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Dive into the research topics where Masaharu Imura is active.

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Featured researches published by Masaharu Imura.


Japanese Journal of Applied Physics | 1987

Magneto-Optic Disk Drive of High Speed Track Accessability

Hiromichi Ishibashi; Ryosuke Shimizu; Masaharu Imura; Makoto Kuwamoto; Hajime Yamamoto; Shinichi Tanaka; Takeshi Shimamoto

This paper describes 5 1/4-in. high track-access performance magneto-optic disk drive. The drive employs a split optical system with a swing-arm actuator, the inertia of which is 160 g cm2(equivalent to a linear actuator of 10 g weight). An avarage seek time was estimated less than 35ms in the absence of latency. It is noticeable that both its mechanism and control systems are very simple.


Archive | 2001

Disk reproducing device, a disk reproducing method, a disk rotation control method, and a regenerative clock signal generating device

Toshikazu Koudo; Masaharu Imura; Yoshiki Kuno; Yasuhisa Mashiko; Hidefumi Ishibashi


Archive | 2001

Stepping motor control method and disk drive apparatus

Takanori Okada; Shuichi Yoshida; Masaharu Imura; Kiyoshi Masaki; Kazuhiro Mihara; Tsutomu Kai; Noritaka Akagi; Masanori Harui; Kazuhiko Kouno


Archive | 1996

Device end method for reproducing data from disk, method for controlling rotation of disk, and reproduction clock generating device

Toshikazu Koudo; Masaharu Imura; Yoshiki Kuno; Yasuhisa Mashiko; Hidefumi Ishibashi


Archive | 2004

Stepping motor controlling method and disk apparatus

Takanori Okada; Shuichi Yoshida; Masaharu Imura; Kiyoshi Masaki; Kazuhiro Mihara; Tsutomu Kai; Noritaka Akagi


Archive | 1985

Retardation compensating light beam guiding system in an optical storage medium drive apparatus

Hiromichi Ishibashi; Masaharu Imura


Archive | 2006

OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE AND RECORDING LIGHT INTENSITY LEARNING METHOD

Masaharu Imura; Shuichi Tasaka


Archive | 1998

Optical-information-record reproducing device

修一 ▲よし▼田; Noritaka Akagi; Masaharu Imura; Tsutomu Kai; Kiyoshi Masaki; Kazuhiro Mihara; Takafumi Okada; Shiyuuichi Yoshida; 和博 三原; 正春 井村; 孝文 岡田; 清 正木; 勤 甲斐; 規孝 赤木


Archive | 1985

Optical storage medium drive apparatus

Hiromichi Ishibashi; Masaharu Imura


Archive | 2011

INFORMATION RECORDING/REPRODUCTION DEVICE AND IMAGE FORMING METHOD

Masaharu Imura; Kazuhiro Murakami

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