Property Law | View |
6 | 294 | In-house patent attorney | - |
7 | 268 | Fukami Patent Office, P.C. | View |
8 | 262 | TMI Associates | View |
9 | 259 | TAIYO, NAKAJIMA & KATO | View |
10 | 257 | In-house patent attorney | - |
11 | 252 | ONDA TECHNO Intl. Patent Attys | View |
12 | 236 | RYUKA IP LAW FIRM | View |
13 | 227 | TANI & ABE, p.c. | View |
14 | 218 | Osuga & Associates | View |
15 | 215 | HIBIKI IP LAW FIRM | View |
16 | 200 | Hazuki International | View |
17 | 193 | SEIWA PATENT & LAW | View |
18 | 191 | Miyoshi & Miyoshi | View |
19 | 188 | SUGIMURA & Partners | View |
20 | 182 | YUASA AND HARA | View |
21 | 169 | KOKUBUN INTERNATIONAL PATENTS & TRADEMARKS | View |
22 | 165 | Nakamura & Partners | View |
23 | 154 | Soei Patent & Law Firm | View |
24 | 150 | Haruka Patent & Trademark Attorneys | View |
25 | 141 | In-house patent attorney | - |
26 | 141 | MIZOI INTERNATIONAL PATENT FIRM | None |
27 | 139 | Shobayashi International Patent &Trademark Office | View |
28 | 139 | HARAKENZO WORLD PATENT & TRADEMARK | View |
29 | 134 | Hattori & Associates | View |
30 | 132 | YKI Intellectual Property Attorneys | View |
31 | 129 | Aoyama & Partners | View |
32 | 126 | SHUSAKU・YAMAMOTO | View |
33 | 123 | Asahi Patent Firm | View |
34 | 109 | Seiryo Intellectual Property Corp. | View |
35 | 108 | Isono International Patent Office, P. C. | View |
36 | 106 | PRIMEWORKS IP Attorneys | View |
37 | 106 | KYOWA PATENT AND LAW OFFICE | View |
38 | 105 | Koyo International Patent Firm | View |
39 | 105 | Patent Attorney's Office Yoshida, Yoshitake and Arita | View |
40 | 102 | Willfort International Patent Firm | View |
41 | 100 | A.SAKAI & ASSOCIATES | View |
42 | 97 | Nagoya International Patent Firm | View |
43 | 97 | S & S INTERNATIONAL PPC | View |
44 | 95 | In-house patent attorney | - |
45 | 94 | Takahashi Hayashi and Partner Patent Attorneys inc. | View |
46 | 93 | In-house patent attorney | - |
47 | 93 | Hiraki & Associates | View |
48 | 90 | Sonderhoff & Einsel | View |
49 | 87 | TOU-OU PATENT FIRM | View |
50 | 86 | Ashida & Kimura | View |
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.