Keizo Okamura

1.3k total citations
39 papers, 914 citations indexed

About

Keizo Okamura is a scholar working on Biomaterials, Plant Science and Polymers and Plastics. According to data from OpenAlex, Keizo Okamura has authored 39 papers receiving a total of 914 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Biomaterials, 10 papers in Plant Science and 8 papers in Polymers and Plastics. Recurrent topics in Keizo Okamura's work include Advanced Cellulose Research Studies (20 papers), Lignin and Wood Chemistry (7 papers) and biodegradable polymer synthesis and properties (7 papers). Keizo Okamura is often cited by papers focused on Advanced Cellulose Research Studies (20 papers), Lignin and Wood Chemistry (7 papers) and biodegradable polymer synthesis and properties (7 papers). Keizo Okamura collaborates with scholars based in Japan, India and United States. Keizo Okamura's co-authors include Takashi Taniguchi, R. H. Marchessault, Fumio Tanaka, Junichi Azuma, D. G. Lundgren, David J. Ellar, Kozo Ogawa, J.‐F. Revol, Hiromichi Morikawa and Tadahisa Iwata and has published in prestigious journals such as Journal of Molecular Biology, Macromolecules and Carbohydrate Polymers.

In The Last Decade

Keizo Okamura

38 papers receiving 846 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Keizo Okamura Japan 16 698 248 165 158 136 39 914
Young Teck Kim United States 9 357 0.5× 139 0.6× 49 0.3× 84 0.5× 125 0.9× 11 542
Taizo Kabe Japan 13 411 0.6× 96 0.4× 49 0.3× 134 0.8× 74 0.5× 50 631
Yi Tong China 16 301 0.4× 164 0.7× 47 0.3× 63 0.4× 228 1.7× 39 707
Natanya M. L. Hansen Denmark 7 448 0.6× 299 1.2× 78 0.5× 125 0.8× 46 0.3× 8 815
Wenxiu Sun China 17 314 0.4× 149 0.6× 46 0.3× 108 0.7× 81 0.6× 63 818
Geoffrey A. R. Nobes Canada 11 497 0.7× 84 0.3× 15 0.1× 169 1.1× 110 0.8× 17 554
Th. Heinze Germany 14 322 0.5× 189 0.8× 90 0.5× 137 0.9× 67 0.5× 24 603
H. J. Purz Germany 9 824 1.2× 426 1.7× 116 0.7× 216 1.4× 30 0.2× 29 1.0k
Mari Granström Finland 10 671 1.0× 872 3.5× 134 0.8× 85 0.5× 104 0.8× 11 1.2k
Frédéric Prochazka France 17 373 0.5× 90 0.4× 27 0.2× 299 1.9× 28 0.2× 35 715

Countries citing papers authored by Keizo Okamura

Since Specialization
Citations

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

Fields of papers citing papers by Keizo Okamura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keizo Okamura

This figure shows the co-authorship network connecting the top 25 collaborators of Keizo Okamura. A scholar is included among the top collaborators of Keizo Okamura 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 Keizo Okamura. Keizo Okamura 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.
Iwata, Tadahisa, et al.. (1997). DSC study on regioselectively substituted cellulose heteroesters. Journal of Applied Polymer Science. 65(8). 1511–1515. 1 indexed citations
2.
Kido, Shoko, et al.. (1994). Change of Water-Soluble Arabinogalactan-Proteins of Cabbage Accompanying Its Growth. Bioscience Biotechnology and Biochemistry. 58(2). 225–229. 2 indexed citations
3.
Yui, Toshifumi, et al.. (1994). Crystalline Features of Streptococcal (l→3)-α-D-Glucans of Human Saliva. Bioscience Biotechnology and Biochemistry. 58(7). 1326–1327. 12 indexed citations
4.
Ogawa, Kozo, Toshifumi Yui, Keizo Okamura, & Akira Misaki. (1993). Conformation of Poly[(1→3)-(α-D-Maltotriose], a Major Part of the Elsinan Molecule, Studied by X-Ray Diffraction Coupled with Conformational Analysis. Bioscience Biotechnology and Biochemistry. 57(8). 1338–1340.
5.
Azuma, Junichi, et al.. (1993). Studies on Digestive System of Termites III. : Digestibility of Xylan by Termite Reticulitermes speratus (Kolbe). 79(79). 41–51. 5 indexed citations
6.
Azuma, Junichi, et al.. (1991). Distribution of Esterified Phenolic Acids in Cell Walls of Immature Bamboo. Kyoto University Research Information Repository (Kyoto University). 63. 272–282. 2 indexed citations
7.
Iwata, Tadahisa, Junichi Azuma, Keizo Okamura, & Fumio Tanaka. (1991). Conformational analysis of regio-selectively substituted cellulose esters.. Sen i Gakkaishi. 47(8). 379–383. 5 indexed citations
8.
Azuma, Junichi, et al.. (1990). Induction of Callus from Mistletoe and Interaction with its Host Cells. Kyoto University Research Information Repository (Kyoto University). 62(62). 261–269. 6 indexed citations
9.
Ogawa, Kozo, Takahisa Hayashi, & Keizo Okamura. (1990). Conformational analysis of xyloglucans. International Journal of Biological Macromolecules. 12(3). 218–222. 19 indexed citations
10.
Okamura, Keizo, et al.. (1989). NMR Assignments of Propionyl Groups in Cellulose Tripropionate (Commemoration Issue Dedicated to Professor Hiroshi Ibagaki, Professor Michio Kurata, Professor Ryozo Kitamura, On the Occasion of Their Retirments). Kyoto University Research Information Repository (Kyoto University). 66(3). 128–135. 1 indexed citations
11.
Ogawa, Kozo, Fumio Tanaka, Jun‐ichi Tamura, Kiyoshi Kadowaki, & Keizo Okamura. (1987). Structure of poly[(1 .fwdarw. 4)-.alpha.-D-galactosamine anhydride] studied by x-ray diffraction coupled with conformational analysis. Macromolecules. 20(5). 1172–1174. 24 indexed citations
12.
Okamura, Keizo, Misato Norimoto, & N. Shiraishi. (1983). Change of X-ray Diffraction Peaks in Aliphatic Cellulose Ester Homologues. 69. 89–90. 3 indexed citations
13.
Ogawa, Kozo, Keizo Okamura, & A. Sarko. (1981). Molecular and crystal structure of the regenerated form of (1→3)-α-d-glucan. International Journal of Biological Macromolecules. 3(1). 31–36. 25 indexed citations
14.
Tanaka, Fumio, et al.. (1981). Characterization of cellulose in compression and opposite woods of a Pinus densiflora tree grown under the influence of strong wind. Wood Science and Technology. 15(4). 265–273. 27 indexed citations
15.
Tanaka, Fumio, et al.. (1980). Orientation Distribution of Cellulose Crystallites in Woody Plants. Part I. : Pole-Figures and Orientation Functions of Cellulose Crystallites in Opposite Wood of Pinus densiflora.. Kyoto University Research Information Repository (Kyoto University). 66. 17–22. 3 indexed citations
16.
Okamura, Keizo. (1980). Orientation of cellulose microfibrils.. 63–67. 1 indexed citations
17.
Ogawa, Kozo, et al.. (1979). X-Ray diffraction data for (1→3)-α-d-glucan. Carbohydrate Research. 75. C13–C16. 15 indexed citations
18.
Okamura, Keizo. (1973). Crystal Structure of Cellulose. Journal of the Society of Materials Science Japan. 22(241). 908–912. 1 indexed citations
19.
Okamura, Keizo. (1972). Poly-β-hydroxybutyrate-A. Kobunshi. 21(10). 525–534. 2 indexed citations
20.
Ellar, David J., D. G. Lundgren, Keizo Okamura, & R. H. Marchessault. (1968). Morphology of poly-β-hydroxybutyrate granules. Journal of Molecular Biology. 35(3). 489–502. 99 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Young Teck Kim Breakdown of academic impact, for papers by Taizo Kabe Breakdown of academic impact, for papers by Yi Tong Breakdown of academic impact, for papers by Natanya M. L. Hansen Breakdown of academic impact, for papers by Wenxiu Sun Breakdown of academic impact, for papers by Geoffrey A. R. Nobes Breakdown of academic impact, for papers by Th. Heinze Breakdown of academic impact, for papers by H. J. Purz Breakdown of academic impact, for papers by Mari Granström Breakdown of academic impact, for papers by Frédéric Prochazka
Rankless by CCL
2026