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Company · Tokyo · Japan

Seiko Holdings (Japan)

In research, Seiko Holdings (Japan) stands highest in Physical Sciences (#5,518 of 21,541 worldwide), Engineering (#4,637 of 11,412 worldwide) and Physics and Astronomy (#2,443 of 3,663 worldwide), over all time.

seiko.co.jpROR OpenAlex
World rank, 2022–2025
#25,845
of 28,054 · #9,412 all time
Rank in Japan
#923
of 1,070
Research works
1.4k
▼ 6% vs 2013–17
Citations
15k
10.7 per fractional work
Top-10% rate
3.6%
record average 16.5%
Open access
37%
world 28%

What is Seiko Holdings (Japan) known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Physical SciencesDomain #5,518 of 21,541 11.0%1,097
EngineeringField #4,637 of 11,412 11.4%662
Physics and AstronomyField #2,443 of 3,663 14.3%126
Electrical and Electronic EngineeringSubfield #3,026 of 4,248 13.7%238
Materials ScienceField #3,498 of 4,504 12.4%139
Biomedical EngineeringSubfield #2,705 of 2,931 11.4%131

Each strip is that field’s whole ranked pool, with the notch where Seiko Holdings (Japan) 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).

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: 0.80× its world share, 4 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.50× its world share, 3 worksBiochemistry, Geneti…Immunology and Microbiology: 0.08× its world share, 0 worksImmunology and Micro…Neuroscience: 0.42× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.68× its world share, 1 worksPharmacology, Toxico…Chemical Engineering: 0.73× its world share, 0 worksChemical EngineeringChemistry: 1.17× its world share, 2 worksChemistryComputer Science: 1.12× its world share, 9 worksComputer ScienceEarth and Planetary Sciences: 1.50× its world share, 2 worksEarth and Planetary …Energy: 0.44× its world share, 0 worksEnergyEngineering: 1.26× its world share, 18 worksEngineeringEnvironmental Science: 0.86× its world share, 4 worksEnvironmental ScienceMaterials Science: 1.70× its world share, 6 worksMaterials ScienceMathematics: 0.58× its world share, 1 worksMathematicsPhysics and Astronomy: 0.96× its world share, 2 worksPhysics and AstronomyDentistry: 0.87× its world share, 0 worksDentistryHealth Professions: 1.38× its world share, 4 worksHealth ProfessionsMedicine: 0.82× its world share, 16 worksMedicineNursing: 1.48× its world share, 1 worksNursingArts and Humanities: 1.53× its world share, 4 worksArts and HumanitiesBusiness, Management and Accounting: 0.94× its world share, 3 worksBusiness, Management…Decision Sciences: 0.74× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.32× its world share, 1 worksEconomics, Econometr…Psychology: 0.70× its world share, 2 worksPsychologySocial Sciences: 1.21× its world share, 15 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Materials Science, 1.7×. Every wedge is a field page.

Who are the top researchers at Seiko Holdings (Japan)?

Ranked on the composite score, Leo Eisner, Hiroshi Muramatsu and Tatsuaki Ataka lead among researchers whose main affiliation is Seiko Holdings (Japan).

  1. 1 Leo Eisner Japan · #168,860 worldwide 204 citations · 50 works
  2. 2 Hiroshi Muramatsu Japan · #267,165 worldwide 160 citations · 44 works
  3. 3 Tatsuaki Ataka Japan · #657,745 worldwide 64 citations · 16 works
  4. 4 Satoshi Inoue Japan · #812,727 worldwide 154 citations · 84 works
  5. 5 Satoshi Nakayama Japan · #940,272 worldwide 102 citations · 67 works
  6. 6 Kunio Nakajima Japan · #1,308,916 worldwide 21 citations · 49 works
  7. 7 Kunio Kusaka Japan · #1,366,892 worldwide 0 citations · 16 works
  8. 8 Daisuke Sawaki Japan · #1,400,118 worldwide 9 citations · 15 works
  9. 9 Chizuko Yamamoto Japan · #1,533,182 worldwide 1 citations · 22 works
  10. 10 T. Morooka Japan · #1,577,611 worldwide 9 citations · 15 works
All ranked researchers at Seiko Holdings (Japan)

Which keywords describe research at Seiko Holdings (Japan)?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Biomedical Applications, E-Learning, Silicon Photonics, Leadership Styles, Organizational Commitment, School Literacy Movement, Educational Technology and Ionic Liquids.

▲ 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. Biomedical Applications4▲ 3.0×14 topics
  2. E-Learning3▲ 2.9×7 topics
  3. Educational Technology3▲ 2.2×9 topics
  4. Education2▲ 1.43×15 topics
  5. Internet of Things2▲ 2.5×6 topics
  6. Nanocomposites2▲ 2.4×12 topics
  7. Community Empowerment2▲ 2.5×3 topics
  8. Digital Literacy2▲ 3.1×3 topics
  9. Media Literacy2▲ 3.3×3 topics
  10. Health Education2▲ 4.0×2 topics
  11. Ionic Liquids2▲ 5.7×4 topics
  12. Silicon Photonics2▲ 15×2 topics
  13. Information Literacy2▲ 5.6×1 topic
  14. Leadership Styles2▲ 8.8×2 topics
  15. Organizational Commitment2▲ 7.3×4 topics
  16. School Literacy Movement2▲ 6.9×1 topic
  17. Breastfeeding1▲ 5.7×2 topics
  18. Maternal Health1▲ 5.4×3 topics
  19. Child Nutrition1▲ 6.6×1 topic
  20. Christian Education1▲ 57×1 topic
  21. Church Leadership1▲ 57×1 topic
  22. Earthquake Detection1▲ 65×1 topic
  23. Microwave Photonics1▲ 15×2 topics
  24. Seismic Signals1▲ 65×1 topic
  25. Stunting1▲ 6.6×1 topic
  26. Tomography1▲ 7.0×3 topics
  27. Machine Vision1▲ 5.3×4 topics
  28. Microcavities1▲ 11×1 topic
  29. Optical Modulators1▲ 8.2×1 topic
  30. Plasmodiophora brassicae1▲ 56×1 topic
  31. Rhizoctonia solani1▲ 56×1 topic
  32. Digital Innovation1▲ 19×1 topic
  33. Environmental Sustainability1▲ 6.8×3 topics
  34. Lymphangiogenesis1▲ 67×1 topic
  35. Optical Access Networks1▲ 34×1 topic
  36. Photonic Signal Processing1▲ 34×1 topic
  37. Seismic Noise1▲ 23×1 topic
  38. Smart Library1▲ 28×1 topic
  39. Surface Wave1▲ 23×1 topic
  40. VEGF-C1▲ 67×1 topic

Which research topics does Seiko Holdings (Japan) publish most on?

By volume in 2022–2025: Educational Methods and Media Use, Contemporary Christian Leadership and Education, Public Health and Nutrition and Seismology and Earthquake Studies.

Educational Methods and …2Educational Methods and Media Use: 2 fractional worksContemporary Christian L…1Contemporary Christian Leadership and Education: 1 fractional worksPublic Health and Nutrition: 1 fractional worksSeismology and Earthquak…1Seismology and Earthquake Studies: 1 fractional worksPlant Disease Resistance…1Plant Disease Resistance and Genetics: 1 fractional worksPhotonic and Optical Devices: 1 fractional worksLymphatic System and Diseases: 1 fractional worksSeismic Waves and Analysis1Seismic Waves and Analysis: 1 fractional worksAdvanced Photonic Communication Systems: 1 fractional worksHealthcare during COVID-19 Pandemic: 1 fractional works
Information SystemsReligious studiesPediatrics, Perinatology and Child HealthArtificial Intelligence4 others

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

  1. 1 Educational Methods and Media Use Information Systems 2 works
  2. 2 Contemporary Christian Leadership and Education Religious studies 1 works
  3. 3 Public Health and Nutrition Pediatrics, Perinatology and Child Health 1 works
  4. 4 Seismology and Earthquake Studies Artificial Intelligence 1 works
  5. 5 Plant Disease Resistance and Genetics Plant Science 1 works
  6. 6 Photonic and Optical Devices Electrical and Electronic Engineering 1 works
  7. 7 Lymphatic System and Diseases Oncology 1 works
  8. 8 Seismic Waves and Analysis Geophysics 1 works
  9. 9 Advanced Photonic Communication Systems Electrical and Electronic Engineering 1 works
  10. 10 Healthcare during COVID-19 Pandemic Information Systems 1 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 available36.9%not open63.1%

World: 28% of research is openly available.

with international co-authors23.6%domestic only76.4%

World: 19% is written across borders.

How has Seiko Holdings (Japan)'s research output changed?

Output in 2018–2022 was 6% lower 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.