Nishikawa International Patent Office
西川国際特許事務所
Nishikawa International Patent Office is a Japan-based patent law firm with 49 years of recorded international activity (1978–2026). 1,713 total international patent cases are on record, spanning 4 foreign jurisdictions and 412 distinct corporate applicants. This public snapshot is drawn from FlowIP's IP5 patent exchange dataset; full partner lists, time series, and decision-maker analysis are available to signed-in users.
- Total cases
- 1,713
- Last 5 years
- 14
- Applicants
- 412
- Flow type
- Balanced
Applicant count reflects distinct corporate clients represented in outgoing filings.
Activity trend (last 10 years)
Top international partners
Sends cases to
- Chip Law GroupUS238 cases
- 이중희KR138 cases
- 장수길KR127 cases
- Oblon McClellandUS108 cases
- D Young & CoEP93 cases
Similar Japan firms
See the full picture
This public profile shows the top 5 partners, summary trend, and aggregate applicant count. Sign in to see the complete partner list, year-by-year breakdown, decision-maker analysis (firm vs client-driven), and named top applicants for Nishikawa International Patent Office.