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Koyama, Toshiyuki

Nagoya University, Japan

2025 Rank: 357,488

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Enabling & Strategic Technologies

SubField 1:

Materials

SubField 2:

Mining & Metallurgy

Rank in SubField 1: 5,709 out of 314,399 Researchers

Data For The Year: 2025
Metrics Self-Citations Excluded All
Rank Based on Composite Score357,488317,214
Total Cites1,7912,225
H-index2225
Hm-index1113
Number of Single Authored Papers66
Total Cites to Single Authored Papers7994
Number of Single+First Authored Papers3636
Total Cites to Single+First Authored Papers386481
Number of Single+First+Last Authored Papers7575
Total Cites to Single+First+Last Authored Papers606767
Composite Score23
Number of Distinct Citing Papers1,5671,810
Ratio of Total Citations to Distinct Citing Papers 1.14 1.23
Self-Citation Percentage
19.51%
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Koyama, Toshiyuki

Nagoya University, Japan

2024 Rank: 370,556

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Enabling & Strategic Technologies

SubField 1:

Materials

SubField 2:

Mining & Metallurgy

Rank in SubField 1: 5,827 out of 299,561 Researchers

Data For The Year: 2024
Metrics Self-Citations Excluded All
Rank Based on Composite Score370,556329,488
Total Cites1,6142,033
H-index2023
Hm-index1012
Number of Single Authored Papers66
Total Cites to Single Authored Papers7489
Number of Single+First Authored Papers3636
Total Cites to Single+First Authored Papers354448
Number of Single+First+Last Authored Papers7373
Total Cites to Single+First+Last Authored Papers552711
Composite Score23
Number of Distinct Citing Papers1,4021,635
Ratio of Total Citations to Distinct Citing Papers 1.15 1.24
Self-Citation Percentage
20.61%
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Koyama, Toshiyuki

Nagoya University, Japan

2023 Rank: 373,774

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Enabling & Strategic Technologies

SubField 1:

Materials

SubField 2:

Mining & Metallurgy

Rank in SubField 1: 5,736 out of 281,605 Researchers

Data For The Year: 2023
Metrics Self-Citations Excluded All
Rank Based on Composite Score373,774332,807
Total Cites1,4291,819
H-index1922
Hm-index1012
Number of Single Authored Papers66
Total Cites to Single Authored Papers6781
Number of Single+First Authored Papers3636
Total Cites to Single+First Authored Papers317405
Number of Single+First+Last Authored Papers7070
Total Cites to Single+First+Last Authored Papers494645
Composite Score23
Number of Distinct Citing Papers1,2301,444
Ratio of Total Citations to Distinct Citing Papers 1.16 1.26
Self-Citation Percentage
21.44%
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Koyama, Toshiyuki

Nagoya University, Japan

2022 Rank: 390,256

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Enabling & Strategic Technologies

SubField 1:

Materials

SubField 2:

Mining & Metallurgy

Rank in SubField 1: 5,905 out of 267,149 Researchers

Data For The Year: 2022
Metrics Self-Citations Excluded All
Rank Based on Composite Score390,256338,102
Total Cites1,2491,614
H-index1720
Hm-index1012
Number of Single Authored Papers66
Total Cites to Single Authored Papers6276
Number of Single+First Authored Papers3434
Total Cites to Single+First Authored Papers269354
Number of Single+First+Last Authored Papers6767
Total Cites to Single+First+Last Authored Papers427570
Composite Score22
Number of Distinct Citing Papers1,0761,274
Ratio of Total Citations to Distinct Citing Papers 1.16 1.27
Self-Citation Percentage
22.61%
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Koyama, Toshiyuki

Nagoya University, Japan

2021 Rank: 388,290

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Enabling & Strategic Technologies

SubField 1:

Materials

SubField 2:

Mining & Metallurgy

Rank in SubField 1: 6,094 out of 285,331 Researchers

Data For The Year: 2021
Metrics Self-Citations Excluded All
Rank Based on Composite Score388,290334,227
Total Cites1,1971,544
H-index1720
Hm-index911
Number of Single Authored Papers66
Total Cites to Single Authored Papers6074
Number of Single+First Authored Papers3232
Total Cites to Single+First Authored Papers254334
Number of Single+First+Last Authored Papers6363
Total Cites to Single+First+Last Authored Papers406542
Composite Score22
Number of Distinct Citing Papers1,0291,222
Ratio of Total Citations to Distinct Citing Papers 1.16 1.26
Self-Citation Percentage
22.47%
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