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 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 | 1153 | ITOH International Patent Office | View |
2 | 1145 | Sakai International Patent Office | View |
3 | 1065 | SHIGA International Patent Office | View |
4 | 539 | Ohtsuka Patent Office | View |
5 | 394 | SUZUYE & SUZUYE Intellectual Property Law | View |
6 | 388 | In-house patent attorney | - |
7 | 287 | ONDA TECHNO Intl. Patent Attys | View |
8 | 279 | TMI Associates | View |
9 | 278 | Fukami Patent Office, P.C. | View |
10 | 278 | In-house patent attorney | - |
11 | 270 | TAIYO, NAKAJIMA & KATO | View |
12 | 268 | RYUKA IP LAW FIRM | View |
13 | 227 | TANI & ABE, p.c. | View |
14 | 213 | SEIWA PATENT & LAW | View |
15 | 200 | Hazuki International | View |
16 | 193 | KOKUBUN INTERNATIONAL PATENTS & TRADEMARKS | View |
17 | 184 | SUGIMURA & Partners | View |
18 | 162 | Osuga & Associates | View |
19 | 153 | Soei Patent & Law Firm | View |
20 | 152 | Asahi Patent Firm | View |
21 | 150 | MIZOI INTERNATIONAL PATENT FIRM | None |
22 | 148 | Shobayashi International Patent &Trademark Office | View |
23 | 148 | HIBIKI IP LAW FIRM | View |
24 | 147 | SHUSAKU・YAMAMOTO | View |
25 | 142 | Miyoshi & Miyoshi | View |
26 | 140 | HARAKENZO WORLD PATENT & TRADEMARK | View |
27 | 133 | Nakamura & Partners | View |
28 | 131 | PRIMEWORKS IP Attorneys | View |
29 | 131 | Isono International Patent Office, P. C. | View |
30 | 130 | S & S INTERNATIONAL PPC | View |
31 | 128 | Haruka Patent & Trademark Attorneys | View |
32 | 126 | Nagoya International Patent Firm | View |
33 | 123 | YUASA AND HARA | View |
34 | 116 | Minami Aoyama Patent and Trademark Attorneys | View |
35 | 114 | KYOWA PATENT AND LAW OFFICE | View |
36 | 114 | Aoyama & Partners | View |
37 | 111 | IP Firm SHUWA | View |
38 | 109 | YKI Intellectual Property Attorneys | View |
39 | 107 | Hattori & Associates | View |
40 | 106 | KOHNO & KOHNO | View |
41 | 103 | Koyo International Patent Firm | View |
42 | 103 | Hiraki & Associates | View |
43 | 101 | Isshiki & Co. | View |
44 | 99 | In-house patent attorney | - |
45 | 98 | Patent Attorney's Office Yoshida, Yoshitake and Arita | View |
46 | 97 | Sonderhoff & Einsel | View |
47 | 90 | In-house patent attorney | - |
48 | 90 | Ashida & Kimura | View |
49 | 88 | CHUO INTERNATIONAL PATENT FIRM | View |
50 | 87 | TOU-OU PATENT FIRM | 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.