Impact Factor（インパクトファクター）

Tel: 075-441-3155E-mail: infos@

Impact Factor

2013/9/27

rev 2019/8/19

Impact Factor 1 Impact Factor 2 Impact Factor 3 Impact Factor 4 Impactfactor 5 EigenFactor 6 6

Impact Factor

Impact factor Eugene Gerfield 1996Impact factor Gerfield Thomson Clarivate Analytics Journal Citation Reports

Impact Factor

Impact factor

A(year) = (B(year1) + B(year2)) / (C(year1) + C(year2))

year A(year) B(year1) B(year2) C(year1) C(year2)

year Impact factor year year year year year year

2017 502016 40 2018 2



1

Tel: 075-441-3155E-mail: infos@

2017 80 2016 60

2018 Impact Factor = (80 + 60) / (50 + 40) = 1.55

6 ImpactFactor 2019 ImpactFactor 2020 6

Impact Factor Impact Impact Factor Impact Factor

Impact Factor

Impact Factor Impact Factor 10

2018 1

2 3 4 5 6 7 8 9 10

Journal Title

Impact Factor

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS

10.405

NPG Asia Materials

8.052

Gastric Cancer

5.554

JOURNAL OF GASTROENTEROLOGY

5.130

CANCER SCIENCE

4.751

Sustainability Science

4.669

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN

4.431

DNA RESEARCH

4.000

ALLERGOLOGY INTERNATIONAL

3.965

PLANT AND CELL PHYSIOLOGY

3.929

2017 IF 1

2 5 3 8 12 13 4 10 9

Clarivate Analytics Journal Citation Reports 2018

Impact Factor 247



2

Tel: 075-441-3155E-mail: infos@

2018 1 2 3 4 5 6 7 8 9

10

Journal Title

Impact Factor

CA-A CANCER JOURNAL FOR CLINICIANS

223.679

NATURE REVIEWS MATERIALS

74.449

NEW ENGLAND JOURNAL OF MEDICINE

70.670

LANCET

59.102

NATURE REVIEWS DRUG DISCOVERY

57.618

CHEMICAL REVIEWS

54.301

NATURE ENERGY

54.000

NATURE REVIEWS CANCER

51.848

JAMA JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION

51.273

NATURE REVIEW IMMUNOLIGY

44.019

Clarivate Analytics Journal Citation Reports 2018

2017 1 5 2 3 6 4 8 9 7

10

Impact Factor Impact Factor Impact Factor Impact Factor

Impact Factor

Journal Citation ReportsJCRJCR WEB WEB WEB JCR Impact Factor Impact Factor

JCR Clarivate Analytics JCR

Clarivate Analytics JCR JCR

Impact Factor



3

Tel: 075-441-3155E-mail: infos@

Clarivate Analytics

Impact Factor

Impact Factor Clarivate Analytics Web Web of Science Web of Scienrce Science Citation Index ExpandedSCIE Social Scineces Citation IndexSSCI E SCI DVD Impact Factor SCIE SSCI

Web of ScienceSCIE SSCIClarivate Analytics

Clarivate Analytics 4

1 2 3 4

1 2

3 Regional Journal 20 ImpactFactor 12506 6 6 Editorial Board 2008 Regional Journal

Impact Factor Impact Factor Web of Science Web of Science Impact Factor Impact Factor ImpactFactor ImpactFactor



4

Tel: 075-441-3155E-mail: infos@

ImpactFactor ImpactFactor

Clarivate Analytics Clarivate Analytics Clarivate Analytics 2

Impactfactor

Impact Factor Impact Factor

ImpactFactor Method Guideline

ImpactFactor ImpactFactor

Clarivate Analytics EigenFactor



5

 ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download