Nobuo Okazaki

5.2k total citations · 1 hit paper
83 papers, 4.1k citations indexed

About

Nobuo Okazaki is a scholar working on Hepatology, Molecular Biology and Surgery. According to data from OpenAlex, Nobuo Okazaki has authored 83 papers receiving a total of 4.1k indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Hepatology, 19 papers in Molecular Biology and 18 papers in Surgery. Recurrent topics in Nobuo Okazaki's work include Hepatocellular Carcinoma Treatment and Prognosis (25 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (16 papers) and Enzyme Structure and Function (12 papers). Nobuo Okazaki is often cited by papers focused on Hepatocellular Carcinoma Treatment and Prognosis (25 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (16 papers) and Enzyme Structure and Function (12 papers). Nobuo Okazaki collaborates with scholars based in Japan, United States and United Kingdom. Nobuo Okazaki's co-authors include Hiroshi Hasegawa, Kunio Okuda, Yukio Nakajima, Hiroshi Obata, Toshio Ohtsuki, Kunihiko Ohnishi, Masahiko Tomimatsu, Kenichi Takayasu, Masatoshi Makuuchi and Yukio Muramatsu and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Lancet and Journal of Biological Chemistry.

In The Last Decade

Nobuo Okazaki

82 papers receiving 4.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Natural history of hepatocellular carcinoma and prognosis in relation to treatment study of 850 patients

1985 1.6k citations Nobuo Okazaki, Hiroshi Hasegawa et al. Cancer profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Nobuo Okazaki Japan	26	2.8k	1.6k	1.0k	748	621	83	4.1k
Hiroshi Obata Japan	26	2.6k 0.9×	1.7k 1.0×	873 0.8×	607 0.8×	358 0.6×	106	3.8k
Loreto Boix Spain	29	2.7k 0.9×	1.9k 1.2×	694 0.7×	845 1.1×	434 0.7×	68	4.4k
Masanori Matsuda Japan	36	1.7k 0.6×	1.4k 0.9×	816 0.8×	858 1.1×	391 0.6×	134	4.2k
Satoru Hagiwara Japan	34	2.1k 0.7×	1.3k 0.8×	583 0.6×	743 1.0×	602 1.0×	162	3.7k
Mary A. Maluccio United States	26	1.7k 0.6×	1.0k 0.6×	1.2k 1.2×	1.1k 1.5×	695 1.1×	77	4.4k
Haeryoung Kim South Korea	37	1.6k 0.6×	1.9k 1.2×	1.6k 1.5×	1.8k 2.3×	761 1.2×	226	5.7k
Hiroshi Ishii Japan	37	1.3k 0.4×	993 0.6×	1.3k 1.3×	2.3k 3.1×	1.2k 1.9×	180	4.4k
Katsunori Imai Japan	38	1.4k 0.5×	632 0.4×	1.3k 1.3×	1.8k 2.5×	677 1.1×	289	4.9k
Ja Kyung Kim South Korea	34	2.5k 0.9×	2.1k 1.3×	800 0.8×	383 0.5×	330 0.5×	149	3.8k
R. Vilana Spain	39	6.7k 2.3×	4.5k 2.8×	1.9k 1.8×	1.1k 1.4×	836 1.3×	92	8.2k

Countries citing papers authored by Nobuo Okazaki

Since Specialization

Citations

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

Fields of papers citing papers by Nobuo Okazaki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Nobuo Okazaki

This figure shows the co-authorship network connecting the top 25 collaborators of Nobuo Okazaki. A scholar is included among the top collaborators of Nobuo Okazaki 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 Nobuo Okazaki. Nobuo Okazaki 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

Arai, Shigeki, Nobuo Okazaki, Fumiko Matsumoto, et al.. (2015). Structure of a highly acidic β-lactamase from the moderate halophileChromohalobactersp. 560 and the discovery of a Cs⁺-selective binding site. Acta Crystallographica Section D Biological Crystallography. 71(3). 541–554. 7 indexed citations

Arimori, Takao, Shoko Shinya, Nobuo Okazaki, et al.. (2013). Crystal Structures of the Catalytic Domain of a Novel Glycohydrolase Family 23 Chitinase from Ralstonia sp. A-471 Reveals a Unique Arrangement of the Catalytic Residues for Inverting Chitin Hydrolysis. Journal of Biological Chemistry. 288(26). 18696–18706. 32 indexed citations

Kado, Yuji, Kosuke Aritake, Nobuko Uodome, et al.. (2012). Human hematopoietic prostaglandin D synthase inhibitor complex structures. The Journal of Biochemistry. 151(4). 447–455. 7 indexed citations

Arai, Shigeki, Nobuo Okazaki, Fumiko Matsumoto, et al.. (2012). A structural mechanism for dimeric to tetrameric oligomer conversion in Halomonas sp. nucleoside diphosphate kinase. Protein Science. 21(4). 498–510. 14 indexed citations

Okazaki, Nobuo, Motoyasu Adachi, Taro Tamada, et al.. (2011). Crystallization and preliminary neutron diffraction studies of ADP-ribose pyrophosphatase-I fromThermus thermophilusHB8. Acta Crystallographica Section F Structural Biology and Crystallization Communications. 68(1). 49–52. 1 indexed citations

Kurihara, Kazuo, Nobuo Okazaki, & Ryota Kuroki. (2010). Neutron Diffraction Experiments for Protein. RADIOISOTOPES. 59(4). 263–277. 1 indexed citations

Kuroki, Ryota, Nobuo Okazaki, Motoyasu Adachi, et al.. (2010). Towards investigation of the inhibitor-recognition mechanisms of drug-target proteins by neutron crystallography. Acta Crystallographica Section D Biological Crystallography. 66(11). 1126–1130. 2 indexed citations

Okazaki, Nobuo, Kazuya Hasegawa, Go Ueno, et al.. (2008). Mail-in data collection at SPring-8 protein crystallography beamlines. Journal of Synchrotron Radiation. 15(3). 288–291. 39 indexed citations

Okazaki, Nobuo, et al.. (2007). Structure of a UPF0150-family protein fromThermus thermophilusHB8. Acta Crystallographica Section F Structural Biology and Crystallization Communications. 63(3). 173–177. 2 indexed citations

10.

Tanaka, Rie, Shigeru Sanada, Nobuo Okazaki, et al.. (2007). Detectability of Regional Lung Ventilation with Flat-panel Detector-based Dynamic Radiography. Journal of Digital Imaging. 21(1). 109–120. 15 indexed citations

11.

Inoue, Tsuyoshi, Daisuke Irikura, Nobuo Okazaki, et al.. (2003). Mechanism of metal activation of human hematopoietic prostaglandin D synthase. Nature Structural & Molecular Biology. 10(4). 291–296. 56 indexed citations

12.

Okazaki, Nobuo. (2000). PACS Implementation Guide for the Filmless Hospital No.3. Japanese Journal of Radiological Technology. 56(7). 879–884. 1 indexed citations

13.

Morito, Ken, Keiji Sato, Y. Kotaki, et al.. (1994). Ultrahigh-speed, low chirp butt-joint MQW structure modulator integrated DFB laser. Conference on Lasers and Electro-Optics. 8. 238–239. 2 indexed citations

14.

Okada, Shuichi, Nobuo Okazaki, Haruhiko Nose, et al.. (1992). Evaluation of chemotherapeutic effects in hepatocellular carcinoma based on survival analysis.. Kanzo. 33(1). 9–14. 1 indexed citations

15.

Muraiso, Kanae, Makoto Hijikata, Nobuo Okazaki, et al.. (1991). Detection of Hepatitis C Virus Infection by Enzyme‐linked Immunosorbent Assay System Using Core Protein Expressed in Escherichia coli. Japanese Journal of Cancer Research. 82(8). 879–882. 9 indexed citations

16.

Numata, Kazushi, Kenichi Takayasu, Yukio Muramatsu, et al.. (1989). Clinico-pathological study of cholangiocellular carcinoma.. The Japanese Journal of Gastroenterological Surgery. 22(10). 2375–2382. 2 indexed citations

17.

Okazaki, Nobuo, Masahiro Yoshino, Takanobu Yoshida, et al.. (1989). Evaluation of the prognosis for small hepatocellular carcinoma based on tumor volume doubling time. A preliminary report. Cancer. 63(11). 2207–2210. 101 indexed citations

18.

Takayasu, Kenichi, Michihiro Suzuki, Katsuhiko Uesaka, et al.. (1989). Hepatic artery embolization for inoperable hepatocellular carcinoma; prognosis and Risk Factors. Cancer Chemotherapy and Pharmacology. 23(S1). S123–S125. 49 indexed citations

19.

Okazaki, Nobuo, et al.. (1988). Phase II trial of mitoxantrone in patients with hepatocellular carcinoma. European Journal of Cancer and Clinical Oncology. 24(12). 1897–1898. 15 indexed citations

20.

Okazaki, Nobuo, et al.. (1972). . Kanzo. 13(9). 510–515. 1 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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