Yoshikawa International Patent Office
吉川国際特許事務所
Yoshikawa International Patent Office is a Japan-based patent law firm with 46 years of recorded international activity (1979–2024). 1,738 total international patent cases are on record, spanning 4 foreign jurisdictions and 331 distinct corporate applicants. Sign in to open the complete partner network, year-by-year activity, decision-maker analysis, and named client relationships.
- International cases
- 1,738
- Last 5 years
- 199
- Applicants
- 331
- Flow type
- Incoming-heavy
Sent plus received relationship cases on this firm’s public profile. Can differ from the directory index. As of 2024.
Activity trend (last 10 years)
- Scope
- Yoshikawa International Patent Office · Japan
- Window
- 2017–2024
- As of
- Recorded activity through 2024
- Unit
- International exchange cases
View annual counts
| Year | International cases |
|---|---|
| 2017 | 56 |
| 2018 | 44 |
| 2019 | 65 |
| 2020 | 98 |
| 2021 | 120 |
| 2022 | 130 |
| 2023 | 53 |
| 2024 | 16 |
Top international partners
Sends cases to
Similar Japan firms
Global firm case index used for directory ranking. Not the same as a profile’s international exchange total.
Locked in the full profile
This public page is a preview. Sign in to open the complete partner network, year-by-year activity, and decision-maker analysis for Yoshikawa International Patent Office.
Decision-maker split
Firm-chosen vs applicant-chosen foreign counsel, when tagged.
Full partner list
Every observed counterpart, not only the public top five.
Named clients
Applicant relationships behind the exchange counts.