RIKEN

理化学研究所

Japan

Time frame: 1 May 2025 - 30 April 2026

Profile

The Nature Index tracks primary research articles from 178 applied, health, natural and social sciences journals, across many different publishers, chosen by an independent group of researchers. The Nature Index provides absolute Count of primary research articles and fractional Share counts of author contribution to articles. The positions in the table below reflect RIKEN's position overall, domestically, within their sector, and in various subject areas based on their Share. Each position links to the corresponding table where RIKEN is listed.

Position by research output Share

Global Japan
Overall 168 6
Government 10 1

Position by research output Share in subject areas

Global Japan
Applied sciences 295 9
Health sciences 247 4
Natural sciences 107 6
Biological sciences 83 2
Chemistry 190 10
Earth & environmental sciences 682 23
Physical sciences 41 3
Social sciences 943 27

Research

RIKEN has the following research output in the current window (1 May 2025 - 30 April 2026) of the Nature Index. Click on Count to view a list of articles representing the corresponding Share value.

Overall research output

Count Share
Overall 705 153.33

Overall Count and Share for 'RIKEN' based on the 12-month time frame mentioned above.

View all articles

Research outputs by subject area

Note: Natural sciences includes biological sciences, chemistry, Earth & environmental sciences and physical sciences.
Subject Count Share
Applied sciences 82 19.00
Biological sciences 143 34.19
Chemistry 121 31.11
Earth & environmental sciences 8 1.84
Health sciences 98 21.01
Physical sciences 249 45.77
Social sciences 4 0.41

Note: Hover over the donut graph to view the Share for each subject.

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Leading research topics

In the Current Index (12-month rolling window), RIKEN published the most articles in these research topics. Learn more about Nature Research Intelligence Topics.

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Share output for the past 5 years

Subject area or journal group 2021 2022 2023 2024 2025
Overall 156 130 123 159 156
Applied sciences 20 16 14 23 20
Health sciences 24 19 24 24 23
Natural sciences 112 95 85 113 113
Biological sciences 31 28 25 33 31
Chemistry 33 18 20 31 32
Earth & environmental sciences 2 7 1 1 1
Physical sciences 46 42 38 47 49
Social sciences 0 0 0 0 1
Nature & Science 5 8 3 9 5

Institution benchmarking

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Collaboration

Nature Index collaborations highlight fruitful collaborations that lead to high quality research around the world. A collaboration can be between any two institutions or locations co-authoring at least one article in the journals tracked by the Nature Index. The collaboration score between two institutions is the sum of each of their Shares on the papers to which both have contributed. The table and charts below highlight the leading collaborators with RIKEN.

International vs domestic collaboration by Share

Type Percentage
International (102 institutions) 19.5%
Domestic (117 institutions) 80.5%

Note: Hover over the pie chart to view the Share for each collaboration type.

Note: Hover over the graph to view collaboration by percentage of Share.

Top 5 domestic collaborators with RIKEN by Share

Collaborating institutions

Note: Hover over the bars to view details about each institution's Share.

Collaborating Institution Collaborators' Share Collaboration Score
The University of Tokyo (UTokyo) 53.13 / 68.42 121.54
Kyoto University 17.31 / 20.10 37.41
The University of Osaka (UOsaka) 12.98 / 15.13 28.11
Institute of Science Tokyo (Science Tokyo) 12.92 / 14.96 27.88
Tohoku University 14.66 / 11.90 26.56

Top 5 international collaborators with RIKEN by Share

Collaborating institutions

Note: Hover over the bars to view details about each institution's Share.

Collaborating Institution Collaborators' Share Total Share
Chinese Academy of Sciences (CAS) 5.40 / 5.96 11.36
Helmholtz Association of German Research Centres 4.58 / 5.52 10.10
Max Planck Society 3.60 / 6.43 10.03
University of Michigan (U-M) 5.04 / 2.70 7.74
French National Centre for Scientific Research (CNRS) 3.34 / 3.62 6.96

Latest supplements

Nature Index 2026 Nanoscience and nanotechnology

From programmable RNA architectures to next-generation materials for energy and healthcare, researchers are harnessing the unusual properties of the nanoscale to tackle some of society's biggest challenges. This supplement explores the discoveries that are driving the field, the hurdles that remain and the institutions that are leading in nanoscience and nanotechnology research.

Nature Index 2026 Nanoscience and nanotechnology
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Nature Index 2026 Chemistry

Chemistry research is undergoing a period of transformation, driven by new technologies and mounting environmental pressures. In this supplement, we explore the trends behind China’s extraordinary rise in chemistry output, and why efforts to curb the use of PFASs are accelerating worldwide. We also look at the innovations that could redefine how chemicals are designed, produced and recycled.

Nature Index 2026 Chemistry
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Relationships

Affiliated institutions

The following affiliated institutions are wholly owned, operated, administered or contains research facilities for RIKEN. All affiliations for an affiliated institution are credited to the institution to which it is affiliated. Each of the affiliated institutions listed below has its own research profile.

Affiliated joint institutions and consortia

Represents joint institutions and consortia for which the institution is designated as a partner institution. Each partner institution of a joint institution or consortium receives an equivalent Share for every affiliation in which the consortium is included.