Koichi Hirao

3.4k total citations · 2 hit papers
60 papers, 2.6k citations indexed

About

Koichi Hirao is a scholar working on Endocrinology, Diabetes and Metabolism, Molecular Biology and Physiology. According to data from OpenAlex, Koichi Hirao has authored 60 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Endocrinology, Diabetes and Metabolism, 15 papers in Molecular Biology and 12 papers in Physiology. Recurrent topics in Koichi Hirao's work include Diabetes Treatment and Management (18 papers), Diabetes Management and Research (17 papers) and Alzheimer's disease research and treatments (11 papers). Koichi Hirao is often cited by papers focused on Diabetes Treatment and Management (18 papers), Diabetes Management and Research (17 papers) and Alzheimer's disease research and treatments (11 papers). Koichi Hirao collaborates with scholars based in Japan, Denmark and Malaysia. Koichi Hirao's co-authors include Takashi Nishino, Masaru Kotera, Hiroshi Inagaki, Katsuhiko Nakamae, Hiroyasu Taguchi, Ikuo Tooyama, Daijiro Yanagisawa, Hitomi Ohara, Nobuaki Shirai and Shigehiro Morikawa and has published in prestigious journals such as Biomaterials, Diabetes Care and Macromolecules.

In The Last Decade

Koichi Hirao

57 papers receiving 2.6k citations

Hit Papers

All-Cellulose Composite 2003 2026 2010 2018 2004 2003 200 400 600
What are hit papers?

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.

  1. All-Cellulose Composite
    2004 631 citations Koichi Hirao et al. profile →
  2. Kenaf reinforced biodegradable composite
    2003 531 citations Koichi Hirao et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koichi Hirao Japan 24 991 804 416 408 363 60 2.6k
Shan Gao China 25 251 0.3× 120 0.1× 109 0.3× 91 0.2× 629 1.7× 80 2.0k
Kazunori Yamada Japan 22 270 0.3× 268 0.3× 99 0.2× 45 0.1× 181 0.5× 112 1.8k
Xiaoyun Xie China 27 381 0.4× 135 0.2× 163 0.4× 130 0.3× 838 2.3× 85 2.4k
Panoraia I. Siafaka Greece 23 747 0.8× 139 0.2× 71 0.2× 43 0.1× 231 0.6× 59 2.3k
Liang Zhao China 36 736 0.7× 70 0.1× 117 0.3× 276 0.7× 1.9k 5.2× 103 3.9k
Wencong Liu China 31 454 0.5× 85 0.1× 147 0.4× 100 0.2× 754 2.1× 143 2.7k
Zijing Zhang China 24 270 0.3× 134 0.2× 99 0.2× 153 0.4× 600 1.7× 123 2.0k
Masaharu Asano Japan 26 776 0.8× 552 0.7× 82 0.2× 47 0.1× 401 1.1× 176 2.9k
Ling‐Ying Shi China 27 196 0.2× 379 0.5× 58 0.1× 66 0.2× 408 1.1× 71 2.2k
Yantao Zhao China 30 368 0.4× 52 0.1× 219 0.5× 219 0.5× 596 1.6× 134 2.8k

Countries citing papers authored by Koichi Hirao

Since Specialization
Citations

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

Fields of papers citing papers by Koichi Hirao

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichi Hirao

This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Hirao. A scholar is included among the top collaborators of Koichi Hirao 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 Hirao. Koichi Hirao 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.
Arai, Keiko, Tetsuo Nishikawa, Yoko Matsuzawa, et al.. (2021). Differences in Dental Care Referral for Diabetic Patients Between General Practitioners and Diabetes Specialists in Japan, Analyzed from NSAID-Study 3. Diabetes Therapy. 13(2). 379–385. 1 indexed citations
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Yanagisawa, Daijiro, Hiroyasu Taguchi, Shigehiro Morikawa, et al.. (2014). Preferred Features of a Fluorine-19 MRI Probe for Amyloid Detection in the Brain. Journal of Alzheimer s Disease. 39(3). 617–631. 26 indexed citations
5.
Kanatsuka, Azuma, Yasunori Sato, Koichi Kawai, et al.. (2014). Evaluation of insulin regimens as an effective option for glycemic control in patients with type 2 diabetes: A propensity score‐matched cohort study across Japan (JDDM31). Journal of Diabetes Investigation. 5(5). 539–547. 6 indexed citations
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Arai, Keiko, Masahiko Takai, Koichi Hirao, et al.. (2012). Present status of insulin therapy for type 2 diabetes treated by general practitioners and diabetes specialists in Japan: Third report of a cross‐sectional survey of 15,652 patients. Journal of Diabetes Investigation. 3(4). 396–401. 11 indexed citations
8.
Yanagisawa, Daijiro, Hiroyasu Taguchi, Akitsugu Yamamoto, et al.. (2011). Curcuminoid Binds to Amyloid-β1-42 Oligomer and Fibril. Journal of Alzheimer s Disease. 24(s2). 33–42. 73 indexed citations
9.
Hirao, Koichi, et al.. (2009). Hydrolysis of poly(l-lactic acid) using microwave irradiation. Polymer Degradation and Stability. 95(1). 86–88. 21 indexed citations
10.
Tsuji, Yasuhiro, et al.. (2009). Development of System Utilizing Electronic Medical Records for Management of Medicines Brought to Hospital by Inpatients and Its Evaluation by Doctors and Nurses. Iryo Yakugaku (Japanese Journal of Pharmaceutical Health Care and Sciences). 35(8). 525–533. 5 indexed citations
11.
Nakamura, Haruo, Kyoichi Mizuno, Yasuo Ohashi, et al.. (2009). Pravastatin and cardiovascular risk in moderate chronic kidney disease. Atherosclerosis. 206(2). 512–517. 67 indexed citations
12.
Arai, Keiko, Hiroki Yokoyama, FUMINOBU OKUGUCHI, et al.. (2008). Association between Body Mass Index and Core Components of Metabolic Syndrome in 1486 Patients with Type 1 Diabetes Mellitus in Japan (JDDM 13). Endocrine Journal. 55(6). 1025–1032. 28 indexed citations
13.
Hirao, Koichi, Keiko Arai, Mikio Yamauchi, Hirofumi Takagi, & Masashi Kobayashi. (2007). Six-month multicentric, open-label, randomized trial of twice-daily injections of biphasic insulin aspart 30 versus multiple daily injections of insulin aspart in Japanese type 2 diabetic patients (JDDM 11). Diabetes Research and Clinical Practice. 79(1). 171–176. 36 indexed citations
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Kobayashi, Masashi, Katsuya Yamazaki, Koichi Hirao, et al.. (2006). The status of diabetes control and antidiabetic drug therapy in Japan—A cross-sectional survey of 17,000 patients with diabetes mellitus (JDDM 1). Diabetes Research and Clinical Practice. 73(2). 198–204. 126 indexed citations
16.
Maeda, Hajime, Rain Yamamoto, Koichi Hirao, & Osamu Tochikubo. (2004). Effects of agar ( kanten ) diet on obese patients with impaired glucose tolerance and type 2 diabetes. Diabetes Obesity and Metabolism. 7(1). 40–46. 49 indexed citations
17.
Satô, Noboru, Koichi Hirao, Eiji Hayashi, & Gen Katagiri. (2002). Characterization of Electrode Materials during Degradation Process of Li-ion Batteries.. NIPPON KAGAKU KAISHI. 189–194. 4 indexed citations
18.
Matsumoto, Kazunari, Yasunori Sera, Yasuyo Abe, et al.. (2002). High serum concentrations of soluble E-selectin correlate with obesity but not fat distribution in patients with type 2 diabetes mellitus. Metabolism. 51(7). 932–934. 42 indexed citations
19.
Nakamura, Hideki, et al.. (2001). Vasculo–Behçet's syndrome with widespread arterial involvement. Modern Rheumatology. 11(4). 332–335. 5 indexed citations
20.
Shimamoto, Y, et al.. (1986). A case of Swyer-James syndrome, with reference to pathophysiologic and etiologic aspect.. PubMed. 35(2). 163–6. 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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