Dr. Tsunemasa Taguchi Profile

Dr. Tsunemasa Taguchi

Professor at Yamaguchi Univ

SPIE Involvement:

Author

Proceedings Article | 24 February 2010 Paper

A novel imaging system of optical detection on cancers and tissues in gastrointestinal endoscope using high-color-rendering white and color tunable LEDs

Jun Nishikawa, Tsunemasa Taguchi, Yuji Uchida, Satoshi Kurai, Hideo Yanai, Shu Kiyotoki, Takeshi Okamoto, Shingo Higaki, Isao Sakaida

Proceedings Volume 7558, 75580F (2010) https://doi.org/10.1117/12.843386

KEYWORDS: Light emitting diodes, Endoscopes, Prototyping, Light sources, Cancer, RGB color model, Imaging systems, Light, Tissue optics, Tissues

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Proceedings Article | 18 August 2009 Paper

Recent progress and future prospect of high-performance near-UV based white LEDs: from ECO lighting to medical application

Tsunemasa Taguchi

Proceedings Volume 7422, 74220B (2009) https://doi.org/10.1117/12.829225

KEYWORDS: Light emitting diodes, Endoscopes, Lamps, Light sources and illumination, RGB color model, LED lighting, Near ultraviolet, Radium, Light, Luminous efficacy

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Proceedings Article | 13 February 2007 Paper

Warm white LEDs lighting over Ra=95 and its applications

Katsuya Kobashi, Tsunemasa Taguchi

Proceedings Volume 6486, 648610 (2007) https://doi.org/10.1117/12.698197

KEYWORDS: Light emitting diodes, LED lighting, Light sources and illumination, Endoscopes, RGB color model, Luminescence, Radium, Near ultraviolet, Blue light emitting diodes, Mouth

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SPIE Journal Paper | 1 December 2005

Lighting theory and luminous characteristics of white light-emitting diodes

Yuji Uchida, Tsunemasa Taguchi

OE, Vol. 44, Issue 12, 124003, (December 2005) https://doi.org/10.1117/12.10.1117/1.2131071

KEYWORDS: Light emitting diodes, LED lighting, Light sources and illumination, Light sources, Luminous efficacy, Radium, Near ultraviolet, Lamps, RGB color model, Optical engineering

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Proceedings Article | 7 March 2005 Paper

Imaging camera system of OYGBR-phosphor-based white LED lighting

Katsuya Kobashi, Tsunemasa Taguchi

Proceedings Volume 5739, (2005) https://doi.org/10.1117/12.589901

KEYWORDS: Light emitting diodes, Light sources, Luminescence, Imaging systems, LED lighting, Cameras, Endoscopes, High speed imaging, High speed cameras, Lamps

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Proceedings Article | 20 October 2004 Paper

Overview: present status and future prospect of system and design in white LED lighting technologies

Tsunemasa Taguchi

Proceedings Volume 5530, (2004) https://doi.org/10.1117/12.567101

KEYWORDS: Light emitting diodes, LED lighting, Light sources and illumination, RGB color model, Near ultraviolet, Luminous efficacy, External quantum efficiency, Radium, Semiconductors, Luminescence

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Proceedings Article | 26 January 2004 Paper

High-output power near-ultraviolet and violet light-emitting diodes fabricated on patterned sapphire substrates using metalorganic vapor phase epitaxy

Kazuyuki Tadatomo, Hiroaki Okagawa, Youichiro Ohuchi, Takashi Tsunekawa, Hiromitsu Kudo, Yasuhide Sudo, Munehiro Kato, Tsunemasa Taguchi

Proceedings Volume 5187, (2004) https://doi.org/10.1117/12.513288

KEYWORDS: Gallium nitride, Light emitting diodes, External quantum efficiency, Sapphire, Near ultraviolet, Vapor phase epitaxy, Interfaces, Reactive ion etching, Indium gallium nitride, Electroluminescence

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Proceedings Article | 3 July 2003 Paper

Optical design of large-area GaN-based LEDs

Ruisheng Zheng, Tsunemasa Taguchi

Proceedings Volume 4996, (2003) https://doi.org/10.1117/12.476554

KEYWORDS: Light emitting diodes, Gallium nitride, Finite-difference time-domain method, Epoxies, Refractive index, Semiconductors, Metals, Mirrors, Reflection, Silicon carbide

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Proceedings Article | 3 July 2003 Paper

Theoretical and experimental luminous characteristics of white LEDs composed of multiphosphors and near-UV LED for lighting

Yuji Uchida, Tsunemasa Taguchi

Proceedings Volume 4996, (2003) https://doi.org/10.1117/12.476568

KEYWORDS: Light emitting diodes, Near ultraviolet, Luminous efficacy, Radium, Luminescence, Ultraviolet radiation, General lighting, Visible radiation, RGB color model, Distance measurement

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Proceedings Article | 26 November 2002 Paper

Growth of homoepitaxial GaN layers and GaN/AlGaN multiple quantum wells on GaN single-crystal substrates by molecular-beam epitaxy

Shuichi Kubo, Tomoyuki Tanabe, Masafumi Konishi, Shiro Iwata, Tsunekazu Saimei, Satoshi Kurai, Tsunemasa Taguchi, Keiji Kainosho, Akihito Yokohata

Proceedings Volume 4776, (2002) https://doi.org/10.1117/12.452580

KEYWORDS: Gallium nitride, Crystals, Aluminum, Gallium, Single crystal X-ray diffraction, Quantum wells, Epitaxy, Luminescence, Nitrogen, X-rays

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Proceedings Article | 5 December 2001 Paper

Japanese semiconductor lighting project based on ultraviolet LED and phosphor systems

Tsunemasa Taguchi

Proceedings Volume 4445, (2001) https://doi.org/10.1117/12.450032

KEYWORDS: Light emitting diodes, Ultraviolet radiation, LED lighting, Gallium nitride, Ultraviolet light emitting diodes, Crystals, Light sources and illumination, Radium, Sapphire, Semiconductors

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Proceedings Article | 14 May 2001 Paper

Application of white LED lighting to energy-saving-type street lamps

Tsunemasa Taguchi, Yuji Uchida, Tatsumi Setomoto, Katsuya Kobashi

Proceedings Volume 4278, (2001) https://doi.org/10.1117/12.426850

KEYWORDS: Light emitting diodes, LED lighting, Lamps, Light sources and illumination, Solar cells, Sensors, Light sources, Light, Photovoltaics, Control systems

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Proceedings Article | 11 July 2000 Paper

Radiative recombination mechanisms in InGaN/AlGaN single-quantum-well LED revealed by time-resolved photoluminescence spectra under external electric fields

Hiromitsu Kudo, Tomoyuki Tanabe, Hiroki Ishibashi, Ruisheng Zheng, Yoichi Yamada, Tsunemasa Taguchi

Proceedings Volume 4078, (2000) https://doi.org/10.1117/12.392133

KEYWORDS: Indium gallium nitride, Luminescence, Ultraviolet light emitting diodes, Light emitting diodes, Blue light emitting diodes, Excitons, Ultraviolet radiation, Picosecond phenomena, Ionization, Quantum wells

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Proceedings Article | 11 July 2000 Paper

Effect of pre-treatment of GaN substrate for homoepitaxial growth by rf MBE

Shuichi Kubo, Tomokazu Okazaki, Shigeki Manabe, Satoshi Kurai, Tsunemasa Taguchi

Proceedings Volume 4078, (2000) https://doi.org/10.1117/12.392111

KEYWORDS: Gallium nitride, Etching, Nitrogen, Annealing, Crystals, Gallium, Atmospheric plasma, Diffraction, Plasma, Sapphire

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Proceedings Article | 30 June 2000 Paper

Characteristics of high-efficiency InGaN-based white LED lighting

Yuji Uchida, Tatsumi Setomoto, Tsunemasa Taguchi, Yoshinori Nakagawa, Kazuto Miyazaki

Proceedings Volume 4079, (2000) https://doi.org/10.1117/12.389397

KEYWORDS: Light emitting diodes, LED lighting, Luminous efficacy, Light sources and illumination, LED displays, Electroluminescence, Blue light emitting diodes, Light, Indium gallium nitride, Lamps

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Proceedings Article | 30 June 2000 Paper

White illumination characteristics of ZnS-based phosphor materials excited by InGaN-based ultraviolet light-emitting diode

Kenji Murakami, Tsunemasa Taguchi, Masahiko Yoshino

Proceedings Volume 4079, (2000) https://doi.org/10.1117/12.389396

KEYWORDS: Light emitting diodes, Ultraviolet light emitting diodes, Luminescence, Ultraviolet radiation, Reflection, Radium, Blue light emitting diodes, Technetium, RGB color model, Lamps

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