Kouichi Ikai

1.2k total citations
39 papers, 966 citations indexed

About

Kouichi Ikai is a scholar working on Immunology, Pharmacology and Physiology. According to data from OpenAlex, Kouichi Ikai has authored 39 papers receiving a total of 966 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Immunology, 11 papers in Pharmacology and 10 papers in Physiology. Recurrent topics in Kouichi Ikai's work include Inflammatory mediators and NSAID effects (10 papers), Asthma and respiratory diseases (9 papers) and Autoimmune Bullous Skin Diseases (6 papers). Kouichi Ikai is often cited by papers focused on Inflammatory mediators and NSAID effects (10 papers), Asthma and respiratory diseases (9 papers) and Autoimmune Bullous Skin Diseases (6 papers). Kouichi Ikai collaborates with scholars based in Japan and South Korea. Kouichi Ikai's co-authors include Sadao Imamura, Mayumi Ujihara, Yoshihiro Urade, Osamu Hayaishi, Hideya Hayashi, Naomi Eguchi, Kiichiro Danno, Shuh Narumiya, Shunji Kozaki and Nobuyuki Marui and has published in prestigious journals such as Biochemical and Biophysical Research Communications, Archives of Biochemistry and Biophysics and Journal of Investigative Dermatology.

In The Last Decade

Kouichi Ikai

38 papers receiving 937 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kouichi Ikai Japan 16 372 191 171 170 141 39 966
Susumu Tsurufuji Japan 20 286 0.8× 174 0.9× 155 0.9× 337 2.0× 81 0.6× 46 989
Tetsuya Hirabayashi Japan 18 1.0k 2.7× 192 1.0× 271 1.6× 177 1.0× 298 2.1× 40 1.7k
John M. Yanni United States 23 246 0.7× 497 2.6× 199 1.2× 200 1.2× 37 0.3× 52 1.6k
Seiko Masuda Japan 22 726 2.0× 204 1.1× 194 1.1× 316 1.9× 166 1.2× 25 1.5k
Jeong A. Han South Korea 18 482 1.3× 150 0.8× 100 0.6× 129 0.8× 81 0.6× 33 1.1k
David K. Bol United States 17 681 1.8× 159 0.8× 60 0.4× 112 0.7× 120 0.9× 25 1.3k
E G Erdös United States 17 868 2.3× 174 0.9× 270 1.6× 156 0.9× 121 0.9× 23 1.8k
Mingliang Chen China 19 381 1.0× 203 1.1× 117 0.7× 50 0.3× 58 0.4× 56 983
Roland Greimers Belgium 18 597 1.6× 417 2.2× 62 0.4× 91 0.5× 62 0.4× 67 1.4k
Tetsuro Yoshimaru Japan 23 702 1.9× 659 3.5× 292 1.7× 63 0.4× 95 0.7× 50 1.5k

Countries citing papers authored by Kouichi Ikai

Since Specialization
Citations

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

Fields of papers citing papers by Kouichi Ikai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kouichi Ikai. 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 Kouichi Ikai. The network helps show where Kouichi Ikai may publish in the future.

Co-authorship network of co-authors of Kouichi Ikai

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

All Works

20 of 20 papers shown
1.
Ikai, Kouichi. (1999). Psoriasis and the arachidonic acid cascade. Journal of Dermatological Science. 21(3). 135–146. 65 indexed citations
2.
Ikai, Kouichi, et al.. (1997). Serum level of major basic protein indicates disease activity in atopic dermatitis. Journal of the European Academy of Dermatology and Venereology. 9(1). 54–56.
3.
Ikai, Kouichi, et al.. (1996). Leukotriene A4 hydrolase in peripheral leukocytes of patients with atopic dermatitis. Archives of Dermatological Research. 288(4). 168–172. 17 indexed citations
4.
Kore-eda, S., Toshihiro Tanaka, Kimio Fujii, et al.. (1995). A Case of Autoimmune Bullous Dermatosis with Features of Pemphigus Vulgaris and Bullous Pemphigoid. American Journal of Dermatopathology. 17(5). 511–516. 5 indexed citations
5.
Ikai, Kouichi, et al.. (1994). Eosinophil cationic protein in atopic dermatitis: changes of serum levels by the anti‐allergic agent ketotifen *. Journal of the European Academy of Dermatology and Venereology. 3(1). 59–62. 1 indexed citations
6.
Ikai, Kouichi, et al.. (1994). Leukotriene A.4 Hydrolase in Human Skin. Journal of Investigative Dermatology. 102(2). 253–257. 15 indexed citations
7.
Furukawa, Fukumi, Kouichi Ikai, Norihisa Matsuyoshi, Kyoko Shimizu, & Sadao Imamura. (1993). Relationship Between Heat Shock Protein Induction and the Binding of Antibodies to the Extractable Nuclear Antigens on Cultured Human Keratinocytes. Journal of Investigative Dermatology. 101(2). 191–195. 29 indexed citations
8.
Ikai, Kouichi, Kyoko Shimizu, Fukumi Furukawa, & Masanori Fukushima. (1992). Induction of 72-kD Heat Shock Protein and Cytoskeleton Damage by Cytotoxic Prostaglandin Δ12-PGJ2 in Transformed Human Epidermal Cells in Culture. Journal of Investigative Dermatology. 98(6). 890–894. 17 indexed citations
9.
Ikai, Kouichi, et al.. (1991). Inhibitory Effects of Prostanoids on the Proliferation of Transformed Human Epidermal Cells in Culture. Skin Pharmacology and Physiology. 4(1). 9–13. 8 indexed citations
10.
Ikai, Kouichi, Mayumi Ujihara, Kimio Fujii, & Yoshihiro Urade. (1989). Inhibitory effect of tranilast on prostaglandin D synthetase. Biochemical Pharmacology. 38(16). 2673–2676. 17 indexed citations
11.
Ikai, Kouichi, et al.. (1989). Effect of ultraviolet irradiation on the activity of rat skin prostaglandin D synthetase. Journal of Investigative Dermatology. 93(3). 345–348. 7 indexed citations
12.
Ikai, Kouichi & Sadao Imamura. (1988). Prostaglandin D2 in the Skin. International Journal of Dermatology. 27(3). 141–149. 21 indexed citations
13.
Danno, Kiichiro, et al.. (1988). Effects of Substance P and Substance K on the Growth of Cultured Keratinocytes. Journal of Investigative Dermatology. 90(3). 399–401. 116 indexed citations
14.
Ikai, Kouichi, et al.. (1988). In vitro and In vivo Regulation of Transglutaminase Activity of Mouse Epidermal Cells by Various Vitamin A Compounds. The Journal of Dermatology. 15(5). 386–392. 1 indexed citations
15.
Tanaka, Toshihiro, et al.. (1988). Conserved Gene Organization of 67K Keratin in Patients with Hereditary Palmoplantar Keratoderma. The Journal of Dermatology. 15(4). 283–286. 1 indexed citations
16.
Ikai, Kouichi, et al.. (1988). Phaeohyphomycosis caused by Phialophora richardsiae. Journal of the American Academy of Dermatology. 19(3). 478–481. 16 indexed citations
17.
Ujihara, Mayumi, Yuji Horiguchi, Kouichi Ikai, & Y. Urade. (1988). Characterization and Distribution of Prostaglandin D Synthetase in Rat Skin. Journal of Investigative Dermatology. 90(4). 448–451. 47 indexed citations
18.
Horiguchi, Yuji, Kouichi Ikai, Kiichiro Danno, Michiko Horiguchi, & Sadao Imamura. (1987). Amyloidogenesis in a Case of Cutaneous Amyloidosis: An Electron Microscopic Study Using the Refixation‐reembedding Method. The Journal of Dermatology. 14(6). 542–550. 2 indexed citations
19.
Ikai, Kouichi & Kunihiro Ueda. (1980). Immunochemical properties of unmodified and automodified poly(ADP-ribose) synthetases. Biochemical and Biophysical Research Communications. 97(1). 279–286. 7 indexed citations
20.
Ikai, Kouichi, et al.. (1976). Generalized Pustular Psoriasis. Skin research. 18(2). 201–206. 1 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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