Toho International Patent & Law Office
弁理士法人桐朋
Public patent records for Toho International Patent & Law Office, 1978–2024: 1,972 patent families shared with other firms for 93 clients (applicants). Sign in to explore the app’s partner network, selected filing periods, filing activity, and client relationships.
- Patent families shared with other firms
- 1,972
- 1978–2024. One family can be counted more than once.
- Activity 2016–2020
- 325
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 93
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- Toho International Patent & Law Office · Japan
- Filing years
- 2017–2024
- Unit
- Distinct families per year
2021–2026 are preliminary. Patent filings publish about 18 months after filing, and foreign filings can enter later, so these counts are still filling in.
Each family counts once within a year. A family may recur in multiple years.
View annual counts
| Year | Distinct families per year |
|---|---|
| 2017 | 21 |
| 2018 | 19 |
| 2019 | 114 |
| 2020 | 120 |
| 2021 · preliminary | 91 |
| 2022 · preliminary | 89 |
| 2023 · preliminary | 17 |
| 2024 · preliminary | 39 |
Technology fields it focuses on
Fields where this firm's share of patent families is well above the average for Japan firms, 2018–2022.
| Field | Share of its families | vs Japan average |
|---|---|---|
| Devices for introducing media into, or onto, the body; devices for transducing body media or for taking media from the body; devices for producing or ending sleep or stuporIPC/CPC A61M | 14.9% | 5.6× |
| Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energyIPC/CPC H01M | 14.4% | 2.6× |
Yearly counts for 2018–2022, added up: 404 of 489 families carry an IPC or CPC classification. Shares are of those classified families, and one family can fall in several fields.
Frequently associated firms
Firms that most often appear on the same patent families. One family can be counted more than once, so these are not unique totals.
Similar Japan firms
Yearly counts since 1990, added up. One family can be counted more than once.
- Prime Works International Patent Office1,989 shared patent families
- Creo International Patent Law Office弁護士法人クレオ国際法律特許事務所1,989 shared patent families
- 増井特許事務所1,952 shared patent families
- Haruka International Patent Office特許業務法人はるか国際特許事務所1,939 shared patent families
- Yoshida Kenji2,015 shared patent families
Compare Toho International Patent & Law Office side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Toho International Patent & Law Office. App counts follow the filing years and corridors you choose, so they can differ from this public profile.
Filing activity
Recorded patent families across the filing years you choose.
Full partner list
Every observed counterpart for the filing period you choose.
Named clients
Applicant relationships behind the exchange counts.