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University · Hirosaki · Japan

Hirosaki University

In research, Hirosaki University stands highest in Physical Sciences (#3,197 of 12,888 worldwide), Medicine (#2,833 of 10,443 worldwide) and Health Sciences (#3,759 of 11,982 worldwide), 2022–2025. Relative to its size it is most specialised in Rheumatology — Rheumatology is 4.3× its share of world research.

hirosaki-u.ac.jpROR OpenAlex
World rank, 2022–2025
#4,947
of 28,054 · #3,793 all time
Rank in Japan
#112
of 1,070
Research works
14k
▲ 8% vs 2013–17
Citations
193k
13.9 per fractional work
Top-10% rate
9.0%
record average 16.5%
Open access
46%
world 28%

What is Hirosaki 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
Physical SciencesDomain #3,197 of 12,888 9.8%487 #3050
MedicineField #2,833 of 10,443 9.5%612 #2483
Health SciencesDomain #3,759 of 11,982 9.5%663 #3152
EngineeringField #3,520 of 6,636 10.5%176 #3312
Life SciencesDomain #4,188 of 7,800 7.1%293 #2324
SurgerySubfield #1,066 of 1,816 12.9%109 #1239
Social SciencesDomain #7,380 of 10,521 7.4%109 #9492
Biochemistry, Genetics and Molecular BiologyField #3,168 of 3,579 6.6%161 #2020
Agricultural and Biological SciencesField #3,212 of 3,409 9.1%68 #3497
Biomedical EngineeringSubfield #1,485 of 1,568 10.4%62 #1883

Each strip is that field’s whole ranked pool, with the notch where Hirosaki 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. Physical Sciences#3,050 #3,197
  2. Medicine#2,483 #2,833
  3. Health Sciences#3,152 #3,759
  4. Engineering#3,312 #3,520
  5. Life Sciences#2,324 #4,188
  6. Surgery#1,239 #1,066
  7. Social Sciences#9,492 #7,380
  8. Biochemistry, Genetics and Molecular Biology#2,020 #3,168
  9. Agricultural and Biological Sciences#3,497 #3,212
  10. Biomedical Engineering#1,883 #1,485
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 Hirosaki University specialise in?

Where its research is concentrated relative to its size: Rheumatology takes 4.3× the share of its output that it takes of world research.

  1. RheumatologySubfield · 30.5 works4.3×
← 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: 0.92× its world share, 68 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.95× its world share, 161 worksBiochemistry, Geneti…Immunology and Microbiology: 1.17× its world share, 18 worksImmunology and Micro…Neuroscience: 1.66× its world share, 42 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.72× its world share, 4 worksPharmacology, Toxico…Chemical Engineering: 1.54× its world share, 8 worksChemical EngineeringChemistry: 1.41× its world share, 34 worksChemistryComputer Science: 0.30× its world share, 36 worksComputer ScienceEarth and Planetary Sciences: 1.31× its world share, 32 worksEarth and Planetary …Energy: 1.08× its world share, 16 worksEnergyEngineering: 0.76× its world share, 176 worksEngineeringEnvironmental Science: 0.72× its world share, 55 worksEnvironmental ScienceMaterials Science: 1.05× its world share, 57 worksMaterials ScienceMathematics: 1.36× its world share, 25 worksMathematicsPhysics and Astronomy: 1.37× its world share, 47 worksPhysics and AstronomyDentistry: 0.82× its world share, 6 worksDentistryHealth Professions: 0.91× its world share, 37 worksHealth ProfessionsMedicine: 2.05× its world share, 612 worksMedicineNursing: 0.96× its world share, 7 worksNursingVeterinary: 0.55× its world share, 1 worksVeterinaryArts and Humanities: 0.13× its world share, 6 worksArts and HumanitiesBusiness, Management and Accounting: 0.09× its world share, 5 worksBusiness, Management…Decision Sciences: 0.14× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.22× its world share, 7 worksEconomics, Econometr…Psychology: 0.85× its world share, 40 worksPsychologySocial Sciences: 0.25× its world share, 49 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 2.0×. Every wedge is a field page.

Who are the top researchers at Hirosaki University?

Ranked on the composite score, Kazuaki Tanaka, Takayuki Morita and Ken Okumura lead among researchers whose main affiliation is Hirosaki University.

  1. 1 Kazuaki Tanaka Japan · #34,846 worldwide 602 citations · 43 works
  2. 2 Takayuki Morita Japan · #48,729 worldwide 292 citations · 57 works
  3. 3 Ken Okumura Japan · #63,656 worldwide 328 citations · 64 works
  4. 4 Ken Itoh Japan · #64,705 worldwide 399 citations · 58 works
  5. 5 Tadaatsu Imaizumi Japan · #69,948 worldwide 245 citations · 37 works
  6. 6 H. Maeda Japan · #72,813 worldwide 309 citations · 40 works
  7. 7 Kenichiro Asano Japan · #114,337 worldwide 148 citations · 31 works
  8. 8 Yuichi Tsumaki Japan · #123,487 worldwide 127 citations · 55 works
  9. 9 Sinzo Masaki Japan · #127,105 worldwide 398 citations · 23 works
  10. 10 Atsushi Matsubara Japan · #174,060 worldwide 176 citations · 22 works
All ranked researchers at Hirosaki University

Which keywords describe research at Hirosaki University?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Inflammation, Epidemiology, Immunotherapy, Radionuclides, Chemotherapy, Cancer, Oxidative Stress and Ionizing Radiation.

▲ 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. Epidemiology102▲ 1.66×100 topics
  2. Inflammation80▲ 2.5×71 topics
  3. Oxidative Stress45▲ 1.79×50 topics
  4. Cancer44▲ 2.1×45 topics
  5. Immunotherapy38▲ 3.4×18 topics
  6. Chemotherapy36▲ 3.3×22 topics
  7. Health Effects30▲ 3.2×14 topics
  8. Treatment30▲ 1.57×37 topics
  9. Diagnosis26▲ 1.77×33 topics
  10. Metabolic Syndrome25▲ 1.99×20 topics
  11. Radionuclides25▲ 42×2 topics
  12. Biomarkers24▲ 2.3×16 topics
  13. Neurological Disorders24▲ 2.7×15 topics
  14. Tumor Microenvironment23▲ 3.4×8 topics
  15. Neoadjuvant Therapy23▲ 6.2×5 topics
  16. Genetic Mutations22▲ 3.3×22 topics
  17. Complications21▲ 2.7×15 topics
  18. Guidelines21▲ 2.8×12 topics
  19. Ionizing Radiation20▲ 19×3 topics
  20. Radiotherapy20▲ 3.3×12 topics
  21. Prognosis17▲ 3.4×9 topics
  22. Lung Cancer17▲ 6.3×3 topics
  23. Biomechanics17▲ 3.5×11 topics
  24. Echocardiography16▲ 3.8×7 topics
  25. Parkinson's Disease16▲ 4.2×8 topics
  26. Molecular Characterization14▲ 5.2×6 topics
  27. Catheter Ablation14▲ 7.6×2 topics
  28. Revision Surgery14▲ 7.1×2 topics
  29. Total Hip Replacement14▲ 7.1×2 topics
  30. Exposure Pathways14▲ 21×2 topics
  31. Depleted Uranium13▲ 37×1 topic
  32. Radon13▲ 37×1 topic
  33. Arthroplasty13▲ 8.7×2 topics
  34. Osteoarthritis13▲ 6.4×4 topics
  35. Outcomes12▲ 9.4×2 topics
  36. Alignment12▲ 11×1 topic
  37. Total Knee Replacement12▲ 11×1 topic
  38. Fukushima Daiichi12▲ 49×1 topic
  39. Soil Contamination12▲ 30×2 topics
  40. nuclear accident12▲ 49×1 topic

Which research topics does Hirosaki University publish most on?

By volume in 2022–2025: Radioactivity and Radon Measurements, Total Knee Arthroplasty Outcomes, Radioactive contamination and transfer and Osteoarthritis Treatment and Mechanisms.

Radioactivity and Radon …13Radioactivity and Radon Measurements: 13 fractional worksTotal Knee Arthroplasty …12Total Knee Arthroplasty Outcomes: 12 fractional worksRadioactive contaminatio…12Radioactive contamination and transfer: 12 fractional worksOsteoarthritis Treatment…10Osteoarthritis Treatment and Mechanisms: 10 fractional worksKnee injuries and reconstruction techniques: 8 fractional worksPancreatic and Hepatic Oncology Research: 8 fractional worksGut microbiota and health8Gut microbiota and health: 8 fractional worksCardiac Arrhythmias and Treatments: 7 fractional worksElectrocatalysts for Energy Conversion: 7 fractional worksRadiation Dose and Imaging7Radiation Dose and Imaging: 7 fractional works
Radiological and Ultrasound TechnologySurgeryGlobal and Planetary ChangeRheumatology5 others

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

  1. 1 Radioactivity and Radon Measurements Radiological and Ultrasound Technology 13 works
  2. 2 Total Knee Arthroplasty Outcomes Surgery 12 works
  3. 3 Radioactive contamination and transfer Global and Planetary Change 12 works
  4. 4 Osteoarthritis Treatment and Mechanisms Rheumatology 10 works
  5. 5 Knee injuries and reconstruction techniques Surgery 8 works
  6. 6 Pancreatic and Hepatic Oncology Research Oncology 8 works
  7. 7 Gut microbiota and health Molecular Biology 8 works
  8. 8 Cardiac Arrhythmias and Treatments Cardiology and Cardiovascular Medicine 7 works
  9. 9 Electrocatalysts for Energy Conversion Renewable Energy, Sustainability and the Environment 7 works
  10. 10 Radiation Dose and Imaging Radiology, Nuclear Medicine and Imaging 7 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 available46.3%not open53.7%

World: 28% of research is openly available.

with international co-authors9.6%domestic only90.4%

World: 19% is written across borders.

How has Hirosaki University's research output changed?

Output in 2018–2022 was 8% 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 Hirosaki

All research institutions in Hirosaki

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.