Best Medicine Scientists in Japan

The 1st edition of Research.com ranking of top Medicine scientists is based on data collected from Microsoft Academic Graph on December 6th, 2021. Position in the ranking is based on a scientist's D-index (Discipline H-index), which only includes papers and citation values for an examined discipline. Show more

Our best scientists ranking is a reliable list of leading scientists from the area of Medicine, based on a meticulous examination of 166,880 scientists on Microsoft Academic Graph. For the discipline of Medicine, over 65,743 profiles were examined.

The D-index threshold for approving a scholar to be considered is set to 70 if most of their publications are in the field of Medicine. The inclusion criteria for scholars to be considered into the ranking of top scientists are based on the D-index, proportion of the contributions made within the given discipline in addition to the awards and achievements of the scientists. The D-index threshold for listing top scientists is set as an increment of 10 depending on the total number of researchers estimated for each discipline whilst ensuring that the top 1% of leading scientists are considered into the ranking. There should be a proximity of 30% or less between a scientist's general H-index and their D-index.

Because the main goal is to ensure that only genuine researchers are included in the ranking we believe that numbers are never meant to be an absolute measure to quantify the contributions of scientists. This is why we manually verify each profile and cross-correlate it against publications in a wide range of credible sources. Even though it’s not a metric defining a scientist’s position in the ranking, the amount of documents published in major journals and conference proceedings should constitute a reliable secondary indication of their contribution to research in a given discipline. Position in the ranking is based on each scientist’s D-index using data compiled from Microsoft Graph, which is the most prominent and well-established bibliometric database of this type available to the scientific community. A detailed definition of our research process can be found on our methodology page .

Our aim is to inspire scholars, entrepreneurs, and decision-makers worldwide to explore where leading experts are heading and to provide an opportunity for the entire scientific community to discover who the leading experts in specific fields of research, in different countries, or even within research institutions are.

World
National
Scholar
D-Index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines.
Citations
Publications
14 World 1 National Shizuo Akira

Shizuo Akira

Osaka University, Japan
D-index 248 Citations 286,384 886
108 World 2 National Yoshihiro Kawaoka

Yoshihiro Kawaoka

University of Tokyo, Japan
D-index 184 Citations 118,946 998
146 World 3 National Yusuke Nakamura

Yusuke Nakamura

Japanese Foundation For Cancer Research, Japan
D-index 175 Citations 110,697 1,146
197 World 4 National Tadamitsu Kishimoto

Tadamitsu Kishimoto

Osaka University, Japan
D-index 169 Citations 127,893 565
281 World 5 National Kenji Kangawa

Kenji Kangawa

National Cerebral and Cardiovascular Center, Japan
D-index 159 Citations 125,960 923
284 World 6 National Yuji Matsuzawa

Yuji Matsuzawa

Osaka University, Japan
D-index 159 Citations 147,828 687
541 World 7 National Hideo Yagita

Hideo Yagita

Juntendo University, Japan
D-index 144 Citations 77,373 783
572 World 8 National Kazuwa Nakao

Kazuwa Nakao

Kyoto University, Japan
D-index 143 Citations 83,115 896
655 World 9 National Yoichiro Iwakura

Yoichiro Iwakura

Tokyo University of Science, Japan
D-index 140 Citations 75,049 582
681 World 10 National Takashi Kadowaki

Takashi Kadowaki

University of Tokyo, Japan
D-index 139 Citations 100,647 674
816 World 11 National Masatoshi Makuuchi

Masatoshi Makuuchi

University of Tokyo, Japan
D-index 136 Citations 82,757 983
853 World 12 National Ryozo Nagai

Ryozo Nagai

Jichi Medical University, Japan
D-index 134 Citations 79,263 896
925 World 13 National Kouji Matsushima

Kouji Matsushima

Tokyo University of Science, Japan
D-index 132 Citations 63,764 480
998 World 14 National Shimon Sakaguchi

Shimon Sakaguchi

Osaka University, Japan
D-index 130 Citations 114,530 354
1057 World 15 National Kazuo Tsubota

Kazuo Tsubota

Keio University, Japan
D-index 129 Citations 65,481 1,209
1122 World 16 National Tohru Funahashi

Tohru Funahashi

Osaka University, Japan
D-index 128 Citations 100,069 383
1123 World 17 National Hiroaki Shimokawa

Hiroaki Shimokawa

Tohoku University, Japan
D-index 128 Citations 65,214 815
1151 World 18 National Masatsugu Hori

Masatsugu Hori

Osaka University, Japan
D-index 127 Citations 56,002 748
1228 World 19 National Ko Okumura

Ko Okumura

Juntendo University, Japan
D-index 125 Citations 54,838 694
1291 World 20 National Masao Omata

Masao Omata

University of Tokyo, Japan
D-index 124 Citations 58,983 857
1302 World 21 National Kazuaki Chayama

Kazuaki Chayama

Hiroshima University, Japan
D-index 124 Citations 62,770 1,345
1385 World 22 National Toshikazu Nakamura

Toshikazu Nakamura

Osaka University, Japan
D-index 122 Citations 50,070 520
1461 World 23 National Masashi Yanagisawa

Masashi Yanagisawa

University of Tsukuba, Japan
D-index 121 Citations 76,807 374
1462 World 24 National Kiyoshi Takeda

Kiyoshi Takeda

Osaka University, Japan
D-index 121 Citations 87,124 304
1598 World 25 National Masaki Mori

Masaki Mori

Kyushu University, Japan
D-index 119 Citations 62,365 1,649
1634 World 26 National Masatoshi Kudo

Masatoshi Kudo

Kindai University, Japan
D-index 119 Citations 65,666 1,156
1662 World 27 National Yuichi Sugiyama

Yuichi Sugiyama

University of Tokyo, Japan
D-index 118 Citations 44,969 561
1673 World 28 National Toshiro Fujita

Toshiro Fujita

University of Tokyo, Japan
D-index 118 Citations 52,665 652
1802 World 29 National Hideyuki Okano

Hideyuki Okano

Keio University, Japan
D-index 116 Citations 51,619 634
1805 World 30 National Akihiko Yoshimura

Akihiko Yoshimura

Keio University, Japan
D-index 116 Citations 47,558 341
1871 World 31 National Hisao Ogawa

Hisao Ogawa

Kumamoto University, Japan
D-index 116 Citations 58,454 855
2031 World 32 National Yasuni Nakanuma

Yasuni Nakanuma

Kanazawa University, Japan
D-index 114 Citations 53,810 783
2092 World 33 National Yoshihiro Ogawa

Yoshihiro Ogawa

Kyushu University, Japan
D-index 113 Citations 50,012 548
2115 World 34 National Tetsuya Mitsudomi

Tetsuya Mitsudomi

Kindai University, Japan
D-index 113 Citations 56,749 472
2129 World 35 National Hiroaki Okamoto

Hiroaki Okamoto

Jichi Medical University, Japan
D-index 113 Citations 49,448 591
2161 World 36 National Shuh Narumiya

Shuh Narumiya

Kyoto University, Japan
D-index 112 Citations 38,602 342
2185 World 37 National Issei Komuro

Issei Komuro

University of Tokyo, Japan
D-index 112 Citations 46,751 1,003
2279 World 38 National Makoto Mark Taketo

Makoto Mark Taketo

Kyoto University, Japan
D-index 111 Citations 45,326 280
2318 World 39 National Keizo Sugimachi

Keizo Sugimachi

Kyushu University, Japan
D-index 111 Citations 43,380 961
2437 World 40 National Hironobu Sasano

Hironobu Sasano

Tohoku University, Japan
D-index 110 Citations 54,223 1,098
2502 World 41 National Yoshio Yazaki

Yoshio Yazaki

University of Tokyo, Japan
D-index 109 Citations 34,861 455
2516 World 42 National Michiaki Kubo

Michiaki Kubo

Kyushu University, Japan
D-index 109 Citations 40,160 480
2536 World 43 National Toshio Ogihara

Toshio Ogihara

Osaka University, Japan
D-index 109 Citations 41,402 714
2600 World 44 National Hiroyasu Iso

Hiroyasu Iso

Osaka University, Japan
D-index 109 Citations 46,273 764
2647 World 45 National Yasushi Yatabe

Yasushi Yatabe

Nagoya University, Japan
D-index 108 Citations 56,984 538
2844 World 46 National Kohzoh Imai

Kohzoh Imai

University of Tokyo, Japan
D-index 106 Citations 35,797 516
2852 World 47 National Keitaro Matsuo

Keitaro Matsuo

Nagoya University, Japan
D-index 106 Citations 38,453 700
2987 World 48 National Yoshihiko Maehara

Yoshihiko Maehara

Kyushu University, Japan
D-index 105 Citations 45,682 1,530
3086 World 49 National Naofumi Mukaida

Naofumi Mukaida

Kanazawa University, Japan
D-index 104 Citations 34,550 309
3122 World 50 National Toyoaki Murohara

Toyoaki Murohara

Nagoya University, Japan
D-index 104 Citations 60,269 990
3139 World 51 National Takayoshi Ohkubo

Takayoshi Ohkubo

Teikyo University, Japan
D-index 104 Citations 89,437 619
3213 World 52 National Takashi Tsuruo

Takashi Tsuruo

Japanese Foundation For Cancer Research, Japan
D-index 103 Citations 42,514 431
3345 World 53 National Hiroyuki Aburatani

Hiroyuki Aburatani

University of Tokyo, Japan
D-index 102 Citations 41,973 377
3382 World 54 National Hideki Yoshikawa

Hideki Yoshikawa

Osaka University, Japan
D-index 102 Citations 35,765 825
3398 World 55 National Yoshiaki Toyama

Yoshiaki Toyama

Keio University, Japan
D-index 102 Citations 35,394 586
3449 World 56 National Kensuke Egashira

Kensuke Egashira

Kyushu University, Japan
D-index 102 Citations 34,298 313
3502 World 57 National Toru Kita

Toru Kita

Kyoto University, Japan
D-index 101 Citations 34,423 490
3510 World 58 National Tatsuo Suda

Tatsuo Suda

Saitama Medical University, Japan
D-index 101 Citations 50,967 243
3521 World 59 National Yasufumi Kaneda

Yasufumi Kaneda

Osaka University, Japan
D-index 101 Citations 33,695 436
3538 World 60 National Masao Tanaka

Masao Tanaka

Kyushu University, Japan
D-index 101 Citations 41,288 836
3696 World 61 National Gen Sobue

Gen Sobue

Nagoya University, Japan
D-index 100 Citations 35,431 761
3703 World 62 National Tsutomu Chiba

Tsutomu Chiba

Kyoto University, Japan
D-index 100 Citations 37,719 718
3714 World 63 National Ryuichi Morishita

Ryuichi Morishita

Osaka University, Japan
D-index 100 Citations 34,135 513
3725 World 64 National Michiie Sakamoto

Michiie Sakamoto

Keio University, Japan
D-index 100 Citations 31,623 401
3764 World 65 National Hirofumi Yasue

Hirofumi Yasue

Kumamoto University, Japan
D-index 100 Citations 36,374 314
3833 World 66 National Akira Takeshita

Akira Takeshita

Kyushu University, Japan
D-index 100 Citations 32,783 456
3862 World 67 National Koichi Akashi

Koichi Akashi

Kyushu University, Japan
D-index 99 Citations 46,248 561
3910 World 68 National Kazuhiko Nakagawa

Kazuhiko Nakagawa

Kindai University, Japan
D-index 99 Citations 47,979 800
3984 World 69 National Norihiro Kokudo

Norihiro Kokudo

University of Tokyo, Japan
D-index 99 Citations 38,810 729
4034 World 70 National Masaya Tohyama

Masaya Tohyama

Kindai University, Japan
D-index 98 Citations 32,631 500
4058 World 71 National Hiroshi Itoh

Hiroshi Itoh

Keio University, Japan
D-index 98 Citations 37,618 679
4064 World 72 National Shigeru Kinoshita

Shigeru Kinoshita

Kyoto Prefectural University of Medicine, Japan
D-index 98 Citations 34,372 670
4092 World 73 National Shuichi Kaneko

Shuichi Kaneko

Kanazawa University, Japan
D-index 98 Citations 32,144 690
4119 World 74 National Ryuzo Ueda

Ryuzo Ueda

Aichi Medical University, Japan
D-index 98 Citations 34,543 524
4128 World 75 National Shinichi Sato

Shinichi Sato

University of Tokyo, Japan
D-index 98 Citations 30,641 678
4162 World 77 National Masazumi Tsuneyoshi

Masazumi Tsuneyoshi

Kyushu University, Japan
D-index 98 Citations 32,551 554
4165 World 78 National Hideo Baba

Hideo Baba

Kumamoto University, Japan
D-index 98 Citations 38,905 1,239
4167 World 76 National Toshifumi Hibi

Toshifumi Hibi

Kitasato University, Japan
D-index 98 Citations 34,731 700
4230 World 79 National Tatsuhiko Tsunoda

Tatsuhiko Tsunoda

University of Tokyo, Japan
D-index 97 Citations 29,669 228
4237 World 80 National Takashi Takahashi

Takashi Takahashi

Nagoya University, Japan
D-index 97 Citations 42,622 368
4282 World 81 National Takenobu Kamada

Takenobu Kamada

Osaka University, Japan
D-index 97 Citations 32,288 566
4367 World 82 National Manami Inoue

Manami Inoue

University of Tokyo, Japan
D-index 97 Citations 48,562 466
4377 World 83 National Hiroyuki Kuwano

Hiroyuki Kuwano

Gunma University, Japan
D-index 97 Citations 34,726 1,010
4398 World 84 National Osamu Takeuchi

Osamu Takeuchi

Kyoto University, Japan
D-index 96 Citations 84,829 167
4437 World 85 National Takashi Suzuki

Takashi Suzuki

Tohoku University, Japan
D-index 96 Citations 30,684 618
4486 World 86 National Masashi Mizokami

Masashi Mizokami

Nagoya City University, Japan
D-index 96 Citations 43,318 572
4501 World 87 National Hirofumi Makino

Hirofumi Makino

Okayama University, Japan
D-index 96 Citations 40,033 702
4542 World 89 National Akiko Tamakoshi

Akiko Tamakoshi

Hokkaido University, Japan
D-index 96 Citations 29,601 539
4569 World 88 National Shinji Kihara

Shinji Kihara

Osaka University, Japan
D-index 96 Citations 66,355 184
4622 World 90 National Toshio Miyata

Toshio Miyata

Tohoku University, Japan
D-index 95 Citations 26,705 291
4666 World 91 National Shigeo Nakamura

Shigeo Nakamura

Nagoya University, Japan
D-index 95 Citations 34,038 584
4703 World 92 National Yutaka Kiyohara

Yutaka Kiyohara

Kyushu University, Japan
D-index 95 Citations 31,487 325
4709 World 93 National Atsushi Ochiai

Atsushi Ochiai

University of Tokyo, Japan
D-index 95 Citations 30,025 485
4745 World 94 National Ichiro Tsuji

Ichiro Tsuji

Tohoku University, Japan
D-index 95 Citations 33,680 540
4826 World 95 National Shigeaki Kato

Shigeaki Kato

University of Tokyo, Japan
D-index 94 Citations 32,827 296
4886 World 97 National Yoshihiko Saito

Yoshihiko Saito

Nara Medical University, Japan
D-index 94 Citations 35,572 527
4890 World 96 National Kunio Matsumoto

Kunio Matsumoto

Kanazawa University, Japan
D-index 94 Citations 28,896 369
4896 World 98 National Masashi Fukayama

Masashi Fukayama

University of Tokyo, Japan
D-index 94 Citations 29,196 612
4934 World 99 National Toshiharu Ninomiya

Toshiharu Ninomiya

Kyushu University, Japan
D-index 94 Citations 43,202 380
5018 World 100 National Yutaka Imai

Yutaka Imai

Tohoku University, Japan
D-index 94 Citations 45,684 526

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