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Company · Nagoya · Japan

NGK Spark Plug (Japan)

In research, NGK Spark Plug (Japan) stands highest in Physical Sciences (#11,202 of 17,446 worldwide) and Engineering (#6,615 of 9,532 worldwide), over all time.

ngksparkplugs.comROR OpenAlex
World rank, all time
#29,378
of 34,923
Rank in Japan
#1,258
of 1,923
Research works
279
▼ 28% vs 2018-21
Citations
3.7k
13.4 per fractional work
Top-10% rate
6.7%
all institutions 10.0%
vs its own fields
0.87×
1.00× is exactly expected
Open access
37%
world 40%
International
10%
world 18%
NGK Spark Plug (Japan)

What is NGK Spark Plug (Japan) known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Physical SciencesDomain #11,202 of 17,446 5.5%261
EngineeringField #6,615 of 9,532 5.6%157

Each strip is that field's whole ranked pool, with the notch where NGK Spark Plug (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 NGK Spark Plug (Japan) work in?

In 2022-now, 75% of research at NGK Spark Plug (Japan) is in Physical Sciences, 11% in Health Sciences. Its largest fields are Engineering (52%), Materials Science (15%), Medicine (11%). It does 1.7× the world's share of Physical Sciences.

Physical Sciences: 16 fractional works · 75.4% of its workEngineering: 11 fractional works · 51.9% of its workMechanical Engineering: 3 fractional works · 13.7% of its workMechanics of Materials: 2 fractional works · 10.6% of its workElectrical and Electronic Engineering: 2 fractional works · 10.5% of its workBiomedical Engineering: 2 fractional works · 7.4% of its workCivil and Structural Engineering: 1 fractional works · 3.5% of its workAerospace Engineering: 1 fractional works · 2.9% of its workAutomotive Engineering: 0 fractional works · 1.4% of its workIndustrial and Manufacturing Engineering: 0 fractional works · 0.8% of its workComputational Mechanics: 0 fractional works · 0.5% of its workSafety, Risk, Reliability and Quality: 0 fractional works · 0.5% of its workMaterials Science: 3 fractional works · 14.9% of its workMaterials Chemistry: 2 fractional works · 9.8% of its workCeramics and Composites: 1 fractional works · 4.0% of its workElectronic, Optical and Magnetic Materials: 0 fractional works · 1.1% of its workChemical Engineering: 1 fractional works · 2.9% of its workFluid Flow and Transfer Processes: 0 fractional works · 1.4% of its workCatalysis: 0 fractional works · 0.8% of its workProcess Chemistry and Technology: 0 fractional works · 0.8% of its workEnvironmental Science: 0 fractional works · 1.9% of its workManagement, Monitoring, Policy and Law: 0 fractional works · 0.8% of its workHealth, Toxicology and Mutagenesis: 0 fractional works · 0.5% of its workWater Science and Technology: 0 fractional works · 0.5% of its workPhysics and Astronomy: 0 fractional works · 1.6% of its workCondensed Matter Physics: 0 fractional works · 1.6% of its workEnergy: 0 fractional works · 1.4% of its workRenewable Energy, Sustainability and the Environment: 0 fractional works · 1.4% of its workChemistry: 0 fractional works · 0.8% of its workSpectroscopy: 0 fractional works · 0.8% of its workHealth Sciences: 2 fractional works · 11.0% of its workMedicine: 2 fractional works · 11.0% of its workRadiology, Nuclear Medicine and Imaging: 1 fractional works · 3.2% of its workPhysiology: 0 fractional works · 2.4% of its workDermatology: 0 fractional works · 1.9% of its workSurgery: 0 fractional works · 1.0% of its workOncology: 0 fractional works · 0.8% of its workOrthopedics and Sports Medicine: 0 fractional works · 0.8% of its workImmunology and Allergy: 0 fractional works · 0.5% of its workEpidemiology: 0 fractional works · 0.3% of its workLife Sciences: 2 fractional works · 9.2% of its workBiochemistry, Genetics and Molecular Biology: 2 fractional works · 8.4% of its workMolecular Biology: 2 fractional works · 8.1% of its workMolecular Medicine: 0 fractional works · 0.3% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.8% of its workPharmaceutical Science: 0 fractional works · 0.8% of its workSocial Sciences: 1 fractional works · 4.3% of its workSocial Sciences: 1 fractional works · 3.2% of its workTransportation: 1 fractional works · 3.2% of its workBusiness, Management and Accounting: 0 fractional works · 1.1% of its workManagement of Technology and Innovation: 0 fractional works · 1.1% of its workALL ITS WORKNGK Spark Plug(Japan)21fractional works, 2022-now
Life Sciences9%Physical Sciences75%Health Sciences11%Social Sciences4%

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 12 fields, with their numbers
    1. Engineering1151.9%
    2. Materials Science314.9%
    3. Chemical Engineering12.9%
    4. Environmental Science01.9%
    5. Physics and Astronomy01.6%
    6. Energy01.4%
    7. Chemistry00.8%
    1. Medicine211.0%
    1. Biochemistry, Genetics and Molecular Biology28.4%
    2. Pharmacology, Toxicology and Pharmaceutics00.8%
    1. Social Sciences13.2%
    2. Business, Management and Accounting01.1%
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.

Biochemistry, Genetics and Molecular Biology: 1.58× its world share, 2 worksBiochemistry, Geneti…Pharmacology, Toxicology and Pharmaceutics: 2.29× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 8.45× its world share, 1 worksChemical EngineeringChemistry: 0.51× its world share, 0 worksChemistryEnergy: 1.46× its world share, 0 worksEnergyEngineering: 3.46× its world share, 11 worksEngineeringEnvironmental Science: 0.38× its world share, 0 worksEnvironmental ScienceMaterials Science: 4.27× its world share, 3 worksMaterials SciencePhysics and Astronomy: 0.73× its world share, 0 worksPhysics and AstronomyMedicine: 0.57× its world share, 2 worksMedicineBusiness, Management and Accounting: 0.33× its world share, 0 worksBusiness, Management…Social Sciences: 0.25× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Chemical Engineering, 8.4×. Every wedge is a field page.

All 12 fields, with their numbers
  1. Chemical Engineering8.45×1 works
  2. Materials Science4.27×3 works
  3. Engineering3.46×11 works
  4. Pharmacology, Toxicology and Pharmaceutics2.29×0 works
  5. Biochemistry, Genetics and Molecular Biology1.58×2 works
  6. Energy1.46×0 works
  7. Physics and Astronomy0.73×0 works
  8. Medicine0.57×2 works
  9. Chemistry0.51×0 works
  10. Environmental Science0.38×0 works
  11. Business, Management and Accounting0.33×0 works
  12. Social Sciences0.25×1 works

Who are the top researchers at NGK Spark Plug (Japan)?

Ranked on the quality score, Yo Tajima, H. Kozuka and Yasushi Matsuo lead among researchers whose main affiliation is NGK Spark Plug (Japan).

  1. 1 Yo Tajima Japan · #2,326,225 worldwide 449 citations · 18 works
  2. 2 H. Kozuka Japan · #2,625,586 worldwide 578 citations · 24 works
  3. 3 Yasushi Matsuo Japan · #3,182,208 worldwide 143 citations · 19 works
  4. 4 Yutaka Takagi Japan · #3,293,542 worldwide 787 citations · 49 works
  5. 5 Hitoshi Yokoi Japan · #3,347,047 worldwide 714 citations · 28 works
  6. 6 Hisao Banno Japan · #3,396,080 worldwide 669 citations · 53 works
  7. 7 Toru Shimamori Japan · #3,473,289 worldwide 194 citations · 23 works
  8. 8 Hideto Yamada Japan · #3,698,442 worldwide 552 citations · 29 works
  9. 9 Takeshi Mitsuoka Japan · #3,862,440 worldwide 194 citations · 30 works
  10. 10 Minato Ando Japan · #3,862,506 worldwide 286 citations · 28 works
All ranked researchers at NGK Spark Plug (Japan)

What are the most cited papers from NGK Spark Plug (Japan)?

The most cited paper from NGK Spark Plug (Japan) is "Solid‐State Li–Metal Batteries: Challenges and Horizons of Oxide and Sulfide Solid Electrolytes and Their Interfaces" (Kun Joong Kim, Moran Balaish, Masaki Wadaguchi et al., 2020), with 813 citations. Next come "Crystal growth and low coercive field 180° domain switching characteristics of stoichiometric LiTaO3" (276) and "Stoichiometric LiTaO3 single crystal growth by double crucible Czochralski method using automatic powder supply system" (212).

Most cited papers
#PaperReleasedCitations
1 Solid‐State Li–Metal Batteries: Challenges and Horizons of Oxide and Sulfide Solid Electrolytes and Their Interfaces Kun Joong Kim, Moran Balaish, Masaki Wadaguchi et al. · Advanced Energy Materials 9 Nov 2020 813
2 Crystal growth and low coercive field 180° domain switching characteristics of stoichiometric LiTaO3 Kenji Kitamura, Yasunori Furukawa, Kazuo Niwa et al. · Applied Physics Letters 23 Nov 1998 276
3 Stoichiometric LiTaO3 single crystal growth by double crucible Czochralski method using automatic powder supply system Yasunori Furukawa, Kenji Kitamura, Eisuke Suzuki et al. · Journal of Crystal Growth Mar 1999 212
4 Stoichiometric Mg:LiNbO_3 as an effective material for nonlinear optics Yasunori Furukawa, Kenji Kitamura, Shunji Takekawa et al. · Optics Letters 15 Dec 1998 170
5 Recent developments of piezoelectric ceramic products and composites of synthetic rubber and piezoelectric ceramic particles Hisao Banno · Ferroelectrics Nov 1983 169
All 60 most cited papers, with filters and sorting

Which keywords describe research at NGK Spark Plug (Japan)?

By fractional works in 2022-now, weighted toward what it does more of than the world: Mechanical Properties, Sintering, Spark Plasma Sintering, Microstructure, Nanocomposites, Cemented Carbides, Nanostructured Materials and Thin Films.

▲ 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 15 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 15 words, with their numbers
  1. Mechanical Properties4▲ 20×5 topics
  2. Sintering3▲ 114×4 topics
  3. Spark Plasma Sintering3▲ 138×2 topics
  4. Microstructure3▲ 25×3 topics
  5. Nanocomposites2▲ 13×3 topics
  6. Cemented Carbides2▲ 185×1 topic
  7. Nanostructured Materials2▲ 57×1 topic
  8. Thin Films2▲ 38×3 topics
  9. Monoclonal Antibodies1▲ 78×2 topics
  10. Therapeutic Antibodies1▲ 100×2 topics
  11. Coatings1▲ 109×1 topic
  12. Nanoindentation1▲ 114×1 topic
  13. Biopharmaceuticals1▲ 99×1 topic
  14. Protein Aggregation1▲ 96×1 topic
  15. Material Properties1▲ 50×2 topics

Which research topics does NGK Spark Plug (Japan) publish most on?

By volume in 2022-now: Advanced materials and composites, Metal and Thin Film Mechanics, Protein purification and stability and Advanced ceramic materials synthesis.

Advanced materials and c…2Advanced materials and composites: 2 fractional worksMetal and Thin Film Mechanics: 1 fractional worksProtein purification and stability: 1 fractional worksAdvanced ceramic materials synthesis: 1 fractional worksFerroelectric and Piezoelectric Materials: 1 fractional worksMetal Alloys Wear and Pr…1Metal Alloys Wear and Properties: 1 fractional worksAcoustic Wave Resonator Technologies: 1 fractional worksThermal properties of materials: 0 fractional worksUltrasonics and Acoustic Wave Propagation: 0 fractional worksUrban Transport and Accessibility: 0 fractional works
Mechanical EngineeringMechanics of MaterialsMolecular BiologyCeramics and Composites3 others

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

  1. 1 Advanced materials and composites Mechanical Engineering 2 works
  2. 2 Metal and Thin Film Mechanics Mechanics of Materials 1 works
  3. 3 Protein purification and stability Molecular Biology 1 works
  4. 4 Advanced ceramic materials synthesis Ceramics and Composites 1 works
  5. 5 Ferroelectric and Piezoelectric Materials Materials Chemistry 1 works
  6. 6 Metal Alloys Wear and Properties Materials Chemistry 1 works
  7. 7 Acoustic Wave Resonator Technologies Biomedical Engineering 1 works
  8. 8 Thermal properties of materials Materials Chemistry 0 works
  9. 9 Ultrasonics and Acoustic Wave Propagation Mechanics of Materials 0 works
  10. 10 Urban Transport and Accessibility Transportation 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 available36.7%not open63.3%

World: 40% of research is openly available.

with international co-authors10.5%domestic only89.5%

World: 18% is written across borders.

How has NGK Spark Plug (Japan)'s research output changed?

Output in 2022-2025 was 28% 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 NGK Spark Plug (Japan) as a percentage of every work published that year, 0.000049% in 2024.

still counting0.0010%0.0020%0.0030%NGK Spark Plug (Japan)0.00012% in 202519801990200020102020

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

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NGK Spark Plug (Japan) on Science Explorer

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