Yamamoto Patent
山本特許法律事務所
Yamamoto Patent is a Japan-based patent law firm with 36 years of recorded international activity (1990–2025). 20,729 total international patent cases are on record, spanning 4 foreign jurisdictions and 8,205 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
- 20,729
- Last 5 years
- 1,592
- Applicants
- 8,205
- Flow type
- Incoming-heavy
Applicant count reflects distinct corporate clients represented in outgoing filings.
Activity trend (last 10 years)
Top international partners
Sends cases to
Receives cases from
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See the full picture
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