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 Koichi Takeya sits on this spectrum.
This scientist: 414 publications — 82nd percentile
82% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 1,295 publications or more.
The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Koichi Takeya sits on this spectrum.
This scientist: 65 D-Index — 58th percentile
58% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 159 D-Index or more.
Koichi Takeya is affiliated with the University of Tokyo in Japan. Their research primarily spans the fields of biochemistry, genetics, molecular biology, and medicine. Within these domains, Takeya has contributed to studies in molecular biology, pharmacology, biochemistry, plant science, and complementary and alternative medicine.
The scientist's work focuses on various topics related to natural compounds and their biological properties. Key research themes include the biological activity of diterpenoids and biflavonoids, synthesis of organic compounds, traditional and medicinal uses of Annonaceae plants, natural compound pharmacology studies, traditional Chinese medicine analysis, phytochemistry and biological activities, and natural product bioactivities and synthesis.
Takeya has authored publications in a range of scientific journals, with frequent appearances in:
Recent published works by Takeya include:
Takeya frequently collaborates with several researchers, including Yukio Hitotsuyanagi, Yutaka Aoyagi, Reiko Yano, Haruhiko Fukaya, and Tomoyo Hasuda. The collaboration network indicates sustained partnerships within the field.
Yoshiaki Kamano;Ayano Kotake;Hirofumi Hashima;Masuo Inoue
Hideji Itokawa;Kazuhiko Mihara;Koichi Takeya
Hider Itokawa;Nobuo Totsuka;Keisuke Nakahara;Koichi Takeya
Hideji Itokawa;Zedan Z. Ibraheim;Ya-Fang Qiao;Koichi Takeya
Kenji Osawa;Hideyuki Yasuda;Takashi Maruyama;Hiroshi Morita
Hideji Itokawa;Etsuko Kishi;Hiroshi Morita;Koichi Takeya
Yoshiaki Kamano;Ayano Yamashita;Toshihiko Nogawa;Hiroshi Morita
Hideji Itokawa;Koichi Takeya;Kazuhiko Mihara;Noboru Mori
Chieko Hirobe;Zhi-Sheng Qiao;Koichi Takeya;Hideji Itokawa
Hideji Itokawa;Toshihiko Miyashita;Hiroshi Morita;Koichi Takeya
O Shirota;H Morita;K Takeya;H Itokawa
Shin-Ichi Uehara;Ichiro Yasuda;Kazuyuki Akiyama;Hiroshi Morita
H. Itokawa;H. Morita;I. Katou;K. Takeya
Hideji Itokawa;Fusayoshi Hirayama;Kazuko Funakoshi;Koichi Takeya
Hiroshi Morita;Akira Shishido;Teruki Matsumoto;Hideji Itokawa
Hideji Itokawa;Osamu Shirota;Hiroshi Ikuta;Hiroshi Morita
Hideji Itokawa;Hiroshi Morita;Takayoshi Sumitomo;Nobuo Totsuka
Hiroshi Morita;Etsuko Kishi;Koichi Takeya;Hideji Itokawa
Yukio Hitotsuyanagi;Masamoto Fukuyo;Kyoko Tsuda;Masatsugu Kobayashi
Ichiro Yasuda;Koichi Takeya;Hideji Itokawa
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