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Researcher · Sapporo Medical University · Japan

Koichi Hirata

Koichi Hirata publishes mostly in Surgery, Neurology and Oncology, on topics such as Pancreatic and Hepatic Oncology Research, Peripheral Neuropathies and Disorders and Parkinson's Disease Mechanisms and Treatments.

ORCID 0000-0002-6492-4734 OpenAlex
World rank
#479,832
of 1,633,909 ranked researchers
Rank in Japan
#17,749
of 114,622
Works
271
Citations
505
Citations per work
1.9

What does Koichi Hirata research?

Surgery: 11.7%Neurology: 10.6%Oncology: 9.8%Pulmonary and Respiratory Medicine: 8.7%other fields: 59.2%12%top field
Surgery11.7%Neurology10.6%Oncology9.8%Pulmonary and Respiratory Medicine8.7%other fields59.2%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Surgery12% of their works
  2. 2Neurology11% of their works
  3. 3Oncology10% of their works
  4. 4Pulmonary and Respiratory Medicine9% of their works
  5. 5Epidemiology6% of their works
  6. 6Molecular Biology5% of their works

Research topics

Which keywords describe Koichi Hirata's research?

The keywords of their largest research topics: Neurological Disorders, Chemotherapy, Pancreatic Cancer, Surgical Complications, Chronic Inflammatory Demyelinating Polyradiculoneuropathy, Guillain-Barré Syndrome, a-Synuclein and Headache Disorders.

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 18 words, with their numbers
  1. Neurological Disorders192 topics
  2. Chemotherapy182 topics
  3. Pancreatic Cancer121 topic
  4. Surgical Complications121 topic
  5. Chronic Inflammatory Demyelinating Polyradiculoneuropathy101 topic
  6. Guillain-Barré Syndrome101 topic
  7. Headache Disorders91 topic
  8. Migraine91 topic
  9. Parkinson's Disease91 topic
  10. a-Synuclein91 topic
  11. Acute Pancreatitis61 topic
  12. Chronic Pancreatitis61 topic
  13. Endoscopic Resection61 topic
  14. Gastric Cancer61 topic
  15. NAFLD61 topic
  16. NASH61 topic
  17. Brain-Computer Interfaces51 topic
  18. EEG Analysis51 topic

Where does Koichi Hirata work?

Koichi Hirata's main affiliation in the publication record is Sapporo Medical University, Japan.

How many publications and citations does Koichi Hirata have?

Science Explorer counts 271 works and 505 citations for Koichi Hirata, ranking #479,832 of 1,633,909 researchers worldwide on the composite 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 Koichi Hirata

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