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Company · Kyoto · Japan

ROHM

In research, ROHM stands highest in Physical Sciences (#9,778 of 10,670 worldwide), 2022-now. Relative to its size it is most specialised in Electrical and Electronic Engineering and Engineering (Electrical and Electronic Engineering is 14.9× its share of world research).

rohm.com/web/globalROR OpenAlex
World rank, 2022-now
#22,108
of 22,385 · #7,731 all time
Rank in Japan
#881
of 924
Research works
602
▼ 8% vs 2018-21
Citations
9.6k
15.9 per fractional work
Top-10% rate
6.7%
all institutions 10.0%
vs its own fields
0.92×
1.00× is exactly expected
Open access
26%
world 40%
International
15%
world 18%
ROHM

What is ROHM 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 #9,778 of 10,670 6.4%63 #2476

Each strip is that field's whole ranked pool, with the notch where ROHM 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 ROHM work in?

In 2022-now, 93% of research at ROHM is in Physical Sciences, 5% in Health Sciences. Its largest fields are Engineering (73%), Physics and Astronomy (7%), Materials Science (6%). It does 2.3× the world's share of Physical Sciences.

Physical Sciences: 71 fractional works · 93.1% of its workEngineering: 55 fractional works · 72.6% of its workElectrical and Electronic Engineering: 40 fractional works · 53.1% of its workMechanical Engineering: 5 fractional works · 6.5% of its workBiomedical Engineering: 4 fractional works · 4.9% of its workAutomotive Engineering: 2 fractional works · 2.7% of its workMechanics of Materials: 2 fractional works · 2.1% of its workControl and Systems Engineering: 1 fractional works · 1.3% of its workOcean Engineering: 1 fractional works · 1.0% of its workCivil and Structural Engineering: 0 fractional works · 0.6% of its workMedia Technology: 0 fractional works · 0.2% of its workPhysics and Astronomy: 5 fractional works · 6.7% of its workCondensed Matter Physics: 2 fractional works · 2.9% of its workAtomic and Molecular Physics, and Optics: 2 fractional works · 2.6% of its workAstronomy and Astrophysics: 1 fractional works · 1.1% of its workSmaller subfields together: 0 fractional works · 0.1% of its workMaterials Science: 5 fractional works · 6.4% of its workMaterials Chemistry: 2 fractional works · 2.7% of its workElectronic, Optical and Magnetic Materials: 2 fractional works · 2.7% of its workPolymers and Plastics: 0 fractional works · 0.4% of its workCeramics and Composites: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.3% of its workComputer Science: 4 fractional works · 5.4% of its workHardware and Architecture: 2 fractional works · 2.1% of its workComputer Vision and Pattern Recognition: 1 fractional works · 1.3% of its workComputer Networks and Communications: 1 fractional works · 1.1% of its workArtificial Intelligence: 0 fractional works · 0.7% of its workComputational Theory and Mathematics: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEnvironmental Science: 1 fractional works · 1.0% of its workEcology: 0 fractional works · 0.4% of its workIndustrial and Manufacturing Engineering: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workChemistry: 0 fractional works · 0.5% of its workOrganic Chemistry: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.3% of its workChemical Engineering: 0 fractional works · 0.2% of its workBioengineering: 0 fractional works · 0.2% of its workEnergy: 0 fractional works · 0.2% of its workRenewable Energy, Sustainability and the Environment: 0 fractional works · 0.2% of its workEarth and Planetary Sciences: 0 fractional works · 0.1% of its workHealth Sciences: 4 fractional works · 4.6% of its workMedicine: 3 fractional works · 3.7% of its workUrology: 0 fractional works · 0.7% of its workObstetrics and Gynecology: 0 fractional works · 0.6% of its workSurgery: 0 fractional works · 0.6% of its workPhysiology: 0 fractional works · 0.3% of its workEpidemiology: 0 fractional works · 0.2% of its workCritical Care and Intensive Care Medicine: 0 fractional works · 0.2% of its workPulmonary and Respiratory Medicine: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.9% of its workHealth Professions: 1 fractional works · 0.8% of its workGeneral Health Professions: 1 fractional works · 0.8% of its workSmaller subfields together: 0 fractional works · 0.1% of its workNursing: 0 fractional works · 0.1% of its workLife Sciences: 1 fractional works · 1.7% of its workBiochemistry, Genetics and Molecular Biology: 1 fractional works · 0.9% of its workGenetics: 0 fractional works · 0.3% of its workMolecular Biology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workAgricultural and Biological Sciences: 0 fractional works · 0.6% of its workPlant Science: 0 fractional works · 0.3% of its workEcology, Evolution, Behavior and Systematics: 0 fractional works · 0.2% of its workNeuroscience: 0 fractional works · 0.1% of its workImmunology and Microbiology: 0 fractional works · 0.1% of its workSocial Sciences: 0 fractional works · 0.6% of its workSocial Sciences: 0 fractional works · 0.3% of its workEducation: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workBusiness, Management and Accounting: 0 fractional works · 0.2% of its workOrganizational Behavior and Human Resource Management: 0 fractional works · 0.2% of its workPsychology: 0 fractional works · 0.1% of its workALL ITS WORKROHM76fractional works, 2022-now
Life Sciences2%Physical Sciences93%Health Sciences5%Social Sciences1%

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 19 fields, with their numbers
    1. Engineering5572.6%
    2. Physics and Astronomy56.7%
    3. Materials Science56.4%
    4. Computer Science45.4%
    5. Environmental Science11.0%
    6. Chemistry00.5%
    7. Chemical Engineering00.2%
    8. Energy00.2%
    9. Earth and Planetary Sciences00.1%
    1. Medicine33.7%
    2. Health Professions10.8%
    3. Nursing00.1%
    1. Biochemistry, Genetics and Molecular Biology10.9%
    2. Agricultural and Biological Sciences00.6%
    3. Neuroscience00.1%
    4. Immunology and Microbiology00.1%
    1. Social Sciences00.3%
    2. Business, Management and Accounting00.2%
    3. Psychology00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does ROHM specialise in?

Where its research is concentrated relative to its size: Electrical and Electronic Engineering takes 14.9× the share of its output that it takes of world research.

  1. Electrical and Electronic EngineeringSubfield · 40.3 works15×
  2. EngineeringField · 55.1 works4.8×
← 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: 0.12× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.17× its world share, 1 worksBiochemistry, Geneti…Immunology and Microbiology: 0.09× its world share, 0 worksImmunology and Micro…Neuroscience: 0.09× its world share, 0 worksNeuroscienceChemical Engineering: 0.63× its world share, 0 worksChemical EngineeringChemistry: 0.30× its world share, 0 worksChemistryComputer Science: 0.69× its world share, 4 worksComputer ScienceEarth and Planetary Sciences: 0.07× its world share, 0 worksEarth and Planetary …Energy: 0.24× its world share, 0 worksEnergyEngineering: 4.84× its world share, 55 worksEngineeringEnvironmental Science: 0.21× its world share, 1 worksEnvironmental ScienceMaterials Science: 1.82× its world share, 5 worksMaterials SciencePhysics and Astronomy: 3.00× its world share, 5 worksPhysics and AstronomyHealth Professions: 0.31× its world share, 1 worksHealth ProfessionsMedicine: 0.20× its world share, 3 worksMedicineNursing: 0.10× its world share, 0 worksNursingBusiness, Management and Accounting: 0.07× its world share, 0 worksBusiness, Management…Psychology: 0.02× its world share, 0 worksPsychologySocial Sciences: 0.03× its world share, 0 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Engineering, 4.8×. Every wedge is a field page.

All 19 fields, with their numbers
  1. Engineering4.84×55 works
  2. Physics and Astronomy3.00×5 works
  3. Materials Science1.82×5 works
  4. Computer Science0.69×4 works
  5. Chemical Engineering0.63×0 works
  6. Health Professions0.31×1 works
  7. Chemistry0.30×0 works
  8. Energy0.24×0 works
  9. Environmental Science0.21×1 works
  10. Medicine0.20×3 works
  11. Biochemistry, Genetics and Molecular Biology0.17×1 works
  12. Agricultural and Biological Sciences0.12×0 works
  13. Nursing0.10×0 works
  14. Immunology and Microbiology0.09×0 works
  15. Neuroscience0.09×0 works
  16. Earth and Planetary Sciences0.07×0 works
  17. Business, Management and Accounting0.07×0 works
  18. Social Sciences0.03×0 works
  19. Psychology0.02×0 works

Who are the top researchers at ROHM?

Ranked on the quality score, Masashi Kubota, H. Takasu and Tetsuhiro Tanabe lead among researchers whose main affiliation is ROHM.

  1. 1 Masashi Kubota Japan · #677,519 worldwide 2k citations · 52 works
  2. 2 H. Takasu Japan · #1,017,455 worldwide 3.1k citations · 85 works
  3. 3 Tetsuhiro Tanabe Japan · #1,156,729 worldwide 1.7k citations · 30 works
  4. 4 Kuniyoshi Okamoto Japan · #1,552,839 worldwide 966 citations · 24 works
  5. 5 Yuichi Nakao Japan · #2,055,718 worldwide 909 citations · 24 works
  6. 6 Akira Kamisawa Japan · #2,302,742 worldwide 1.5k citations · 49 works
  7. 7 Hirotaka Otake Japan · #2,487,158 worldwide 713 citations · 32 works
  8. 8 Dai Ohnishi Japan · #2,503,547 worldwide 925 citations · 28 works
  9. 9 Deo V. Shenai Japan · #2,601,371 worldwide 434 citations · 26 works
  10. 10 Taketoshi Tanaka Japan · #2,645,993 worldwide 524 citations · 27 works
All ranked researchers at ROHM

What are the most cited papers from ROHM?

The most cited paper from ROHM is "Preparation of Pb(Zr,Ti)O3 thin films on electrodes including IrO2" (Takashi Nakamura, Yuichi Nakao, Akira Kamisawa et al., 1994), with 320 citations. Next come "Lasers producing tailored beams" (298) and "Observation of the fractional quantum Hall effect in an oxide" (294).

Most cited papers
#PaperReleasedCitations
1 Preparation of Pb(Zr,Ti)O3 thin films on electrodes including IrO2 Takashi Nakamura, Yuichi Nakao, Akira Kamisawa et al. · Applied Physics Letters 19 Sep 1994 320
2 Lasers producing tailored beams Eiji Miyai, Kyosuke Sakai, Takayuki Okano et al. · Nature 21 Jun 2006 298
3 Observation of the fractional quantum Hall effect in an oxide Atsushi Tsukazaki, Shunsuke Akasaka, Ken Nakahara et al. · Nature Materials 17 Oct 2010 294
4 Thermal Generation of Spin Current in an Antiferromagnet Shinichiro Seki, Toshiya Ideue, Masashi Kubota et al. · Physical Review Letters Open access 29 Dec 2015 282
5 High performance SiC trench devices with ultra-low ron Takashi Nakamura, Yoshiaki Nakano, Masatoshi Aketa et al. Conference paper Dec 2011 281
All 61 most cited papers, with filters and sorting

Which keywords describe research at ROHM?

By fractional works in 2022-now, weighted toward what it does more of than the world: High-Temperature Electronics, Thermal Management, Reliability, Power Electronics, Silicon Carbide, Wide Bandgap Semiconductors, Nanoparticles and Renewable Energy Integration.

▲ 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. High-Temperature Electronics12▲ 261×2 topics
  2. Thermal Management11▲ 46×4 topics
  3. Reliability8▲ 148×2 topics
  4. Power Electronics8▲ 34×7 topics
  5. Silicon Carbide8▲ 225×1 topic
  6. Wide Bandgap Semiconductors8▲ 261×1 topic
  7. Nanoparticles5▲ 5.6×8 topics
  8. Renewable Energy Integration4▲ 17×3 topics
  9. Electromigration4▲ 192×2 topics
  10. Thermal Behavior4▲ 125×2 topics
  11. Process Variation4▲ 85×2 topics
  12. Nanowires4▲ 35×3 topics
  13. Interfacial Reactions4▲ 260×1 topic
  14. Lead-free Solders4▲ 260×1 topic
  15. Electric Vehicle Charging3▲ 54×2 topics
  16. Nanoelectronics3▲ 52×2 topics
  17. Nanowire Transistors3▲ 113×1 topic
  18. Tunnel Field-Effect Transistors3▲ 113×1 topic
  19. Band Parameters3▲ 79×2 topics
  20. Integrated Circuits3▲ 29×3 topics
  21. Metamaterials3▲ 29×3 topics
  22. Biosensors3▲ 8.0×7 topics
  23. Atomic Layer Deposition3▲ 60×1 topic
  24. High-k Dielectrics3▲ 60×1 topic
  25. Mechanical Properties3▲ 3.8×5 topics
  26. Semiconductors3▲ 13×3 topics
  27. DC-DC Converters2▲ 57×1 topic
  28. High-Frequency Power Conversion2▲ 57×1 topic
  29. Light-Emitting Diodes2▲ 20×2 topics
  30. CMOS Technology2▲ 35×4 topics
  31. GaN2▲ 82×1 topic
  32. III-Nitrides2▲ 95×1 topic
  33. CMOS2▲ 57×2 topics
  34. Efficiency Optimization2▲ 59×2 topics
  35. Fault Tolerance2▲ 18×3 topics
  36. Spectroscopy2▲ 17×2 topics
  37. Delta-Sigma Modulator2▲ 79×2 topics
  38. Imaging2▲ 11×1 topic
  39. Optical Modulators2▲ 19×2 topics
  40. Terahertz Technology2▲ 144×1 topic

Which research topics does ROHM publish most on?

By volume in 2022-now: Silicon Carbide Semiconductor Technologies, Electronic Packaging and Soldering Technologies, Advancements in Semiconductor Devices and Circuit Design and Semiconductor materials and devices.

Silicon Carbide Semicond…8Silicon Carbide Semiconductor Technologies: 8 fractional worksElectronic Packaging and…4Electronic Packaging and Soldering Technologies: 4 fractional worksAdvancements in Semicond…3Advancements in Semiconductor Devices and Circuit Design: 3 fractional worksSemiconductor materials and devices: 3 fractional worksAdvanced DC-DC Converters: 2 fractional worksGaN-based semiconductor …2GaN-based semiconductor devices and materials: 2 fractional worksTerahertz technology and applications: 2 fractional worksElectromagnetic Compatibility and Noise Suppression: 2 fractional worksMultilevel Inverters and Converters: 2 fractional works3D IC and TSV technologies: 2 fractional works
Electrical and Electronic EngineeringCondensed Matter Physics

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

  1. 1 Silicon Carbide Semiconductor Technologies Electrical and Electronic Engineering 8 works
  2. 2 Electronic Packaging and Soldering Technologies Electrical and Electronic Engineering 4 works
  3. 3 Advancements in Semiconductor Devices and Circuit Design Electrical and Electronic Engineering 3 works
  4. 4 Semiconductor materials and devices Electrical and Electronic Engineering 3 works
  5. 5 Advanced DC-DC Converters Electrical and Electronic Engineering 2 works
  6. 6 GaN-based semiconductor devices and materials Condensed Matter Physics 2 works
  7. 7 Terahertz technology and applications Electrical and Electronic Engineering 2 works
  8. 8 Electromagnetic Compatibility and Noise Suppression Electrical and Electronic Engineering 2 works
  9. 9 Multilevel Inverters and Converters Electrical and Electronic Engineering 2 works
  10. 10 3D IC and TSV technologies Electrical and Electronic Engineering 2 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 available25.9%not open74.1%

World: 40% of research is openly available.

with international co-authors14.9%domestic only85.1%

World: 18% is written across borders.

How has ROHM's research output changed?

Output in 2022-2025 was 8% lower 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 ROHM as a percentage of every work published that year, 0.00033% in 2024.

still counting0.0010%0.0020%ROHM0.00039% in 202519801990200020102020

Fractional works of ROHM 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 counting10%20%all institutions10.0% in 2025ROHM4.3% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 19.2% in 2007.

Other research institutions in Kyoto

All research institutions in Kyoto

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ROHM on Science Explorer

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