Dr. Isao Ichimura Profile

Dr. Isao Ichimura

at Sony Corp

SPIE Involvement:

Author

Proceedings Article | 17 July 2007 Paper

New DPD tracking servo method by signal processing for high-density ROM discs

Junya Shiraishi, Tsutomu Maruyama, Yoshihiro Takemoto, Isao Ichimura, Shoei Kobayashi

Proceedings Volume 6620, 66200W (2007) https://doi.org/10.1117/12.738917

KEYWORDS: Servomechanisms, Signal processing, Signal detection, Optical tracking, Sensors, Clocks, Stereolithography, Detection and tracking algorithms, Photodetectors, Modulation transfer functions

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Proceedings Article | 22 June 2006 Paper

High-density multilayer optical disc storage

Isao Ichimura, Tsutomu Maruyama, Junya Shiraishi, Kiyoshi Osato

Proceedings Volume 6282, 628212 (2006) https://doi.org/10.1117/12.685229

KEYWORDS: Optical discs, Optical storage, Tolerancing, Signal processing, Signal to noise ratio, Reflectivity, Clocks, Multilayers, Data storage, Reliability

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Proceedings Article | 10 January 2002 Paper

On-groove phase-change optical recording for a capacity of 25 GB

Isao Ichimura, Shin Masuhara, Jun Nakano, Yutaka Kasami, Koichi Yasuda, Osamu Kawakubo, Kiyoshi Osato

Proceedings Volume 4342, (2002) https://doi.org/10.1117/12.453400

KEYWORDS: Optical recording, Signal processing, Deep ultraviolet, Objectives, Tolerancing, Indium gallium nitride, Signal to noise ratio, Amplifiers, Semiconductor lasers

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Proceedings Article | 18 September 2000 Paper

Near-field phase-change recording using a GaN laser diode

Koichiro Kishima, Isao Ichimura, Kenji Yamamoto, Kiyoshi Osato, Yuji Kuroda, Atsushi Iida, Kimihiro Saito

Proceedings Volume 4090, (2000) https://doi.org/10.1117/12.399331

KEYWORDS: Near field, Electrodes, Gallium nitride, Semiconductor lasers, Servomechanisms, Objectives, Near field optics, Modulation transfer functions, Polishing, Surface finishing

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Proceedings Article | 28 June 1999 Paper

Near-field phase-change optical recording over 1.2 numerical aperture

Koichiro Kishima, Isao Ichimura, Kenji Yamamoto, Kiyoshi Osato, Yuji Kuroda, Kimihiro Saito

Proceedings Volume 3864, 386435 (1999) https://doi.org/10.1117/12.997612

KEYWORDS: Near field, Relays, Servomechanisms, Actuators, Optical recording, Near field optics, Electrodes, Lenses, Objectives, Mirrors

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Proceedings Article | 28 June 1999 Paper

Optical disk recording using a GaN blue laser diode

Isao Ichimura, Fumisada Maeda, Kiyoshi Osato, Kenji Yamamoto, Yutaka Kasami

Proceedings Volume 3864, 386420 (1999) https://doi.org/10.1117/12.997611

KEYWORDS: Semiconductor lasers, Gallium nitride, Actuators, Servomechanisms, Light sources, Optical storage, Optical discs, Signal detection, Tolerancing, Video

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Proceedings Article | 23 October 1998 Paper

Rewritable optical disk system with over 10 GB of capacity

Kiyoshi Osato, Kenji Yamamoto, Isao Ichimura, Fumisada Maeda, Yutaka Kasami, Masahiro Yamada

Proceedings Volume 3401, (1998) https://doi.org/10.1117/12.327931

KEYWORDS: Tolerancing, Optical discs, Second-harmonic generation, Digital video discs, Video, Transmission electron microscopy, Modulators, Digital video recorders, Light sources, Wavefronts

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Proceedings Article | 8 September 1995 Paper

High-density optical disk system using a solid immersion lens

Isao Ichimura, Kiyoshi Osato, Fumisada Maeda, Hideo Owa, Hiroshi Ooki, Gordon Kino

Proceedings Volume 2514, (1995) https://doi.org/10.1117/12.218721

KEYWORDS: Objectives, Solids, Second-harmonic generation, Molybdenum, Refractive index, Adaptive optics, Optical storage, Glasses, Modulation transfer functions, Optical discs

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Proceedings Article | 23 March 1995 Paper

Solid immersion lens for optical storage

S. Hayashi, Gordon Kino, Isao Ichimura

Proceedings Volume 2412, (1995) https://doi.org/10.1117/12.205324

KEYWORDS: Objectives, Polarization, Solids, Point spread functions, Refractive index, Microscopes, Optical storage, Magnetic sensors, Confocal microscopy, Compact discs

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Showing 5 of 9 publications

SPIE Conference Volume | 9 September 2004

Optical Data Storage 2004

Conference Committee Involvement (3)

ISOM/ODS

13 July 2008 | Waikoloa, United States

Optical Data Storage Topical Meeting 2004

18 April 2004 | Monterey, California, United States

Optical Data Storage 2003

11 May 2003 | Vancouver, Canada

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