Mariko Ishiwatari

765 total citations
21 papers, 671 citations indexed

About

Mariko Ishiwatari is a scholar working on Mechanics of Materials, Analytical Chemistry and Global and Planetary Change. According to data from OpenAlex, Mariko Ishiwatari has authored 21 papers receiving a total of 671 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Mechanics of Materials, 12 papers in Analytical Chemistry and 5 papers in Global and Planetary Change. Recurrent topics in Mariko Ishiwatari's work include Hydrocarbon exploration and reservoir analysis (13 papers), Petroleum Processing and Analysis (12 papers) and Atmospheric and Environmental Gas Dynamics (5 papers). Mariko Ishiwatari is often cited by papers focused on Hydrocarbon exploration and reservoir analysis (13 papers), Petroleum Processing and Analysis (12 papers) and Atmospheric and Environmental Gas Dynamics (5 papers). Mariko Ishiwatari collaborates with scholars based in Japan, United States and China. Mariko Ishiwatari's co-authors include Ryoshi Ishiwatari, Haru Sakashita, Takahide Tatsumi, H. Tominaga, Brian G. Rohrback, I. R. Kaplan, Naoki Toshima, Hu Yan, Takashi Tatsumi and Hiro-o Tominaga and has published in prestigious journals such as Nature, Geochimica et Cosmochimica Acta and Fuel.

In The Last Decade

Mariko Ishiwatari

21 papers receiving 641 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Mariko Ishiwatari Japan 10 225 177 164 131 129 21 671
Haru Sakashita Japan 8 92 0.4× 189 1.1× 102 0.6× 56 0.4× 112 0.9× 14 473
A. K. Bhatnagar India 16 188 0.8× 207 1.2× 43 0.3× 136 1.0× 89 0.7× 53 762
Hui Tong China 20 40 0.2× 248 1.4× 169 1.0× 118 0.9× 310 2.4× 54 1.0k
Aldo D’Alessio Italy 17 67 0.3× 115 0.6× 148 0.9× 35 0.3× 158 1.2× 36 700
P. Tékély France 12 118 0.5× 119 0.7× 75 0.5× 41 0.3× 178 1.4× 24 710
Masaharu Nishioka United States 21 222 1.0× 120 0.7× 40 0.2× 317 2.4× 384 3.0× 45 1.2k
Junwen Peng China 23 530 2.4× 273 1.5× 28 0.2× 90 0.7× 83 0.6× 44 1.1k
Robert W. Hannah United States 10 43 0.2× 124 0.7× 56 0.3× 78 0.6× 95 0.7× 15 494
Alok Srivastava India 14 92 0.4× 174 1.0× 168 1.0× 42 0.3× 32 0.2× 37 741

Countries citing papers authored by Mariko Ishiwatari

Since Specialization
Citations

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

Fields of papers citing papers by Mariko Ishiwatari

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Mariko Ishiwatari

This figure shows the co-authorship network connecting the top 25 collaborators of Mariko Ishiwatari. A scholar is included among the top collaborators of Mariko Ishiwatari 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 Mariko Ishiwatari. Mariko Ishiwatari 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.
Ishiwatari, Mariko, Keita Yamada, & Ryoshi Ishiwatari. (2000). Pyrolytic Formation of C19 Isoprenoid Hydrocarbons from Dihydrophytol: in Relation to the Genesis of Pristane in Petroleum. Chemistry Letters. 29(3). 206–207. 4 indexed citations
3.
Ishiwatari, Mariko, Ryoshi Ishiwatari, & Keita Yamada. (1997). Two Possible Pathways of Formation of Pristane and Phytane from Chlorophylls on Diagenesis: Carbon Isotopic Results from Laboratory Heating of Chlorophyll-a. Chemistry Letters. 26(4). 355–356. 3 indexed citations
4.
Ishiwatari, Mariko, Ryoshi Ishiwatari, Haru Sakashita, & Takashi Tatsumi. (1995). Application of pyrolysis-gas chromatography to the study of thermal alteration of chlorophyll-a — effect of clay minerals. Journal of Analytical and Applied Pyrolysis. 32. 153–160. 4 indexed citations
5.
Ishiwatari, Mariko, Ryoshi Ishiwatari, Haru Sakashita, Takahide Tatsumi, & H. Tominaga. (1995). J. Anal. Appl. Pyrolysis. Journal of Analytical and Applied Pyrolysis. 31. 249–249. 344 indexed citations
6.
Ishiwatari, Mariko, Ryoshi Ishiwatari, Haru Sakashita, & Takashi Tatsumi. (1995). Thermogravimetry and pyrolysis—GC of chlorophyll-a: with a special emphasis on thermal behavior of its phytyl chain. Journal of Analytical and Applied Pyrolysis. 35(2). 237–247. 14 indexed citations
7.
Toshima, Naoki, et al.. (1994). Novel Preparation of Polyaniline Film from Poly(anthranilic acid) as a Precursor. Chemistry Letters. 23(12). 2229–2232. 26 indexed citations
8.
Toshima, Naoki, Hu Yan, & Mariko Ishiwatari. (1994). Catalytic Polymerization of Aniline and Its Derivatives by Using Copper(II) Salts and Oxygen. New Type of Polyaniline with Branched Structure. Bulletin of the Chemical Society of Japan. 67(7). 1947–1953. 40 indexed citations
9.
Li, Hongling, Koichi Takahashi, Yûsuke Ujihira, et al.. (1993). Thermal behavior of ternary Sm2Fe17N magnets. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 76(1-4). 360–362. 2 indexed citations
10.
Ishiwatari, Mariko, Haru Sakashita, Takashi Tatsumi, & Hiro-o Tominaga. (1993). Thermal decomposition behavior of oil shale kerogens observed by stepwise pyrolysis—gas chromatography. Journal of Analytical and Applied Pyrolysis. 24(3). 273–290. 11 indexed citations
11.
Ishiwatari, Mariko, Ryoshi Ishiwatari, Haru Sakashita, Takashi Tatsumi, & Hirotaka Tominaga. (1993). Effects of maceral composition on pyrolytic behaviour of kerogens. Fuel. 72(6). 891–894. 3 indexed citations
12.
Ishiwatari, Mariko, Ryoshi Ishiwatari, Haru Sakashita, Takashi Tatsumi, & Hiro-o Tominaga. (1991). Pyrolysis of chlorophyll a after preliminary heating at a moderate temperature: Implications for the origin of prist-1-ene on kerogen pyrolysis. Journal of Analytical and Applied Pyrolysis. 18(3-4). 207–218. 42 indexed citations
13.
Ishiwatari, Mariko, Haru Sakashita, Takashi Tatsumi, & Hiro-o Tominaga. (1990). Organic sulphur compounds produced by flash pyrolysis of Timhadit oil shale. Journal of Analytical and Applied Pyrolysis. 17(3). 217–225. 8 indexed citations
14.
Ishiwatari, Mariko, Ryoshi Ishiwatari, Haru Sakashita, Takashi Tatsumi, & Hiro-o Tominaga. (1990). The Effect of Preheating Treatment on the Pyrolysis of Chlorophyll-a. Simulation of Diagenetic Processes in Kerogen Formation. Chemistry Letters. 19(6). 875–878. 4 indexed citations
15.
Ishiwatari, Mariko. (1984). Effect of temperature on the decomposition mechanism of polypropylene. Journal of Polymer Science Polymer Letters Edition. 22(2). 83–88. 6 indexed citations
16.
Ishiwatari, Mariko. (1981). Thermal reaction of β-carotene. Journal of Analytical and Applied Pyrolysis. 2(4). 339–351. 9 indexed citations
17.
Ishiwatari, Mariko. (1980). Thermal reaction of β-carotene. Part 1. Journal of Analytical and Applied Pyrolysis. 2(2). 153–167. 11 indexed citations
18.
Ishiwatari, Mariko, et al.. (1977). Pyrolysis of <i>n</i>-Propylbenzene in the Presence of Hydrogen. Sekiyu Gakkaishi. 20(3). 237–242. 2 indexed citations
19.
Ishiwatari, Ryoshi, Mariko Ishiwatari, Brian G. Rohrback, & I. R. Kaplan. (1977). Thermal alteration experiments on organic matter from recent marine sediments in relation to petroleum genesis. Geochimica et Cosmochimica Acta. 41(6). 815–828. 102 indexed citations
20.
Ishiwatari, Ryoshi, Mariko Ishiwatari, I. R. Kaplan, & Brian G. Rohrback. (1976). Thermal alteration of young kerogen in relation to petroleum genesis. Nature. 264(5584). 347–349. 31 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 Haru Sakashita Breakdown of academic impact, for papers by A. K. Bhatnagar Breakdown of academic impact, for papers by Hui Tong Breakdown of academic impact, for papers by Aldo D’Alessio Breakdown of academic impact, for papers by P. Tékély Breakdown of academic impact, for papers by Masaharu Nishioka Breakdown of academic impact, for papers by Junwen Peng Breakdown of academic impact, for papers by Robert W. Hannah Breakdown of academic impact, for papers by Alok Srivastava
Rankless by CCL
2026