| Area | Discipline | Research Field | Item No. | #Entry |
| Comprehensive fields | Informatics | Fundamental theory of informatics | 1001 | 0 |
| Software | 1002 | 0 | ||
| Computer system/Network | 1003 | 0 | ||
| Media informatics/Database | 1004 | 0 | ||
| Intelligent informatics | 1005 | 0 | ||
| Perception information processing/Intelligent robotics | 1006 | 0 | ||
| Sensitivity informatics/Soft computing | 1007 | 0 | ||
| Library and information science/Humanistic social informatics | 1008 | 0 | ||
| Cognitive science | 1009 | 0 | ||
| Statistical science | 1010 | 0 | ||
| Bioinformatics/Life informatics | 1011 | 0 | ||
| Neuroscience | Neuroscience in general | 1101 | 0 | |
| Nerve anatomy/Genome science Neuropathology | 1102 | 0 | ||
| Neurochemistry/Neuropharmacology | 1103 | 0 | ||
| Neurophysiology and muscle physiology | 1104 | 0 | ||
| Laboratory animal science | Laboratory animal science | 1201 | 0 | |
| Biomedical engineering | Biomedical engineering/Biological material science | 1301 | 0 | |
| Medical systems | 1302 | 0 | ||
| Rehabilitation science/Welfare engineering | 1303 | 0 | ||
| Health/Sports science | Physical education | 1401 | 0 | |
| Sports science | 1402 | 0 | ||
| Applied health science | 1403 | 0 | ||
| Human life science | General human life sciences | 1501 | 0 | |
| Eating habits, studies on eating habits | 1502 | 0 | ||
| Science education/Educational technology | Science education | 1601 | 0 | |
| Educational technology | 1602 | 0 | ||
| Sociology/History of science and technology | Sociology/History of science and technology | 1701 | 0 | |
| Cultural property science | Cultural property science | 1801 | 0 | |
| Geography | Geography | 1901 | 0 | |
| New multidisciplinary fields | Environmental science | Environmental dynamic analysis | 2001 | 0 |
| Environmental impact assessment/Environmental policy | 2002 | 0 | ||
| Risk sciences of radiation/Chemicals | 2003 | 0 | ||
| Environmental technology/Environmental materials | 2004 | 0 | ||
| Nano/Micro science | Nanostructural science | 2101 | 0 | |
| Nanomaterials/Nanobioscience | 2102 | 0 | ||
| Microdevices/Nanodevices | 2103 | 0 | ||
| Social/Safety system science | Social systems engineering/Safety system | 2201 | 0 | |
| Natural disaster science | 2202 | 0 | ||
| Genome science | Basic genome science | 2301 | 0 | |
| Applied genomics | 2302 | 0 | ||
| Genome informatics | 2303 | 0 | ||
| Living organism molecular science | Living organism molecular science | 2401 | 0 | |
| Resource conservation science | Resource conservation science | 2501 | 0 | |
| Area studies | Area studies | 2601 | 0 | |
| Gender | Gender | 2701 | 0 | |
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| Area | Discipline | Research Field | Item No. | #Entry |
| Humanities | Philosophy | Philosophy/Ethics | 2801 | 0 |
| Chinese philosophy | 2802 | 0 | ||
| Indian philosophy/Buddhist studies | 2803 | 0 | ||
| Religious studies | 2804 | 0 | ||
| History of thought | 2805 | 0 | ||
| Aesthetics/Art history | 2806 | 0 | ||
| The arts | Study of the arts/History of the arts/Arts in general | 2851 | 0 | |
| Literature | Japanese literature | 2901 | 0 | |
| Literature in English | 2902 | 0 | ||
| European literature (English literature excluded) | 2903 | 0 | ||
| Literatures/Literary theories in other countries and areas | 2904 | 0 | ||
| Linguistics | Linguistics | 3001 | 0 | |
| Japanese linguistics | 3002 | 0 | ||
| English linguistics | 3003 | 0 | ||
| Japanese language education | 3004 | 0 | ||
| Foreign language education | 3005 | 0 | ||
| History | Historical studies in general | 3101 | 0 | |
| Japanese history | 3102 | 0 | ||
| Asian history | 3103 | 0 | ||
| History of Europe and America | 3104 | 0 | ||
| Archaeology | 3105 | 0 | ||
| Human geography | Human geography | 3201 | 0 | |
| Cultural anthropology | Cultural anthropology/Folklore | 3301 | 0 | |
| Social sciences | Law | Fundamental law | 3401 | 0 |
| Public law | 3402 | 0 | ||
| International law | 3403 | 0 | ||
| Social law | 3404 | 0 | ||
| Criminal law | 3405 | 0 | ||
| Civil law | 3406 | 0 | ||
| New fields of law | 3407 | 0 | ||
| Politics | Politics | 3501 | 0 | |
| International relations | 3502 | 0 | ||
| Economics | Economic theory | 3601 | 0 | |
| Economic doctrine/Economic thought | 3602 | 0 | ||
| Economic statistics | 3603 | 0 | ||
| Applied economics | 3604 | 0 | ||
| Economic policy | 3605 | 0 | ||
| Public finance/Monetary economics | 3606 | 0 | ||
| Economic history | 3607 | 0 | ||
| Business administration | Business administration | 3701 | 0 | |
| Commerce | 3702 | 0 | ||
| Accounting | 3703 | 0 | ||
| Sociology | Sociology | 3801 | 0 | |
| Social welfare and social work studies | 3802 | 0 | ||
| Psychology | Social psychology | 3901 | 0 | |
| Educational psychology | 3902 | 0 | ||
| Clinical psychology | 3903 | 0 | ||
| Experimental psychology | 3904 | 0 | ||
| Education | Education | 4001 | 0 | |
| Sociology of education | 4002 | 0 | ||
| Education on school subjects and activities | 4003 | 0 | ||
| Special needs education | 4004 | 0 | ||
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| Area | Discipline | Research Field | Item No. | #Entry |
| Mathematical and physical sciences | Mathematics | Algebra | 4101 | 0 |
| Geometry | 4102 | 0 | ||
| General mathematics (including Probability theory/Statistical mathematics) | 4103 | 0 | ||
| Basic analysis | 4104 | 0 | ||
| Global analysis | 4105 | 0 | ||
| Astronomy | Astronomy | 4201 | 0 | |
| Physics | Particle/Nuclear/Cosmic ray/Astro physics | 4301 | 1 | |
| Condensed matter physics I | 4302 | 0 | ||
| Condensed matter physics II | 4303 | 0 | ||
| Mathematical physics/Fundermental condensed matter physics | 4304 | 0 | ||
| Atomic/Molecular/Quantum electronics | 4305 | 1 | ||
| Biophysics/Chemical physics | 4306 | 0 | ||
| Earth and planetary science | Solid earth and planetary physics | 4401 | 0 | |
| Meteorology/Physical oceanography/Hydrology | 4402 | 0 | ||
| Space and upper atmospheric physics | 4403 | 0 | ||
| Geology | 4404 | 0 | ||
| Stratigraphy/Paleontology | 4405 | 0 | ||
| Petrology/Mineralogy/Science pf ore deposit | 4406 | 0 | ||
| Geochemistry/Astrochemistry | 4407 | 0 | ||
| Plasma science | Plasma science | 4501 | 0 | |
| Chemistry | Basic chemistry | Physical chemistry | 4601 | 0 |
| Organic chemistry | 4601 | 0 | ||
| Inorganic chemistry | 4601 | 0 | ||
| Applied Chemistry | Analytical chemistry | 4701 | 0 | |
| Synthetic chemistry | 4702 | 0 | ||
| Polymer chemistry | 4703 | 0 | ||
| Functional materials chemistry | 4704 | 0 | ||
| Environmental chemistry | 4705 | 0 | ||
| Chemistry related to living body | 4706 | 0 | ||
| Materials chemistry | Functional materials/Devices | 4801 | 0 | |
| Organic industrial materials | 4802 | 0 | ||
| Inorganic industrial materials | 4803 | 0 | ||
| Plymer/Textile materials | 4804 | 0 | ||
| Engineering | Applied physics | Applied materials science/Crystal engineering | 4901 | 0 |
| Thin film/Surface and interfacial physical properties | 4902 | 0 | ||
| Applied optics/Quantum optical engineering | 4903 | 0 | ||
| Applied physics, general | 4904 | 0 | ||
| Engineering fundamentals | 4905 | 0 | ||
| Mechanical engineering | Materials/Mechanics of materials | 5001 | 0 | |
| Production engineering/ Processing studies | 5002 | 0 | ||
| Design engineering/Machine functional elements/Tribology | 5003 | 0 | ||
| Fluid engineering | 5004 | 0 | ||
| Thermal engineering | 5005 | 0 | ||
| Dynamics/Control | 5006 | 0 | ||
| Intelligent mechanics/Mechanical systems | 5007 | 0 | ||
| Electrical and electronic engineering | Power engineering/Power conversion/Electric machinery | 5101 | 0 | |
| Electronic materials/Electric materials | 5102 | 0 | ||
| Electron device/Electronic equipment | 5103 | 0 | ||
| Communication/Network engineering | 5104 | 0 | ||
| System engineering | 5105 | 0 | ||
| Measurement engineering | 5106 | 0 | ||
| Control engineering | 5107 | 0 | ||
| Civil engineering | Civil engineering materials/Construction/Construction management | 5201 | 0 | |
| Structural engineering/Earthquake engineering/Maintenance management engineering | 5202 | 0 | ||
| Geotechnical engineering | 5203 | 0 | ||
| Hydraulic engineering | 5204 | 0 | ||
| Civil engineering project/Traffic engineering | 5205 | 0 | ||
| Civil and environmental engineering | 5206 | 0 | ||
| Architecture and building engineering | Building structures/materials | 5301 | 0 | |
| Architectural environment/equipment | 5302 | 0 | ||
| Town planning/Architectural planning | 5303 | 0 | ||
| Architectural history/design | 5304 | 0 | ||
| Material engineering | Physical properties of metals | 5401 | 0 | |
| Inorganic materials/Physical properties | 5402 | 0 | ||
| Composite materials/Physical properties | 5403 | 0 | ||
| Structural/Functional materials | 5404 | 0 | ||
| Material processing/treatments | 5405 | 0 | ||
| Metal making engineering | 5406 | 0 | ||
| Process engineering | Properties in chemical engineering process/Transfer operation/Unit operation | 5501 | 0 | |
| Reaction engineering/Process system | 5502 | 0 | ||
| Catalyst/Resource chemical process | 5503 | 0 | ||
| Biofunction/Bioprocess | 5504 | 0 | ||
| Integrated engineering | Aerospace engineering | 5601 | 0 | |
| Naval and maritime engineering | 5602 | 0 | ||
| Earth system and resources enginnering | 5603 | 0 | ||
| Recycling engineering | 5604 | 0 | ||
| Nuclear fusion studies | 5605 | 0 | ||
| Nuclear engineering | 5606 | 0 | ||
| Energy engineering | 5607 | 0 | ||
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| Area | Discipline | Research Field | Item No. | #Entry |
| Biology | Basic biology | Genetics/Genome dynamics | 5701 | 0 |
| Ecology/Environment | 5702 | 0 | ||
| Plant molecular biology/Plant physiology | 5703 | 0 | ||
| Morphology/Structure | 5704 | 0 | ||
| Animal physiology/Animal behavior | 5705 | 0 | ||
| Biodiversity/Systematics | 5706 | 0 | ||
| Biological science | Structural biochemistry | 5801 | 0 | |
| Functional biochemistry | 5802 | 0 | ||
| Biophysics | 5803 | 0 | ||
| Molecular biology | 5804 | 0 | ||
| Cell biology | 5805 | 0 | ||
| Developmental biology | 5806 | 0 | ||
| Evolutionary biology | 5807 | 0 | ||
| Anthropology | Physical anthropology | 5901 | 0 | |
| Applied anthropology | 5902 | 0 | ||
| Agricultural sciences | Agriculture | Breeding science | 6001 | 0 |
| Crop science/Weed science | 6002 | 0 | ||
| Horticulture/Landscape architecture | 6003 | 0 | ||
| Plant pathology | 6004 | 0 | ||
| Applied entomology | 6005 | 0 | ||
| Agricultural chemistry | Plant nutrition/Soil science | 6101 | 0 | |
| Applied microbiology | 6102 | 0 | ||
| Applied biochemistry | 6103 | 0 | ||
| Bioproduction chemistry/Bioorganic chemistry | 6104 | 0 | ||
| Food science | 6105 | 0 | ||
| Forestry | Forest science | 6201 | 0 | |
| Wood science | 6202 | 0 | ||
| Fisheries science | General fisheries | 6301 | 0 | |
| Fisheries chemistry | 6302 | 0 | ||
| Agro-economics | Agronomy | 6401 | 0 | |
| Agro-engineering | Irrigation, drainage and rural engineering/Rural planning | 6501 | 0 | |
| Agricultural environmental engineering | 6502 | 0 | ||
| Agricultural information engineering | 6503 | 0 | ||
| Zootechnical science/Veterinary medical science | Zootechnical science/Grassland science | 6601 | 0 | |
| Applied animal science | 6602 | 0 | ||
| Basic veterinary science/Basic zootechnical science | 6603 | 0 | ||
| Applied veterinary science | 6604 | 0 | ||
| Clinical veterinary science | 6605 | 0 | ||
| Boundary agriculture | Boundary agriculture | 6701 | 0 | |
| Applied molecular and cellular biology | 6702 | 0 | ||
| Medicine, dentistry, and pharmacy | Pharmacy | Chemical pharmacy | 6801 | 0 |
| Physical pharmacy | 6802 | 0 | ||
| Biological pharmacy | 6803 | 0 | ||
| Drug development chemistry | 6804 | 0 | ||
| Environmental pharmacy | 6805 | 0 | ||
| Medical pharmacy | 6806 | 0 | ||
| Basic medicine | General anatomy (including histology/embryology) | 6901 | 0 | |
| General physiology | 6902 | 0 | ||
| Environmental physiology (including physical medicine and nutritional physiology) | 6903 | 0 | ||
| General pharmacology | 6904 | 0 | ||
| General medical chemistry | 6905 | 0 | ||
| Pathological medical chemistry | 6906 | 0 | ||
| Human genetics | 6907 | 0 | ||
| Human pathology | 6908 | 0 | ||
| Experimental pathology | 6909 | 0 | ||
| Parasitology (including sanitary zoology) | 6910 | 0 | ||
| Bacteriology (including mycology) | 6911 | 0 | ||
| Virology | 6912 | 0 | ||
| Immunology | 6913 | 0 | ||
| Boundary medicine | Medical sociology | 7001 | 0 | |
| Applied pharmacology | 7002 | 0 | ||
| Laboratory medicine | 7003 | 0 | ||
| Society medicine | Hygiene | 7101 | 0 | |
| Public health/Health science | 7102 | 0 | ||
| Legal medicine | 7103 | 0 | ||
| Clinical internal medicine | General internal medicine (including psychosomatic medicine) | 7201 | 0 | |
| Gastroenterology | 7202 | 0 | ||
| Circulatory organs internal medicine | 7203 | 0 | ||
| Respiratory organ internal medicine | 7204 | 0 | ||
| Kidney internal medicine | 7205 | 0 | ||
| Neurology | 7206 | 0 | ||
| Metabolomics | 7207 | 0 | ||
| Endocrinology | 7208 | 0 | ||
| Hematology | 7209 | 0 | ||
| Collagenous pathology/Allergology | 7210 | 0 | ||
| Infectious disease medicine | 7211 | 0 | ||
| Pediatrics | 7212 | 0 | ||
| Embryonic/Neonatal medicine | 7213 | 0 | ||
| Dermatology | 7214 | 0 | ||
| Psychiatric science | 7215 | 0 | ||
| Radiation science | 7216 | 0 | ||
| Clinical surgery | General surgery | 7301 | 0 | |
| Digestive surgery | 7302 | 0 | ||
| Thoracic surgery | 7303 | 0 | ||
| Cerebral neurosurgery | 7304 | 0 | ||
| Orthopaedic surgery | 7305 | 0 | ||
| Anesthesiology/Resuscitation studies | 7306 | 0 | ||
| Urology | 7307 | 0 | ||
| Obstetrics and gynecology | 7308 | 0 | ||
| Otorhinolaryngology | 7309 | 0 | ||
| Ophthalmology | 7310 | 0 | ||
| Pediatric surgery | 7311 | 0 | ||
| Plastic surgery | 7312 | 0 | ||
| Emergency medicine | 7313 | 0 | ||
| Dentistry | Morphological basic dentistry | 7401 | 0 | |
| Functional basic dentistry | 7402 | 0 | ||
| Pathobiological dentistry/Dental radiology | 7403 | 0 | ||
| Conservative dentistry | 7404 | 0 | ||
| Prosthetic dentistry | 7405 | 0 | ||
| Dental engineering/Regenerative dentistry | 7406 | 0 | ||
| Surgical dentistry | 7407 | 0 | ||
| Orthodontic/Pediatric dentistry | 7408 | 0 | ||
| Periodontal dentistry | 7409 | 0 | ||
| Social dentistry | 7410 | 0 | ||
| Nursing | Fundamental nursing | 7501 | 0 | |
| Clinical nursing | 7502 | 0 | ||
| Lifelong developmental nursing | 7503 | 0 | ||
| Community health/Gerontological nurisng | 7504 | 0 | ||
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