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Researcher · Aichi Prefectural Government · Japan

Hisao Oka

Hisao Oka publishes mostly in Analytical Chemistry, Spectroscopy and Molecular Biology, on topics such as Chromatography in Natural Products, Analytical Chemistry and Chromatography and Pesticide Residue Analysis and Safety.

ORCID 0009-0000-4377-184X OpenAlex
World rank
#2,614,096
of 7,710,434 ranked researchers
Rank in Japan
#54,168
of 383,136
Works
192
Citations
5.8k
Citations per work
30.5
h-index
39
i10-index 115Top 3.8% in Analytical Chemistry
Hisao Oka

What does Hisao Oka research?

Hisao Oka's work is mostly in Chemistry (29%), Biochemistry, Genetics and Molecular Biology (9%), Agricultural and Biological Sciences (7%).

Everything else: 84 works · 43.9% of their workPhysical Sciences: 55 works · 28.7% of their workChemistry: 55 works · 28.7% of their workAnalytical Chemistry: 35 works · 18.0% of their workSpectroscopy: 21 works · 10.7% of their workLife Sciences: 41 works · 21.5% of their workBiochemistry, Genetics and Molecular Biology: 17 works · 8.7% of their workMolecular Biology: 17 works · 8.7% of their workAgricultural and Biological Sciences: 14 works · 7.3% of their workFood Science: 14 works · 7.3% of their workPharmacology, Toxicology and Pharmaceutics: 11 works · 5.5% of their workPharmacology: 11 works · 5.5% of their workHealth Sciences: 11 works · 5.9% of their workMedicine: 11 works · 5.9% of their workPharmacology: 11 works · 5.9% of their workTHEIR WORKHisao Oka192works
Life Sciences22%Physical Sciences29%Health Sciences6%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
  1. Everything else8443.9%
    1. Chemistry5528.7%
    1. Biochemistry, Genetics and Molecular Biology178.7%
    2. Agricultural and Biological Sciences147.3%
    3. Pharmacology, Toxicology and Pharmaceutics115.5%
    1. Medicine115.9%
  1. 1Analytical Chemistry18% of their works
  2. 2Spectroscopy11% of their works
  3. 3Molecular Biology9% of their works
  4. 4Food Science7% of their works
  5. 5Pharmacology6% of their works
  6. 6Pharmacology6% of their works

Research topics

Which keywords describe Hisao Oka's research?

The keywords of their largest research topics: Liquid Chromatography, Bioactive Compounds, Counter-Current Chromatography, Natural Product Isolation, Chiral Separation, Gas Chromatography, Antiviral and Cancer.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 20 words, with their numbers
  1. Liquid Chromatography642 topics
  2. Bioactive Compounds602 topics
  3. Counter-Current Chromatography451 topic
  4. Natural Product Isolation451 topic
  5. Chiral Separation371 topic
  6. Gas Chromatography371 topic
  7. Antiviral312 topics
  8. Cancer312 topics
  9. Food Colorants271 topic
  10. Mass Spectrometry271 topic
  11. Pesticide Residues271 topic
  12. Synthetic Dyes271 topic
  13. Antibiotic Pharmacokinetics231 topic
  14. Critically Ill Patients231 topic
  15. Antibiotics171 topic
  16. Resistance Genes171 topic
  17. Saponins161 topic
  18. Triterpenoids161 topic
  19. Glycyrrhizin151 topic
  20. Licorice151 topic

Where does Hisao Oka work?

Hisao Oka's main affiliation in the publication record is Aichi Prefectural Government, Japan.

How many publications and citations does Hisao Oka have?

OpenAlex counts 192 works and 5,850 citations for Hisao Oka, an h-index of 39, ranking #2,614,096 of 7,710,434 researchers worldwide on the quality score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Other researchers named Hisao Oka

Papers, co-authors, who cited this work and researchers on the nearest topics have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

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