Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
This map shows the geographic impact of Hiroshi Okada'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 Hiroshi Okada with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hiroshi Okada more than expected).
This network shows the impact of papers produced by Hiroshi Okada. 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 Hiroshi Okada. The network helps show where Hiroshi Okada may publish in the future.
Co-authorship network of co-authors of Hiroshi Okada
This figure shows the co-authorship network connecting the top 25 collaborators of Hiroshi Okada.
A scholar is included among the top collaborators of Hiroshi Okada 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 Hiroshi Okada. Hiroshi Okada is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Mori, Hitoshi, et al.. (2001). Three-dimensional Seismic Velocity Structure around Usu Volcano, Japan. AGU Fall Meeting Abstracts. 2001.4 indexed citations
15.
Okada, Hiroshi. (1994). Features and Economic and Social Effects of The Shinkansen.21 indexed citations
16.
Kameyoshi, Yoshikazu, M. Matsushita, & Hiroshi Okada. (1989). Murine membrane inhibitor of complement which accelerates decay of human C3 convertase.. PubMed Central. 68(4). 439–44.37 indexed citations
17.
YOSHII, Toshikatsu, Shuzo Asano, Susumu Kubota, et al.. (1985). Crustal structure in Izu Peninsula, central Japan, as derived from explosion seismic observations 2. Ito-Matsuzaki profile.:2. ITO-MATSUZAKI PROFILE. Earth Planets and Space. 33(5). 435–451.6 indexed citations
18.
Okada, Hiroshi, et al.. (1976). Histochemical studies on fatty acid in lymphocyte-mediated immune reaction.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 30(5). 763–7.6 indexed citations
19.
Hirose, Yoshio, et al.. (1967). Studies on Oxygen Transfer in Submerged Fermentations:Part VII. Glutamic Acid Fermentation under Controlled Pressure of Dissolved Oxygen by Means of Electrolysis of Water. Agricultural and Biological Chemistry. 31(10). 1217–1223.1 indexed citations
20.
Okada, Hiroshi. (1964). Analyses of Seismic Waves Generated by Small Explosions : Experiment at Ima-machi, Niigata Prefecture. Hokkaido University Collection of Scholarly and Academic Papers (Hokkaido University). 2(2). 197–237.3 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.