KDDI (Japan)
In research, KDDI (Japan) stands highest in Physical Sciences (#7,764 of 21,541 worldwide), Engineering (#4,362 of 11,412 worldwide) and Electrical and Electronic Engineering (#2,415 of 4,248 worldwide), over all time.
- World rank, 2022–2025
- #27,270 of 28,054 · #13,570 all time
- Rank in Japan
- #1,031 of 1,070
- Research works
- 843 ▼ 64% vs 2013–17
- Citations
- 5.4k 6.4 per fractional work
- Top-10% rate
- 5.6% record average 16.5%
- Open access
- 27% world 28%
What is KDDI (Japan) known for in research?
The fields where it stands highest, over all time, ranked among every institution above the floor in each field.
| Field | World rank | Where that sits | Top-10% rate | Works |
|---|---|---|---|---|
| Physical SciencesDomain | #7,764 of 21,541 | 12.0% | 723 | |
| EngineeringField | #4,362 of 11,412 | 12.9% | 348 | |
| Electrical and Electronic EngineeringSubfield | #2,415 of 4,248 | 12.8% | 227 | |
| Computer ScienceField | #4,532 of 7,020 | 10.2% | 327 | |
| Computer Networks and CommunicationsSubfield | #1,748 of 1,873 | 9.9% | 137 |
Each strip is that field’s whole ranked pool, with the notch where KDDI (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.
Rings at 0.5×, 1× and 2×. Widest outward: Computer Science, 2.4×. Every wedge is a field page.
- Computer Science 2.4×
- Engineering 2.3×
- Decision Sciences 2.3×
- Social Sciences 1.2×
- Pharmacology, Toxicology and Pharmaceutics 1.1×
- Economics, Econometrics and Finance 1.1×
- Materials Science 1.0×
- Health Professions 0.8×
- Dentistry 0.7×
- Agricultural and Biological Sciences 0.6×
- Neuroscience 0.6×
- Earth and Planetary Sciences 0.6×
- Business, Management and Accounting 0.5×
- Psychology 0.5×
- Chemistry 0.5×
- Environmental Science 0.4×
- Physics and Astronomy 0.4×
- Medicine 0.4×
- Energy 0.3×
- Arts and Humanities 0.2×
- Biochemistry, Genetics and Molecular Biology 0.2×
- Immunology and Microbiology 0.1×
Who are the top researchers at KDDI (Japan)?
Ranked on the composite score, 幸一 高木, 整 内藤 and 淳 小池 lead among researchers whose main affiliation is KDDI (Japan).
- 1 幸一 高木 Japan · #333,145 worldwide 0 citations · 28 works
- 2 整 内藤 Japan · #341,007 worldwide 1 citations · 75 works
- 3 淳 小池 Japan · #382,496 worldwide 1 citations · 72 works
- 4 秀樹 国分 Japan · #721,684 worldwide 0 citations · 17 works
- 5 M. Usami Japan · #740,182 worldwide 62 citations · 46 works
- 6 Y. Hirata Japan · #908,626 worldwide 22 citations · 18 works
- 7 Hiroki Horiuchi Japan · #1,185,740 worldwide 4 citations · 19 works
- 8 Atsushi Koike Japan · #1,210,026 worldwide 29 citations · 79 works
- 9 K. Mochizuki Japan · #1,281,345 worldwide 31 citations · 42 works
- 10 Toshiaki Tanaka Japan · #1,297,559 worldwide 27 citations · 25 works
Which keywords describe research at KDDI (Japan)?
By fractional works in 2022–2025, weighted toward what it does more of than the world: Deep Learning, Passive Systems, Thermal-Hydraulic Analysis, Molten Salt, Nuclear Reactor, Energy Efficiency, Language Teaching and Tourism Development.
- Urban Traffic
- Security Analysis
- Data Mining
- Time Series Analysis
- Photonic Signal Processing
- Online Learning
- Smart Cities
- Microwave Photonics
- Massive MIMO
- Wireless Networks
- Internet of Things
- Economic Development
- 5G Networks
- Pedagogy
- Tourism Development
- Language Teaching
- Nuclear Reactor
- Machine Learning
- Energy Efficiency
- Passive Systems
- Deep Learning
- Thermal-Hydraulic Analysis
- Neural Networks
- Molten Salt
- Sustainability
- Renewable Energy
- IoT Security
- Teaching Methods
- Accident Tolerant Fuels
- Fuel Cladding
- Digital Learning
- Intelligent Transportation Systems
- Wireless Sensor Networks
- Probabilistic Forecasting
- Healthcare
- Optical Access Networks
- Short-Term Forecasting
- Cybersecurity
- Globalization
- Vulnerability
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
- Deep Learning6▲ 2.6×25 topics
- Passive Systems3▲ 306×1 topic
- Thermal-Hydraulic Analysis3▲ 306×1 topic
- Energy Efficiency3▲ 4.4×11 topics
- Neural Networks3▲ 2.6×13 topics
- Machine Learning3◆ 1.11×11 topics
- Molten Salt2▲ 106×1 topic
- Nuclear Reactor2▲ 106×1 topic
- Sustainability2▲ 1.39×10 topics
- Language Teaching2▲ 12×2 topics
- Renewable Energy2▲ 1.84×8 topics
- Tourism Development2▲ 22×2 topics
- IoT Security2▲ 8.1×3 topics
- Pedagogy2▲ 5.2×1 topic
- Teaching Methods2▲ 18×1 topic
- 5G Networks2▲ 11×3 topics
- Accident Tolerant Fuels2▲ 60×1 topic
- Economic Development2▲ 2.8×3 topics
- Fuel Cladding2▲ 60×1 topic
- Internet of Things2▲ 2.7×6 topics
- Digital Learning2▲ 4.0×3 topics
- Wireless Networks2▲ 14×6 topics
- Intelligent Transportation Systems1▲ 13×2 topics
- Massive MIMO1▲ 25×2 topics
- Wireless Sensor Networks1▲ 4.3×6 topics
- Microwave Photonics1▲ 21×2 topics
- Probabilistic Forecasting1▲ 9.7×3 topics
- Smart Cities1▲ 7.1×3 topics
- Healthcare1▲ 1.48×2 topics
- Online Learning1▲ 1.99×3 topics
- Optical Access Networks1▲ 51×1 topic
- Photonic Signal Processing1▲ 51×1 topic
- Short-Term Forecasting1▲ 12×2 topics
- Time Series Analysis1▲ 9.7×2 topics
- Cybersecurity1▲ 6.6×2 topics
- Data Mining1▲ 2.1×3 topics
- Globalization1▼ 0.81×2 topics
- Security Analysis1▲ 8.7×4 topics
- Vulnerability1▲ 7.2×2 topics
- Urban Traffic1▲ 12×2 topics
Which research topics does KDDI (Japan) publish most on?
By volume in 2022–2025: Nuclear Engineering Thermal-Hydraulics, Nuclear reactor physics and engineering, Education, Innovation and Language Studies and Nuclear Materials and Properties.
Area is fractional works; colour is the subfield each topic belongs to.
- 1 Nuclear Engineering Thermal-Hydraulics Aerospace Engineering 3 works
- 2 Nuclear reactor physics and engineering Aerospace Engineering 2 works
- 3 Education, Innovation and Language Studies Education 2 works
- 4 Nuclear Materials and Properties Materials Chemistry 2 works
- 5 Advanced Photonic Communication Systems Electrical and Electronic Engineering 1 works
- 6 Human Mobility and Location-Based Analysis Transportation 1 works
- 7 Traffic Prediction and Management Techniques Building and Construction 1 works
- 8 Optical Network Technologies Electrical and Electronic Engineering 1 works
- 9 IoT and Edge/Fog Computing Computer Networks and Communications 1 works
- 10 Telecommunications and Broadcasting Technologies Media Technology 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.
World: 28% of research is openly available.
World: 19% is written across borders.
How has KDDI (Japan)'s research output changed?
Output in 2018–2022 was 64% lower than in 2013–2017.
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
- The University of Tokyo
- Tokyo Institute of Technology
- Keio University
- Waseda University
- Tokyo University of Science
- Nihon University
- Hitachi (Japan)
- NTT (Japan)
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.