Annual patents filed for energy storage technologies in Japan
Japan: Annual patents filed for energy storage technologies was 1,221 patents in 2024. ▲ Rising
Annual patents filed for energy storage technologies in Japan, 2000–2024
Source: IRENA - INSPIRE Platform (2025) – with major processing by Our World in Data. Measured in patents.
Analysis
In 2024, annual patents filed for energy storage technologies in Japan stood at 1,221 patents. That is the lowest value across all 25 years on record.
The figure is down 73.7% on the previous year and down 81.9% over ten years.
Over the whole period, annual patents filed for energy storage technologies in Japan peaked at 13,171 patents in 2022 and was at its lowest, 1,221 patents, in 2024.
Japan ranks 2nd of 55 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 25 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 4,007 patents | 3,423 patents | 4,658 patents | 10 |
| 2010s | 7,251 patents | 5,982 patents | 9,179 patents | 10 |
| 2020s | 7,949 patents | 1,221 patents | 13,171 patents | 5 |
Countries ranked near Japan
- 1 China 5,034 patents compare
- 3 United States 768 patents compare
- 4 Taiwan 235 patents compare
- 5 South Korea 155 patents compare
More energy & mining data for Japan
- Fuel imports 19.6% (2025)
- Ores and metals imports 7.0% (2025)
- Ores and metals exports 3.6% (2025)
- Gas production 22.04 terawatt-hours (2024)
- Fossil fuel production per person, by fuel 178.13 kilowatt-hours per person (2024)
- Fossil fuel production by fuel 22.04 terawatt-hours (2024)
- Gas production per person 178.13 kilowatt-hours per person (2024)
- Fuel exports 1.2% (2025)
- Electric power transmission and distribution losses 4.9% (2024)
- Share of dietary energy supply from carbohydrates vs. GDP per capita 55.1% (2022)
Frequently asked questions
- What is annual patents filed for energy storage technologies in Japan?
- Annual patents filed for energy storage technologies in Japan was 1,221 patents in 2024, according to IRENA - INSPIRE Platform (2025) – with major processing by Our World in Data.
- What is the highest annual patents filed for energy storage technologies recorded in Japan?
- The highest recorded value was 13,171 patents in 2022.
- What is the lowest annual patents filed for energy storage technologies recorded in Japan?
- The lowest recorded value was 1,221 patents in 2024.
- How does Japan rank for annual patents filed for energy storage technologies?
- Japan ranks 2nd out of 55 countries with data for 2024.
- Is annual patents filed for energy storage technologies rising or falling in Japan?
- Over the last ten years it is down 81.9%. The long-run trend across the full record is rising.
- Where does this Japan data come from?
- The figures come from IRENA - INSPIRE Platform (2025) – with major processing by Our World in Data, published as part of Annual patents filed for energy storage technologies. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 25 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Figures in recent years are subject to a time lag; submitted patents may not yet be reflected in the data.