Kohji Hara

3.1k total citations
107 papers, 2.7k citations indexed

About

Kohji Hara is a scholar working on Periodontics, Immunology and Pharmacy. According to data from OpenAlex, Kohji Hara has authored 107 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 56 papers in Periodontics, 21 papers in Immunology and 18 papers in Pharmacy. Recurrent topics in Kohji Hara's work include Oral microbiology and periodontitis research (56 papers), Oral and gingival health research (18 papers) and Periodontal Regeneration and Treatments (17 papers). Kohji Hara is often cited by papers focused on Oral microbiology and periodontitis research (56 papers), Oral and gingival health research (18 papers) and Periodontal Regeneration and Treatments (17 papers). Kohji Hara collaborates with scholars based in Japan, Australia and Netherlands. Kohji Hara's co-authors include Kazuhisa Yamazaki, Hiromasa Yoshie, Takako Eguchi Nakajima, Y Matsuki, Takashi Nomura, Tadashi Yamamoto, G. J. Seymour, E. Gemmell, Tetsuo Kobayashi and Yutaka Matsuki and has published in prestigious journals such as Journal of Cell Science, Infection and Immunity and Annals of Oncology.

In The Last Decade

Kohji Hara

102 papers receiving 2.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kohji Hara Japan 32 1.5k 752 497 434 379 107 2.7k
Timothy M. Blieden United States 19 597 0.4× 434 0.6× 430 0.9× 306 0.7× 239 0.6× 28 2.2k
Erhan Fıratlı Türkiye 28 982 0.6× 245 0.3× 585 1.2× 655 1.5× 621 1.6× 82 2.5k
Taneaki Nakagawa Japan 25 895 0.6× 262 0.3× 788 1.6× 314 0.7× 114 0.3× 155 3.1k
Timo Sorsa Finland 28 641 0.4× 296 0.4× 411 0.8× 177 0.4× 179 0.5× 69 2.1k
T. Noguchi Japan 26 914 0.6× 280 0.4× 453 0.9× 338 0.8× 88 0.2× 40 1.8k
Mehmet A. Eskan United States 13 1.2k 0.8× 760 1.0× 525 1.1× 155 0.4× 96 0.3× 19 2.1k
A. T. Cruchley United Kingdom 25 493 0.3× 274 0.4× 567 1.1× 423 1.0× 92 0.2× 38 2.1k
Johnah C. Galicia United States 21 753 0.5× 439 0.6× 350 0.7× 364 0.8× 69 0.2× 34 1.7k
Karl Schenck Norway 27 802 0.5× 512 0.7× 371 0.7× 150 0.3× 193 0.5× 77 1.8k
Toshiharu Abe United States 16 1.4k 0.9× 1.1k 1.4× 573 1.2× 88 0.2× 98 0.3× 19 2.4k

Countries citing papers authored by Kohji Hara

Since Specialization
Citations

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

Fields of papers citing papers by Kohji Hara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kohji Hara

This figure shows the co-authorship network connecting the top 25 collaborators of Kohji Hara. A scholar is included among the top collaborators of Kohji Hara 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 Kohji Hara. Kohji Hara 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.
2.
Kinoshita, Yoshiaki, Kohji Hara, Shota Takenaka, et al.. (2025). Diagnostic and prognostic implications of a deep suprasternal notch in idiopathic pleuroparenchymal fibroelastosis. Respiratory Medicine. 238. 107986–107986.
3.
Sugita, Noriko, K. Yamamoto, Tetsuo Kobayashi, et al.. (1999). Relevance of FcγRIIIa-158V-F polymorphism to recurrence of adult periodontitis in Japanese patients. Clinical & Experimental Immunology. 117(2). 350–354. 49 indexed citations
4.
Okuda, Kazuhiro, Masashi Murata, Yoshinori Saito, et al.. (1998). TGF‐β1 influences early gingival wound healing in rats: an immunohistochemical evaluation of stromal remodelling by extracellular matrix molecules and PCNA. Journal of Oral Pathology and Medicine. 27(10). 463–469. 29 indexed citations
5.
Sugita, Noriko, Kouji Yamamoto, Tetsuo Kobayashi, et al.. (1998). Relevance of FcγRIIIa-158V/F polymorphism to recurrence of adult periodontitis in Japanese patients. Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology). 40. 61. 5 indexed citations
6.
Yamamoto, Tadashi, et al.. (1996). IL‐1β mRNA as the predominant inflammatory cytokine transcript‐correlation with inflammatory cell infiltration into human gingiva. Journal of Oral Pathology and Medicine. 25(5). 225–231. 41 indexed citations
7.
Saito, Keiko, Yutaka Kusumoto, Hiroyuki Hirano, et al.. (1996). . Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology). 38(Supplement2). 115–123. 2 indexed citations
8.
Maeda, Tetsuya, et al.. (1996). Responses of periodontal nerve terminals to experimentally induced occlusal trauma in rat molars: an immunohistochenmical study using PGP 9.5 antibody. Journal of Periodontal Research. 31(4). 235–248. 39 indexed citations
9.
Hara, Kohji, et al.. (1995). Changes in gnathosonic and tooth contact characteristics induced by experimental occlusal interferences created using a full‐cast double crown. Journal of Oral Rehabilitation. 22(3). 203–211. 11 indexed citations
10.
11.
Suzuki, Takenobu, et al.. (1995). Presence of activated eosinophils, high IgE and sCD23 titers in gingival crevicular fluid of patients with adult periodontitis. Journal of Periodontal Research. 30(3). 159–166. 10 indexed citations
12.
Nomura, Takashi, et al.. (1995). Effects of Propyl Gallate on Changes in the Quantity of Type I- and Type III-collagen Synthesis after Experimental and Periodontal Flap Operations in Rats.. Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology). 37(1). 84–96.
13.
Ishikawa, Isao, Hiroshi Okada, Kyuichi Kamoi, et al.. (1992). Clinical Evaluation of Lysozyme Chloride on Marginal Periodontitis Using Double-Blind Comparative Study.. Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology). 34(4). 883–900. 1 indexed citations
14.
Yoshie, Hiromasa, et al.. (1992). The effects of ovomacroglobulin on gingival wound healing in rats.. PubMed. 14(2). 13–22. 3 indexed citations
15.
Sugita, Hisashi, et al.. (1987). Reconstruction for vertical bone defects by beta-tricalcium phosphate application. A three-year period observation.. PubMed. 13(2). 196–203. 1 indexed citations
16.
Hara, Kohji, et al.. (1985). The development of a new occlusal sound checker.. Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology). 27(2). 482–491. 3 indexed citations
17.
Kamiya, Hiroyuki, et al.. (1984). The effects of Initial Preparation on the Composition of the Subgingival Microbial Flora in Adult Periodontitis. Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology). 26(2). 329–338. 1 indexed citations
18.
Taguchi, F, et al.. (1978). BK papovavirus in urine of a patient with systemic lupus erythematosus.. Acta Virologica. 22(6). 513–513. 1 indexed citations
19.
Hara, Kohji, et al.. (1977). Prevalence, Location and Extent of Alveolar Bony Fenestration and Dehiscence in Dry Monkey Skulls. Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology). 19(4). 319–332. 1 indexed citations
20.
Hara, Kohji, et al.. (1976). Gingival architectural forms in periodontal diseases.. PubMed. 23(1). 53–61. 2 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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