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University · Yamaguchi · Japan

Yamaguchi University

In research, Yamaguchi University stands highest in Life Sciences (#1,960 of 7,800 worldwide), Physical Sciences (#3,600 of 12,888 worldwide) and Medicine (#3,411 of 10,443 worldwide), 2022–2025. Relative to its size it is most specialised in Transportation and Aerospace Engineering — Transportation is 20.2× its share of world research.

yamaguchi-u.ac.jp/english.htmlROR OpenAlex
World rank, 2022–2025
#3,977
of 28,054 · #2,193 all time
Rank in Japan
#77
of 1,070
Research works
27k
◆ 0% vs 2013–17
Citations
359k
13.6 per fractional work
Top-10% rate
6.1%
record average 16.5%
Open access
43%
world 28%

What is Yamaguchi University 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
Life SciencesDomain #1,960 of 7,800 8.5%410 #1810
Physical SciencesDomain #3,600 of 12,888 4.6%1,138 #1625
MedicineField #3,411 of 10,443 7.9%688 #2738
Health SciencesDomain #4,170 of 11,982 7.8%731 #3231
EngineeringField #3,485 of 6,636 3.6%521 #1377
Social SciencesDomain #5,864 of 10,521 5.2%590 #7412
Computer ScienceField #2,962 of 4,667 5.6%225 #3226
Social SciencesField #4,589 of 6,365 2.7%451 #5081
NeuroscienceField #847 of 1,168 9.2%74 #1017
SurgerySubfield #1,345 of 1,816 6.5%117 #1167

Each strip is that field’s whole ranked pool, with the notch where Yamaguchi University 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. Life Sciences#1,810 #1,960
  2. Physical Sciences#1,625 #3,600
  3. Medicine#2,738 #3,411
  4. Health Sciences#3,231 #4,170
  5. Engineering#1,377 #3,485
  6. Social Sciences#7,412 #5,864
  7. Computer Science#3,226 #2,962
  8. Social Sciences#5,081 #4,589
  9. Neuroscience#1,017 #847
  10. Surgery#1,167 #1,345
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.

What does Yamaguchi University specialise in?

Where its research is concentrated relative to its size: Transportation takes 20.2× the share of its output that it takes of world research.

  1. TransportationSubfield · 193.2 works20×
  2. Aerospace EngineeringSubfield · 207.3 works6.2×
← 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: 0.57× its world share, 77 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.35× its world share, 206 worksBiochemistry, Geneti…Immunology and Microbiology: 1.41× its world share, 41 worksImmunology and Micro…Neuroscience: 1.59× its world share, 74 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.17× its world share, 12 worksPharmacology, Toxico…Chemical Engineering: 1.26× its world share, 13 worksChemical EngineeringChemistry: 1.29× its world share, 58 worksChemistryComputer Science: 1.01× its world share, 224 worksComputer ScienceEarth and Planetary Sciences: 0.88× its world share, 40 worksEarth and Planetary …Energy: 0.64× its world share, 17 worksEnergyEngineering: 1.21× its world share, 521 worksEngineeringEnvironmental Science: 0.65× its world share, 93 worksEnvironmental ScienceMaterials Science: 0.77× its world share, 78 worksMaterials ScienceMathematics: 1.49× its world share, 50 worksMathematicsPhysics and Astronomy: 0.69× its world share, 44 worksPhysics and AstronomyDentistry: 0.20× its world share, 3 worksDentistryHealth Professions: 0.27× its world share, 20 worksHealth ProfessionsMedicine: 1.25× its world share, 688 worksMedicineNursing: 0.55× its world share, 8 worksNursingVeterinary: 3.04× its world share, 12 worksVeterinaryArts and Humanities: 0.34× its world share, 28 worksArts and HumanitiesBusiness, Management and Accounting: 0.26× its world share, 24 worksBusiness, Management…Decision Sciences: 0.53× its world share, 15 worksDecision SciencesEconomics, Econometrics and Finance: 0.38× its world share, 23 worksEconomics, Econometr…Psychology: 0.55× its world share, 48 worksPsychologySocial Sciences: 1.24× its world share, 451 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Veterinary, 3.0×. Every wedge is a field page.

Who are the top researchers at Yamaguchi University?

Ranked on the composite score, Isao Sakaida, Naoyuki Yamada and Michiaki Koga lead among researchers whose main affiliation is Yamaguchi University.

  1. 1 Isao Sakaida Japan · #33,118 worldwide 479 citations · 87 works
  2. 2 Naoyuki Yamada Japan · #40,693 worldwide 295 citations · 45 works
  3. 3 Michiaki Koga Japan · #57,913 worldwide 250 citations · 46 works
  4. 4 Keisuke Hino Japan · #58,700 worldwide 308 citations · 31 works
  5. 5 Tadashi Kajii Japan · #63,603 worldwide 246 citations · 35 works
  6. 6 Yukio Nakata Japan · #77,763 worldwide 354 citations · 51 works
  7. 7 Hitoshi Araki Japan · #92,602 worldwide 277 citations · 59 works
  8. 8 Nobuaki Suzuki Japan · #94,776 worldwide 293 citations · 54 works
  9. 9 Yoshihisa Sakata Japan · #111,985 worldwide 580 citations · 38 works
  10. 10 Masaru Okuda Japan · #113,180 worldwide 207 citations · 44 works
All ranked researchers at Yamaguchi University

Which keywords describe research at Yamaguchi University?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Philosophy, History, Literature, Social Influence, Culture, Unmanned Aerial Vehicles, Science and Ethnicity.

▲ 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. Philosophy189▲ 15×7 topics
  2. History188▲ 9.4×7 topics
  3. Literature188▲ 12×7 topics
  4. Social Influence188▲ 30×3 topics
  5. Culture188▲ 12×5 topics
  6. Unmanned Aerial Vehicles188▲ 35×5 topics
  7. Science188▲ 26×4 topics
  8. Ethnicity187▲ 17×8 topics
  9. Modernization186▲ 35×2 topics
  10. Design186▲ 39×3 topics
  11. Strategic Planning186▲ 43×3 topics
  12. Economic Security186▲ 30×2 topics
  13. Legal Regulation186▲ 29×2 topics
  14. Air Force185▲ 53×1 topic
  15. Islam185▲ 31×1 topic
  16. Public Oversight185▲ 51×1 topic
  17. Sharia Law185▲ 45×1 topic
  18. Transport Policy185▲ 51×1 topic
  19. Warfare185▲ 53×1 topic
  20. Epidemiology120◆ 1.06×108 topics
  21. Deep Learning115▲ 1.17×68 topics
  22. Machine Learning89◆ 0.95×68 topics
  23. Inflammation74▲ 1.24×74 topics
  24. Oxidative Stress57▲ 1.22×54 topics
  25. Treatment52▲ 1.48×38 topics
  26. Diagnosis49▲ 1.85×34 topics
  27. Cancer44◆ 1.15×45 topics
  28. Immunotherapy42▲ 2.0×19 topics
  29. Chemotherapy40▲ 2.0×22 topics
  30. Management36▲ 1.59×27 topics
  31. Remote Sensing35◆ 0.99×27 topics
  32. Pathogenesis34▲ 2.4×22 topics
  33. Neurological Disorders30▲ 1.81×17 topics
  34. Prognosis27▲ 2.9×9 topics
  35. Tumor Microenvironment24▲ 1.86×8 topics
  36. IoT Security23▲ 2.5×3 topics
  37. Anomaly Detection20▲ 2.4×4 topics
  38. Stem Cells19▲ 2.6×13 topics
  39. Intrusion Detection15▲ 3.6×4 topics
  40. Intravenous Immunoglobulin14▲ 7.5×3 topics

Which research topics does Yamaguchi University publish most on?

By volume in 2022–2025: Linguistic, Cultural, and Literary Studies, Military Technology and Strategies, Legal and Regulatory Analysis and Network Security and Intrusion Detection.

Linguistic, Cultural, an…185Linguistic, Cultural, and Literary Studies: 185 fractional worksMilitary Technology and …185Military Technology and Strategies: 185 fractional worksLegal and Regulatory Ana…185Legal and Regulatory Analysis: 185 fractional worksNetwork Security and Intrusion Detection: 12 fractional worksUrban and spatial planning: 10 fractional worksAdvanced Malware Detection Techniques: 10 fractional worksPeripheral Neuropathies and Disorders: 9 fractional worksCancer Immunotherapy and Biomarkers: 7 fractional worksLung Cancer Diagnosis and Treatment: 7 fractional worksCardiac electrophysiology and arrhythmias: 6 fractional works
Sociology and Political ScienceAerospace EngineeringTransportationComputer Networks and Communications6 others

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

  1. 1 Linguistic, Cultural, and Literary Studies Sociology and Political Science 185 works
  2. 2 Military Technology and Strategies Aerospace Engineering 185 works
  3. 3 Legal and Regulatory Analysis Transportation 185 works
  4. 4 Network Security and Intrusion Detection Computer Networks and Communications 12 works
  5. 5 Urban and spatial planning Nature and Landscape Conservation 10 works
  6. 6 Advanced Malware Detection Techniques Signal Processing 10 works
  7. 7 Peripheral Neuropathies and Disorders Neurology 9 works
  8. 8 Cancer Immunotherapy and Biomarkers Oncology 7 works
  9. 9 Lung Cancer Diagnosis and Treatment Pulmonary and Respiratory Medicine 7 works
  10. 10 Cardiac electrophysiology and arrhythmias Cardiology and Cardiovascular Medicine 6 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 available42.6%not open57.4%

World: 28% of research is openly available.

with international co-authors8.7%domestic only91.3%

World: 19% is written across borders.

How has Yamaguchi University's research output changed?

Output in 2018–2022 was 0% 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 Yamaguchi

All research institutions in Yamaguchi

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.