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: Foreign (i.e., patents with claiming priority of a foreign application, or patents based on PCT application whose receiving office is not 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 | 570 | SHIGA International Patent Office | View |
2 | 553 | ITOH International Patent Office | View |
3 | 198 | RYUKA IP LAW FIRM | View |
4 | 184 | ONDA TECHNO Intl. Patent Attys | View |
5 | 161 | SUZUYE & SUZUYE Intellectual Property Law | View |
6 | 152 | Fukami Patent Office, P.C. | View |
7 | 133 | Ohtsuka Patent Office | View |
8 | 129 | SHUSAKU・YAMAMOTO | View |
9 | 114 | TMI Associates | View |
10 | 111 | Nakamura & Partners | View |
11 | 110 | TANI & ABE, p.c. | View |
12 | 104 | YUASA AND HARA | View |
13 | 103 | SEIWA PATENT & LAW | View |
14 | 92 | Sonderhoff & Einsel | View |
15 | 82 | Sonoda & Kobayashi | View |
16 | 75 | In-house patent attorney | - |
17 | 64 | Yamakawa International Patent Office | View |
18 | 62 | SUGIMURA & Partners | View |
19 | 58 | TAIYO, NAKAJIMA & KATO | View |
20 | 55 | Takahashi Hayashi and Partner Patent Attorneys inc. | View |
21 | 54 | Aoyama & Partners | View |
22 | 53 | Kyosei International Patent Office | View |
23 | 48 | Soei Patent & Law Firm | View |
24 | 46 | In-house patent attorney | - |
25 | 45 | Unius Patent Attorneys Office | View |
26 | 42 | Asamura Patent Office, p.c. | View |
27 | 42 | M&S Partners | View |
28 | 40 | SK Intellectual Property Law Firm | View |
29 | 37 | Okabe International Patent Office | View |
30 | 37 | Hiraki & Associates | View |
31 | 37 | HIBIKI IP LAW FIRM | View |
32 | 36 | In-house patent attorney | - |
33 | 35 | KAWAGUTI & PARTNERS | View |
34 | 33 | LIL International Patent & Trademark Firm | View |
35 | 31 | PRIMEWORKS IP Attorneys | View |
36 | 30 | SUWAZAKA Patent and Trademark Office | View |
37 | 28 | Takaoka IP Law | View |
38 | 27 | Miyoshi & Miyoshi | View |
39 | 27 | Yoshikawa International Patent Office | View |
40 | 24 | S. SOGA & CO. | View |
41 | 24 | Meisei International Patent Firm | View |
42 | 23 | Osuga & Associates | View |
43 | 23 | TSUKUNI & ASSOCIATES | View |
44 | 22 | Shin-Ei Patent Firm, P.C. | View |
45 | 21 | Okuyama & Sasajima | View |
46 | 21 | KYOWA PATENT AND LAW OFFICE | View |
47 | 20 | AXIS Patent International | View |
48 | 20 | SANSUI PATENT FIRM | View |
49 | 20 | Shinjyu GLOBAL IP | View |
50 | 19 | Isono International Patent Office, P. C. | 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.