Hanabusa Patent & Trademark Office
弁理士法人はなぶさ特許商標事務所
Public patent records for Hanabusa Patent & Trademark Office, 1978–2024: 1,248 patent families shared with other firms for 80 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
- 1,248
- 1978–2024. One family can be counted more than once.
- Activity 2016–2020
- 112
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 80
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- Hanabusa Patent & Trademark 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 | 7 |
| 2018 | 16 |
| 2019 | 35 |
| 2020 | 46 |
| 2021 · preliminary | 41 |
| 2022 · preliminary | 47 |
| 2023 · preliminary | 12 |
| 2024 · preliminary | 7 |
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 |
|---|---|---|
| Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bondsIPC/CPC C08G | 14.1% | 4.8× |
| Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials thereforIPC/CPC C09D | 11.1% | 4.8× |
| Compositions of macromolecular compoundsIPC/CPC C08L | 10.4% | 2.4× |
| Microorganisms or enzymes; compositions thereof; propagating, preserving, or maintaining microorganisms; mutation or genetic engineering; culture mediaIPC/CPC C12N | 10.1% | 1.9× |
Yearly counts for 2018–2022, added up: 297 of 453 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.
- Utsunomiyamasaaki谷 義一 (外2名)1,247 shared patent families
- Patent Firm Ikeuchi Sato An Dopatonazu1,243 shared patent families
- Koyo International Patent Office弁理士法人光陽国際特許事務所1,243 shared patent families
- Furuya Patent Office1,265 shared patent families
- Eimei International Patent Office弁理士法人英明国際特許事務所1,279 shared patent families
Compare Hanabusa Patent & Trademark Office side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Hanabusa Patent & Trademark 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.