Hirofumi Yajima

2.1k total citations
125 papers, 1.7k citations indexed

About

Hirofumi Yajima is a scholar working on Materials Chemistry, Organic Chemistry and Polymers and Plastics. According to data from OpenAlex, Hirofumi Yajima has authored 125 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Materials Chemistry, 22 papers in Organic Chemistry and 21 papers in Polymers and Plastics. Recurrent topics in Hirofumi Yajima's work include Carbon Nanotubes in Composites (15 papers), Graphene research and applications (10 papers) and Polymer Nanocomposite Synthesis and Irradiation (9 papers). Hirofumi Yajima is often cited by papers focused on Carbon Nanotubes in Composites (15 papers), Graphene research and applications (10 papers) and Polymer Nanocomposite Synthesis and Irradiation (9 papers). Hirofumi Yajima collaborates with scholars based in Japan, United States and China. Hirofumi Yajima's co-authors include Tadahiro Ishii, Takashi Handa, Katsumi Uchida, Terüo Takahashi, Fumio Fukai, Masayoshi Ito, Takashi Katayama, Atsushi Tamura, Tomoyuki Ohishi and Atsushi Takahara and has published in prestigious journals such as Journal of Biological Chemistry, SHILAP Revista de lepidopterología and Physical review. B, Condensed matter.

In The Last Decade

Hirofumi Yajima

121 papers receiving 1.7k citations

Peers

Hirofumi Yajima

Tadahiro Ishii Japan

Attila Bóta Hungary

Ronald C. Chatelier Australia

Mihaela Delcea Germany

Chuanfeng Zhu China

A. Basak Kayitmazer Türkiye

Kyoko Fujita Japan

Satoru Shimada Japan

Anabela C. Fernandes Portugal

Tadahiro Ishii Japan

Hirofumi Yajima

354 ×0.7

202 ×0.6

217 ×0.7

168 ×0.6

261 ×0.9

Citations per year, relative to Hirofumi Yajima Hirofumi Yajima (= 1×) peers Tadahiro Ishii

Countries citing papers authored by Hirofumi Yajima

Since Specialization

Citations

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

Fields of papers citing papers by Hirofumi Yajima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hirofumi Yajima

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

All Works

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20 of 20 papers shown

Tanaka, Rika, Yohei Saito, Sadahiro Kamiya, et al.. (2014). Tenascin-C-derived Peptide TNIIIA2 Highly Enhances Cell Survival and Platelet-derived Growth Factor (PDGF)-dependent Cell Proliferation through Potentiated and Sustained Activation of Integrin α5β1. Journal of Biological Chemistry. 289(25). 17699–17708. 34 indexed citations

Tamura, Atsushi, Ji‐Hun Seo, Koji Tsuchiya, et al.. (2013). Molecular logistics using cytocleavable polyrotaxanes for the reactivation of enzymes delivered in living cells. Scientific Reports. 3(1). 2252–2252. 29 indexed citations

Hasegawa, Yūko, et al.. (2011). Selective separation of samarium(III) by synergistic extraction with β-diketone and methylphenylphenanthroline carboxamide. Talanta. 85(3). 1543–1548. 38 indexed citations

Tanaka, Rika, Toshiyuki Owaki, Sadahiro Kamiya, et al.. (2009). VLA-5-mediated Adhesion to Fibronectin Accelerates Hemin-stimulated Erythroid Differentiation of K562 Cells through Induction of VLA-4 Expression. Journal of Biological Chemistry. 284(30). 19817–19825. 20 indexed citations

Mori, Takahiro, et al.. (2007). Improved temperature characteristics of single-wall carbon nanotube single electron transistors using carboxymethylcellulose dispersant. Applied Physics Letters. 91(26). 4 indexed citations

Yajima, Hirofumi, et al.. (2005). Theoretical Study of C60Rn Addition Pattern and Geometrical Evolution Graph. 6. 1–11. 1 indexed citations

Ogawa, Etsuyo, Rheo Takahashi, Hirofumi Yajima, & Katsuyoshi Nishinari. (2005). Thermally induced coil‐to‐helix transition of sodium gellan gum with different molar masses in aqueous salt solutions. Biopolymers. 79(4). 207–217. 22 indexed citations

Kamiya, Sadahiro, Tatsuya Kawaguchi, Naoko Kamiya, et al.. (2004). A fibronectin fragment induces tumor necrosis factor production of rat basophilic leukemia cells. Biochimica et Biophysica Acta (BBA) - General Subjects. 1675(1-3). 87–94. 3 indexed citations

Sashiwa, Hitoshi, et al.. (2003). Chemical modification of chitosan 16 : Synthesis of polypropyleneimine dendrimer-chitosan hybrid. 9(2). 45–51. 1 indexed citations

10.

Sashiwa, Hitoshi, Norioki Kawasaki, Atsuyoshi Nakayama, et al.. (2003). Chemical modification of chitosan. Part 15: Synthesis of novel chitosan derivatives by substitution of hydrophilic amine using N-carboxyethylchitosan ethyl ester as an intermediate. Carbohydrate Research. 338(6). 557–561. 55 indexed citations

11.

Ohnishi, Makoto, Hirofumi Yajima, Tetsuya Takeuchi, et al.. (2001). Mechanism of Urinary Tract Crystal Formation Following Biphenyl Treatment. Toxicology and Applied Pharmacology. 174(2). 122–129. 9 indexed citations

12.

Sonoyama, Masashi, et al.. (2001). Characterization of water contribution to excimer laser ablation of collagen. Journal of Photochemistry and Photobiology A Chemistry. 145(3). 195–200. 27 indexed citations

13.

Yajima, Hirofumi, et al.. (1998). Small-angle neutron scattering and dynamic light scattering studies of N- and C-terminal fragments of ovotransferrin. Biochimica et Biophysica Acta (BBA) - General Subjects. 1381(1). 68–76. 9 indexed citations

14.

Fukai, Fumio, Masahiro Ohtaki, Noriko Fujii, et al.. (1995). Release of Biological Activities from Quiescent Fibronectin by a Conformational Change and Limited Proteolysis by Matrix Metalloproteinases. Biochemistry. 34(36). 11453–11459. 64 indexed citations

15.

Sasaki, Noriyuki, et al.. (1990). Dynamic light scattering study of the conformational change of ovotransferrin induced by the binding of lanthanoid ions.. NIPPON KAGAKU KAISHI. 185–191. 1 indexed citations

16.

Nishimura, Takeshi, Hirofumi Yajima, Tadahiro Ishii, & Ryūichi Endõ. (1989). Effect of molecular weight of amylose on the iodine coloring species responsible for the optical properties of amylose-iodine complexes.. KOBUNSHI RONBUNSHU. 46(9). 537–544. 2 indexed citations

17.

Yajima, Hirofumi, et al.. (1989). Immobilization of glucoamylase onto alternative acrylonitrile‐butadiene copolymer by amidination reaction. Biotechnology and Bioengineering. 33(6). 795–798. 9 indexed citations

18.

Matsumoto, Masayuki, Hirofumi Yajima, & Takashi Handa. (1986). Thermoanalytical and Calorimetric Studies on Polymorphic Behaviors of Crystalline Modifications in Aliphatic α-Amino Acids with Normal Alkyl Chains. Bulletin of the Chemical Society of Japan. 59(12). 3803–3808. 4 indexed citations

19.

Handa, Takashi, et al.. (1980). On the blue color of triiodide ions in starch and starch fractions. III. Resonance Raman spectra of bluing species in amylose. Biopolymers. 19(10). 1723–1741. 18 indexed citations

20.

Handa, Takashi & Hirofumi Yajima. (1979). On the blue color of triiodide ions in starch and starch fractions. I. Characterization and assignment of absorption and circular dichroism spectra of triiodide ions in amylose. Biopolymers. 18(4). 873–886. 26 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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