Hatta International Patent Office
八田国際特許業務法人
Public patent records for Hatta International Patent Office, 1978–2022: 1,894 patent families shared with other firms for 216 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
- 1,894
- 1978–2022. One family can be counted more than once.
- Activity 2016–2020
- 146
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 216
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- Hatta International Patent Office · Japan
- Filing years
- 2017–2022
- 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 | 27 |
| 2018 | 11 |
| 2019 | 21 |
| 2020 | 14 |
| 2021 · preliminary | 2 |
| 2022 · 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 | 11.1% | 9.0× |
| Materials for miscellaneous applications, not provided for elsewhereIPC/CPC C09K | 12.2% | 6.8× |
| Optical elements, systems or apparatusIPC/CPC G02B | 15.8% | 3.7× |
| Use of inorganic or non-macromolecular organic substances as compounding ingredientsIPC/CPC C08K | 10.8% | 3.4× |
| Semiconductor devices not covered by class H10IPC/CPC H01L | 21.9% | 3.3× |
Yearly counts for 2018–2022, added up: 279 of 510 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.
- Morita Patent Office森田特許事務所1,912 shared patent families
- Takashima International Patent Office Tokyo1,921 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
- 増井特許事務所1,952 shared patent families
- Toho International Patent & Law Office弁理士法人桐朋1,828 shared patent families
Compare Hatta International Patent Office side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Hatta International Patent 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.