Koichi Sekiguchi

1.5k total citations
46 papers, 882 citations indexed

About

Koichi Sekiguchi is a scholar working on Paleontology, Molecular Biology and Genetics. According to data from OpenAlex, Koichi Sekiguchi has authored 46 papers receiving a total of 882 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Paleontology, 19 papers in Molecular Biology and 9 papers in Genetics. Recurrent topics in Koichi Sekiguchi's work include Subterranean biodiversity and taxonomy (20 papers), Protist diversity and phylogeny (9 papers) and Venomous Animal Envenomation and Studies (7 papers). Koichi Sekiguchi is often cited by papers focused on Subterranean biodiversity and taxonomy (20 papers), Protist diversity and phylogeny (9 papers) and Venomous Animal Envenomation and Studies (7 papers). Koichi Sekiguchi collaborates with scholars based in Japan, Russia and Spain. Koichi Sekiguchi's co-authors include M. S. Shearman, Yasutomi Nishizuka, Hiroaki Sugita, Yukio Hiramoto, Sumio Ishijima, Fumio Shishikura, Koichiro Nakamura, Shin Nakamura, Kenji Takahashi and Tamio Hirabayashi and has published in prestigious journals such as Journal of Biological Chemistry, Pharmacological Reviews and Evolution.

In The Last Decade

Koichi Sekiguchi

42 papers receiving 832 citations

Peers

Koichi Sekiguchi

CMN

PALEO

GENET

Françoise Mazet United Kingdom

Vittorio Gremigni Italy

David A. Hessinger United States

Patrick Chang France

David B. Slautterback United States

Chris Patton United States

Toshiaki Okada Japan

David K. Simmons United States

R W Schackmann United States

Ricardo M. Zayas United States

Françoise Mazet United Kingdom

Koichi Sekiguchi

1.1k ×2.2

158 ×0.7

CMN

200 ×0.9

PALEO

236 ×1.8

GENET

132 ×1.6

Citations per year, relative to Koichi Sekiguchi Koichi Sekiguchi (= 1×) peers Françoise Mazet

Countries citing papers authored by Koichi Sekiguchi

Since Specialization

Citations

This map shows the geographic impact of Koichi Sekiguchi's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Koichi Sekiguchi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koichi Sekiguchi more than expected).

Fields of papers citing papers by Koichi Sekiguchi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koichi Sekiguchi. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Koichi Sekiguchi. The network helps show where Koichi Sekiguchi may publish in the future.

Co-authorship network of co-authors of Koichi Sekiguchi

This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Sekiguchi. A scholar is included among the top collaborators of Koichi Sekiguchi based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Koichi Sekiguchi. Koichi Sekiguchi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Ishiyama, Kohei, Kunihisa Kozawa, Koichi Sekiguchi, et al.. (2025). Regional changes in shear modulus of the biceps femoris long head following load application to the biceps femoris short head. Journal of Biomechanics. 192. 112947–112947.

Sekiguchi, Koichi, H. Witała, K. Ermisch, et al.. (2004). 135Mev/核子における 1 H(d,p) 2 H弾性散乱について偏極移動測定と三核子力効果. Physical review. C. 70(1). 1–14001. 1 indexed citations

Azuma, Atsushi, et al.. (2001). Rebamipide Suppresses Formyl-methionyl-leucyl-phenylalanine (fMLP)-Induced Superoxide Production by Inhibiting fMLP-Receptor Binding in Human Neutrophils. Journal of Pharmacology and Experimental Therapeutics. 297(1). 388–394. 19 indexed citations

Kameyama, Asako, M. S. Shearman, Koichi Sekiguchi, & Masaki Kameyama. (1996). Cyclic AMP-Dependent Protein Kinase but Not Protein Kinase C Regulates the Cardiac Ca2+ Channel through Phosphorylation of Its 1 Subunit. The Journal of Biochemistry. 120(1). 170–176. 11 indexed citations

Shearman, M. S., Koichi Sekiguchi, & Yasutomi Nishizuka. (1989). Modulation of ion channel activity: a key function of the protein kinase C enzyme family.. Pharmacological Reviews. 41(2). 211–237. 287 indexed citations

Kikkawa, Ushio, Kouji Ogita, M. S. Shearman, et al.. (1988). The Family of Protein Kinase C: Its Molecular Heterogeneity and Differential Expression. Cold Spring Harbor Symposia on Quantitative Biology. 53(0). 97–102. 28 indexed citations

Kikkawa, Ushio, Kouji Ogita, M. S. Shearman, et al.. (1988). The heterogeneity and differential expression of protein kinase C in nervous tissues. Philosophical transactions of the Royal Society of London. Series B, Biological sciences. 320(1199). 313–324. 21 indexed citations

Kikkawa, Ushio, Kouji Ogita, Mitsuru Go, et al.. (1988). Protein kinase C in transmembrane signaling.. PubMed. 21. 67–74. 8 indexed citations

Miyazaki, Junichi, Koichi Sekiguchi, & Tamio Hirabayashi. (1986). Tissue specificity of tropomyosin from a horseshoe crab, Tachypleus tridentatus. Comparative Biochemistry and Physiology Part B Comparative Biochemistry. 85(3). 679–685. 3 indexed citations

10.

Sekiguchi, Koichi, et al.. (1984). Acid Mucopolysaccharide in Embryos of the Horseshoe Crab, Tachypleus tridentatus (Chelicerata, Arthropoda)(Developmental Biology). The Journal of Biochemistry. 1(3). 463–470. 1 indexed citations

11.

Sugita, Hiroaki, et al.. (1983). Morphological Characterization of First Instar Larvae of Asian Horseshoe Crabs and their Hybrids*. Development Growth & Differentiation. 25(3). 271–280. 1 indexed citations

12.

Shishikura, Fumio, Shin Nakamura, Kenji Takahashi, & Koichi Sekiguchi. (1983). Coagulogens from Four Living Species of Horseshoe Crabs (Limulide): Comparison of Their Biochemical and Immunochemical Properties12. The Journal of Biochemistry. 94(4). 1279–1287. 10 indexed citations

13.

Sekiguchi, Koichi, et al.. (1983). Agglutinins in the Horseshoe Crab Hemolymph: Purification of a Potent Agglutinin of Horse Erythrocytes from the Hemolymph of Tachypleus tridentatus, the Japanese Horseshoe Crab. The Journal of Biochemistry. 93(6). 1539–1546. 16 indexed citations

14.

Sugita, Hiroaki & Koichi Sekiguchi. (1981). Swelling Mechanism of the Embryo of the Japanese Horseshoe Crab, Tachypleus tridentatus. 90(3). 271–282. 1 indexed citations

15.

Sekiguchi, Koichi, et al.. (1980). MORPHOGENIC MOVEMENT AND EXPERIMENTALLY INDUCED DECREASE IN NUMBER OF EMBRYONIC SEGMENTS IN THE JAPANESE HORSESHOE CRAB,TACHYPLEUS TRIDENTATUS. Biological Bulletin. 158(3). 324–338. 14 indexed citations

16.

Sugita, Hiroaki & Koichi Sekiguchi. (1980). Amino acid composition of hemocyanin monomers from the horseshoe crab,Tachypleus tridentatus. Cellular and Molecular Life Sciences. 36(9). 1027–1028. 4 indexed citations

17.

Sekiguchi, Koichi, et al.. (1979). Induction of multiple embryos with NaHCO3 or calcium free sea water in the horseshoe crab. Development Genes and Evolution. 187(3). 245–254. 10 indexed citations

18.

Sugita, Hiroaki & Koichi Sekiguchi. (1979). Protein components in the perivitelline fluid of the embryo of the horseshoe crab,Tachypleus tridentatus. Developmental Biology. 73(2). 183–192. 11 indexed citations

19.

Sekiguchi, Koichi, et al.. (1974). EMBRYO AND ORGAN CULTURES OF THE HORSESHOE CRAB, TACHYPLEUS TRIDENTATUS*. Development Growth & Differentiation. 16(4). 295–304. 1 indexed citations

20.

Sekiguchi, Koichi. (1952). On a New Spinning Gland Found in Geometric Spiders and its Functions. 日本動物学彙報. 25(3). 394–399. 27 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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