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University · Tokyo · Japan

Rikkyo University

In research, Rikkyo University stands highest in Physical Sciences (#3,196 of 12,888 worldwide), Social Sciences (#3,426 of 10,521 worldwide) and Social Sciences (#3,177 of 6,365 worldwide), 2022–2025. Relative to its size it is most specialised in Nuclear and High Energy Physics and Astronomy and Astrophysics — Nuclear and High Energy Physics is 10.6× its share of world research.

rikkyo.ac.jpROR OpenAlex
World rank, 2022–2025
#4,841
of 28,054 · #4,258 all time
Rank in Japan
#106
of 1,070
Research works
4.5k
▲ 18% vs 2013–17
Citations
59k
13.1 per fractional work
Top-10% rate
15.6%
record average 16.5%
Open access
51%
world 28%

What is Rikkyo 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 #3,196 of 12,888 16.1%310 #2935
Social SciencesDomain #3,426 of 10,521 15.9%291 #3798
Social SciencesField #3,177 of 6,365 15.6%126 #3988
Physics and AstronomyField #1,377 of 1,646 28.3%86 #1703

Each strip is that field’s whole ranked pool, with the notch where Rikkyo 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#2,935 #3,196
  2. Social Sciences#3,798 #3,426
  3. Social Sciences#3,988 #3,177
  4. Physics and Astronomy#1,703 #1,377
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 Rikkyo University specialise in?

Where its research is concentrated relative to its size: Nuclear and High Energy Physics takes 10.6× the share of its output that it takes of world research.

  1. Nuclear and High Energy PhysicsSubfield · 23.2 works11×
  2. Astronomy and AstrophysicsSubfield · 37.3 works10×
← 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: 0.37× its world share, 12 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.84× its world share, 31 worksBiochemistry, Geneti…Immunology and Microbiology: 0.14× its world share, 1 worksImmunology and Micro…Neuroscience: 1.26× its world share, 14 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.49× its world share, 1 worksPharmacology, Toxico…Chemical Engineering: 1.38× its world share, 3 worksChemical EngineeringChemistry: 3.47× its world share, 38 worksChemistryComputer Science: 0.93× its world share, 50 worksComputer ScienceEarth and Planetary Sciences: 0.47× its world share, 5 worksEarth and Planetary …Energy: 0.36× its world share, 2 worksEnergyEngineering: 0.42× its world share, 44 worksEngineeringEnvironmental Science: 0.57× its world share, 20 worksEnvironmental ScienceMaterials Science: 1.18× its world share, 29 worksMaterials ScienceMathematics: 4.03× its world share, 33 worksMathematicsPhysics and Astronomy: 5.51× its world share, 86 worksPhysics and AstronomyDentistry: 0.15× its world share, 0 worksDentistryHealth Professions: 0.59× its world share, 11 worksHealth ProfessionsMedicine: 0.18× its world share, 24 worksMedicineNursing: 0.13× its world share, 0 worksNursingVeterinary: 0.51× its world share, 0 worksVeterinaryArts and Humanities: 2.54× its world share, 51 worksArts and HumanitiesBusiness, Management and Accounting: 1.68× its world share, 38 worksBusiness, Management…Decision Sciences: 1.25× its world share, 8 worksDecision SciencesEconomics, Econometrics and Finance: 1.80× its world share, 27 worksEconomics, Econometr…Psychology: 1.95× its world share, 41 worksPsychologySocial Sciences: 1.42× its world share, 126 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 5.5×. Every wedge is a field page.

Who are the top researchers at Rikkyo University?

Ranked on the composite score, Tetsuji Shioda, K. Ieki and Tsutomu Kobayashi lead among researchers whose main affiliation is Rikkyo University.

  1. 1 Tetsuji Shioda Japan · #78,885 worldwide 239 citations · 37 works
  2. 2 K. Ieki Japan · #202,369 worldwide 221 citations · 52 works
  3. 3 Tsutomu Kobayashi Japan · #204,398 worldwide 308 citations · 47 works
  4. 4 Makoto Sawada Japan · #240,282 worldwide 142 citations · 32 works
  5. 5 Shunji Kitamoto Japan · #240,569 worldwide 217 citations · 73 works
  6. 6 Tomohiro Harada Japan · #243,274 worldwide 456 citations · 66 works
  7. 7 E. Takeshita Japan · #266,485 worldwide 110 citations · 30 works
  8. 8 T. Motobayashi Japan · #288,354 worldwide 505 citations · 127 works
  9. 9 Mark E. Caprio Japan · #332,155 worldwide 10 citations · 32 works
  10. 10 Masahiro Yamanaka Japan · #351,461 worldwide 150 citations · 47 works
All ranked researchers at Rikkyo University

Which keywords describe research at Rikkyo University?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Globalization, Black Holes, Quantum Gravity, Supernovae, Language Teaching, String Theory, History and Catalysis.

▲ 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. Globalization40▲ 2.9×43 topics
  2. History18▲ 3.8×18 topics
  3. Catalysis18▲ 3.9×17 topics
  4. Black Holes18▲ 27×3 topics
  5. Identity17▲ 3.4×19 topics
  6. Quantum Gravity17▲ 30×3 topics
  7. Gender16▲ 4.3×17 topics
  8. Culture16▲ 4.2×10 topics
  9. Supernovae15▲ 27×2 topics
  10. Literature15▲ 4.0×10 topics
  11. Language Teaching15▲ 8.4×4 topics
  12. Colonialism14▲ 4.4×14 topics
  13. Economic Growth14▲ 2.4×17 topics
  14. String Theory13▲ 34×2 topics
  15. General Relativity13▲ 27×2 topics
  16. Higher Education13▲ 3.4×8 topics
  17. Quantum Entanglement13▲ 28×2 topics
  18. Corpus Linguistics13▲ 8.4×5 topics
  19. Field Theories13▲ 40×1 topic
  20. Holographic13▲ 40×1 topic
  21. Society13▲ 9.4×5 topics
  22. Corporate Governance13▲ 2.5×12 topics
  23. Cosmological Parameters13▲ 32×1 topic
  24. Dark Energy13▲ 28×1 topic
  25. Neoliberalism12▲ 4.9×9 topics
  26. Social Capital12▲ 3.2×11 topics
  27. Politics11▲ 5.9×6 topics
  28. Modernization11▲ 8.3×2 topics
  29. Social Interaction10▲ 3.6×11 topics
  30. Japan9▲ 62×1 topic
  31. Second Language Acquisition9▲ 15×2 topics
  32. Corrective Feedback9▲ 18×1 topic
  33. L2 Motivation9▲ 18×1 topic
  34. Multilingualism9▲ 7.5×4 topics
  35. Shareholder Value8▲ 11×3 topics
  36. Modular Forms8▲ 30×3 topics
  37. Gravitational Waves8▲ 20×2 topics
  38. Bilingual Education8▲ 9.4×2 topics
  39. Institutional Theory8▲ 12×3 topics
  40. Language Policy8▲ 7.9×2 topics

Which research topics does Rikkyo University publish most on?

By volume in 2022–2025: Black Holes and Theoretical Physics, Cosmology and Gravitation Theories, Japanese History and Culture and EFL/ESL Teaching and Learning.

Black Holes and Theoretical Physics: 13 fractional worksCosmology and Gravitation Theories: 13 fractional worksJapanese History and Cul…9Japanese History and Culture: 9 fractional worksEFL/ESL Teaching and Lea…9EFL/ESL Teaching and Learning: 9 fractional worksSecond Language Learning and Teaching: 6 fractional worksMigration, Ethnicity, and Economy: 6 fractional worksSecond Language Acquisit…6Second Language Acquisition and Learning: 6 fractional worksInternational Student and Expatriate Challenges: 5 fractional worksPulsars and Gravitational Waves Research: 5 fractional worksCorporate Social Responsibility Reporting: 4 fractional works
Nuclear and High Energy PhysicsAstronomy and AstrophysicsCultural StudiesLanguage and Linguistics5 others

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

  1. 1 Black Holes and Theoretical Physics Nuclear and High Energy Physics 13 works
  2. 2 Cosmology and Gravitation Theories Astronomy and Astrophysics 13 works
  3. 3 Japanese History and Culture Cultural Studies 9 works
  4. 4 EFL/ESL Teaching and Learning Language and Linguistics 9 works
  5. 5 Second Language Learning and Teaching Literature and Literary Theory 6 works
  6. 6 Migration, Ethnicity, and Economy Sociology and Political Science 6 works
  7. 7 Second Language Acquisition and Learning Developmental and Educational Psychology 6 works
  8. 8 International Student and Expatriate Challenges Communication 5 works
  9. 9 Pulsars and Gravitational Waves Research Astronomy and Astrophysics 5 works
  10. 10 Corporate Social Responsibility Reporting Strategy and Management 4 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 available50.7%not open49.3%

World: 28% of research is openly available.

with international co-authors13.1%domestic only86.9%

World: 19% is written across borders.

How has Rikkyo University's research output changed?

Output in 2018–2022 was 18% 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.