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Featured researches published by Shingo Hamaguchi.


Optical Data Storage '91 | 1991

Clock generation circuit of a sampled servo optical disk drive

Yasuyuki Ozawa; Shingo Hamaguchi; Masaharu Moritsugu; Akio Futamata

The clock generation circuit we developed for a 5.25-in sampled servo format optical disk drive is linked to the spindle motor control system. In has fast pull-in characteristics and a highly accurate disk rotational control system without need for a special rotary encoder.


Archive | 2006

Thermally assisted magnetic recording method

Shingo Hamaguchi; Kazuyuki Ozaki


Archive | 1996

Tracking and focus control system for optical disk apparatus

Kyoko Miyabe; Koichi Tezuka; Shingo Hamaguchi


Archive | 1995

Optical head unit for an optical disk using a diffraction grating

Koichi Tezuka; Kyoko Miyabe; Shingo Hamaguchi


Archive | 1994

Track retrieval system for optical disk

Shingo Hamaguchi; Yasuyuki Ozawa


Archive | 1991

Tracking actuator of optical disk drive

Shingo Hamaguchi; Shinichi Otsuka; Yasuyuki Ozawa; 伸一 大塚; 靖之 小澤; 慎吾 濱口


Archive | 2012

DIAGNOSIS APPARATUS AND DIAGNOSIS METHOD

Yuzuru Yamakage; Shingo Hamaguchi; Kazuyuki Ozaki


Archive | 2002

Master medium for magnetic transfer, magnetic transferring and recording method, slave medium for magnetic recording, and method for producing a master medium for magnetic transfer

Shingo Hamaguchi; Sumio Kuroda; Kazuyuki Ozaki; Ken Tamanoi; Koji Matsumoto


Archive | 1995

Optical disk device having track jumping control

Shingo Hamaguchi; Eiji Yabuki


Archive | 2005

Collimator optical system and optical information storage device

Kazushi Uno; Shingo Hamaguchi

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