Dr. Kenkichi Tanioka Profile

Dr. Kenkichi Tanioka

Research Professor

SPIE Involvement:

Conference Program Committee | Author

Publications (29)

SPIE Journal Paper | 13 January 2024

Improved temporal performance and optical quantum efficiency of avalanche amorphous selenium for low dose medical imaging

Corey Orlik, Sébastien Léveillé, Salman M. Arnab, Adrian F. Howansky, Jann Stavro, Scott Dow, Safa Kasap, Kenkichi Tanioka, Amir H. Goldan, Wei Zhao

JMI, Vol. 11, Issue 01, 013502, (January 2024) https://doi.org/10.1117/12.10.1117/1.JMI.11.1.013502

KEYWORDS: Tellurium, Selenium, Quantum efficiency, Quantum optics, Electrodes, Dark current, Quantum measurement, Quantum optics experiments, Prototyping, Optical testing

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Proceedings Article | 4 April 2022 Poster + Paper

Poster + Paper

Improved temporal performance and optical quantum efficiency of avalanche amorphous selenium for low dose medical imaging

Corey Orlik, Sébastien Levéillé, Salman Arnab, Adrian Howansky, Jann Stavro, Scott Dow, Safa Kasap, Kenkichi Tanioka, Amir Goldan, Wei Zhao

Proceedings Volume 12031, 120314L (2022) https://doi.org/10.1117/12.2611820

KEYWORDS: Composites, Tellurium, Scintillators, Prototyping, Green light emitting diodes, Selenium, Oxides, Quantum optics, Quantum efficiency, Photons

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Proceedings Article | 4 March 2022 Presentation + Paper

Presentation + Paper

A highly sensitive pickup tube using avalanche multiplication in an amorphous selenium photoconductive target and its applications

Kenkichi Tanioka

Proceedings Volume 12025, 1202506 (2022) https://doi.org/10.1117/12.2614607

KEYWORDS: Cameras, Image sensors, Electrodes, Solid state electronics, Selenium, Capacitance, X-rays, Photoresistors, Prototyping, CCD cameras

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SPIE Journal Paper | 11 July 2018 Open Access

Open Access

55-in. 8K4K IPS-LCDs with wide viewing angle, high frame frequency, wide color gamut, and stereoscopic

Ryutaro Oke, Junichi Maruyama, Tomohiro Murakoso, Masahiro Ishii, Ikuo Hiyama, Yoshihisa Kato, Hiromasa Yamashita, Kenkichi Tanioka, Toshio Chiba

OE, Vol. 57, Issue 07, 075102, (July 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.7.075102

KEYWORDS: LCDs, Semiconductor lasers, Surgery, 3D displays, Avalanche photodetectors, Transmittance, Optical engineering, Light sources, Amorphous silicon, Image quality

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Proceedings Article | 19 February 2018 Presentation + Paper

Presentation + Paper

55-inch 8K4K IPS-LCDs with high frame frequency, wide color gamut, and stereovision

Junichi Maruyama, Ryutaro Oke, Tomohiro Murakoso, Masahiro Ishii, Ikuo Hiyama, Yoshihisa Kato, Hiromasa Yamashita, Kenkichi Tanioka, Toshio Chiba

Proceedings Volume 10557, 105570S (2018) https://doi.org/10.1117/12.2299629

KEYWORDS: LCDs, Semiconductor lasers, Surgery, Transmittance, Light sources, 3D displays, Liquid crystals, Optical filters, RGB color model

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Proceedings Article | 19 February 2018 Presentation + Paper

Presentation + Paper

A historical game-changer: the world's smallest 8K UHD endoscope: current state of the art

Hiromasa Yamashita, Kenkichi Tanioka, Toshio Chiba

Proceedings Volume 10557, 105570A (2018) https://doi.org/10.1117/12.2297620

KEYWORDS: Endoscopes, Endoscopy, Surgery, Cameras, Imaging systems, Laparoscopy, Image resolution

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Proceedings Article | 19 February 2018 Presentation + Paper

Presentation + Paper

8K super high-vision technology and its medical application

Kenkichi Tanioka

Proceedings Volume 10557, 1055708 (2018) https://doi.org/10.1117/12.2297702

KEYWORDS: Cameras, Surgery, Endoscopes, Endoscopy, Televisions, Imaging systems, Blood vessels, Image sensors, Medical research, Video

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Proceedings Article | 22 March 2016 Paper

Paper

Solid-state flat panel imager with avalanche amorphous selenium

James Scheuermann, Adrian Howansky, Amir Goldan, Olivier Tousignant, Sébastien Levéille, K. Tanioka, Wei Zhao

Proceedings Volume 9783, 978317 (2016) https://doi.org/10.1117/12.2217002

KEYWORDS: Solid state electronics, Sensors, Imaging systems, Selenium, Prototyping, X-rays, X-ray imaging, Thin films, Avalanche photodetectors, Scintillators, X-ray detectors, Tin, X-ray optics

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Proceedings Article | 19 March 2014 Paper

Paper

Investigation of spatial resolution and temporal performance of SAPHIRE (scintillator avalanche photoconductor with high resolution emitter readout) with integrated electrostatic focusing

David Scaduto, Anthony Lubinsky, John Rowlands, Hidenori Kenmotsu, Norihito Nishimoto, Takeshi Nishino, Kenkichi Tanioka, Wei Zhao

Proceedings Volume 9033, 90333S (2014) https://doi.org/10.1117/12.2043187

KEYWORDS: Sensors, Spatial resolution, Modulation transfer functions, Electrodes, Finite element methods, X-rays, Scintillators, Photoresistors, Imaging systems, X-ray imaging

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Proceedings Article | 26 January 2010 Paper

Paper

Development of FOP-HARP imaging device

Kazunori Miyakawa, Yuji Ohkawa, Tomoki Matsubara, Kenji Kikuchi, Siro Suzuki, Kenkichi Tanioka, Misao Kubota, Norifumi Egami, Takuji Atsumi, Shonosuke Matsushita, Taisuke Konishi, Yuzuru Sakakibara, Kazuyuki Hyodo, Yoshimasa Katori, Yoshiaki Okamoto

Proceedings Volume 7536, 753604 (2010) https://doi.org/10.1117/12.838424

KEYWORDS: Cameras, Glasses, Synchrotron radiation, Polishing, Near infrared, Imaging systems, Prototyping, Surface finishing, Image intensifiers, X-rays

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Proceedings Article | 18 March 2008 Paper

Paper

An indirect flat-panel detector with avalanche gain for low dose x-ray imaging: SAPHIRE (scintillator avalanche photoconductor with high resolution emitter readout)

Wei Zhao, Dan Li, J. Rowlands, N. Egami, Y. Takiguchi, M. Nanba, Y. Honda, Y. Ohkawa, M. Kubota, K. Tanioka, K. Suzuki, T. Kawai

Proceedings Volume 6913, 69130M (2008) https://doi.org/10.1117/12.772774

KEYWORDS: Finite element methods, X-rays, X-ray imaging, Image sensors, Sensors, Modulation transfer functions, Electrodes, Electron beams, Photoresistors, Scintillators

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Proceedings Article | 22 February 2008 Paper

Paper

Improvement in the light sensitivity of the ultrahigh-speed high-sensitivity CCD with a microlens array

T, Hayashida, J. Yonai, K. Kitamura, T. Arai, T. Kurita, K. Tanioka, H. Maruyama, T. Goji Etoh, S. Kitagawa, K. Hatade, T. Yamaguchi, H. Takeuchi, K. Iida

Proceedings Volume 6890, 68900M (2008) https://doi.org/10.1117/12.762632

KEYWORDS: Charge-coupled devices, Microlens array, CCD cameras, Microlens, Photodiodes, Cameras, CCD image sensors, Manufacturing, Glasses, Video

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Proceedings Article | 21 February 2007 Paper

Paper

Improvement in photoelectric conversion efficiency of red light in HARP film

Tomoki Matsubara, Yuji Ohkawa, Kazunori Miyakawa, Shirou Suzuki, Misao Kubota, Norifumi Egami, Kenkichi Tanioka, Kouichi Ogusu, Akira Kobayashi, Tadaaki Hirai, Toshiaki Kawai

Proceedings Volume 6501, 650108 (2007) https://doi.org/10.1117/12.703066

KEYWORDS: Tellurium, Cameras, Signal to noise ratio, Electrons, Reliability, Interference (communication), Image enhancement, Color reproduction, Electrodes, Absorption

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Proceedings Article | 11 January 2007 Paper

Paper

Ultrahigh-speed, high-sensitivity color camera with 300,000-pixel single CCD

K. Kitamura, T. Arai, J. Yonai, T. Hayashida, H. Ohtake, T. Kurita, K. Tanioka, H. Maruyama, J. Namiki, T. Yanagi, T. Yoshida, H. van Kuijk, Jan Bosiers, T. Etoh

Proceedings Volume 6279, 62791L (2007) https://doi.org/10.1117/12.725213

KEYWORDS: Cameras, Charge-coupled devices, CCD cameras, Signal processing, Digital signal processing, Video, Field programmable gate arrays, Image processing, Photodiodes, Eye

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Proceedings Article | 23 February 2006 Paper

Paper

Development of a 300,000-pixel ultrahigh-speed high-sensitivity CCD

H. Ohtake, T. Hayashida, K. Kitamura, T. Arai, J. Yonai, K. Tanioka, H. Maruyama, T. Goji Etoh, D. Poggemann, A. Ruckelshausen, H. van Kuijk, Jan Bosiers

Proceedings Volume 6119, 61190E (2006) https://doi.org/10.1117/12.645371

KEYWORDS: Charge-coupled devices, CCD cameras, Cameras, Photodiodes, High speed cameras, Semiconducting wafers, Diamond, Video, Image resolution, Photomicroscopy

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Proceedings Article | 20 April 2005 Paper

Paper

Indirect flat-panel detector with avalanche gain: design and operation of the avalanche photoconductor

Wei Zhao, Dan Li, Alla Reznik, Brian Lui, D. Hunt, Kenkichi Tanioka, J. Rowlands

Proceedings Volume 5745, (2005) https://doi.org/10.1117/12.597295

KEYWORDS: Selenium, Sensors, X-rays, Quantum efficiency, X-ray imaging, Fluoroscopy, Photons, X-ray detectors, Photoresistors, Radiography

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Proceedings Article | 17 March 2005 Paper

Paper

An image sensor of 1,000,000 fps, 300,000 pixels, and 144 consecutive frames

Takeharu Etoh, Yuya Hatsuki, Tomoo Okinaka, Hiroshi Ohtake, Hirotaka Maruyama, Tetsuya Hayashida, Masato Yamada, Kazuya Kitamura, Toshiki Arai, Kenkichi Tanioka, Dirk Poggemann, Arno Ruckelshausen, Harry van Kuijk, Jan Bosiers, Albert Theuwissen

Proceedings Volume 5580, (2005) https://doi.org/10.1117/12.566156

KEYWORDS: Charge-coupled devices, Image sensors, Sensors, Photodiodes, Cameras, Image storage, Electrons, Video, CCD image sensors, Electrodes

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Proceedings Article | 17 March 2005 Paper

Paper

Color video camera capable of 1,000,000 fps with triple ultrahigh-speed image sensors

Hirotaka Maruyama, Hiroshi Ohtake, Tetsuya Hayashida, Masato Yamada, Kazuya Kitamura, Toshiki Arai, Kenkichi Tanioka, Takeharu Etoh, Jun Namiki, Tetsuo Yoshida, Hiromasa Maruno, Yasushi Kondo, Takao Ozaki, Shigehiro Kanayama

Proceedings Volume 5580, (2005) https://doi.org/10.1117/12.567322

KEYWORDS: Cameras, Charge-coupled devices, Video, Image sensors, Photodiodes, CCD cameras, Head, Image processing, Light sources and illumination, High speed cameras

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Proceedings Article | 7 March 2005 Paper

Paper

Ultrahigh-sensitivity HDTV new super-HARP camera

Kazunori Miyakawa, Yuji Ohkawa, Tomoki Matsubara, Tamotsu Takahata, Shiro Suzuki, Misao Kubota, Norifumi Egami, Kenkichi Tanioka, Kouichi Ogusu, Akira Kobayashi, Tadaaki Hirai, Toshiaki Kawai, Masanori Hombo, Tetsuo Yoshida

Proceedings Volume 5677, (2005) https://doi.org/10.1117/12.585434

KEYWORDS: Cameras, Surgery, CCD cameras, Resistance, Reliability, Medicine, Temperature metrology, Video, Arsenic, Digital signal processing

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Proceedings Article | 6 May 2004 Paper

Paper

Indirect flat-panel detector with avalanche gain

Wei Zhao, Dylan Hunt, Kenkichi Tanioka, John Rowlands

Proceedings Volume 5368, (2004) https://doi.org/10.1117/12.536863

KEYWORDS: Sensors, X-rays, Selenium, Imaging systems, X-ray imaging, Modulation transfer functions, Photoresistors, Systems modeling, Electrodes, Quantum efficiency

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Proceedings Article | 8 April 2003 Paper

Paper

Development of an imaging hyperspectral camera using the ultraviolet and visible wavelength AOTF

Hirohisa Kurosaki, Hirokimi Shingu, Shigeharu Enkyo, Takao Suzuki, Kenkichi Tanioka, Yoshiyasu Takefuji

Proceedings Volume 4881, (2003) https://doi.org/10.1117/12.462614

KEYWORDS: Ultraviolet radiation, Cameras, Visible radiation, Spectroscopes, Spectral resolution, Objectives, Imaging systems, Crystals, Hyperspectral imaging, Imaging devices

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Proceedings Article | 24 April 2002 Paper

Paper

128x96 pixel field emitter-array image sensor with HARP target

Toshio Yamagishi, Masakazu Nanba, Katsunori Osada, Yoshiro Takiguchi, Saburo Okazaki, Norifumi Egami, Kenkichi Tanioka, Mitsuru Tanaka, Shigeo Itoh

Proceedings Volume 4669, (2002) https://doi.org/10.1117/12.463449

KEYWORDS: Finite element methods, Image sensors, Prototyping, Electrodes, Packaging, Glasses, Electron beams, Cameras, Image segmentation, Image resolution

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Proceedings Article | 15 May 2001 Paper

Paper

Improvement of the quantum efficiency of the new super-HARP image sensor

Yuji Ohkawa, Kazunori Miyakawa, Shiro Suzuki, Tamotsu Takahata, Nobuo Saito, Norifumi Egami, Kenkichi Tanioka, Kouichi Ogusu, Akira Kobayashi, Tadaaki Hirai

Proceedings Volume 4306, (2001) https://doi.org/10.1117/12.426954

KEYWORDS: Quantum efficiency, Selenium, Image sensors, Tellurium, Sensors, Signal to noise ratio, Doping, Cameras, Electrodes, Photoresistors

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Proceedings Article | 27 April 1999 Paper

Paper

Beam characteristics and a new operation method of a HARP field-emitter image sensor

Masakazu Nanba, Toshio Yamagishi, Saburo Okazaki, Kenkichi Tanioka, Katsumi Takayama, Mitsuru Tanaka, Shigeo Itoh

Proceedings Volume 3649, (1999) https://doi.org/10.1117/12.347085

KEYWORDS: Finite element methods, Image segmentation, Electrodes, Image sensors, Electron beams, Image resolution, Sensors, Autoregressive models, Cameras, Charge-coupled devices

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Proceedings Article | 25 April 1997 Paper

Paper

First study of a flat vacuum image sensor with a field-emitter array

Toshio Yamagishi, Masakazu Nanba, Saburo Okazaki, Kenkichi Tanioka, Fumio Sato, Norifumi Egami

Proceedings Volume 3019, (1997) https://doi.org/10.1117/12.275169

KEYWORDS: Finite element methods, Image sensors, Electrodes, Cameras, CCD image sensors, Image resolution, Charge-coupled devices, Solid state electronics, Electron beams, Iron

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Proceedings Article | 25 March 1996 Paper

Paper

Ultrahigh-sensitivity new super-HARP camera

Misao Kubota, Tsutomu Kato, Shiro Suzuki, Hirotaka Maruyama, Kenkichi Tanioka, Kenji Sameshima, Tatsuo Makishima, Kazutaka Tsuji, Tadaaki Hirai

Proceedings Volume 2654, (1996) https://doi.org/10.1117/12.236114

KEYWORDS: Cameras, Electromagnetism, CCD cameras, Selenium, Light sources and illumination, Electrodes, Amplifiers, Televisions, Arsenic, Absorption

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Proceedings Article | 14 March 1995 Paper

Paper

Super-high-sensitive camera tube for HDTV hand-held cameras

Masakazu Nanba, Yoshiro Takiguchi, Toshio Yamagishi, Misao Kubota, Saburo Okazaki, Tsutomu Kato, Kenkichi Tanioka, Tadaaki Hirai, Yukio Takasaki

Proceedings Volume 2416, (1995) https://doi.org/10.1117/12.204831

KEYWORDS: Cameras, Electrodes, Electron beams, Prototyping, Imaging systems, Photoresistors, Laminated object manufacturing, Solid state electronics, Imaging devices, Image resolution

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Proceedings Article | 9 November 1994 Paper

Paper

New ultrasensitive pickup device for deep-sea robots: underwater super-HARP color TV camera

Hirotaka Maruyama, Kenkichi Tanioka, Tetsuo Uchida

Proceedings Volume 2247, (1994) https://doi.org/10.1117/12.193942

KEYWORDS: Cameras, Robots, Sensors, Light scattering, Light wave propagation, CCD cameras, Signal attenuation, Information visualization, Magnetism, Scattering

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Proceedings Article | 29 December 1993 Paper

Paper

One-inch all-electrostatic super-HARP tube and camera for HDTV: a new possibility for very dark images with superfine resolution

Mitsuhiro Kurashige, Kenkichi Tanioka, Masaharu Ooka, Tadaaki Hirai

Proceedings Volume 1987, (1993) https://doi.org/10.1117/12.165178

KEYWORDS: Cameras, Image resolution

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Showing 5 of 29 publications

Conference Committee Involvement (8)

Ultra-High-Definition Imaging Systems VIII

25 January 2025 | San Francisco, California, United States

Ultra-High-Definition Imaging Systems VII

29 January 2024 | San Francisco, California, United States

Ultra-High-Definition Imaging Systems VI

1 February 2023 | San Francisco, California, United States

Ultra-High-Definition Imaging Systems V

21 February 2022 | San Francisco, California, United States

Ultra-High-Definition Imaging Systems IV

6 March 2021 | Online Only, California, United States

Showing 5 of 8 Conference Committees

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