Hiroshi Namikawa

1.9k total citations · 1 hit paper
38 papers, 1.6k citations indexed

About

Hiroshi Namikawa is a scholar working on Ceramics and Composites, Materials Chemistry and Electrical and Electronic Engineering. According to data from OpenAlex, Hiroshi Namikawa has authored 38 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Ceramics and Composites, 26 papers in Materials Chemistry and 7 papers in Electrical and Electronic Engineering. Recurrent topics in Hiroshi Namikawa's work include Glass properties and applications (31 papers), Luminescence Properties of Advanced Materials (12 papers) and Phase-change materials and chalcogenides (10 papers). Hiroshi Namikawa is often cited by papers focused on Glass properties and applications (31 papers), Luminescence Properties of Advanced Materials (12 papers) and Phase-change materials and chalcogenides (10 papers). Hiroshi Namikawa collaborates with scholars based in Poland, Japan and Hong Kong. Hiroshi Namikawa's co-authors include Kazuo Arai, Ken Kumata, Yoshiro Ishii, Takashi Handa, Tatsutoku Honda, Shōgo Saito, Kenichi Arai, Toshiro Tani, Akio Makishima and Kazunori Kadota and has published in prestigious journals such as Journal of Applied Physics, Journal of The Electrochemical Society and Journal of the American Ceramic Society.

In The Last Decade

Hiroshi Namikawa

36 papers receiving 1.5k citations

Hit Papers

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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.

Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glass

1986 490 citations Kazuo Arai, Hiroshi Namikawa et al. profile →

Peers

Countries citing papers authored by Hiroshi Namikawa

Since Specialization

Citations

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

Fields of papers citing papers by Hiroshi Namikawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroshi Namikawa

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

#	Work	Indexed citations
1	The Irreversible and Reversible Changes in Silica Glasses Observed by Electrical Properties (Part 2) 1995 ·Journal of the Ceramic Society of Japan ·(unknown), Hiroshi Namikawa	2
2	Conduction Current Relaxation of Inhomogeneous Conductor I : Electrical Properties of Condensed Matter 1988 ·Japanese Journal of Applied Physics ·(unknown), Hiroshi Namikawa	34
3	ROLE OF FLUORINE AS A CODOPANT IN CERIUM ACTIVATED SILICA GLASS. 1988 ·Physics and chemistry of glasses ·(unknown), Kazuo Arai, (unknown), (unknown), Hiroshi Namikawa	6
4	Conduction Current Relaxation of Inhomogeneous Conductor I 1988 ·Japanese Journal of Applied Physics ·(unknown), Hiroshi Namikawa	64
5	Preparation of Cerium‐Activated Silica Glasses: Phosphorus and Aluminum Codoping Effects on Absorption and Fluorescence Properties 1987 ·Journal of the American Ceramic Society ·Yoshiro Ishii, Kazuo Arai, Hiroshi Namikawa, Mitsuhiro Tanaka, Akira Negishi, Takashi Handa	67
6	Preparation of Nd-Al Co-doped SiO<sub>2</sub> Glass by Plasma Torch CVD and Its Fluorescence Properties 1985 ·Journal of the Ceramic Association Japan ·Yoshiro Ishii, Hiroshi Namikawa, Kazuo Arai, Akihiro Noda, Akira Negishi, Takashi Handa	7
7	Fluorescence and its Nd³⁺ Concentration Dependence of Nd-Doped SiO₂ Glasses Prepared by Plasma Torch CVD 1983 ·Japanese Journal of Applied Physics ·Kazuo Arai, Hiroshi Namikawa, Ken Kumata, Yoshiro Ishii, Hiroki Tanaka, (unknown)	26
8	Photoconduction of CdO⋅SiO<sub>2</sub>⋅Na<sub>2</sub>O Photochromic Glass 1982 ·Journal of the Ceramic Association Japan ·(unknown), Ken Kumata, Hiroshi Namikawa	1
9	Dark Current and Dielectric Relaxation of CdO⋅SiO<sub>2</sub>⋅Na<sub>2</sub>O Photochromic Glass in Faded State 1980 ·Journal of the Ceramic Association Japan ·(unknown), Ken Kumata, Hiroshi Namikawa	1
10	Multiple Diffusion Process in Oxide Glasses 1976 ·Medical Entomology and Zoology ·Hiroshi Namikawa	0
11	The Residual Photocurrent of Amorphous As₂Se₃ 1976 ·Japanese Journal of Applied Physics ·Hidetoshi Oheda, Hiroshi Namikawa	5
12	Measurements of dielectric relaxation in oxide glasses by means of the absorption current method. 1975 ·Journal of the Ceramic Association Japan ·Hiroshi Namikawa	2
13	Characterization of the diffusion process in oxide glasses based on the correlation between electric conduction and dielectric relaxation 1975 ·Journal of Non-Crystalline Solids ·Hiroshi Namikawa	292
14	Electric Conduction and Dielectric Properties of Bi<sub>2</sub>O<sub>3</sub>-B<sub>2</sub>O<sub>3</sub> Glasses 1974 ·Journal of the Ceramic Association Japan ·(unknown), Ken Kumata, Hiroshi Namikawa	3
15	Pressure effects on electrical conduction in glasses 1973 ·Journal of Non-Crystalline Solids ·Kazuo Arai, Ken Kumata, Kazunori Kadota, Kei Yamamoto, Hiroshi Namikawa, Shōgo Saito	122
16	Effects of Densification on Electrical and Optical Properties of Chalcogenide Glasses 1973 ·Japanese Journal of Applied Physics ·Kazuo Arai, (unknown), Hiroshi Namikawa, Shōgo Saito	8
17	ESR in GeS glasses 1973 ·Solid State Communications ·Kenichi Arai, Hiroshi Namikawa	58
18	D. C. Conduction and Low Frequency Dielectric Absorption of Electronically Conducting Oxide Glasses in Low Temperature Region 1969 ·Journal of the Ceramic Association Japan ·Hiroshi Namikawa	3
19	D. C. Polarization and Dielectric Relaxation in Electronic Conduction Oxide Glasses 1968 ·Journal of the Ceramic Association Japan ·Hiroshi Namikawa, Ken Kumata	8
20	Lack of Boronanomaly in D. C. Conduction and Low Frequency Dielectric Absorption in a Series of Alkali Borosilicate Glasses 1968 ·Journal of the Ceramic Association Japan ·Ken Kumata, Hiroshi Namikawa, Tatsuji Nakajima, (unknown)	1

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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