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Shigenobu Yamakoshi

Shigenobu Yamakoshi

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Electronics and Electrical Engineering 46 3308 3170 120 113 200 14957

Shigenobu Yamakoshi publications per year

The chart shows the history of publications by Shigenobu Yamakoshi between 1974 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Shigenobu Yamakoshi published across 52 years, from 1974 to 2025, averaging 4.3 papers a year. Output peaked at 34 publications in 2016. 1 of the 223 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1974 to 2025. Vertical axis: number of publications, 0 to 34. Peak 34 publications in 2016. 1974: 1 publication 1975: 0 publications 1976: 0 publications 1977: 2 publications 1978: 2 publications 1979: 4 publications 1980: 4 publications 1981: 3 publications 1982: 9 publications 1983: 7 publications 1984: 7 publications 1985: 6 publications 1986: 5 publications 1987: 8 publications 1988: 7 publications 1989: 10 publications 1990: 12 publications 1991: 2 publications 1992: 3 publications 1993: 0 publications 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 0 publications 1998: 0 publications 1999: 0 publications 2000: 0 publications 2001: 0 publications 2002: 1 publication 2003: 0 publications 2004: 0 publications 2005: 0 publications 2006: 0 publications 2007: 0 publications 2008: 0 publications 2009: 0 publications 2010: 0 publications 2011: 0 publications 2012: 3 publications 2013: 13 publications 2014: 7 publications 2015: 8 publications 2016: 34 publications 2017: 26 publications 2018: 18 publications 2019: 11 publications 2020: 5 publications 2021: 2 publications 2022: 1 publication 2023: 1 publication 2024: 0 publications 2025: 1 publication
1974 2025

223 publications in total across all disciplines

View publications per year as a table
Shigenobu Yamakoshi: publications per year, 1974 to 2025
Year Publications
1974 1
1975 0
1976 0
1977 2
1978 2
1979 4
1980 4
1981 3
1982 9
1983 7
1984 7
1985 6
1986 5
1987 8
1988 7
1989 10
1990 12
1991 2
1992 3
1993 0
1994 0
1995 0
1996 0
1997 0
1998 0
1999 0
2000 0
2001 0
2002 1
2003 0
2004 0
2005 0
2006 0
2007 0
2008 0
2009 0
2010 0
2011 0
2012 3
2013 13
2014 7
2015 8
2016 34
2017 26
2018 18
2019 11
2020 5
2021 2
2022 1
2023 1
2024 0
2025 1
Total 223
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Shigenobu Yamakoshi publication distribution in Electronics and Electrical Engineering in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Electronics and Electrical Engineering in 2026. The highlighted bar marks where Shigenobu Yamakoshi sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 53 bars. Horizontal axis: publications, 34–53 to 1,065+. Vertical axis: number of scientists, 0 to 445. Most scientists, 445, have 174–193 publications. The last bar groups every scientist with 1,065 publications or more. The highlighted bar, 194–213 publications, is where this scientist sits. 34–53 publications: 24 scientists 54–73 publications: 52 scientists 74–93 publications: 114 scientists 94–113 publications: 203 scientists 114–133 publications: 269 scientists 134–153 publications: 355 scientists 154–173 publications: 403 scientists 174–193 publications: 445 scientists 194–213 publications: 430 scientists 214–233 publications: 431 scientists 234–253 publications: 399 scientists 254–273 publications: 366 scientists 274–293 publications: 335 scientists 294–313 publications: 300 scientists 314–333 publications: 276 scientists 334–353 publications: 250 scientists 354–373 publications: 214 scientists 374–393 publications: 187 scientists 394–413 publications: 152 scientists 414–433 publications: 169 scientists 434–453 publications: 147 scientists 454–473 publications: 111 scientists 474–493 publications: 117 scientists 494–513 publications: 103 scientists 514–533 publications: 99 scientists 534–553 publications: 92 scientists 554–573 publications: 75 scientists 574–593 publications: 58 scientists 594–613 publications: 69 scientists 614–633 publications: 50 scientists 634–653 publications: 62 scientists 654–673 publications: 54 scientists 674–693 publications: 44 scientists 694–713 publications: 37 scientists 714–733 publications: 28 scientists 734–753 publications: 26 scientists 754–773 publications: 26 scientists 774–793 publications: 19 scientists 794–813 publications: 23 scientists 814–833 publications: 20 scientists 834–853 publications: 16 scientists 854–873 publications: 20 scientists 874–893 publications: 11 scientists 894–913 publications: 11 scientists 914–933 publications: 16 scientists 934–953 publications: 13 scientists 954–973 publications: 10 scientists 974–993 publications: 11 scientists 994–1,013 publications: 9 scientists 1,014–1,033 publications: 9 scientists 1,034–1,053 publications: 10 scientists 1,054–1,064 publications: 6 scientists 1,065+ publications: 99 scientists
34–53 publications 1,065+

This scientist: 200 publications — 29th percentile

29% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,065 publications or more.

View publications distribution as a table
Number of Electronics and Electrical Engineering scientists by publication count, Research.com 2026 ranking edition. Based on 6,875 ranked scientists.
Publications Scientists This scientist
34–53 24
54–73 52
74–93 114
94–113 203
114–133 269
134–153 355
154–173 403
174–193 445
194–213 430 200
214–233 431
234–253 399
254–273 366
274–293 335
294–313 300
314–333 276
334–353 250
354–373 214
374–393 187
394–413 152
414–433 169
434–453 147
454–473 111
474–493 117
494–513 103
514–533 99
534–553 92
554–573 75
574–593 58
594–613 69
614–633 50
634–653 62
654–673 54
674–693 44
694–713 37
714–733 28
734–753 26
754–773 26
774–793 19
794–813 23
814–833 20
834–853 16
854–873 20
874–893 11
894–913 11
914–933 16
934–953 13
954–973 10
974–993 11
994–1,013 9
1,014–1,033 9
1,034–1,053 10
1,054–1,064 6
1,065+ 99
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Shigenobu Yamakoshi D-index placement in Electronics and Electrical Engineering in 2026

The chart shows the D-index (discipline H-index) distribution of Electronics and Electrical Engineering scientists ranked by Research.com in 2026. The highlighted bar marks where Shigenobu Yamakoshi sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 82 bars. Horizontal axis: D-Index, 30 to 111+. Vertical axis: number of scientists, 0 to 263. Most scientists, 263, have 32 D-Index. The last bar groups every scientist with 111 D-Index or more. The highlighted bar, 46 D-Index, is where this scientist sits. 30 D-Index: 178 scientists 31 D-Index: 257 scientists 32 D-Index: 263 scientists 33 D-Index: 262 scientists 34 D-Index: 244 scientists 35 D-Index: 236 scientists 36 D-Index: 211 scientists 37 D-Index: 220 scientists 38 D-Index: 214 scientists 39 D-Index: 214 scientists 40 D-Index: 205 scientists 41 D-Index: 187 scientists 42 D-Index: 194 scientists 43 D-Index: 201 scientists 44 D-Index: 155 scientists 45 D-Index: 189 scientists 46 D-Index: 148 scientists 47 D-Index: 160 scientists 48 D-Index: 134 scientists 49 D-Index: 130 scientists 50 D-Index: 141 scientists 51 D-Index: 156 scientists 52 D-Index: 108 scientists 53 D-Index: 130 scientists 54 D-Index: 112 scientists 55 D-Index: 97 scientists 56 D-Index: 111 scientists 57 D-Index: 102 scientists 58 D-Index: 108 scientists 59 D-Index: 120 scientists 60 D-Index: 103 scientists 61 D-Index: 93 scientists 62 D-Index: 92 scientists 63 D-Index: 74 scientists 64 D-Index: 77 scientists 65 D-Index: 73 scientists 66 D-Index: 64 scientists 67 D-Index: 69 scientists 68 D-Index: 60 scientists 69 D-Index: 39 scientists 70 D-Index: 57 scientists 71 D-Index: 59 scientists 72 D-Index: 46 scientists 73 D-Index: 49 scientists 74 D-Index: 38 scientists 75 D-Index: 35 scientists 76 D-Index: 32 scientists 77 D-Index: 35 scientists 78 D-Index: 31 scientists 79 D-Index: 22 scientists 80 D-Index: 34 scientists 81 D-Index: 31 scientists 82 D-Index: 34 scientists 83 D-Index: 23 scientists 84 D-Index: 18 scientists 85 D-Index: 30 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 20 scientists 89 D-Index: 8 scientists 90 D-Index: 17 scientists 91 D-Index: 7 scientists 92 D-Index: 14 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 12 scientists 97 D-Index: 10 scientists 98 D-Index: 10 scientists 99 D-Index: 12 scientists 100 D-Index: 16 scientists 101 D-Index: 5 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 8 scientists 105 D-Index: 9 scientists 106 D-Index: 13 scientists 107 D-Index: 4 scientists 108 D-Index: 5 scientists 109 D-Index: 10 scientists 110 D-Index: 8 scientists 111+ D-Index: 96 scientists
30 D-Index 111+

This scientist: 46 D-Index — 52nd percentile

52% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 111 D-Index or more.

View D-Index distribution as a table
Number of Electronics and Electrical Engineering scientists by D-index, Research.com 2026 ranking edition. Based on 6,875 ranked scientists.
D-Index Scientists This scientist
30 178
31 257
32 263
33 262
34 244
35 236
36 211
37 220
38 214
39 214
40 205
41 187
42 194
43 201
44 155
45 189
46 148 46
47 160
48 134
49 130
50 141
51 156
52 108
53 130
54 112
55 97
56 111
57 102
58 108
59 120
60 103
61 93
62 92
63 74
64 77
65 73
66 64
67 69
68 60
69 39
70 57
71 59
72 46
73 49
74 38
75 35
76 32
77 35
78 31
79 22
80 34
81 31
82 34
83 23
84 18
85 30
86 19
87 19
88 20
89 8
90 17
91 7
92 14
93 9
94 15
95 10
96 12
97 10
98 10
99 12
100 16
101 5
102 7
103 7
104 8
105 9
106 13
107 4
108 5
109 10
110 8
111+ 96
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Overview

Shigenobu Yamakoshi is affiliated with Fujitsu in Japan and has contributed extensively to research in the fields of Materials Science and Energy. Their work primarily focuses on the chemistry and physics of oxide materials, emphasizing Ga2O3 and related compounds, as well as ZnO doping and properties. The scientist's expertise spans materials chemistry, electronic, optical, and magnetic materials, along with renewable energy, sustainability, and environmental studies.

Yamakoshi's research covers several key topics:

  • Ga2O3 and related materials
  • ZnO doping and properties
  • Advanced Photocatalysis Techniques
  • Electronic and Structural Properties of Oxides

Frequent collaborators with whom Yamakoshi has co-authored work include Akito Kuramata, Kohei Sasaki, Yuki Ueda, Takuya Igarashi, and Kimiyoshi Koshi. The scientist has published predominantly in the following venues:

  • Applied Physics Letters
  • Japanese Journal of Applied Physics
  • ECS Journal of Solid State Science and Technology
  • physica status solidi (b)

Representative publications illustrate the focus on Ga2O3 crystal growth and properties:

  • Two-inch Fe-doped β-Ga2O3 (010) substrates prepared using vertical Bridgman method, 2023, Japanese Journal of Applied Physics
  • Effect of substrate orientation on homoepitaxial growth of β-Ga2O3 by halide vapor phase epitaxy, 2022, Applied Physics Letters
  • Effects of Oxygen Annealing of β-Ga2O3 Epilayers on the Properties of Vertical Schottky Barrier Diodes, 2020, ECS Journal of Solid State Science and Technology
  • Growth of 6 Inch Diameter β-Ga2O3 Crystal by the Vertical Bridgman Method, 2025, physica status solidi (b)
  • Selective observation of transverse optical phonons of Au modes to evaluate free charge carrier parameters in β-Ga2O3 substrate and homoepitaxial film, 2021, Applied Physics Letters

Yamakoshi's contributions reflect interdisciplinary aspects of materials science, combining advanced crystal growth techniques with electrical and optical characterization of oxides. Their research also intersects with studies on photocatalysis and environmental sustainability through energy-related applications.

Best Publications

  • Gallium oxide (Ga2O3) metal-semiconductor field-effect transistors on single-crystal β-Ga2O3 (010) substrates

    Masataka Higashiwaki;Kohei Sasaki;Akito Kuramata;Takekazu Masui

  • Recent progress in Ga2O3 power devices

    Masataka Higashiwaki;Kohei Sasaki;Hisashi Murakami;Yoshinao Kumagai

  • High-quality β-Ga2O3 single crystals grown by edge-defined film-fed growth

    Akito Kuramata;Kimiyoshi Koshi;Shinya Watanabe;Yu Yamaoka

  • Depletion-mode Ga2O3 metal-oxide-semiconductor field-effect transistors on β-Ga2O3 (010) substrates and temperature dependence of their device characteristics

    Masataka Higashiwaki;Kohei Sasaki;Takafumi Kamimura;Man Hoi Wong

  • Device-Quality β-Ga2O3 Epitaxial Films Fabricated by Ozone Molecular Beam Epitaxy

    Kohei Sasaki;Akito Kuramata;Takekazu Masui;Encarnación G. Víllora

  • Development of gallium oxide power devices

    Masataka Higashiwaki;Kohei Sasaki;Akito Kuramata;Takekazu Masui

  • 1-kV vertical Ga2O3 field-plated Schottky barrier diodes

    Keita Konishi;Ken Goto;Hisashi Murakami;Yoshinao Kumagai

  • Field-Plated Ga 2 O 3 MOSFETs With a Breakdown Voltage of Over 750 V

    ManHoi Wong;Kohei Sasaki;Akito Kuramata;Shigenobu Yamakoshi

  • Field-Plated Ga 2 O 3 MOSFETs With a Breakdown Voltage of Over 750 V

    Man Hoi Wong;Kohei Sasaki;Akito Kuramata;Shigenobu Yamakoshi

  • $\hbox{Ga}_{2} \hbox{O}_{3}$ Schottky Barrier Diodes Fabricated by Using Single-Crystal $eta$ – $\hbox{Ga}_{2} \hbox{O}_{3}$ (010) Substrates

    K. Sasaki;M. Higashiwaki;A. Kuramata;T. Masui

  • Stability in single longitudinal mode operation in GaInAsP/InP phase-adjusted DFB lasers

    H. Soda;Y. Kotaki;H. Sudo;H. Ishikawa

  • Temperature-dependent capacitance–voltage and current–voltage characteristics of Pt/Ga2O3 (001) Schottky barrier diodes fabricated on n––Ga2O3 drift layers grown by halide vapor phase epitaxy

    Masataka Higashiwaki;Keita Konishi;Kohei Sasaki;Ken Goto

  • Si-Ion Implantation Doping in β-Ga2O3 and Its Application to Fabrication of Low-Resistance Ohmic Contacts

    Kohei Sasaki;Masataka Higashiwaki;Akito Kuramata;Takekazu Masui

  • MBE grown Ga2O3 and its power device applications

    Kohei Sasaki;Masataka Higashiwaki;Masataka Higashiwaki;Akito Kuramata;Takekazu Masui

  • First Demonstration of Ga 2 O 3 Trench MOS-Type Schottky Barrier Diodes

    Kohei Sasaki;Daiki Wakimoto;Quang Tu Thieu;Yuki Koishikawa

  • Band alignment and electrical properties of Al2O3/β-Ga2O3 heterojunctions

    Takafumi Kamimura;Kohei Sasaki;Man Hoi Wong;Daivasigamani Krishnamurthy

  • Halide vapor phase epitaxy of Si doped β-Ga2O3 and its electrical properties

    Ken Goto;Keita Konishi;Hisashi Murakami;Yoshinao Kumagai

  • Enhancement-mode Ga2O3 MOSFETs with Si-ion-implanted source and drain

    Man Hoi Wong;Yoshiaki Nakata;Akito Kuramata;Shigenobu Yamakoshi

  • Growth temperature dependences of structural and electrical properties of Ga2O3 epitaxial films grown on β-Ga2O3 (010) substrates by molecular beam epitaxy

    Kohei Sasaki;Masataka Higashiwaki;Akito Kuramata;Takekazu Masui

  • Carrier confinement observed at modulation-doped β-(Al x Ga1− x )2O3/Ga2O3 heterojunction interface

    Takayoshi Oshima;Yuji Kato;Naoto Kawano;Akito Kuramata

  • Electron channel mobility in silicon-doped Ga2O3 MOSFETs with a resistive buffer layer

    Man Hoi Wong;Kohei Sasaki;Akito Kuramata;Shigenobu Yamakoshi

Frequent Co-Authors

Akito Kuramata
Akito Kuramata Novel Crystal Technology, Inc
Masataka Higashiwaki
Masataka Higashiwaki Osaka Metropolitan University
Kohei Sasaki
Kohei Sasaki Novel Crystal Technology, Inc
Man Hoi Wong
Man Hoi Wong Hong Kong University of Science and Technology
Yoshinao Kumagai
Yoshinao Kumagai Tokyo University of Agriculture and Technology
Bo Monemar
Bo Monemar Linköping University
Osamu Wada
Osamu Wada Kobe University
Yoshiaki Nakata
Yoshiaki Nakata University of Tokyo
Makoto Kasu
Makoto Kasu Saga University
Takeshi Ohshima
Takeshi Ohshima Japan Atomic Energy Agency

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