Haruo Okajima

842 total citations
25 papers, 702 citations indexed

About

Haruo Okajima is a scholar working on Organic Chemistry, Molecular Biology and Aquatic Science. According to data from OpenAlex, Haruo Okajima has authored 25 papers receiving a total of 702 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Organic Chemistry, 5 papers in Molecular Biology and 4 papers in Aquatic Science. Recurrent topics in Haruo Okajima's work include Radical Photochemical Reactions (7 papers), Oxidative Organic Chemistry Reactions (5 papers) and Free Radicals and Antioxidants (5 papers). Haruo Okajima is often cited by papers focused on Radical Photochemical Reactions (7 papers), Oxidative Organic Chemistry Reactions (5 papers) and Free Radicals and Antioxidants (5 papers). Haruo Okajima collaborates with scholars based in Japan, Australia and United States. Haruo Okajima's co-authors include Youji Okada, Tohru Hino, Masako Nakagawa, Hiroshi Watanabe, Eisuke F. Sato, Kazuo Ishii, Kazuo Ishii, Bernhard Witkop, Hideyuki Watanabe and S. Kodato and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of the American Chemical Society and Journal of Bacteriology.

In The Last Decade

Haruo Okajima

22 papers receiving 675 citations

Peers

Countries citing papers authored by Haruo Okajima

Since Specialization

Citations

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

Fields of papers citing papers by Haruo Okajima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Haruo Okajima

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Kinetic Study of Sasa veitchii Extract as a Radical Scavenger and an Antioxidant 2012 ·Journal of Food Science ·Youji Okada, Haruo Okajima, (unknown), M Kanamori	8
2	Kinetics and Antioxidative Sites of Capsaicin in Homogeneous Solution 2010 ·Journal of the American Oil Chemists Society ·Youji Okada, Kaoru Tanaka, Eisuke F. Sato, Haruo Okajima	32
3	Antioxidant activity of the new thiosulfinate derivative, S-benzyl phenylmethanethiosulfinate, from Petiveria alliacea L. 2008 ·Organic & Biomolecular Chemistry ·Youji Okada, Kaoru Tanaka, Eisuke F. Sato, Haruo Okajima	25
4	Kinetic and mechanistic studies of allicin as an antioxidant 2006 ·Organic & Biomolecular Chemistry ·Youji Okada, Kaoru Tanaka, Eisuke F. Sato, Haruo Okajima	63
5	A Bacitracin-Resistant Bacillus subtilis Gene Encodes a Homologue of the Membrane-Spanning Subunit of the Bacillus licheniformis ABC Transporter 2002 ·Journal of Bacteriology ·Reiko Ohki, (unknown), Youji Okada, Haruo Okajima, Kei Asai, Yoshito Sadaie, (unknown), (unknown)	52
6	Hydroxyl Radical Scavenging Activity of Naturally Occurring Furan Fatty Acids. 1996 ·Biological and Pharmaceutical Bulletin ·Youji Okada, (unknown), Haruo Okajima	56
7	Antioxidant effect of naturally occurring furan fatty acids on oxidation of linoleic acid in aqueous dispersion 1990 ·Journal of the American Oil Chemists Society ·Youji Okada, Haruo Okajima, (unknown), (unknown), Kazuo Ishii, (unknown), Hiroshi Watanabe	78
8	Effects of phosphatidylcholines containing furan fatty acid on oxidation in multilamellar liposomes. 1989 ·Chemical and Pharmaceutical Bulletin ·Kazuo Ishii, Haruo Okajima, Youji Okada, (unknown)	17
9	Studies on Furan Fatty Acids of Salmon Roe Phospholipids 1988 ·The Journal of Biochemistry ·Kazuo Ishii, Haruo Okajima, Youji Okada, Hiroshi Watanabe	31
10	Photoisomerization of 4-t-Butyl-2-piridones and Chemical Properties of the Resulting 2-Azabicyclo[2.2.0]hex-5-en-3-one and the Hexan-3-one Systems 1987 ·Heterocycles ·Yuichi Kanaoka, Eisuke F. Sato, (unknown), Haruo Okajima	6
11	Tetrahydro-1H-azepine-2,5-dione 1985 ·Journal of Photochemistry ·Yuichi Kanaoka, Yasumaru Hatanaka, Haruo Okajima	2
12	Studies on lipids of crayfish, Procambarus clarkii. I. Furanoid fatty acids. 1984 ·Chemical and Pharmaceutical Bulletin ·Haruo Okajima, Kazuo Ishii, Hiroshi Watanabe	35
13	Photoinduced reactions. 39. Photochemistry of the imide system. 9. Norrish type I reaction of aliphatic cyclic imides. General reaction pattern, competition with type II processes, and some synthetic application 1979 ·The Journal of Organic Chemistry ·Yuichi Kanaoka, Haruo Okajima, Yasumaru Hatanaka	9
14	Synthesis of Multicyclic Keto Lactams by the Photo-ring-expansion of N-(1-Adamantyl)succinimides 1978 ·Heterocycles ·Yuichi Kanaoka, Masanao Terashima, Kazue Ohkura, Haruo Okajima	2
15	Syntheses of Medium-sized Lactam Systems by the Photo-ring-enlargment of N-Substituted Alicyclic Imides 1978 ·Heterocycles ·Yuichi Kanaoka, Haruo Okajima, Yasumaru Hatanaka	1
16	A valid model for the mechanism of oxidation of tryptophan to formylkynurenine—25 years later 1977 ·Proceedings of the National Academy of Sciences ·Masako Nakagawa, Hideyuki Watanabe, S. Kodato, Haruo Okajima, Tohru Hino, J. L. Flippen, Bernhard Witkop	86
17	Photosensitized oxygenation of Nb-methoxycarbonyltryptamines. A new pathway to kynurenine derivatives 1977 ·Journal of the American Chemical Society ·Masako Nakagawa, Haruo Okajima, Tohru Hino	56
18	Photosensitized oxygenation of Nb-methoxycarbonyltryptophan methyl ester and Nb-methoxycarbonyltryptamine. Isolation and novel transformations of a 3a-hydroxyperoxypyrroloindole 1976 ·Journal of the American Chemical Society ·Masako Nakagawa, Haruo Okajima, Tohru Hino	26
19	Photosensitized Oxygenation of Tryptophan and Melatonin Related Compounds 1976 ·Heterocycles ·Masako Nakagawa, Haruo Okajima, Jun Chiba, Hideyuki Watanabe, Tohru Hino	0
20	Oxygenation of Tryptamine and Tryptophan Derivatives 1974 ·Heterocycles ·Masako Nakagawa, Takao Kaneko, (unknown), Haruo Okajima, Tohru Hino	0

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