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University · Tokyo · Japan

SHOWA Medical University

In research, SHOWA Medical University stands highest in Medicine (#1,437 of 10,443 worldwide), Health Sciences (#1,680 of 11,982 worldwide) and Life Sciences (#2,246 of 7,800 worldwide), 2022–2025. Relative to its size it is most specialised in Oral Surgery, Dentistry and Nephrology — Oral Surgery is 8.8× its share of world research.

showa-u.ac.jp/en/index.htmlROR OpenAlex
World rank, 2022–2025
#4,563
of 28,054 · #3,046 all time
Rank in Japan
#93
of 1,070
Research works
14k
▲ 12% vs 2013–17
Citations
233k
17.2 per fractional work
Top-10% rate
9.4%
record average 16.5%
Open access
49%
world 28%

What is SHOWA Medical 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
MedicineField #1,437 of 10,443 9.1%835 #1387
Health SciencesDomain #1,680 of 11,982 9.0%959 #1197
Life SciencesDomain #2,246 of 7,800 11.1%236 #1401
SurgerySubfield #982 of 1,816 9.6%129 #944
Biochemistry, Genetics and Molecular BiologyField #2,105 of 3,579 12.3%126 #1370
Pulmonary and Respiratory MedicineSubfield #878 of 1,144 9.3%91 #1073
Physical SciencesDomain #11,594 of 12,888 8.1%71 #7435
Molecular BiologySubfield #2,003 of 2,175 13.6%61 #1369
Cardiology and Cardiovascular MedicineSubfield #708 of 738 4.0%61 #1170

Each strip is that field’s whole ranked pool, with the notch where SHOWA Medical 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. Medicine#1,387 #1,437
  2. Health Sciences#1,197 #1,680
  3. Life Sciences#1,401 #2,246
  4. Surgery#944 #982
  5. Biochemistry, Genetics and Molecular Biology#1,370 #2,105
  6. Pulmonary and Respiratory Medicine#1,073 #878
  7. Physical Sciences#7,435 #11,594
  8. Molecular Biology#1,369 #2,003
  9. Cardiology and Cardiovascular Medicine#1,170 #708
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 SHOWA Medical University specialise in?

Where its research is concentrated relative to its size: Oral Surgery takes 8.8× the share of its output that it takes of world research.

  1. Oral SurgerySubfield · 22.2 works8.8×
  2. DentistryField · 53.9 works8.5×
  3. NephrologySubfield · 22.4 works7.9×
← 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, 12 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.80× its world share, 126 worksBiochemistry, Geneti…Immunology and Microbiology: 2.41× its world share, 32 worksImmunology and Micro…Neuroscience: 2.46× its world share, 52 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 3.20× its world share, 15 worksPharmacology, Toxico…Chemical Engineering: 0.24× its world share, 1 worksChemical EngineeringChemistry: 0.42× its world share, 9 worksChemistryComputer Science: 0.08× its world share, 8 worksComputer ScienceEarth and Planetary Sciences: 0.05× its world share, 1 worksEarth and Planetary …Energy: 0.08× its world share, 1 worksEnergyEngineering: 0.14× its world share, 27 worksEngineeringEnvironmental Science: 0.19× its world share, 12 worksEnvironmental ScienceMaterials Science: 0.08× its world share, 4 worksMaterials ScienceMathematics: 0.13× its world share, 2 worksMathematicsPhysics and Astronomy: 0.22× its world share, 6 worksPhysics and AstronomyDentistry: 8.50× its world share, 54 worksDentistryHealth Professions: 1.64× its world share, 57 worksHealth ProfessionsMedicine: 3.32× its world share, 835 worksMedicineNursing: 1.83× its world share, 12 worksNursingVeterinary: 0.87× its world share, 2 worksVeterinaryArts and Humanities: 0.10× its world share, 4 worksArts and HumanitiesBusiness, Management and Accounting: 0.03× its world share, 1 worksBusiness, Management…Decision Sciences: 0.06× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.12× its world share, 3 worksEconomics, Econometr…Psychology: 0.53× its world share, 21 worksPsychologySocial Sciences: 0.07× its world share, 12 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Dentistry, 8.5×. Every wedge is a field page.

Who are the top researchers at SHOWA Medical University?

Ranked on the composite score, Kenichi Saito, Tatsuo Suda and M Maeda lead among researchers whose main affiliation is SHOWA Medical University.

  1. 1 Kenichi Saito Japan · #7,692 worldwide 719 citations · 73 works
  2. 2 Tatsuo Suda Japan · #37,607 worldwide 372 citations · 47 works
  3. 3 M Maeda Japan · #97,095 worldwide 127 citations · 35 works
  4. 4 Tadao Akizawa Japan · #110,563 worldwide 271 citations · 70 works
  5. 5 Koukichi Matsumoto Japan · #115,836 worldwide 149 citations · 34 works
  6. 6 Haruhiro Inoue Japan · #116,257 worldwide 231 citations · 102 works
  7. 7 Mozammal Hossain Japan · #124,519 worldwide 157 citations · 29 works
  8. 8 Yasuharu Nakamura Japan · #127,178 worldwide 270 citations · 32 works
  9. 9 Yoshishige Yamada Japan · #159,233 worldwide 133 citations · 22 works
  10. 10 Hiroyuki Hayakawa Japan · #185,376 worldwide 177 citations · 28 works
All ranked researchers at SHOWA Medical University

Which keywords describe research at SHOWA Medical University?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Inflammation, Quality of Life, Treatment, Diagnosis, Chemotherapy, Oxidative Stress and Clinical Practice Guidelines.

▲ 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. Epidemiology155▲ 3.0×117 topics
  2. Inflammation109▲ 4.0×76 topics
  3. Quality of Life74▲ 3.9×44 topics
  4. Treatment63▲ 4.0×44 topics
  5. Oxidative Stress54▲ 2.5×55 topics
  6. Diagnosis49▲ 4.0×38 topics
  7. Chemotherapy42▲ 4.6×23 topics
  8. Cardiovascular Disease40▲ 2.8×35 topics
  9. Management40▲ 3.8×28 topics
  10. Cancer36▲ 2.1×51 topics
  11. Clinical Practice Guidelines35▲ 5.0×14 topics
  12. Neurological Disorders32▲ 4.2×19 topics
  13. Genetics31▲ 3.4×19 topics
  14. Surgical Management30▲ 5.6×18 topics
  15. Clinical Trials29▲ 3.4×19 topics
  16. Guidelines28▲ 4.7×13 topics
  17. Complications28▲ 4.3×17 topics
  18. Rehabilitation28▲ 5.4×11 topics
  19. Immunotherapy27▲ 2.9×18 topics
  20. Prognostic Factors27▲ 4.7×14 topics
  21. Diagnostic Criteria25▲ 8.6×10 topics
  22. Biomarkers23▲ 2.6×15 topics
  23. Mortality23▲ 3.1×11 topics
  24. Stroke22▲ 9.6×7 topics
  25. Chronic Kidney Disease22▲ 7.0×8 topics
  26. Heart Failure22▲ 3.8×12 topics
  27. Genetic Mutations22▲ 3.8×22 topics
  28. Tumor Microenvironment21▲ 3.6×8 topics
  29. Radiotherapy20▲ 4.1×13 topics
  30. Breast Cancer20▲ 6.4×10 topics
  31. Neoadjuvant Therapy20▲ 6.5×5 topics
  32. Elderly19▲ 5.9×5 topics
  33. Psychological Factors17▲ 6.0×6 topics
  34. Nutritional Support16▲ 13×3 topics
  35. Dysphagia15▲ 19×2 topics
  36. Catheter Ablation15▲ 9.3×2 topics
  37. Endoscopic Resection14▲ 11×2 topics
  38. Bone Regeneration14▲ 8.9×2 topics
  39. Aspiration Pneumonia14▲ 33×1 topic
  40. Swallowing14▲ 33×1 topic

Which research topics does SHOWA Medical University publish most on?

By volume in 2022–2025: Dysphagia Assessment and Management, Temporomandibular Joint Disorders, Dental Implant Techniques and Outcomes and Orthodontics and Dentofacial Orthopedics.

Dysphagia Assessment and…14Dysphagia Assessment and Management: 14 fractional worksTemporomandibular Joint …12Temporomandibular Joint Disorders: 12 fractional worksDental Implant Techniques and Outcomes: 11 fractional worksOrthodontics and Dentofacial Orthopedics: 9 fractional worksEsophageal and GI Pathology: 9 fractional worksAtrial Fibrillation Management and Outcomes: 8 fractional worksGastric Cancer Management and Outcomes: 8 fractional worksGastroesophageal reflux …8Gastroesophageal reflux and treatments: 8 fractional worksAsthma and respiratory diseases: 8 fractional worksCardiac Valve Diseases and Treatments: 8 fractional works
Speech and HearingComplementary and Manual TherapyOral SurgeryOrthodontics5 others

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

  1. 1 Dysphagia Assessment and Management Speech and Hearing 14 works
  2. 2 Temporomandibular Joint Disorders Complementary and Manual Therapy 12 works
  3. 3 Dental Implant Techniques and Outcomes Oral Surgery 11 works
  4. 4 Orthodontics and Dentofacial Orthopedics Orthodontics 9 works
  5. 5 Esophageal and GI Pathology Surgery 9 works
  6. 6 Atrial Fibrillation Management and Outcomes Cardiology and Cardiovascular Medicine 8 works
  7. 7 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 8 works
  8. 8 Gastroesophageal reflux and treatments Gastroenterology 8 works
  9. 9 Asthma and respiratory diseases Physiology 8 works
  10. 10 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 8 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 available48.6%not open51.4%

World: 28% of research is openly available.

with international co-authors8.4%domestic only91.6%

World: 19% is written across borders.

How has SHOWA Medical University's research output changed?

Output in 2018–2022 was 12% 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.