Oka

27 papers receiving 287 citations

Peers

Oka
Comparison fields: 5 of 82
  • Virology 19
  • Neurology 42
  • Pathology and Forensic Medicine 49
  • Cancer Research 39
  • Periodontics 12
Replace Hisayoshi Igarashi with:
Hisayoshi Igarashi Japan
Pedro Rodríguez‐Jiménez Spain
Chunyu Tan China
Kai Duan Canada
Fanny Delfanti Italy
Massimo Maffei Italy
Gun Jönsson Sweden
Miyuki Saito Japan
Luciana Nichita Romania
Yasuaki Miyazaki Japan
Oka relative to Hisayoshi Igarashi Japan Hisayoshi Igarashi's profile →
Citations per field
00.5×3.2×
Hisayoshi Igarashi · 1×
Citations per year

Countries citing papers authored by Oka

Since Specialization
Citations

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

Fields of papers citing papers by Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Oka, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Oka Line = papers co-authored together Oka links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 31 papers — load more, or switch the sort, to bring in the rest.

#Work
1 200957
2 199843
3 199941
4
Nicotine Treatment Induces Expression of Matrix Metalloproteinases in Human Osteoblastic Saos-2 Cells
200624
5 199422
6 199920
7 201317
8 201314
9 200913
10
Comparison of Embodied Energy/CO2 of Office Buildings in China and Japan
20157
11
Clinical significance of type VI pit pattern subclassification in determining the depth of invasion of colorectal neoplasms
20085
12 19994
13 19984
14 19973
15
Constitutive Activation of Mitogen-activated Protein(MAP) Kinases in Human Renal Cell Carinoma.
19962
16
High-speed waveguide switches for optical routers and networks
20042
17
A common mode noise filter for high speed and wide band differential mode signal transmission
20112
18
Endoscopic appearance of AIDS-related gastrointestinal lymphoma with c-MYC rearrangements: Case report and literature review
20132
19
Polynomial Normal Form of a Plane Curve with a Given Weight Sequence
19952
20
A preliminary study on the effects of pyroclastic fall deposit on the forest eco-system in southwestern Hokkaido, Japan
19962

About Oka

Oka is a scholar working on Virology, Oncology, Gastroenterology, Rheumatology and Radiology, Nuclear Medicine and Imaging, having authored 31 papers that have together received 296 indexed citations. Recurring topics across this work include Semiconductor Quantum Structures and Devices (2 papers), 3D IC and TSV technologies (2 papers), Advancements in Semiconductor Devices and Circuit Design (2 papers), Helicobacter pylori-related gastroenterology studies (2 papers), Semiconductor Lasers and Optical Devices (2 papers), Cancer-related gene regulation (2 papers), Electromagnetic Compatibility and Noise Suppression (2 papers) and Cancer Treatment and Pharmacology (1 paper). The work is most often cited by research in Virology (19 citations), Neurology (42 citations), Pathology and Forensic Medicine (49 citations), Cancer Research (39 citations) and Periodontics (12 citations). Oka has collaborated with scholars based in Japan, France and Spain. Frequent co-authors include Masatake Tanaka, Yasuo Takahashi, Yukiko Nagashima, Itoh, Nakamura, Hara, Atsushi Hayashi, Сузуки, Yokoyama and Fujita Fujita. Their work appears in journals such as Oncology Reports, Immunology, Histopathology, OncoTargets and Therapy and International Journal of Oncology.

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

Rankless by CCL
2026