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Kazuhiro Imai

Kazuhiro Imai

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 70 5895 5348 369 345 431 16367

Kazuhiro Imai publications per year

The chart shows the history of publications by Kazuhiro Imai between 1966 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kazuhiro Imai published across 60 years, from 1966 to 2025, averaging 8 papers a year. Output peaked at 23 publications in 1999. 1 of the 480 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1966 to 2025. Vertical axis: number of publications, 0 to 23. Peak 23 publications in 1999. 1966: 1 publication 1967: 1 publication 1968: 1 publication 1969: 0 publications 1970: 3 publications 1971: 3 publications 1972: 4 publications 1973: 0 publications 1974: 3 publications 1975: 2 publications 1976: 2 publications 1977: 5 publications 1978: 2 publications 1979: 2 publications 1980: 8 publications 1981: 6 publications 1982: 3 publications 1983: 10 publications 1984: 9 publications 1985: 9 publications 1986: 7 publications 1987: 8 publications 1988: 10 publications 1989: 18 publications 1990: 13 publications 1991: 16 publications 1992: 12 publications 1993: 10 publications 1994: 14 publications 1995: 16 publications 1996: 12 publications 1997: 21 publications 1998: 19 publications 1999: 23 publications 2000: 22 publications 2001: 16 publications 2002: 22 publications 2003: 19 publications 2004: 15 publications 2005: 21 publications 2006: 13 publications 2007: 12 publications 2008: 11 publications 2009: 7 publications 2010: 6 publications 2011: 5 publications 2012: 6 publications 2013: 4 publications 2014: 6 publications 2015: 4 publications 2016: 2 publications 2017: 1 publication 2018: 2 publications 2019: 1 publication 2020: 4 publications 2021: 5 publications 2022: 1 publication 2023: 1 publication 2024: 0 publications 2025: 1 publication
1966 2025

480 publications in total across all disciplines

View publications per year as a table
Kazuhiro Imai: publications per year, 1966 to 2025
Year Publications
1966 1
1967 1
1968 1
1969 0
1970 3
1971 3
1972 4
1973 0
1974 3
1975 2
1976 2
1977 5
1978 2
1979 2
1980 8
1981 6
1982 3
1983 10
1984 9
1985 9
1986 7
1987 8
1988 10
1989 18
1990 13
1991 16
1992 12
1993 10
1994 14
1995 16
1996 12
1997 21
1998 19
1999 23
2000 22
2001 16
2002 22
2003 19
2004 15
2005 21
2006 13
2007 12
2008 11
2009 7
2010 6
2011 5
2012 6
2013 4
2014 6
2015 4
2016 2
2017 1
2018 2
2019 1
2020 4
2021 5
2022 1
2023 1
2024 0
2025 1
Total 480
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Kazuhiro Imai publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Kazuhiro Imai sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 421–440 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 431 publications — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327 431
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Kazuhiro Imai D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Kazuhiro Imai sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 70–71 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 70 D-Index — 68th percentile

68% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646 70
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Kazuhiro Imai is affiliated with the University of Tokyo in Japan. Their research contributions span various domains including spectroscopy, computational mechanics, immunology, building and construction, and aerospace engineering.

Their recent publications include:

  • FFVHC-ACE: Fully Automated Cartesian-Grid-Based Solver for Compressible Large-Eddy Simulation (2023), AIAA Journal
  • Recent Progress in FD-LC-MS/MS Proteomics Method (2021), Frontiers in Chemistry
  • Phenyl-bonded monolithic silica capillary column liquid chromatographic separation and detection of fluorogenic derivatized intact proteins (2021), Biomedical Chromatography
  • Issue Information (2022), Biomedical Chromatography
  • Issue Information (2020), Biomedical Chromatography

They have collaborated frequently with a number of researchers, including:

  • Lewis Couchman
  • D Perrett
  • Michael G. Bartlett
  • Nuggehally R. Srinivas
  • Paul Trevorrow

The venues where their works are predominantly published are as follows:

  • Biomedical Chromatography
  • AIAA Journal
  • Frontiers in Chemistry
  • UNC Libraries
  • Journal of Agricultural Economics

Their scientific focus covers areas including:

  • Spectroscopy
  • Computational Mechanics
  • Immunology
  • Building and Construction
  • Aerospace Engineering

Key topics explored in their research consist of:

  • Mass Spectrometry Techniques and Applications
  • Computational Fluid Dynamics and Aerodynamics
  • Fluid Dynamics and Turbulent Flows
  • Plasma and Flow Control in Aerodynamics
  • Advanced Proteomics Techniques and Applications
  • Metabolomics and Mass Spectrometry Studies
  • Analytical Chemistry and Chromatography

Best Publications

  • Decreased serum levels of D-serine in patients with schizophrenia: evidence in support of the N-methyl-D-aspartate receptor hypofunction hypothesis of schizophrenia.

    Kenji Hashimoto;Takeshi Fukushima;Eiji Shimizu;Naoya Komatsu

  • A simple and sensitive assay of total serum bile acids

    Fumiko Mashige;Kazuhiro Imai;Toshiaki Osuga

  • Determination of fluorescent compounds by high performance liquid chromatography with chemiluminescence detection

    Shinichiro. Kobayashi;Kazuhiro. Imai

  • Fluorimetric determination of secondary amino acids by 7-fluoro-4-nitrobenzo-2-oxa-1,3-diazole

    K. Imai;Y. Watanabe

  • D-Aspartate stimulation of testosterone synthesis in rat Leydig cells.

    Yoshiko Nagata;Hiroshi Homma;Jen Ai Lee;Kazuhiro Imai

  • A novel fluorogenic reagent for thiols : ammonium 7-fluorobenzo-2-oxa-1, 3-diazole-4-sulfonate

    Kazuhiro Imai;Toshimasa Toyo'oka;Yoshihiko Watanabe

  • High-performance liquid chromatography and fluorometric detection of biologically important thiols, derivatized with ammonium 7-fluorobenzo-2-oxa-1,3-diazole-4-sulphonate (SBD-F)

    Toshimasa Toyo'oka;Kazuhiro Imai

  • New fluorogenic reagent having halogenobenzofurazan structure for thiols: 4-(aminosulfonyl)-7-fluoro-2,1,3-benzoxadiazole

    Toshimasa. Toyooka;Kazuhiro. Imai

  • High-performance liquid chromatography and sensitive detection of amino acids derivatized with 7-fluoro-4-nitrobenzo-2-oxa-1,3-diazole.

    Yoshihiko Watanabe;Kazuhiro Imai

  • Fluorogenic and fluorescent labeling reagents with a benzofurazan skeleton.

    Seiichi Uchiyama;Tomofumi Santa;Natsuko Okiyama;Takeshi Fukushima

  • An HPLC assay of hydroxyl radicals by the hydroxylation reaction of terephthalic acid

    Li Linxiang;Yoshihiro Abe;Yukiko Nagasawa;Risa Kudo

  • Oligosaccharides and polysaccharides specifically utilizable by bifidobacteria.

    Kouhei Yazawa;Kazuhiro Imai;Zenzo Tamura

  • Pre-column labelling for high-performance liquid chromatography of amino acids with 7-fluoro-4-nitrobenzo-2-oxa-1,3-diazole and its application to protein hydrolysates☆

    Yoshihiko Watanabe;Kazuhiro Imai

  • Application of high-performance liquid chromatography with a chemiluminescence detection system to determine catecholamines in urine.

    Shin-Ichiro Kobayashi;Jun Sekino;Kazumasa Honda;Kazuhiro Imai

  • LOCALIZATION OF D-ASPARTIC ACID IN ELONGATE SPERMATIDS IN RAT TESTIS

    Kumiko Sakai;Hiroshi Homma;Jen Ai Lee;Takeshi Fukushima

  • D-aspartate uptake into cultured rat pinealocytes and the concomitant effect on L-aspartate levels and melatonin secretion.

    Yuki Takigawa;Hiroshi Homma;Jen Ai Lee;Takeshi Fukushima

  • Fluorigenic reagents for primary and secondary amines and thiols in high-performance liquid chromatography. A review

    Kazuhiro Imai;Toshimasa Toyo'oka;Hiroshi Miyano

  • Possible role of D-serine in the pathophysiology of Alzheimer's disease.

    Kenji Hashimoto;Takeshi Fukushima;Eiji Shimizu;Shin-ichi Okada

  • Recent progress in derivatization methods for LC and CE analysis

    Takeshi Fukushima;Noriko Usui;Tomofumi Santa;Kazuhiro Imai

  • Analytical applications of peroxyoxalate chemiluminescence

    Unknown

  • Precolumn fluorescence tagging reagent for carboxylic acids in high-performance liquid chromatography: 4-substituted-7-aminoalkylamino-2,1,3-benzoxadiazoles.

    Toshimasa Toyo'oka;Mumio Ishibashi;Yasushi Takeda;Kenichiro Nakashima

Frequent Co-Authors

Toshimasa Toyo'oka
Toshimasa Toyo'oka University of Shizuoka
Kenichiro Nakashima
Kenichiro Nakashima Nagasaki University
Willy R. G. Baeyens
Willy R. G. Baeyens Ghent University
Kozo Nakamura
Kozo Nakamura Shinshu University
Takeshi Iwatsubo
Takeshi Iwatsubo University of Tokyo
Kazuichi Hayakawa
Kazuichi Hayakawa Kanazawa University
Ichiro Kudo
Ichiro Kudo Showa University
Hidetoshi Tokuyama
Hidetoshi Tokuyama Tohoku University
Makoto Murakami
Makoto Murakami University of Tokyo
Keizo Inoue
Keizo Inoue University of Tokyo

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