Best Computer Science Scientists in Japan

The 8th edition of Research.com ranking of top Computer Science 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 Computer Science, based on a meticulous examination of 166,880 scientists on Microsoft Academic Graph. For the discipline of Computer Science, over 9,735 profiles were examined.

The D-index threshold for approving a scholar to be considered is set to 30 if most of their publications are in the field of Computer Science. 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
343 World 1 National Shun-ichi Amari

Shun-ichi Amari

RIKEN Center for Brain Science, Japan
D-index 84 Citations 41,842 303
516 World 2 National Hiroshi Ishiguro

Hiroshi Ishiguro

Osaka University, Japan
D-index 77 Citations 21,042 566
659 World 3 National Katsushi Ikeuchi

Katsushi Ikeuchi

University of Tokyo, Japan
D-index 73 Citations 19,485 443
846 World 4 National Nei Kato

Nei Kato

Tohoku University, Japan
D-index 70 Citations 17,682 403
967 World 6 National Takeo Igarashi

Takeo Igarashi

University of Tokyo, Japan
D-index 68 Citations 16,231 311
977 World 5 National Jun'ichi Tsujii

Jun'ichi Tsujii

National Institute of Advanced Industrial Science and Technology, Japan
D-index 68 Citations 19,787 369
1245 World 7 National Jamey Graham

Jamey Graham

Ricoh (Japan), Japan
D-index 64 Citations 10,380 114
1255 World 8 National Takayuki Kanda

Takayuki Kanda

Kyoto University, Japan
D-index 63 Citations 14,488 277
1354 World 9 National Brant L. Candelore

Brant L. Candelore

Sony (Japan), Japan
D-index 62 Citations 10,911 182
1422 World 10 National Mitsuo Gen

Mitsuo Gen

Fuzzy Logic Systems Institute, Japan
D-index 61 Citations 31,320 314
1442 World 11 National Junichi Yamagishi

Junichi Yamagishi

National Institute of Informatics, Japan
D-index 61 Citations 13,512 364
1604 World 12 National Masashi Sugiyama

Masashi Sugiyama

University of Tokyo, Japan
D-index 59 Citations 15,746 408
1728 World 13 National Yoichi Sato

Yoichi Sato

University of Tokyo, Japan
D-index 58 Citations 11,553 232
1761 World 14 National Toshihide Ibaraki

Toshihide Ibaraki

Kwansei Gakuin University, Japan
D-index 58 Citations 11,713 237
1780 World 15 National Satoshi Matsuoka

Satoshi Matsuoka

University of Tokyo, Japan
D-index 58 Citations 13,044 277
1916 World 16 National Mitsuru Ishizuka

Mitsuru Ishizuka

University of Tokyo, Japan
D-index 57 Citations 11,842 351
1960 World 17 National Keiichi Tokuda

Keiichi Tokuda

Nagoya Institute of Technology, Japan
D-index 57 Citations 17,937 299
2105 World 18 National Yuji Matsumoto

Yuji Matsumoto

Tohoku University, Japan
D-index 55 Citations 13,276 341
2421 World 19 National Jean-Claude Junqua

Jean-Claude Junqua

Panasonic (Japan), Japan
D-index 53 Citations 9,726 110
2495 World 20 National Berna Erol

Berna Erol

Ricoh (Japan), Japan
D-index 53 Citations 7,533 107
2496 World 21 National Leonard Barolli

Leonard Barolli

Fukuoka Institute of Technology, Japan
D-index 53 Citations 9,857 758
2537 World 22 National Yoichiro Sako

Yoichiro Sako

Sony (Japan), Japan
D-index 52 Citations 8,793 367
2581 World 23 National Tetsujiro Kondo

Tetsujiro Kondo

Sony (Japan), Japan
D-index 52 Citations 10,837 641
2602 World 24 National Norihiro Hagita

Norihiro Hagita

NTT (Japan), Japan
D-index 52 Citations 9,990 307
2633 World 25 National Masataka Goto

Masataka Goto

National Institute of Advanced Industrial Science and Technology, Japan
D-index 52 Citations 10,956 256
2664 World 26 National Hiroaki Kitano

Hiroaki Kitano

Okinawa Institute of Science and Technology, Japan
D-index 51 Citations 24,345 154
2835 World 27 National Hiroshi G. Okuno

Hiroshi G. Okuno

Waseda University, Japan
D-index 50 Citations 8,690 396
3019 World 28 National Patrick Chiu

Patrick Chiu

Fuji Xerox (Japan), Japan
D-index 49 Citations 8,445 128
3030 World 29 National Hitoshi Iba

Hitoshi Iba

University of Tokyo, Japan
D-index 49 Citations 7,661 215
3047 World 30 National Mianxiong Dong

Mianxiong Dong

Muroran Institute of Technology, Japan
D-index 49 Citations 8,582 271
3092 World 31 National Hiroshi Fujita

Hiroshi Fujita

Gifu University, Japan
D-index 48 Citations 8,173 296
3157 World 32 National Tomoki Toda

Tomoki Toda

Nagoya University, Japan
D-index 48 Citations 10,198 351
3183 World 33 National Kiyoharu Aizawa

Kiyoharu Aizawa

University of Tokyo, Japan
D-index 48 Citations 8,664 445
3216 World 34 National Fumiyuki Adachi

Fumiyuki Adachi

Tohoku University, Japan
D-index 47 Citations 10,533 436
3231 World 35 National Toru Ishida

Toru Ishida

Waseda University, Japan
D-index 47 Citations 8,839 317
3259 World 36 National Miwako Doi

Miwako Doi

Nara Institute of Science and Technology, Japan
D-index 47 Citations 7,265 174
3282 World 37 National Tetsuro Motoyama

Tetsuro Motoyama

Ricoh (Japan), Japan
D-index 47 Citations 6,697 128
3283 World 38 National Yasuyuki Matsushita

Yasuyuki Matsushita

Osaka University, Japan
D-index 47 Citations 9,194 142
3345 World 39 National Tatsuaki Okamoto

Tatsuaki Okamoto

NTT (Japan), Japan
D-index 46 Citations 16,215 159
3356 World 40 National Masayuki Inaba

Masayuki Inaba

University of Tokyo, Japan
D-index 46 Citations 9,176 357
3370 World 41 National Yasuo Kuniyoshi

Yasuo Kuniyoshi

University of Tokyo, Japan
D-index 46 Citations 9,299 192
3438 World 42 National Hiromichi Fujisawa

Hiromichi Fujisawa

Waseda University, Japan
D-index 46 Citations 6,914 152
3440 World 43 National Sadaoki Furui

Sadaoki Furui

Toyota Institute of Technology, Japan
D-index 46 Citations 12,551 262
3461 World 44 National Kiyohiro Shikano

Kiyohiro Shikano

Nara Institute of Science and Technology, Japan
D-index 46 Citations 14,511 374
3564 World 45 National Hiroshi Sawada

Hiroshi Sawada

NTT (Japan), Japan
D-index 45 Citations 8,046 175
3661 World 46 National Koji Tsuda

Koji Tsuda

University of Tokyo, Japan
D-index 44 Citations 11,679 150
3665 World 47 National Kenji Suzuki

Kenji Suzuki

Tokyo Institute of Technology, Japan
D-index 44 Citations 7,943 165
3679 World 48 National Shoji Makino

Shoji Makino

University of Tsukuba, Japan
D-index 44 Citations 7,933 231
3735 World 49 National Jun Rekimoto

Jun Rekimoto

University of Tokyo, Japan
D-index 44 Citations 12,166 179
3779 World 50 National Kaoru Kurosawa

Kaoru Kurosawa

Ibaraki University, Japan
D-index 44 Citations 6,825 185
3849 World 51 National Tatsuya Akutsu

Tatsuya Akutsu

Kyoto University, Japan
D-index 43 Citations 9,261 279
3856 World 52 National Makoto Yokoo

Makoto Yokoo

Kyushu University, Japan
D-index 43 Citations 8,840 178
3923 World 53 National Kaoru Ota

Kaoru Ota

Muroran Institute of Technology, Japan
D-index 43 Citations 7,561 209
3978 World 54 National Yoshiaki Shirai

Yoshiaki Shirai

Ritsumeikan University, Japan
D-index 43 Citations 7,309 230
4047 World 55 National Susumu Tachi

Susumu Tachi

University of Tokyo, Japan
D-index 42 Citations 6,700 234
4054 World 56 National Riichiro Mizoguchi

Riichiro Mizoguchi

Japan Advanced Institute of Science and Technology, Japan
D-index 42 Citations 7,193 259
4107 World 57 National Shoko Araki

Shoko Araki

NTT (Japan), Japan
D-index 42 Citations 7,505 184
4113 World 58 National Masaru Kitsuregawa

Masaru Kitsuregawa

University of Tokyo, Japan
D-index 42 Citations 7,914 360
4216 World 59 National Adrian David Cheok

Adrian David Cheok

i-University Tokyo, Japan
D-index 41 Citations 6,518 250
4266 World 60 National Minoru Asada

Minoru Asada

Osaka University, Japan
D-index 41 Citations 9,706 320
4282 World 61 National Yasushi Yagi

Yasushi Yagi

Osaka University, Japan
D-index 41 Citations 8,711 330
4303 World 62 National Masatoshi Okutomi

Masatoshi Okutomi

Tokyo Institute of Technology, Japan
D-index 41 Citations 13,156 241
4469 World 63 National Kikuo Fujimura

Kikuo Fujimura

Honda Research Institute Japan, Co., Ltd. , Japan
D-index 40 Citations 10,822 106
4478 World 64 National Tomoyuki Nishita

Tomoyuki Nishita

Hiroshima Shudo University, Japan
D-index 40 Citations 5,961 163
4488 World 65 National Kazuhiro Nakadai

Kazuhiro Nakadai

Honda Research Institute Japan, Co., Ltd. , Japan
D-index 40 Citations 6,439 278
4508 World 66 National Tomohiro Nakatani

Tomohiro Nakatani

NTT (Japan), Japan
D-index 40 Citations 6,799 279
4511 World 67 National Ken-ichi Kawarabayashi

Ken-ichi Kawarabayashi

National Institute of Informatics, Japan
D-index 40 Citations 6,425 285
4573 World 68 National Don Kimber

Don Kimber

Fuji Xerox (Japan), Japan
D-index 40 Citations 5,561 103
4683 World 69 National Satoshi Nakamura

Satoshi Nakamura

Nara Institute of Science and Technology, Japan
D-index 39 Citations 8,667 588
4687 World 70 National Kensaku Mori

Kensaku Mori

Nagoya University, Japan
D-index 39 Citations 7,576 294
4733 World 71 National Phong Q. Nguyen

Phong Q. Nguyen

University of Tokyo, Japan
D-index 39 Citations 6,979 73
4738 World 72 National Ning Zhong

Ning Zhong

Maebashi Institute of Technology, Japan
D-index 39 Citations 7,049 281
4750 World 73 National Hiroshi Motoda

Hiroshi Motoda

Osaka University, Japan
D-index 39 Citations 20,666 188
4847 World 74 National Takao Kobayashi

Takao Kobayashi

Tokyo Institute of Technology, Japan
D-index 39 Citations 10,195 195
4852 World 75 National Eiichiro Sumita

Eiichiro Sumita

National Institute of Information and Communications Technology, Japan
D-index 39 Citations 6,387 288
4930 World 76 National Jianhua Ma

Jianhua Ma

Hosei University, Japan
D-index 38 Citations 6,894 385
4959 World 77 National Kazuya Takeda

Kazuya Takeda

Nagoya University, Japan
D-index 38 Citations 7,155 334
4999 World 78 National Hideki Imai

Hideki Imai

Chuo University, Japan
D-index 38 Citations 8,695 352
5061 World 79 National Katsuro Inoue

Katsuro Inoue

Osaka University, Japan
D-index 38 Citations 7,579 240
5166 World 80 National Peter Shintani

Peter Shintani

Sony (Japan), Japan
D-index 37 Citations 4,215 109
5219 World 81 National Mark Eyer

Mark Eyer

Sony (Japan), Japan
D-index 37 Citations 4,372 66
5238 World 82 National Helmut Prendinger

Helmut Prendinger

National Institute of Informatics, Japan
D-index 37 Citations 5,612 185
5385 World 83 National Yutaka Matsuo

Yutaka Matsuo

University of Tokyo, Japan
D-index 37 Citations 12,663 191
5578 World 84 National Makoto Takizawa

Makoto Takizawa

Hosei University, Japan
D-index 36 Citations 8,027 633
5649 World 85 National Ko Nishino

Ko Nishino

Kyoto University, Japan
D-index 36 Citations 6,145 93
5797 World 86 National Masatoshi Ishikawa

Masatoshi Ishikawa

University of Tokyo, Japan
D-index 35 Citations 5,850 342
5814 World 87 National Francine R. Chen

Francine R. Chen

Fuji Xerox (Japan), Japan
D-index 35 Citations 6,890 88
5898 World 88 National Yoshimasa Tsuruoka

Yoshimasa Tsuruoka

University of Tokyo, Japan
D-index 35 Citations 5,903 106
5952 World 89 National Yoichi Yagasaki

Yoichi Yagasaki

Sony (Japan), Japan
D-index 35 Citations 5,028 174
5953 World 90 National Yusuke Miyao

Yusuke Miyao

University of Tokyo, Japan
D-index 35 Citations 5,025 161
5955 World 91 National Hiroki Nishiyama

Hiroki Nishiyama

Tohoku University, Japan
D-index 35 Citations 5,450 175
5956 World 92 National Yusuke Nojima

Yusuke Nojima

Osaka Prefecture University, Japan
D-index 35 Citations 6,988 215
5976 World 93 National Kunihiko Sadakane

Kunihiko Sadakane

University of Tokyo, Japan
D-index 35 Citations 8,201 125
6042 World 94 National Hirokazu Kameoka

Hirokazu Kameoka

NTT (Japan), Japan
D-index 35 Citations 4,972 193
6047 World 95 National Ryutarou Ohbuchi

Ryutarou Ohbuchi

University of Yamanashi, Japan
D-index 35 Citations 6,858 92
6048 World 96 National Akinori Yonezawa

Akinori Yonezawa

University of Tokyo, Japan
D-index 35 Citations 6,717 159
6166 World 97 National Masakazu Matsugu

Masakazu Matsugu

Canon (Japan), Japan
D-index 34 Citations 4,823 82
6291 World 98 National Koji Yatani

Koji Yatani

University of Tokyo, Japan
D-index 34 Citations 5,958 70
6292 World 99 National Takafumi Miyatake

Takafumi Miyatake

Hitachi (Japan), Japan
D-index 34 Citations 6,811 123
6382 World 100 National Hirokazu Kato

Hirokazu Kato

Nara Institute of Science and Technology, Japan
D-index 34 Citations 11,767 163

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