Question 1

How strong is science in Japan?

Accepted Answer

Japan ranks #16 of 189 countries on research quality in 2022-now (#17 all time), with 558k research works and 6.0% of them in the world's top 10%.

Question 2

What is Japan strongest at in science?

Accepted Answer

On research quality in 2022-now, Japan ranks highest in Medicine (#18 of 152), Engineering (#16 of 131) and Atomic and Molecular Physics, and Optics (#7 of 57). Relative to its size it is most specialised in Condensed Matter Physics, Structural Biology and Gastroenterology.

Question 3

Which universities in Japan lead research?

Accepted Answer

The University of Tokyo, Kyoto University and RIKEN rank highest in Japan on research quality in 2022-now.

Question 4

Who are the top researchers in Japan?

Accepted Answer

Md. Rabiul Awual, Ayyoob Sharifi and A. S. Bell rank highest among researchers based in Japan.

Question 5

Which cities in Japan are research hubs?

Accepted Answer

By research output, Tokyo, Osaka, Kyoto and Nagoya.

Question 6

How much of Japan's research is open access?

Accepted Answer

42% of its research is openly available (world: 40%), and 12% is written with international co-authors (world: 18%).

Question 7

Is Japan's research output growing?

Accepted Answer

Output in 2022-2025 was 5% lower than in 2018-2021.

Question 8

Which keywords describe research in Japan?

Accepted Answer

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Inflammation, Chemotherapy, Treatment, Deep Learning, Diagnosis, Immunotherapy and Clinical Practice Guidelines.

Question 9

Which fields of science does Japan work in?

Accepted Answer

In 2022-now, 42% of research in Japan is in Physical Sciences, 33% in Health Sciences. Its largest fields are Medicine (30%), Engineering (16%), Biochemistry, Genetics and Molecular Biology (7%). It does 1.4× the world's share of Health Sciences.

Question 10

Which countries have research most like Japan's?

Accepted Answer

South Korea has the research profile closest to Japan's (similarity 0.81 on a scale to 1), with both strong in Materials Science, followed by Taiwan and Iran.