Koh-ichi Ishikawa

624 total citations
18 papers, 474 citations indexed

About

Koh-ichi Ishikawa is a scholar working on Infectious Diseases, Virology and Epidemiology. According to data from OpenAlex, Koh-ichi Ishikawa has authored 18 papers receiving a total of 474 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Infectious Diseases, 8 papers in Virology and 7 papers in Epidemiology. Recurrent topics in Koh-ichi Ishikawa's work include HIV Research and Treatment (8 papers), Animal Disease Management and Epidemiology (6 papers) and T-cell and Retrovirus Studies (5 papers). Koh-ichi Ishikawa is often cited by papers focused on HIV Research and Treatment (8 papers), Animal Disease Management and Epidemiology (6 papers) and T-cell and Retrovirus Studies (5 papers). Koh-ichi Ishikawa collaborates with scholars based in Japan, Ghana and Croatia. Koh-ichi Ishikawa's co-authors include Masanori Hayami, Hajime Tsujimoto, Kazuaki Kuwabara, Shinya Matsuda, Shigeo Honjo, Masashi Fukasawa, Kenji Fujimori, Kiyohide Fushimi, Kohtaro Yamamoto and Takayoshi Shotake and has published in prestigious journals such as International Journal of Cancer, Virology and AIDS.

In The Last Decade

Koh-ichi Ishikawa

17 papers receiving 462 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Koh-ichi Ishikawa Japan 9 213 172 146 141 124 18 474
Marcelo Grossi Araújo Brazil 11 365 1.7× 235 1.4× 221 1.5× 8 0.1× 171 1.4× 35 701
Arnaldo Etzel Brazil 10 63 0.3× 47 0.3× 36 0.2× 134 1.0× 91 0.7× 16 413
K. Devendra Singapore 16 23 0.1× 189 1.1× 116 0.8× 52 0.4× 39 0.3× 47 595
Maarten Schim van der Loeff Netherlands 7 114 0.5× 47 0.3× 33 0.2× 49 0.3× 412 3.3× 14 768
A. Massougbodji Benin 11 93 0.4× 45 0.3× 37 0.3× 16 0.1× 43 0.3× 39 380
Suellen Nicholson Australia 14 62 0.3× 19 0.1× 13 0.1× 34 0.2× 185 1.5× 41 453
A. Ellrodt France 8 63 0.3× 12 0.1× 9 0.1× 109 0.8× 34 0.3× 14 362
Cuiling Xu United States 19 201 0.9× 175 1.0× 4 0.0× 326 2.3× 560 4.5× 52 995
Rocío Montejano Spain 14 22 0.1× 22 0.1× 17 0.1× 143 1.0× 108 0.9× 44 423
C. Saura France 11 53 0.2× 27 0.2× 20 0.1× 23 0.2× 181 1.5× 18 342

Countries citing papers authored by Koh-ichi Ishikawa

Since Specialization
Citations

This map shows the geographic impact of Koh-ichi Ishikawa'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 Koh-ichi Ishikawa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koh-ichi Ishikawa more than expected).

Fields of papers citing papers by Koh-ichi Ishikawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koh-ichi Ishikawa. 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 Koh-ichi Ishikawa. The network helps show where Koh-ichi Ishikawa may publish in the future.

Co-authorship network of co-authors of Koh-ichi Ishikawa

This figure shows the co-authorship network connecting the top 25 collaborators of Koh-ichi Ishikawa. A scholar is included among the top collaborators of Koh-ichi Ishikawa 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 Koh-ichi Ishikawa. Koh-ichi Ishikawa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

18 of 18 papers shown
1.
Matsuda, Shinya, Kenji Fujimori, Kazuaki Kuwabara, Koh-ichi Ishikawa, & Kiyohide Fushimi. (2011). Diagnosis Procedure Combination as an Infrastructure for the Clinical Study. 5(4). 81–87. 67 indexed citations
2.
Fushimi, Kiyohide, Hideki Hashimoto, Yuichi Imanaka, et al.. (2007). Functional mapping of hospitals by diagnosis-dominant case-mix analysis. BMC Health Services Research. 7(1). 50–50. 51 indexed citations
3.
Ishikawa, Koh-ichi, et al.. (1995). Serological, Virological, and Polymerase Chain Reaction Studies of HIV Type 1 and HIV Type 2 Infections in Ghanaian Patients with AIDS and AIDS-Related Complex. AIDS Research and Human Retroviruses. 11(2). 319–321. 5 indexed citations
4.
Maeda, Yoshiharu, et al.. (1993). Detection and Identification of Mycobacterial DNA with Sputa and AIDS Samples by Nested-Polymerase Chain Reaction (Nested-PCR). Kansenshogaku zasshi. 67(5). 421–428. 4 indexed citations
5.
Suzuki, Noriko, et al.. (1993). Antibody response to recombinant HCV antigens and detection of HCV RNA in serum samples of blood donors positive for anti-HCV by 2nd generation HCV antibody screening test.. Journal of the Japan Society of Blood Transfusion. 39(3). 563–568. 1 indexed citations
6.
7.
Ito, Naofumi, et al.. (1992). Detection of HCV antibody and gene using ELISA and RT-PCR among blood donors.. Journal of the Japan Society of Blood Transfusion. 38(1). 58–63.
8.
9.
Ishikawa, Koh-ichi, et al.. (1992). Detection of Mycobacteria by DNA Amplification. Kansenshogaku zasshi. 66(11). 1556–1565. 2 indexed citations
10.
Miura, Tomoyuki, Jun-ichi Sakuragi, Meiko Kawamura, et al.. (1990). Establishment of a phylogenetic survey system for AIDS-related lentiviruses and demonstration of a new HIV-2 subgroup. AIDS. 4(12). 1257–1262. 51 indexed citations
11.
Kawamura, Meiko, et al.. (1989). Immunological reactivities of Ghanaian sera with HIV-1, HIV-2, and simian immunodeficiency virus SIVagm. AIDS. 3(9). 609–612. 6 indexed citations
12.
Hasegawa, Akira, Hajime Tsujimoto, Noboru Maki, et al.. (1989). Genomic Divergence of HIV-2 from Ghana. AIDS Research and Human Retroviruses. 5(6). 593–604. 47 indexed citations
13.
Ishikawa, Koh-ichi, Hajime Tsujimoto, Masuyo Nakai, et al.. (1988). Isolation and characterization of HIV-2 from an AIDS patient in Ghana. AIDS. 2(5). 383–388. 27 indexed citations
14.
Fukasawa, Masashi, Hajime Tsujimoto, Koh-ichi Ishikawa, et al.. (1987). Human T-Cell leukemia virus type I isolates from Gabon and Ghana: Comparative analysis of proviral genomes. Virology. 161(2). 315–320. 19 indexed citations
15.
Yoshida, Yukiko, Tamie Ando, Kiyoshi Yamazaki, et al.. (1987). A SEROLOGICAL SURVEY FOR HUMAN IMMUNODEFICHIENCY VIRUS TYPES 1 AND 2 OF INDIVIDUALS WHO VISITED HEALTH CENTERS IN TOKYO. Japanese Journal of Medical Science and Biology. 40(4). 159–164. 1 indexed citations
16.
Tsujimoto, Hajime, Yoshihiro Noda, Koh-ichi Ishikawa, et al.. (1987). Development of adult T-cell leukemia-like disease in African green monkey associated with clonal integration of simian T-cell leukemia virus type I.. PubMed. 47(1). 269–74. 48 indexed citations
17.
Nakamura, Hideo, Yuetsu Tanaka, Koh-ichi Ishikawa, et al.. (1986). Experimental inoculation of monkeys with autologous lymphoid cell lines immortalized by and producing human T‐cell leukemia virus type‐I. International Journal of Cancer. 38(6). 867–875. 32 indexed citations
18.
Hayami, Masanori, Atsumi Komuro, Ken NOZAWA, et al.. (1984). Prevalence of antibody to adult T-cell leukemia virus-associated antigens (ATLA) in Japanese monkeys and other non-human primates. International Journal of Cancer. 33(2). 179–183. 104 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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