The following table shows the ranking of Japanese IP law firm. The ranking is based on the following conditions.
- Technical field: Hybrid car (Hybrid car technology having broad facet classification: control device, power supply system, electric power conversion device for hybrid vehicle, 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 | 71 | Fukami Patent Office, P.C. | View |
2 | 40 | CREO Law & Intellectual Property | View |
3 | 32 | Watanabe International Patent Office | View |
4 | 26 | ITEC International Patent Firm | View |
5 | 20 | MAEDA & PARTNERS | View |
6 | 20 | Sakai International Patent Office | View |
7 | 20 | Sankyo International Patent Attorneys Office | View |
8 | 20 | YKI Intellectual Property Attorneys | View |
9 | 19 | GOTOH & PARTNERS | View |
10 | 18 | ONDA TECHNO Intl. Patent Attys | View |
11 | 18 | Kyoritsu International | View |
12 | 17 | HATTORI & PARTNERS | View |
13 | 17 | R&C IP Law Firm | View |
14 | 16 | Ikeda Patent Office | View |
15 | 15 | Aoyama & Partners | View |
16 | 15 | Tokyo Central Patent Firm | View |
17 | 14 | Seiryu International Patent Firm | None |
18 | 13 | TSUTSUI & ASSOCIATES | View |
19 | 13 | AICHI, Takahashi, Iwakura & Associates | View |
20 | 13 | S. SOGA & CO. | View |
21 | 13 | Koh-Ei Patent Firm, P.C. | View |
22 | 12 | TMI Associates | View |
23 | 11 | Ochiai Patent Firm | None |
24 | 10 | HIKARI PATENT OFFICE | View |
25 | 10 | In-house patent attorney | - |
26 | 10 | AIGI Intellectual Property Law Firm | View |
27 | 10 | SUNNEXT International Patent Office | View |
28 | 9 | Ayata Patent Firm | None |
29 | 9 | TAKEWA?PATENT?OFFICE | View |
30 | 8 | ITOH-SHIN PATENT OFFICE | 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.