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Company · Tokyo · Japan

Komatsu (Japan)

In research, Komatsu (Japan) stands highest in Physical Sciences (#7,805 of 12,888 worldwide), Health Sciences (#11,500 of 11,982 worldwide) and Medicine (#10,127 of 10,443 worldwide), 2022–2025.

komatsu.comROR OpenAlex
World rank, 2022–2025
#12,456
of 28,054 · #9,293 all time
Rank in Japan
#319
of 1,070
Research works
2k
▲ 13% vs 2013–17
Citations
28k
13.9 per fractional work
Top-10% rate
5.2%
record average 16.5%
Open access
43%
world 28%

What is Komatsu (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 #7,805 of 12,888 5.1%86 #6696
Health SciencesDomain #11,500 of 11,982 4.9%86 #10405
MedicineField #10,127 of 10,443 4.7%75 #8357

Each strip is that field’s whole ranked pool, with the notch where Komatsu (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).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Physical Sciences#6,696 #7,805
  2. Health Sciences#10,405 #11,500
  3. Medicine#8,357 #10,127
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

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: 0.48× its world share, 5 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.20× its world share, 14 worksBiochemistry, Geneti…Immunology and Microbiology: 1.05× its world share, 2 worksImmunology and Micro…Neuroscience: 1.61× its world share, 6 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.03× its world share, 1 worksPharmacology, Toxico…Chemical Engineering: 2.31× its world share, 2 worksChemical EngineeringChemistry: 1.32× its world share, 5 worksChemistryComputer Science: 0.50× its world share, 9 worksComputer ScienceEarth and Planetary Sciences: 0.21× its world share, 1 worksEarth and Planetary …Energy: 0.55× its world share, 1 worksEnergyEngineering: 1.70× its world share, 57 worksEngineeringEnvironmental Science: 0.45× its world share, 5 worksEnvironmental ScienceMaterials Science: 0.65× its world share, 5 worksMaterials ScienceMathematics: 0.51× its world share, 1 worksMathematicsPhysics and Astronomy: 0.12× its world share, 1 worksPhysics and AstronomyDentistry: 1.27× its world share, 1 worksDentistryHealth Professions: 1.34× its world share, 8 worksHealth ProfessionsMedicine: 1.74× its world share, 75 worksMedicineNursing: 1.33× its world share, 2 worksNursingVeterinary: 1.65× its world share, 0 worksVeterinaryArts and Humanities: 0.36× its world share, 2 worksArts and HumanitiesBusiness, Management and Accounting: 0.25× its world share, 2 worksBusiness, Management…Decision Sciences: 0.49× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.61× its world share, 3 worksEconomics, Econometr…Psychology: 0.74× its world share, 5 worksPsychologySocial Sciences: 0.36× its world share, 10 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Chemical Engineering, 2.3×. Every wedge is a field page.

Who are the top researchers at Komatsu (Japan)?

Ranked on the composite score, Kouji Kakizaki, Hiroaki Nakarai and Ulrich Hägele lead among researchers whose main affiliation is Komatsu (Japan).

  1. 1 Kouji Kakizaki Japan · #493,558 worldwide 44 citations · 26 works
  2. 2 Hiroaki Nakarai Japan · #630,025 worldwide 35 citations · 19 works
  3. 3 Ulrich Hägele Japan · #725,710 worldwide 0 citations · 19 works
  4. 4 Hiroto Nakano Japan · #767,386 worldwide 73 citations · 27 works
  5. 5 Hakaru Mizoguchi Japan · #783,960 worldwide 73 citations · 61 works
  6. 6 Shinobu Sakurada Japan · #1,025,157 worldwide 63 citations · 77 works
  7. 7 Tsukasa Sakurada Japan · #1,059,494 worldwide 53 citations · 55 works
  8. 8 Junichi Fujimoto Japan · #1,072,196 worldwide 18 citations · 17 works
  9. 9 Kensuke Kisara Japan · #1,072,573 worldwide 56 citations · 104 works
  10. 10 Shinji Nagai Japan · #1,124,045 worldwide 19 citations · 19 works
All ranked researchers at Komatsu (Japan)

Which keywords describe research at Komatsu (Japan)?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Simulation, Inflammation, Mechanical Properties, Treatment, Control, Actuators and Modeling.

▲ 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. Epidemiology17▲ 1.94×60 topics
  2. Inflammation9▲ 1.89×38 topics
  3. Treatment7▲ 2.5×24 topics
  4. Mechanical Properties7▲ 3.0×14 topics
  5. Cancer6▲ 1.89×22 topics
  6. Oxidative Stress6▲ 1.56×25 topics
  7. Diagnosis6▲ 2.6×22 topics
  8. Quality of Life5▲ 1.54×19 topics
  9. Chemotherapy4▲ 2.9×14 topics
  10. Simulation4▲ 7.6×6 topics
  11. Pathogenesis4▲ 3.6×13 topics
  12. Actuators4▲ 11×3 topics
  13. Control4▲ 13×3 topics
  14. Modeling4▲ 6.3×5 topics
  15. Microstructure4▲ 3.1×6 topics
  16. Prognostic Factors3▲ 3.5×10 topics
  17. Genetic Mutations3▲ 3.4×10 topics
  18. Adaptive3▲ 29×2 topics
  19. Complications3▲ 2.7×9 topics
  20. Neuroinflammation3▲ 4.9×6 topics
  21. Hydraulic Systems3▲ 23×1 topic
  22. Robust3▲ 33×1 topic
  23. Tool Wear3▲ 9.7×2 topics
  24. Grain Refinement3▲ 10×4 topics
  25. Immune System3▲ 5.0×4 topics
  26. Microstructural Evolution3▲ 8.1×4 topics
  27. Health-related Quality of Life3▲ 5.0×4 topics
  28. Glycosylation2▲ 9.2×2 topics
  29. Clinical Management2▲ 5.4×6 topics
  30. Adaptive Control2▲ 6.7×4 topics
  31. Glycans2▲ 27×1 topic
  32. Ischemic Stroke2▲ 5.8×2 topics
  33. Molecular Profiling2▲ 9.1×3 topics
  34. Mucins2▲ 27×1 topic
  35. Surface Roughness2▲ 6.7×3 topics
  36. Endoscopic Resection2▲ 8.5×2 topics
  37. Tribological Performance2▲ 15×2 topics
  38. Constitutive Modeling2▲ 12×2 topics
  39. High Temperature2▲ 11×2 topics
  40. Nanoindentation2▲ 13×1 topic

Which research topics does Komatsu (Japan) publish most on?

By volume in 2022–2025: Hydraulic and Pneumatic Systems, Glycosylation and Glycoproteins Research, Metal and Thin Film Mechanics and Metallurgy and Material Forming.

Hydraulic and Pneumatic …3Hydraulic and Pneumatic Systems: 3 fractional worksGlycosylation and Glycop…2Glycosylation and Glycoproteins Research: 2 fractional worksMetal and Thin Film Mech…2Metal and Thin Film Mechanics: 2 fractional worksMetallurgy and Material …2Metallurgy and Material Forming: 2 fractional worksAdvanced machining processes and optimization: 2 fractional worksAdvanced Surface Polishing Techniques: 1 fractional worksMicrostructure and Mecha…1Microstructure and Mechanical Properties of Steels: 1 fractional worksErgonomics and Musculoskeletal Disorders: 1 fractional worksSoil Mechanics and Vehicle Dynamics: 1 fractional worksTribology and Lubricatio…1Tribology and Lubrication Engineering: 1 fractional works
Mechanical EngineeringMolecular BiologyMechanics of MaterialsBiomedical Engineering2 others

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

  1. 1 Hydraulic and Pneumatic Systems Mechanical Engineering 3 works
  2. 2 Glycosylation and Glycoproteins Research Molecular Biology 2 works
  3. 3 Metal and Thin Film Mechanics Mechanics of Materials 2 works
  4. 4 Metallurgy and Material Forming Mechanics of Materials 2 works
  5. 5 Advanced machining processes and optimization Mechanical Engineering 2 works
  6. 6 Advanced Surface Polishing Techniques Biomedical Engineering 1 works
  7. 7 Microstructure and Mechanical Properties of Steels Mechanical Engineering 1 works
  8. 8 Ergonomics and Musculoskeletal Disorders Social Psychology 1 works
  9. 9 Soil Mechanics and Vehicle Dynamics Civil and Structural Engineering 1 works
  10. 10 Tribology and Lubrication Engineering Mechanical 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 available43.3%not open56.7%

World: 28% of research is openly available.

with international co-authors13.0%domestic only87.0%

World: 19% is written across borders.

How has Komatsu (Japan)'s research output changed?

Output in 2018–2022 was 13% 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 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.