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Company · Tokyo · Japan

J-Power (Japan)

In research, J-Power (Japan) stands highest in Physical Sciences (#10,354 of 12,888 worldwide) and Engineering (#6,198 of 6,636 worldwide), 2022–2025. Relative to its size it is most specialised in Electrical and Electronic Engineering — Electrical and Electronic Engineering is 7.2× its share of world research.

jpower.co.jp/englishROR OpenAlex
World rank, 2022–2025
#20,753
of 28,054 · #10,786 all time
Rank in Japan
#607
of 1,070
Research works
1.4k
▼ 18% vs 2013–17
Citations
14k
9.6 per fractional work
Top-10% rate
6.9%
record average 16.5%
Open access
27%
world 28%

What is J-Power (Japan) known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #10,354 of 12,888 6.8%105 #6115
EngineeringField #6,198 of 6,636 4.6%70 #2805

Each strip is that field’s whole ranked pool, with the notch where J-Power (Japan) sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

What does J-Power (Japan) specialise in?

Where its research is concentrated relative to its size: Electrical and Electronic Engineering takes 7.2× the share of its output that it takes of world research.

  1. Electrical and Electronic EngineeringSubfield · 30.4 works7.2×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.19× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.29× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 0.07× its world share, 0 worksImmunology and Micro…Neuroscience: 0.31× its world share, 1 worksNeuroscienceChemical Engineering: 3.56× its world share, 2 worksChemical EngineeringChemistry: 0.41× its world share, 1 worksChemistryComputer Science: 0.99× its world share, 9 worksComputer ScienceEarth and Planetary Sciences: 2.03× its world share, 4 worksEarth and Planetary …Energy: 2.63× its world share, 3 worksEnergyEngineering: 3.97× its world share, 70 worksEngineeringEnvironmental Science: 1.68× its world share, 10 worksEnvironmental ScienceMaterials Science: 1.09× its world share, 4 worksMaterials ScienceMathematics: 0.48× its world share, 1 worksMathematicsPhysics and Astronomy: 0.96× its world share, 2 worksPhysics and AstronomyHealth Professions: 0.24× its world share, 1 worksHealth ProfessionsMedicine: 0.12× its world share, 3 worksMedicineNursing: 0.29× its world share, 0 worksNursingArts and Humanities: 0.10× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.59× its world share, 2 worksBusiness, Management…Decision Sciences: 0.34× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.04× its world share, 0 worksEconomics, Econometr…Psychology: 0.13× its world share, 0 worksPsychologySocial Sciences: 0.10× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Engineering, 4.0×. Every wedge is a field page.

Who are the top researchers at J-Power (Japan)?

Ranked on the composite score, Hidenobu Koide, Nobuhiro TSUDA and Yoshiaki ARIGA lead among researchers whose main affiliation is J-Power (Japan).

  1. 1 Hidenobu Koide Japan · #638,629 worldwide 81 citations · 15 works
  2. 2 Nobuhiro TSUDA Japan · #1,081,753 worldwide 30 citations · 15 works
  3. 3 Yoshiaki ARIGA Japan · #1,439,926 worldwide 8 citations · 21 works
All ranked researchers at J-Power (Japan)

Which keywords describe research at J-Power (Japan)?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Renewable Energy, Smart Grid, Energy Efficiency, Renewable Energy Integration, Power Electronics, Power System, Deep Learning and Thermal Management.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Renewable Energy14▲ 8.1×21 topics
  2. Smart Grid9▲ 19×9 topics
  3. Energy Efficiency7▲ 6.6×17 topics
  4. Deep Learning7▲ 1.80×23 topics
  5. Machine Learning6▲ 1.64×24 topics
  6. Renewable Energy Integration6▲ 15×5 topics
  7. Power Electronics6▲ 14×8 topics
  8. Power System4▲ 37×4 topics
  9. Energy Storage4▲ 4.8×8 topics
  10. Big Data4▲ 3.4×7 topics
  11. Thermal Management3▲ 8.1×5 topics
  12. Battery Technology3▲ 8.4×3 topics
  13. Thermal Conductivity3▲ 15×5 topics
  14. Cloud Computing3▲ 8.0×6 topics
  15. Lithium-ion Batteries3▲ 5.2×4 topics
  16. Electric Vehicles2▲ 7.3×3 topics
  17. Modeling2▲ 7.8×3 topics
  18. Optimization2▲ 4.2×6 topics
  19. Electric Vehicle Charging2▲ 22×2 topics
  20. Hydrogen-Oxygen Generators2▲ 194×1 topic
  21. Steam Generation2▲ 194×1 topic
  22. Energy Management2▲ 10×2 topics
  23. Grid Integration2▲ 17×3 topics
  24. Probabilistic Forecasting2▲ 9.0×2 topics
  25. Smart Grid Applications2▲ 14×2 topics
  26. Wind Power2▲ 19×3 topics
  27. Control Strategies2▲ 12×5 topics
  28. Integration2▲ 11×2 topics
  29. Sensor Networks2▲ 6.8×3 topics
  30. CIM XML2▲ 63×1 topic
  31. Common Information Model2▲ 63×1 topic
  32. HVDC Transmission2▲ 32×2 topics
  33. Power Systems2▲ 15×2 topics
  34. CO2 Sequestration2▲ 8.2×4 topics
  35. Corrosion2▲ 12×2 topics
  36. Decentralized Control2▲ 12×2 topics
  37. Electricity Price Forecasting2▲ 19×1 topic
  38. Energy Storage Systems2▲ 11×2 topics
  39. Load Forecasting2▲ 19×1 topic
  40. Voltage Control2▲ 21×2 topics

Which research topics does J-Power (Japan) publish most on?

By volume in 2022–2025: Advanced Power Generation Technologies, Power Systems and Technologies, Energy Load and Power Forecasting and Microgrid Control and Optimization.

Advanced Power Generatio…2Advanced Power Generation Technologies: 2 fractional worksPower Systems and Techno…2Power Systems and Technologies: 2 fractional worksEnergy Load and Power Forecasting: 2 fractional worksMicrogrid Control and Optimization: 2 fractional worksAdvanced DC-DC Converters: 1 fractional worksHigh voltage insulation and dielectric phenomena: 1 fractional worksAdvanced Battery Technologies Research: 1 fractional worksSmart Grid Energy Manage…1Smart Grid Energy Management: 1 fractional worksPower Line Communications and Noise: 1 fractional worksElectric Power System Optimization: 1 fractional works
Electrical and Electronic EngineeringControl and Systems EngineeringMaterials ChemistryAutomotive Engineering

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Advanced Power Generation Technologies Electrical and Electronic Engineering 2 works
  2. 2 Power Systems and Technologies Electrical and Electronic Engineering 2 works
  3. 3 Energy Load and Power Forecasting Electrical and Electronic Engineering 2 works
  4. 4 Microgrid Control and Optimization Control and Systems Engineering 2 works
  5. 5 Advanced DC-DC Converters Electrical and Electronic Engineering 1 works
  6. 6 High voltage insulation and dielectric phenomena Materials Chemistry 1 works
  7. 7 Advanced Battery Technologies Research Automotive Engineering 1 works
  8. 8 Smart Grid Energy Management Electrical and Electronic Engineering 1 works
  9. 9 Power Line Communications and Noise Electrical and Electronic Engineering 1 works
  10. 10 Electric Power System Optimization Electrical and Electronic Engineering 1 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available27.2%not open72.8%

World: 28% of research is openly available.

with international co-authors17.0%domestic only83.0%

World: 19% is written across borders.

How has J-Power (Japan)'s research output changed?

Output in 2018–2022 was 18% lower than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Tokyo

All research institutions in Tokyo

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.