Science Explorer Interactive view Map
Company · Brisbane · United States

Hitachi (United States)

In research, Hitachi (United States) stands highest in Physical Sciences (#11,339 of 21,541 worldwide) and Engineering (#7,955 of 11,412 worldwide), over all time. Relative to its size it is most specialised in Engineering — Engineering is 4.6× its share of world research.

hitachi.usROR OpenAlex
World rank, all time
#16,716
of 42,892
Rank in United States
#3,638
of 8,685
Research works
498
▲ 11% vs 2013–17
Citations
4.6k
9.2 per fractional work
Top-10% rate
5.5%
record average 16.5%
Open access
31%
world 28%

What is Hitachi (United States) known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Physical SciencesDomain #11,339 of 21,541 6.3%422
EngineeringField #7,955 of 11,412 6.6%279

Each strip is that field’s whole ranked pool, with the notch where Hitachi (United States) 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 Hitachi (United States) specialise in?

Where its research is concentrated relative to its size: Engineering takes 4.6× the share of its output that it takes of world research.

  1. EngineeringField · 32.0 works4.6×
← 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.

Biochemistry, Genetics and Molecular Biology: 0.04× its world share, 0 worksBiochemistry, Geneti…Neuroscience: 0.22× its world share, 0 worksNeuroscienceChemistry: 0.12× its world share, 0 worksChemistryComputer Science: 0.92× its world share, 3 worksComputer ScienceEnergy: 3.73× its world share, 2 worksEnergyEngineering: 4.63× its world share, 32 worksEngineeringEnvironmental Science: 0.34× its world share, 1 worksEnvironmental ScienceMaterials Science: 1.29× its world share, 2 worksMaterials SciencePhysics and Astronomy: 1.15× its world share, 1 worksPhysics and AstronomyHealth Professions: 0.71× its world share, 1 worksHealth ProfessionsMedicine: 0.10× its world share, 1 worksMedicineDecision Sciences: 3.24× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.25× its world share, 0 worksEconomics, Econometr…Psychology: 0.08× its world share, 0 worksPsychologySocial Sciences: 0.23× 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, 4.6×. Every wedge is a field page.

Who are the top researchers at Hitachi (United States)?

Ranked on the composite score, Masato Mitsuhashi and Todd E. Lizotte lead among researchers whose main affiliation is Hitachi (United States).

  1. 1 Masato Mitsuhashi United States · #503,941 worldwide 67 citations · 20 works
  2. 2 Todd E. Lizotte United States · #1,503,491 worldwide 5 citations · 20 works
All ranked researchers at Hitachi (United States)

Which keywords describe research at Hitachi (United States)?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Power Electronics, Renewable Energy, Smart Grid, Smart Grid Applications, Renewable Energy Integration, Voltage Control, Machine Learning and Distributed Generation.

▲ 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. Power Electronics7▲ 43×7 topics
  2. Renewable Energy5▲ 8.2×11 topics
  3. Machine Learning5▲ 3.5×13 topics
  4. Smart Grid5▲ 27×7 topics
  5. Smart Grid Applications4▲ 69×2 topics
  6. Renewable Energy Integration4▲ 24×4 topics
  7. Voltage Control4▲ 117×2 topics
  8. Distributed Generation3▲ 93×3 topics
  9. Fault Detection3▲ 46×3 topics
  10. Energy Storage Systems3▲ 44×2 topics
  11. Privacy3▲ 20×3 topics
  12. Security3▲ 8.9×3 topics
  13. Control Strategies2▲ 39×3 topics
  14. Distributed Power Generation2▲ 51×1 topic
  15. Microgrid Control2▲ 51×1 topic
  16. Cyber-Physical Systems2▲ 20×1 topic
  17. False Data Injection Attacks2▲ 98×1 topic
  18. Electric Vehicles2▲ 17×3 topics
  19. Thermal Management2▲ 14×3 topics
  20. HVDC Transmission2▲ 88×2 topics
  21. Optimization2▲ 9.6×3 topics
  22. Power Systems2▲ 41×2 topics
  23. Control Systems2▲ 22×2 topics
  24. Modular Multilevel Converters2▲ 121×1 topic
  25. Voltage Source Converters2▲ 121×1 topic
  26. Distribution Systems2▲ 112×1 topic
  27. Optimal Power Flow2▲ 112×1 topic
  28. Battery Management Systems2▲ 24×1 topic
  29. Lithium-ion Batteries2▲ 8.5×1 topic
  30. Phasor Measurement Units2▲ 144×1 topic
  31. Power System Stability2▲ 144×1 topic
  32. Smart Grids2▲ 97×2 topics
  33. Optimal Control2▲ 45×3 topics
  34. Thermal Analysis1▲ 23×3 topics
  35. Anomaly Detection1▲ 9.3×3 topics
  36. Game Theory1▲ 15×2 topics
  37. Grid-Connected Inverters1▲ 35×2 topics
  38. Demand Response1▲ 25×1 topic
  39. High-Speed Trains1▲ 37×3 topics
  40. Model Predictive Control1▲ 9.5×3 topics

Which research topics does Hitachi (United States) publish most on?

By volume in 2022–2025: Microgrid Control and Optimization, Smart Grid Security and Resilience, HVDC Systems and Fault Protection and Optimal Power Flow Distribution.

Microgrid Control and Op…2Microgrid Control and Optimization: 2 fractional worksSmart Grid Security and …2Smart Grid Security and Resilience: 2 fractional worksHVDC Systems and Fault P…2HVDC Systems and Fault Protection: 2 fractional worksOptimal Power Flow Distr…2Optimal Power Flow Distribution: 2 fractional worksPower System Optimization and Stability: 2 fractional worksAdvanced Battery Technologies Research: 2 fractional worksSmart Grid Energy Manage…1Smart Grid Energy Management: 1 fractional worksHigh voltage insulation and dielectric phenomena: 1 fractional worksRisk and Safety Analysis: 1 fractional worksPower Systems Fault Detection: 1 fractional works
Control and Systems EngineeringElectrical and Electronic EngineeringAutomotive EngineeringMaterials Chemistry1 others

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

  1. 1 Microgrid Control and Optimization Control and Systems Engineering 2 works
  2. 2 Smart Grid Security and Resilience Control and Systems Engineering 2 works
  3. 3 HVDC Systems and Fault Protection Electrical and Electronic Engineering 2 works
  4. 4 Optimal Power Flow Distribution Electrical and Electronic Engineering 2 works
  5. 5 Power System Optimization and Stability Electrical and Electronic Engineering 2 works
  6. 6 Advanced Battery Technologies Research Automotive Engineering 2 works
  7. 7 Smart Grid Energy Management Electrical and Electronic Engineering 1 works
  8. 8 High voltage insulation and dielectric phenomena Materials Chemistry 1 works
  9. 9 Risk and Safety Analysis Statistics, Probability and Uncertainty 1 works
  10. 10 Power Systems Fault Detection Control and Systems 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 available30.8%not open69.2%

World: 28% of research is openly available.

with international co-authors56.9%domestic only43.1%

World: 19% is written across borders.

How has Hitachi (United States)'s research output changed?

Output in 2018–2022 was 11% higher 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 Brisbane

All research institutions in Brisbane

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.