Tsukuni Patent Attorneys
特許業務法人 津国
Public patent records for Tsukuni Patent Attorneys, 1978–2025: 2,177 patent families shared with other firms for 291 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
- 2,177
- 1978–2025. One family can be counted more than once.
- Activity 2016–2020
- 623
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 291
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- Tsukuni Patent Attorneys · Japan
- Filing years
- 2017–2025
- 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 | 100 |
| 2018 | 80 |
| 2019 | 131 |
| 2020 | 126 |
| 2021 · preliminary | 89 |
| 2022 · preliminary | 70 |
| 2023 · preliminary | 65 |
| 2024 · preliminary | 14 |
| 2025 · preliminary | 1 |
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 |
|---|---|---|
| Photomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices; materials therefor; originals therefor; apparatus specially adapted thereforIPC/CPC G03F | 8.8% | 7.2× |
| Heterocyclic compoundsIPC/CPC C07D | 23.1% | 5.6× |
| Materials for miscellaneous applications, not provided for elsewhereIPC/CPC C09K | 7.4% | 4.2× |
| Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bondsIPC/CPC C08G | 11.3% | 3.9× |
| Specific therapeutic activity of chemical compounds or medicinal preparationsIPC/CPC A61P | 34.0% | 3.4× |
Yearly counts for 2018–2022, added up: 848 of 1,081 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.
- Nagoya International Patent Firm名古屋国際特許業務法人2,188 shared patent families
- Po Reru Tokkyo Gyomu Hojin2,148 shared patent families
- 勝沼国際特許事務所2,225 shared patent families
- TSUKUNI & ASSOCIATES2,241 shared patent families
- WisePlus Patent Firm弁理士法人ＷｉｓｅＰｌｕｓ2,241 shared patent families
Compare Tsukuni Patent Attorneys side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Tsukuni Patent Attorneys. 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.