Eiko Patent Office
弁理士法人栄光事務所
Public patent records for Eiko Patent Office, 1978–2024: 1,529 patent families shared with other firms for 128 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
- 1,529
- 1978–2024. One family can be counted more than once.
- Activity 2016–2020
- 343
- Distinct families per year, summed over the last five complete years. 2021 onward is still being published.
- Clients (applicants)
- 128
- Applicants named on these families, all recorded years. Not a full client list.
- Firms shown below
- 4
Activity trend (2017–2026)
- Scope
- Eiko Patent 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 | 20 |
| 2018 | 41 |
| 2019 | 91 |
| 2020 | 184 |
| 2021 · preliminary | 139 |
| 2022 · preliminary | 209 |
| 2023 · preliminary | 81 |
| 2024 · preliminary | 50 |
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 |
|---|---|---|
| Chemical composition of glasses, glazes or vitreous enamels; surface treatment of glass; surface treatment of fibres or filaments made from glass, minerals or slags; joining glass to glass or other materialsIPC/CPC C03C | 9.4% | 12.7× |
| Pictorial communication, e.g. televisionIPC/CPC H04N | 16.9% | 3.9× |
| Displaying; advertising; signs; labels or name-plates; sealsIPC/CPC G09F | 4.1% | 3.6× |
| Layered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, formIPC/CPC B32B | 11.7% | 3.6× |
| Non-metallic elements; compounds thereof; metalloids or compounds thereof not covered by subclass C01CIPC/CPC C01B | 4.8% | 3.1× |
Yearly counts for 2018–2022, added up: 733 of 912 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.
- Kiyohara International Patent1,532 shared patent families
- Toho International Patent & Law Office桐朋国際特許法律事務所1,534 shared patent families
- Takashima International Patent Office Tokyo1,500 shared patent families
- Precis International Patent Officeプレシオ国際特許事務所1,499 shared patent families
- Chuo International Patent Firm中央国際特許事務所1,495 shared patent families
Compare Eiko Patent Office side by side with
Explore the workspace profile
Open the app’s partner network, filing-year filters, and filing activity for Eiko 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.