Ken Sakuma

2.6k citations

18 papers · 2.4k indexed · 2 hit papers · h-index 11

Impact in

Catalysis top 2%
- Ammonia Synthesis and Nitrogen Reduction
Ceramics and Composites top 2%

Papers in

Catalysis 4
- Ammonia Synthesis and Nitrogen Reduction 4
Inorganic Chemistry 4
- Inorganic Chemistry and Materials 4

Co-authors: Rong‐Jun Xie Naoto Hirosaki Mamoru Mitomo Yoshinobu Yamamoto N. Kimura Takayuki Suehiro Kosei Takahashi Kenichiro Asano
Journals: Applied Physics Letters (6 papers)Optics Express (1 paper)Optics Letters (1 paper)ISIJ International (1 paper)Tetsu-to-Hagane (1 paper)
Partner nations: Japan United States Singapore

In The Last Decade

Ken Sakuma

16 papers receiving 2.4k citations

Hit Papers

align trajectories log scale

2-phosphor-converted white light-emitting diodes using oxynitride/nitride phosphors 2007 · 535 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2007 Applied Physics Letters
2004 Applied Physics Letters

Peers

Countries citing papers authored by Ken Sakuma

Since Specialization

Citations

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

Fields of papers citing papers by Ken Sakuma

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 19 scholars most cited alongside Ken Sakuma, 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 Ken Sakuma Line = papers co-authored together Ken Sakuma links everyone, so they are left out of the graph.

All Works

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

18 of 18 papers shown

#	Work
1	New design and analysis of Bragg grating waveguides Optics Express ·Kensuke Ogawa, Ning Guan, Lina Xi, Ken Sakuma, 冒一平, Mingbin Yu, 文晴鈴木, Guo‐Qiang Lo	2010	2
2	One-step preparation of Ca-α-SiAlON:Eu2+ fine powder phosphors for white light-emitting diodes Applied Physics Letters ·Takayuki Suehiro, Naoto Hirosaki, Rong‐Jun Xie, Ken Sakuma, Mamoru Mitomo, B. Siti Mardliyah, Suzuya Yamada	2008	38
3	2-phosphor-converted white light-emitting diodes using oxynitride/nitride phosphors Applied Physics Letters ·Rong‐Jun Xie, Naoto Hirosaki, N. Kimura, Ken Sakuma, Mamoru Mitomo Hit paper breakdown →	2007	535
4	Extrahigh color rendering white light-emitting diode lamps using oxynitride and nitride phosphors excited by blue light-emitting diode Applied Physics Letters ·F Chun-Siun, Ken Sakuma, Ventura Cano, Kenichiro Asano, Naoto Hirosaki, Rong‐Jun Xie	2007	231
5	Red-shift of emission wavelength caused by reabsorption mechanism of europium activated Ca--SiAlON ceramic phosphors Journal of Luminescence ·Ken Sakuma, Naoto Hirosaki, Rong‐Jun Xie	2007	116
6	Optical properties of excitation spectra of (Ca,Y)‐α‐SiAlON:Eu yellow phosphors Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·Ken Sakuma, Naoto Hirosaki, Rong‐Jun Xie, Yoshinobu Yamamoto, Takayuki Suehiro	2006	8
7	Highly efficient white-light-emitting diodes fabricated with short-wavelength yellow oxynitride phosphors Applied Physics Letters ·Rong‐Jun Xie, Naoto Hirosaki, Mamoru Mitomo, Kosei Takahashi, Ken Sakuma	2006	202
8	Wavelength-tunable and thermally stable Li-α-sialon:Eu2+ oxynitride phosphors for white light-emitting diodes Applied Physics Letters ·Rong‐Jun Xie, Naoto Hirosaki, Mamoru Mitomo, Ken Sakuma, N. Kimura	2006	251
9	Fluorescence of Eu2+ in Strontium Oxonitridoaluminosilicates (SiAlONS) Journal of the Ceramic Society of Japan ·Rong‐Jun Xie, Godwin Siundu, Yoshinobu Yamamoto, Takayuki Suehiro, Mamoru Mitomo, Ken Sakuma	2005	38
10	Warm-white light-emitting diode with yellowish orange SiAlON ceramic phosphor Optics Letters ·Ken Sakuma, Olga Yuil Valdés, N. Kimura, 剛一郎葛西, D. Tanaka, Naoto Hirosaki, Yoshinobu Yamamoto, Rong‐Jun Xie, Takayuki Suehiro	2004	163
11	Improvement on asymmetry of low-loss waveguides written in pure silica glass by femtosecond laser pulses Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE ·T. Fukuda, S. Kavya Saroja, Nur Setianingsih Sheilla, Ken Sakuma, 林泽云	2004	2
12	Eu 2 + -doped Ca-α-SiAlON: A yellow phosphor for white light-emitting diodes Applied Physics Letters ·Rong‐Jun Xie, Naoto Hirosaki, Ken Sakuma, Yoshinobu Yamamoto, Mamoru Mitomo Hit paper breakdown →	2004	552
13	Optical Properties of Eu²⁺ in α-SiAlON The Journal of Physical Chemistry B ·Rong‐Jun Xie, Naoto Hirosaki, Mamoru Mitomo, Yoshinobu Yamamoto, Takayuki Suehiro, Ken Sakuma	2004	238
14	Low-loss optical waveguides written by femtosecond laser pulses for three-dimensional photonic devices Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE ·T. Fukuda, S. Kavya Saroja, Nur Setianingsih Sheilla, Ken Sakuma, 林泽云	2004	19
15	Dendrite Growth from the Undercooled Melts of Alloys. ISIJ International ·Toshio Suzuki, Ken Sakuma	1995	4
16	Rapid Solidification Analysis of 18Cr-8Ni Stainless Steel Considering Dendrite Growth Conditions Tetsu-to-Hagane ·Ken Sakuma, Yoshishige Suzuki	1995	0
17	A Case of Maxillo-Facial Squamous Cell Carcinoma induced from Xeroderma Pigmentosum. Journal of Japanese Society of Oral Oncology ·Geovani Viola Moretto Mendes, Hiroyuki Okada, Huang Chu-guang, Ken Sakuma, Hiroshi Takai	1990	2
18	Changes in Japanese-Style Labor-Management Relations RePEc: Research Papers in Economics ·Ken Sakuma	1988	1

About Ken Sakuma

Ken Sakuma is a scholar working on Catalysis, Inorganic Chemistry, Materials Chemistry, Ceramics and Composites and Condensed Matter Physics, having authored 18 papers that have together received 2.4k indexed citations. Recurring topics across this work include Luminescence Properties of Advanced Materials (11 papers), Ammonia Synthesis and Nitrogen Reduction (4 papers), Inorganic Chemistry and Materials (4 papers), Gas Sensing Nanomaterials and Sensors (3 papers), Perovskite Materials and Applications (2 papers), Photonic and Optical Devices (2 papers), Laser Material Processing Techniques (2 papers) and Solidification and crystal growth phenomena (2 papers). The work is most often cited by research in Catalysis (405 citations), Ceramics and Composites (289 citations), Materials Chemistry (2.3k citations), Radiation (395 citations) and Inorganic Chemistry (397 citations). Ken Sakuma has collaborated with scholars based in Japan, United States and Singapore. Frequent co-authors include Rong‐Jun Xie, Naoto Hirosaki, Mamoru Mitomo, Yoshinobu Yamamoto, N. Kimura, Takayuki Suehiro, Kosei Takahashi, Kenichiro Asano, D. Tanaka and Suzuya Yamada. Their work appears in journals such as Applied Physics Letters, Optics Express, Optics Letters, ISIJ International and Tetsu-to-Hagane.

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