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Company · Hiroshima · Japan

Aisan (Japan)

aisan-ind.co.jp/enROR OpenAlex
Research works
16
▼ 33% vs 2018-21
Citations
68
4.2 per fractional work
Top-10% rate
0.0%
all institutions 10.0%
Open access
14%
world 40%
International
24%
world 18%
Aisan (Japan)

Not ranked overall: Aisan (Japan) is under the volume floor below which an excellence rate is noise. Not ranked is not the same as ranked last.

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

In all years, 99% of research at Aisan (Japan) is in Physical Sciences, 1% in Social Sciences. Its largest fields are Engineering (81%), Chemical Engineering (5%), Materials Science (4%). It does 2.0× the world's share of Physical Sciences.

Physical Sciences: 16 fractional works · 99.0% of its workEngineering: 13 fractional works · 81.0% of its workControl and Systems Engineering: 3 fractional works · 20.8% of its workElectrical and Electronic Engineering: 2 fractional works · 12.2% of its workMechanical Engineering: 2 fractional works · 11.1% of its workComputational Mechanics: 1 fractional works · 8.1% of its workAerospace Engineering: 1 fractional works · 6.8% of its workAutomotive Engineering: 1 fractional works · 6.8% of its workCivil and Structural Engineering: 1 fractional works · 6.6% of its workMechanics of Materials: 1 fractional works · 3.7% of its workBiomedical Engineering: 0 fractional works · 2.7% of its workSafety, Risk, Reliability and Quality: 0 fractional works · 2.0% of its workChemical Engineering: 1 fractional works · 5.5% of its workFluid Flow and Transfer Processes: 1 fractional works · 4.8% of its workCatalysis: 0 fractional works · 0.7% of its workMaterials Science: 1 fractional works · 4.4% of its workMaterials Chemistry: 1 fractional works · 3.7% of its workCeramics and Composites: 0 fractional works · 0.7% of its workComputer Science: 1 fractional works · 4.1% of its workComputer Networks and Communications: 1 fractional works · 4.1% of its workEnvironmental Science: 0 fractional works · 2.0% of its workEnvironmental Engineering: 0 fractional works · 1.0% of its workManagement, Monitoring, Policy and Law: 0 fractional works · 1.0% of its workEarth and Planetary Sciences: 0 fractional works · 1.5% of its workAtmospheric Science: 0 fractional works · 1.5% of its workEnergy: 0 fractional works · 0.5% of its workRenewable Energy, Sustainability and the Environment: 0 fractional works · 0.5% of its workSocial Sciences: 0 fractional works · 1.0% of its workEconomics, Econometrics and Finance: 0 fractional works · 1.0% of its workEconomics and Econometrics: 0 fractional works · 1.0% of its workALL ITS WORKAisan (Japan)16fractional works, all years
Physical Sciences99%Social Sciences1%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in all years. 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 2 domains and 8 fields, with their numbers
    1. Engineering1381.0%
    2. Chemical Engineering15.5%
    3. Materials Science14.4%
    4. Computer Science14.1%
    5. Environmental Science02.0%
    6. Earth and Planetary Sciences01.5%
    7. Energy00.5%
    1. Economics, Econometrics and Finance01.0%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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.

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

The most cited paper from Aisan (Japan) is "Slit Nozzle Injector for A New Concept of Direct Injection SI Gasoline Engine" (Keiso Takeda, Tomojiro SUGIMOTO, Tomihisa Tsuchiya et al., 2000), with 20 citations. Next come "The development of fine atomization injector" (13) and "Water Jacket Spacer for Improvement of Cylinder Bore Temperature Distribution" (13).

Most cited papers
#PaperReleasedCitations
1 Slit Nozzle Injector for A New Concept of Direct Injection SI Gasoline Engine Keiso Takeda, Tomojiro SUGIMOTO, Tomihisa Tsuchiya et al. · SAE technical papers on CD-ROM/SAE technical paper series Conference paper 19 Jun 2000 20
2 The development of fine atomization injector Kazunori Nagasaka · JSAE Review Jul 2000 13
3 Water Jacket Spacer for Improvement of Cylinder Bore Temperature Distribution Takashi Matsutani, Takanori Nakada, Yoshikazu Shinpo et al. · SAE technical papers on CD-ROM/SAE technical paper series Conference paper 11 Apr 2005 13
4 Aisan Fuel Injector for Multipoint Injection System Mamoru Matsubara, Tsuneo Ando, Shigetaka Takada et al. · SAE technical papers on CD-ROM/SAE technical paper series Conference paper Mar 1986 12
5 Fuel Spray Simulation of Slit Nozzle Injector for Direct-Injection Gasoline Engine Masaya Hayakawa, Shigetaka Takada, Kazuhiro Yonesige et al. · SAE technical papers on CD-ROM/SAE technical paper series Conference paper 4 Mar 2002 12
All 29 most cited papers, with filters and sorting

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

By volume in 2022-now: Advanced DC-DC Converters, Silicon Carbide Semiconductor Technologies, Induction Heating and Inverter Technology and Multilevel Inverters and Converters.

Advanced DC-DC Converters0Advanced DC-DC Converters: 0 fractional worksSilicon Carbide Semiconductor Technologies: 0 fractional worksInduction Heating and Inverter Technology: 0 fractional worksMultilevel Inverters and Converters: 0 fractional worksElectromagnetic Compatibility and Noise Suppression: 0 fractional works
Electrical and Electronic EngineeringMechanical Engineering

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

  1. 1 Advanced DC-DC Converters Electrical and Electronic Engineering 0 works
  2. 2 Silicon Carbide Semiconductor Technologies Electrical and Electronic Engineering 0 works
  3. 3 Induction Heating and Inverter Technology Mechanical Engineering 0 works
  4. 4 Multilevel Inverters and Converters Electrical and Electronic Engineering 0 works
  5. 5 Electromagnetic Compatibility and Noise Suppression Electrical and Electronic Engineering 0 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 available14.3%not open85.7%

World: 40% of research is openly available.

with international co-authors23.5%domestic only76.5%

World: 18% is written across borders.

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

Output in 2022-2025 was 33% 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 Aisan (Japan) as a percentage of every work published that year, 0.0000090% in 2024.

still counting0.00010%0.00020%Aisan (Japan)0.0000085% in 20251990200020102020

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

Other research institutions in Hiroshima

All research institutions in Hiroshima

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners have tabs of their own, above.

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