Hirotoshi Samejima

569 total citations
35 papers, 394 citations indexed

About

Hirotoshi Samejima is a scholar working on Molecular Biology, Biochemistry and Biotechnology. According to data from OpenAlex, Hirotoshi Samejima has authored 35 papers receiving a total of 394 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Molecular Biology, 7 papers in Biochemistry and 6 papers in Biotechnology. Recurrent topics in Hirotoshi Samejima's work include Amino Acid Enzymes and Metabolism (7 papers), Biochemical and Molecular Research (7 papers) and Biopolymer Synthesis and Applications (6 papers). Hirotoshi Samejima is often cited by papers focused on Amino Acid Enzymes and Metabolism (7 papers), Biochemical and Molecular Research (7 papers) and Biopolymer Synthesis and Applications (6 papers). Hirotoshi Samejima collaborates with scholars based in Japan, Singapore and United States. Hirotoshi Samejima's co-authors include Jack Myers, Minoru Nagashima, Shukuo KINOSHITA, Takashi NARA, Kazuo Kimura, Masanobu Kawai, Kiyoshi Nakayama, Minoru Ito, Hisao Tanaka and Isao Karube and has published in prestigious journals such as Annals of the New York Academy of Sciences, Biotechnology and Bioengineering and Biochimie.

In The Last Decade

Hirotoshi Samejima

34 papers receiving 344 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hirotoshi Samejima Japan 9 234 116 75 44 41 35 394
J. Řičica Czechia 9 190 0.8× 85 0.7× 55 0.7× 35 0.8× 33 0.8× 24 367
Z. Fencl Czechia 12 234 1.0× 129 1.1× 32 0.4× 48 1.1× 37 0.9× 40 371
Yvonne Chow Singapore 16 395 1.7× 146 1.3× 139 1.9× 88 2.0× 30 0.7× 40 623
A. A. Spark South Africa 9 81 0.3× 98 0.8× 15 0.2× 42 1.0× 26 0.6× 16 316
D. S. CALLOW United States 9 190 0.8× 138 1.2× 45 0.6× 31 0.7× 17 0.4× 11 316
Pamela A. D. Rickard Australia 13 210 0.9× 150 1.3× 18 0.2× 68 1.5× 35 0.9× 25 336
Minoru Nagashima Japan 6 201 0.9× 100 0.9× 11 0.1× 29 0.7× 19 0.5× 10 309
Jesús Mirón Spain 12 223 1.0× 97 0.8× 19 0.3× 70 1.6× 47 1.1× 22 386
W. Hampel Austria 12 273 1.2× 133 1.1× 16 0.2× 62 1.4× 33 0.8× 37 456
Daniela Ewe Czechia 11 170 0.7× 75 0.6× 111 1.5× 22 0.5× 46 1.1× 14 411

Countries citing papers authored by Hirotoshi Samejima

Since Specialization
Citations

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

Fields of papers citing papers by Hirotoshi Samejima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hirotoshi Samejima

This figure shows the co-authorship network connecting the top 25 collaborators of Hirotoshi Samejima. A scholar is included among the top collaborators of Hirotoshi Samejima 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 Hirotoshi Samejima. Hirotoshi Samejima 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.
Nagashima, Minoru, et al.. (1984). Continuous ethanol fermentation using immobilized yeast cells. Biotechnology and Bioengineering. 26(8). 992–997. 114 indexed citations
2.
Samejima, Hirotoshi, et al.. (1984). Semicommercial Production of Ethanol Using Immobilized Microbial Cellsa. Annals of the New York Academy of Sciences. 434(1). 394–405. 9 indexed citations
3.
4.
5.
Kimura, Kazuo, et al.. (1977). Alkali protease and alcohol dehydrogenase immobilized to weakly basic anion exchange resins using 2-carboxymethylamino-4,6-dichloro-s-triazine.. Agricultural and Biological Chemistry. 41(3). 547–552. 1 indexed citations
6.
Morikawa, Yasushi, et al.. (1976). Dichloro-s-triazinyl resin as a carrier of immobilized enzyme.. Agricultural and Biological Chemistry. 40(6). 1137–1142. 4 indexed citations
7.
Samejima, Hirotoshi, et al.. (1969). Properties of Lysine-Enriched Rice. NIPPON SHOKUHIN KOGYO GAKKAISHI. 16(5). 216–218. 13 indexed citations
8.
Samejima, Hirotoshi, et al.. (1968). Antioxidant Activity of 3-Methylthiopropylamine Hydrochloride. Agricultural and Biological Chemistry. 32(7). 846–850. 5 indexed citations
9.
Furukawa, Hideyuki, et al.. (1968). Growth-Promoting Factors forLactobacillus bifidusvar.pennsylvanicusProduced by the Amino-Carbonyl Reaction ofl-Lysine andd-Glucose. Agricultural and Biological Chemistry. 32(5). 617–623. 2 indexed citations
10.
Samejima, Hirotoshi, et al.. (1968). Antioxidant Activity of 3-Methylthiopropylamine Hydrochloride. Agricultural and Biological Chemistry. 32(7). 846–850. 2 indexed citations
11.
Samejima, Hirotoshi, et al.. (1967). LOW TEMPERATURE CHARACTERISTICS OF SOME BLENDED RUBBERS. NIPPON GOMU KYOKAISHI. 40(2). 103–115. 1 indexed citations
12.
Samejima, Hirotoshi, et al.. (1966). Conversion of Orotic Acid to Uridine-5'-monophosphate by Enzymes of Micrococcus glutamicus. Agricultural and Biological Chemistry. 30(1). 83–88. 2 indexed citations
13.
Samejima, Hirotoshi, et al.. (1966). Purification and Properties of Orotidine-5'-phosphate Pyrophosphorylase in Micrococcus glutamicus. Agricultural and Biological Chemistry. 30(3). 254–260. 1 indexed citations
14.
NARA, Takashi, Hirotoshi Samejima, & Shukuo KINOSHITA. (1964). Effect of Penicillin on Amino Acid Fermentation. Agricultural and Biological Chemistry. 28(2). 120–124. 7 indexed citations
15.
NARA, Takashi, et al.. (1961). L-Homoserine Fermentation. Agricultural and Biological Chemistry. 25(7). 532–541. 11 indexed citations
16.
Samejima, Hirotoshi, et al.. (1961). NEGATIVE FEED-BACK CONTROL CAUSED BY THREONINE AND METHIONINE IN L-HOMOSERINE FERMENTATION. The Journal of General and Applied Microbiology. 7(Suppl1). 327–340. 2 indexed citations
17.
NARA, Takashi, et al.. (1961). l-Homoserine Fermentation. Agricultural and Biological Chemistry. 25(7). 532–541. 7 indexed citations
18.
KINOSHITA, Shukuo, et al.. (1960). L-HOMOSERINE FERMENTATION (PRELIMINARY REPORT). The Journal of General and Applied Microbiology. 6(3). 193–195. 2 indexed citations
19.
Samejima, Hirotoshi & Jack Myers. (1958). On the Heterotrophic Growth of Chlorella pyrenoidosa. Journal of General Microbiology. 18(1). 107–117. 99 indexed citations
20.
Samejima, Hirotoshi, et al.. (1954). Spectrophotometric Determination of Amino Acids. Nippon Nōgeikagaku Kaishi. 28(10). 775–781. 4 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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