CP Japan Patent Office
Public patent records for CP Japan Patent Office, 1978–2023: 2,513 patent families shared with other firms for 154 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
- 2,513
- 1978–2023. One family can be counted more than once.
- Activity 2016–2020
- 193
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 154
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 5
Activity trend (2017–2026)
- Scope
- CP Japan Patent Office · Japan
- Filing years
- 2017–2023
- 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 | 19 |
| 2018 | 35 |
| 2019 | 70 |
| 2020 | 40 |
| 2021 · preliminary | 22 |
| 2022 · preliminary | 16 |
| 2023 · 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 |
|---|---|---|
| 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 | 9.5% | 3.6× |
| Investigating or analysing materials by determining their chemical or physical propertiesIPC/CPC G01N | 8.8% | 1.7× |
| Specific therapeutic activity of chemical compounds or medicinal preparationsIPC/CPC A61P | 17.0% | 1.7× |
| PeptidesIPC/CPC C07K | 7.5% | 1.6× |
| Preparations for medical, dental or toiletry purposesIPC/CPC A61K | 18.8% | 1.5× |
Yearly counts for 2018–2022, added up: 441 of 669 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.
- Ashida & Kimura2,504 shared patent families
- Kita-Aoyama International Patent Attorneys弁理士法人北青山インターナショナル2,501 shared patent families
- Ohno Law Offices大野総合法律事務所2,529 shared patent families
- Kawaguchi International Patent Office川口 義雄2,539 shared patent families
- Sunnext International Patent Office弁理士法人サンネクスト国際特許事務所2,470 shared patent families
Compare CP Japan Patent Office side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for CP Japan 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.