AOYAMA & PARTNERS
青山特許事務所
Public patent records for AOYAMA & PARTNERS, 1978–2024: 12,822 patent families shared with other firms for 1,335 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
- 12,822
- 1978–2024. One family can be counted more than once.
- Activity 2016–2020
- 1,730
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 1,335
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 4
Activity trend (2017–2026)
- Scope
- AOYAMA & PARTNERS · 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 | 224 |
| 2018 | 255 |
| 2019 | 501 |
| 2020 | 467 |
| 2021 · preliminary | 435 |
| 2022 · preliminary | 342 |
| 2023 · preliminary | 260 |
| 2024 · preliminary | 60 |
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 |
|---|---|---|
| Heterocyclic compoundsIPC/CPC C07D | 20.4% | 4.9× |
| Sugars; derivatives thereof; nucleosides; nucleotides; nucleic acidsIPC/CPC C07H | 2.3% | 4.9× |
| Specific use of cosmetics or similar toiletry preparationsIPC/CPC A61Q | 6.0% | 4.0× |
| Specific therapeutic activity of chemical compounds or medicinal preparationsIPC/CPC A61P | 33.5% | 3.3× |
| Preparations for medical, dental or toiletry purposesIPC/CPC A61K | 41.4% | 3.3× |
Yearly counts for 2018–2022, added up: 2,896 of 3,582 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.
- 中村誠特許事務所12,776 shared patent families
- Fukami Patent Office, P.C.弁理士法人深見特許事務所13,079 shared patent families
- Nogawa Patent Office13,687 shared patent families
- TANI & ABE, p.c.特許業務法人 谷・阿部特許事務所11,446 shared patent families
- ONDA TECHNO International Patent Attorneys弁理士法人オンダ国際特許事務所11,374 shared patent families
Compare AOYAMA & PARTNERS side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for AOYAMA & PARTNERS. 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.