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Company · Tokyo · Japan

Inpex (Japan)

In research, Inpex (Japan) stands highest in Physical Sciences (#5,660 of 10,670 worldwide) and Engineering (#5,611 of 5,901 worldwide), 2022-now. Relative to its size it is most specialised in Geophysics, Ocean Engineering and Earth and Planetary Sciences (Geophysics is 31.2× its share of world research).

inpex.co.jp/englishROR OpenAlex
World rank, 2022-now
#11,422
of 22,385 · #15,247 all time
Rank in Japan
#292
of 924
Research works
697
▲ 36% vs 2018-21
Citations
4.7k
6.8 per fractional work
Top-10% rate
4.1%
all institutions 10.0%
vs its own fields
0.97×
1.00× is exactly expected
Open access
38%
world 40%
International
27%
world 18%
Inpex (Japan)

What is Inpex (Japan) known for in research?

The fields where it stands highest, 2022-now, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #5,660 of 10,670 2.0%152 #7887
EngineeringField #5,611 of 5,901 1.6%65 #8585

Each strip is that field's whole ranked pool, with the notch where Inpex (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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does Inpex (Japan) work in?

In 2022-now, 73% of research at Inpex (Japan) is in Physical Sciences, 17% in Social Sciences. Its largest fields are Engineering (31%), Earth and Planetary Sciences (16%), Environmental Science (10%). It does 1.8× the world's share of Physical Sciences.

Physical Sciences: 167 fractional works · 73.1% of its workEngineering: 70 fractional works · 30.6% of its workOcean Engineering: 31 fractional works · 13.6% of its workMechanical Engineering: 15 fractional works · 6.4% of its workMechanics of Materials: 10 fractional works · 4.4% of its workCivil and Structural Engineering: 4 fractional works · 1.8% of its workBiomedical Engineering: 3 fractional works · 1.5% of its workElectrical and Electronic Engineering: 2 fractional works · 0.9% of its workAerospace Engineering: 2 fractional works · 0.7% of its workComputational Mechanics: 1 fractional works · 0.3% of its workBuilding and Construction: 1 fractional works · 0.3% of its workIndustrial and Manufacturing Engineering: 1 fractional works · 0.2% of its workAutomotive Engineering: 0 fractional works · 0.2% of its workControl and Systems Engineering: 0 fractional works · 0.2% of its workEarth and Planetary Sciences: 36 fractional works · 15.8% of its workGeophysics: 25 fractional works · 10.9% of its workGeology: 3 fractional works · 1.5% of its workOceanography: 2 fractional works · 1.0% of its workGeochemistry and Petrology: 2 fractional works · 0.8% of its workEarth-Surface Processes: 2 fractional works · 0.7% of its workAtmospheric Science: 1 fractional works · 0.5% of its workPaleontology: 1 fractional works · 0.4% of its workEnvironmental Science: 22 fractional works · 9.8% of its workEnvironmental Engineering: 7 fractional works · 3.0% of its workEnvironmental Chemistry: 4 fractional works · 1.9% of its workManagement, Monitoring, Policy and Law: 4 fractional works · 1.6% of its workGlobal and Planetary Change: 2 fractional works · 1.1% of its workPollution: 2 fractional works · 0.8% of its workEcology: 1 fractional works · 0.6% of its workHealth, Toxicology and Mutagenesis: 1 fractional works · 0.4% of its workWater Science and Technology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workComputer Science: 14 fractional works · 6.2% of its workInformation Systems: 4 fractional works · 1.7% of its workArtificial Intelligence: 4 fractional works · 1.6% of its workSignal Processing: 2 fractional works · 1.0% of its workComputer Vision and Pattern Recognition: 2 fractional works · 0.9% of its workComputer Networks and Communications: 2 fractional works · 0.7% of its workComputational Theory and Mathematics: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workMaterials Science: 12 fractional works · 5.3% of its workMaterials Chemistry: 8 fractional works · 3.6% of its workMetals and Alloys: 2 fractional works · 0.9% of its workPolymers and Plastics: 1 fractional works · 0.5% of its workSmaller subfields together: 1 fractional works · 0.4% of its workEnergy: 6 fractional works · 2.6% of its workRenewable Energy, Sustainability and the Environment: 5 fractional works · 2.2% of its workGeneral Energy: 1 fractional works · 0.4% of its workChemistry: 4 fractional works · 1.6% of its workAnalytical Chemistry: 3 fractional works · 1.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workChemical Engineering: 1 fractional works · 0.5% of its workMathematics: 1 fractional works · 0.4% of its workStatistics and Probability: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPhysics and Astronomy: 1 fractional works · 0.4% of its workAstronomy and Astrophysics: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workSocial Sciences: 38 fractional works · 16.8% of its workSocial Sciences: 18 fractional works · 7.9% of its workSociology and Political Science: 7 fractional works · 2.9% of its workEducation: 3 fractional works · 1.3% of its workCultural Studies: 2 fractional works · 0.9% of its workPolitical Science and International Relations: 2 fractional works · 0.7% of its workDemography: 1 fractional works · 0.4% of its workAnthropology: 1 fractional works · 0.3% of its workCommunication: 1 fractional works · 0.3% of its workGender Studies: 0 fractional works · 0.2% of its workSafety Research: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.6% of its workPsychology: 6 fractional works · 2.5% of its workApplied Psychology: 2 fractional works · 0.7% of its workSocial Psychology: 2 fractional works · 0.7% of its workClinical Psychology: 1 fractional works · 0.5% of its workExperimental and Cognitive Psychology: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workBusiness, Management and Accounting: 4 fractional works · 1.9% of its workStrategy and Management: 1 fractional works · 0.5% of its workAccounting: 1 fractional works · 0.4% of its workOrganizational Behavior and Human Resource Management: 1 fractional works · 0.4% of its workManagement Information Systems: 1 fractional works · 0.3% of its workManagement of Technology and Innovation: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.0% of its workArts and Humanities: 4 fractional works · 1.6% of its workPhilosophy: 1 fractional works · 0.4% of its workHistory: 1 fractional works · 0.3% of its workVisual Arts and Performing Arts: 1 fractional works · 0.3% of its workMusic: 1 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.4% of its workEconomics, Econometrics and Finance: 4 fractional works · 1.6% of its workEconomics and Econometrics: 3 fractional works · 1.3% of its workFinance: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workDecision Sciences: 3 fractional works · 1.3% of its workInformation Systems and Management: 2 fractional works · 0.9% of its workManagement Science and Operations Research: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workHealth Sciences: 14 fractional works · 6.0% of its workMedicine: 11 fractional works · 4.7% of its workOncology: 2 fractional works · 0.7% of its workSurgery: 1 fractional works · 0.5% of its workEpidemiology: 1 fractional works · 0.3% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 0.3% of its workPsychiatry and Mental health: 1 fractional works · 0.3% of its workPhysiology: 1 fractional works · 0.3% of its workCardiology and Cardiovascular Medicine: 1 fractional works · 0.3% of its workPulmonary and Respiratory Medicine: 1 fractional works · 0.2% of its workNeurology: 1 fractional works · 0.2% of its workPediatrics, Perinatology and Child Health: 1 fractional works · 0.2% of its workInfectious Diseases: 0 fractional works · 0.2% of its workSmaller subfields together: 3 fractional works · 1.2% of its workHealth Professions: 2 fractional works · 1.1% of its workGeneral Health Professions: 2 fractional works · 0.7% of its workSmaller subfields together: 1 fractional works · 0.4% of its workVeterinary: 0 fractional works · 0.1% of its workNursing: 0 fractional works · 0.1% of its workDentistry: 0 fractional works · 0.0% of its workLife Sciences: 9 fractional works · 4.1% of its workBiochemistry, Genetics and Molecular Biology: 5 fractional works · 2.0% of its workMolecular Biology: 3 fractional works · 1.2% of its workGenetics: 1 fractional works · 0.5% of its workSmaller subfields together: 1 fractional works · 0.4% of its workAgricultural and Biological Sciences: 2 fractional works · 1.0% of its workAgronomy and Crop Science: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.5% of its workNeuroscience: 2 fractional works · 0.8% of its workCognitive Neuroscience: 1 fractional works · 0.5% of its workSmaller subfields together: 1 fractional works · 0.3% of its workImmunology and Microbiology: 0 fractional works · 0.1% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.1% of its workALL ITS WORKInpex (Japan)228fractional works, 2022-now
Life Sciences4%Physical Sciences73%Health Sciences6%Social Sciences17%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 26 fields, with their numbers
    1. Engineering7030.6%
    2. Earth and Planetary Sciences3615.8%
    3. Environmental Science229.8%
    4. Computer Science146.2%
    5. Materials Science125.3%
    6. Energy62.6%
    7. Chemistry41.6%
    8. Chemical Engineering10.5%
    9. Mathematics10.4%
    10. Physics and Astronomy10.4%
    1. Social Sciences187.9%
    2. Psychology62.5%
    3. Business, Management and Accounting41.9%
    4. Arts and Humanities41.6%
    5. Economics, Econometrics and Finance41.6%
    6. Decision Sciences31.3%
    1. Medicine114.7%
    2. Health Professions21.1%
    3. Veterinary00.1%
    4. Nursing00.1%
    5. Dentistry00.0%
    1. Biochemistry, Genetics and Molecular Biology52.0%
    2. Agricultural and Biological Sciences21.0%
    3. Neuroscience20.8%
    4. Immunology and Microbiology00.1%
    5. Pharmacology, Toxicology and Pharmaceutics00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Inpex (Japan) specialise in?

Where its research is concentrated relative to its size: Geophysics takes 31.2× the share of its output that it takes of world research.

  1. GeophysicsSubfield · 24.9 works31×
  2. Ocean EngineeringSubfield · 31.1 works26×
  3. Earth and Planetary SciencesField · 35.9 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: 0.21× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.37× its world share, 5 worksBiochemistry, Geneti…Immunology and Microbiology: 0.15× its world share, 0 worksImmunology and Micro…Neuroscience: 0.49× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.41× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 1.39× its world share, 1 worksChemical EngineeringChemistry: 1.01× its world share, 4 worksChemistryComputer Science: 0.79× its world share, 14 worksComputer ScienceEarth and Planetary Sciences: 10.05× its world share, 36 worksEarth and Planetary …Energy: 2.86× its world share, 6 worksEnergyEngineering: 2.04× its world share, 70 worksEngineeringEnvironmental Science: 1.97× its world share, 22 worksEnvironmental ScienceMaterials Science: 1.52× its world share, 12 worksMaterials ScienceMathematics: 0.34× its world share, 1 worksMathematicsPhysics and Astronomy: 0.18× its world share, 1 worksPhysics and AstronomyDentistry: 0.10× its world share, 0 worksDentistryHealth Professions: 0.40× its world share, 2 worksHealth ProfessionsMedicine: 0.24× its world share, 11 worksMedicineNursing: 0.17× its world share, 0 worksNursingVeterinary: 0.75× its world share, 0 worksVeterinaryArts and Humanities: 0.55× its world share, 4 worksArts and HumanitiesBusiness, Management and Accounting: 0.59× its world share, 4 worksBusiness, Management…Decision Sciences: 1.35× its world share, 3 worksDecision SciencesEconomics, Econometrics and Finance: 0.74× its world share, 4 worksEconomics, Econometr…Psychology: 0.83× its world share, 6 worksPsychologySocial Sciences: 0.63× its world share, 18 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 10.1×. Every wedge is a field page.

All 26 fields, with their numbers
  1. Earth and Planetary Sciences10.05×36 works
  2. Energy2.86×6 works
  3. Engineering2.04×70 works
  4. Environmental Science1.97×22 works
  5. Materials Science1.52×12 works
  6. Chemical Engineering1.39×1 works
  7. Decision Sciences1.35×3 works
  8. Chemistry1.01×4 works
  9. Psychology0.83×6 works
  10. Computer Science0.79×14 works
  11. Veterinary0.75×0 works
  12. Economics, Econometrics and Finance0.74×4 works
  13. Social Sciences0.63×18 works
  14. Business, Management and Accounting0.59×4 works
  15. Arts and Humanities0.55×4 works
  16. Neuroscience0.49×2 works
  17. Pharmacology, Toxicology and Pharmaceutics0.41×0 works
  18. Health Professions0.40×2 works
  19. Biochemistry, Genetics and Molecular Biology0.37×5 works
  20. Mathematics0.34×1 works
  21. Medicine0.24×11 works
  22. Agricultural and Biological Sciences0.21×2 works
  23. Physics and Astronomy0.18×1 works
  24. Nursing0.17×0 works
  25. Immunology and Microbiology0.15×0 works
  26. Dentistry0.10×0 works

Who are the top researchers at Inpex (Japan)?

Ranked on the quality score, Jonathan C. Evenick, Haruo Maeda and Pierre Bettinelli lead among researchers whose main affiliation is Inpex (Japan).

  1. 1 Jonathan C. Evenick Japan · #2,443,117 worldwide 356 citations · 21 works
  2. 2 Haruo Maeda Japan · #3,482,343 worldwide 1.1k citations · 43 works
  3. 3 Pierre Bettinelli Japan · #3,587,387 worldwide 733 citations · 25 works
  4. 4 Masayuki Ikarashi Japan · #3,658,177 worldwide 584 citations · 26 works
  5. 5 Michinori Asaka Japan · #3,910,406 worldwide 141 citations · 25 works
  6. 6 Katsumo Takabayashi Japan · #4,279,364 worldwide 290 citations · 35 works
  7. 7 Ayano Yasui Japan · #4,694,328 worldwide 40 citations · 18 works
  8. 8 Takao Namba Japan · #4,888,385 worldwide 98 citations · 15 works
  9. 9 Masahiko Nomura Japan · #5,092,428 worldwide 62 citations · 19 works
  10. 10 Shuichi Kikuchi Japan · #5,115,223 worldwide 35 citations · 18 works
All ranked researchers at Inpex (Japan)

What are the most cited papers from Inpex (Japan)?

The most cited paper from Inpex (Japan) is "Efficient de novo assembly of highly heterozygous genomes from whole-genome shotgun short reads" (Rei Kajitani, Kouta Toshimoto, Hideki Noguchi et al., 2014), with 1,163 citations. Next come "LiDAR, UAV or compass-clinometer? Accuracy, coverage and the effects on structural models" (219) and "Bioelectrochemical Analyses of the Development of a Thermophilic Biocathode Catalyzing Electromethanogenesis" (166).

Most cited papers
#PaperReleasedCitations
1 Efficient de novo assembly of highly heterozygous genomes from whole-genome shotgun short reads Rei Kajitani, Kouta Toshimoto, Hideki Noguchi et al. · Genome Research Open access 22 Apr 2014 1,163
2 LiDAR, UAV or compass-clinometer? Accuracy, coverage and the effects on structural models Adam J. Cawood, Clare Elizabeth Bond, John Anthony Howell et al. · Journal of Structural Geology Open access 20 Apr 2017 219
3 Bioelectrochemical Analyses of the Development of a Thermophilic Biocathode Catalyzing Electromethanogenesis Qian Gang Fu, Yoshihiro Kuramochi, Naoya Fukushima et al. · Environmental Science & Technology 29 Dec 2014 166
4 Latest Paleocene benthic foraminiferal extinction and environmental changes at Tawanui, New Zealand Kunio Kaiho, Tetsuya Arinobu, Ryoshi Ishiwatari et al. · Paleoceanography Aug 1996 154
5 Fate of polycyclic aromatic hydrocarbons in controlled ecosystem enclosures Richard F. Lee, Wayne S. Gardner, Jack W. Anderson et al. · Environmental Science & Technology Jul 1978 152
All 60 most cited papers, with filters and sorting

Which keywords describe research at Inpex (Japan)?

By fractional works in 2022-now, weighted toward what it does more of than the world: CO2 Sequestration, Full-Waveform Tomography, Seismic Waveform Inversion, Hydraulic Fracturing, Fracture Propagation, Shale Gas Reservoirs, Ensemble Kalman Filter and Optimization.

▲ 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-now 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. CO2 Sequestration15▲ 34×3 topics
  2. Full-Waveform Tomography14▲ 142×1 topic
  3. Seismic Waveform Inversion14▲ 142×1 topic
  4. Hydraulic Fracturing12▲ 51×2 topics
  5. Fracture Propagation12▲ 85×1 topic
  6. Shale Gas Reservoirs12▲ 85×1 topic
  7. Climate Change11▲ 1.70×25 topics
  8. Nanoparticles10▲ 3.6×7 topics
  9. Sustainability10▲ 1.73×16 topics
  10. Ensemble Kalman Filter9▲ 40×1 topic
  11. Optimization9▲ 9.1×1 topic
  12. Rheological Properties9▲ 22×2 topics
  13. Vibration Analysis9▲ 15×2 topics
  14. Drilling Fluids9▲ 74×1 topic
  15. Shale Gas9▲ 33×2 topics
  16. Well Integrity9▲ 74×1 topic
  17. Pore Structure8▲ 30×2 topics
  18. Renewable Energy8▲ 2.5×14 topics
  19. Nanopores8▲ 38×2 topics
  20. Tomography8▲ 20×2 topics
  21. Seismic Noise8▲ 75×1 topic
  22. Surface Wave8▲ 75×1 topic
  23. Gas Permeability8▲ 37×1 topic
  24. Mudstones8▲ 48×1 topic
  25. Surfactants7▲ 30×3 topics
  26. Porous Media6▲ 21×2 topics
  27. Carbon Capture6▲ 57×2 topics
  28. Pore-scale Modeling6▲ 69×1 topic
  29. Reactive Transport6▲ 46×2 topics
  30. X-ray Computed Tomography6▲ 69×1 topic
  31. Geological Storage6▲ 81×1 topic
  32. Mineral Carbonation6▲ 81×1 topic
  33. Biodegradation6▲ 24×3 topics
  34. Corrosion Inhibitors5▲ 47×1 topic
  35. Metal Corrosion5▲ 47×1 topic
  36. Corrosion4▲ 15×4 topics
  37. Energy Transition4▲ 12×3 topics
  38. Plate Tectonics4▲ 11×3 topics
  39. EROI4▲ 52×1 topic
  40. Fossil Fuels4▲ 36×1 topic

Which research topics does Inpex (Japan) publish most on?

By volume in 2022-now: Seismic Imaging and Inversion Techniques, Hydraulic Fracturing and Reservoir Analysis, Reservoir Engineering and Simulation Methods and Drilling and Well Engineering.

Seismic Imaging and Inversion Techniques: 14 fractional worksHydraulic Fracturing and Reservoir Analysis: 12 fractional worksReservoir Engineering an…9Reservoir Engineering and Simulation Methods: 9 fractional worksDrilling and Well Engine…9Drilling and Well Engineering: 9 fractional worksSeismic Waves and Analysis: 8 fractional worksHydrocarbon exploration and reservoir analysis: 8 fractional worksEnhanced Oil Recovery Te…6Enhanced Oil Recovery Techniques: 6 fractional worksCO2 Sequestration and Geologic Interactions: 6 fractional worksCorrosion Behavior and Inhibition: 5 fractional worksGlobal Energy and Sustainability Research: 4 fractional works
GeophysicsMechanical EngineeringOcean EngineeringMechanics of Materials3 others

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

  1. 1 Seismic Imaging and Inversion Techniques Geophysics 14 works
  2. 2 Hydraulic Fracturing and Reservoir Analysis Mechanical Engineering 12 works
  3. 3 Reservoir Engineering and Simulation Methods Ocean Engineering 9 works
  4. 4 Drilling and Well Engineering Ocean Engineering 9 works
  5. 5 Seismic Waves and Analysis Geophysics 8 works
  6. 6 Hydrocarbon exploration and reservoir analysis Mechanics of Materials 8 works
  7. 7 Enhanced Oil Recovery Techniques Ocean Engineering 6 works
  8. 8 CO2 Sequestration and Geologic Interactions Environmental Engineering 6 works
  9. 9 Corrosion Behavior and Inhibition Materials Chemistry 5 works
  10. 10 Global Energy and Sustainability Research Renewable Energy, Sustainability and the Environment 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 available37.9%not open62.1%

World: 40% of research is openly available.

with international co-authors26.8%domestic only73.2%

World: 18% is written across borders.

How has Inpex (Japan)'s research output changed?

Output in 2022-2025 was 36% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Inpex (Japan) as a percentage of every work published that year, 0.00100% in 2024.

still counting0.00050%0.0010%0.0015%Inpex (Japan)0.00095% in 202519801990200020102020

Fractional works of Inpex (Japan) over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting5%10%15%all institutions10.0% in 2025Inpex (Japan)5.0% in 20252020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 7.8% in 2021.

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Inpex (Japan) on Science Explorer

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