Kiyoshi Matsumoto
Hitachi
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Publication
Featured researches published by Kiyoshi Matsumoto.
Optical Data Storage '91 | 1991
Eiichi Seya; Kiyoshi Matsumoto; Hideki Nihei; Atsushi Ichikawa; Shigeo Moriyama; Shigeru Nakamura; Seiichi Mita
A 10-mm-thick head mechanism for a 30 GB, multi-head type stacked optical disk system has been developed. A pair of linear brushless motors are utilized as the coarse actuator, and a 2D motion lens actuator is utilized as the fine one. The average access time is 150 ms. The track following characteristics are tested. The tracking error is 0.03 micrometers in amplitude with a 3600 rpm, 254 mm diameter disk.
IEEE Transactions on Magnetics | 1991
Kiyoshi Matsumoto; Takeshi Maeda
An acoustooptic (A/O) deflector has been introduced to act as a multifunctional fine actuator. A three-dimensional spot wobbling method with A/O deflector has been proposed, and the detection characteristics of focusing and tracking error signals have been confirmed. A high-speed optical disk control system, together with good access performance, has been achieved. Due to this achievement, small, simple, and high-performance optical disk systems should be available in the future. >
Archive | 1994
Kiyoshi Matsumoto; Yuichi Yagawa; Kazuto Senda
Archive | 1992
Atsushi Saito; Takeshi Maeda; Takeshi Nakao; Kiyoshi Matsumoto; Hiroyuki Minemura; Tetsuya Fushimi
Archive | 1995
Hisataka Sugiyama; Takeshi Maeda; Kiyoshi Matsumoto; Motoyasu Terao; Shigenori Okamine; Tetsuya Nishida; Harukazu Miyamoto
Archive | 2001
Kiyoshi Matsumoto; Yuichi Yagawa; Kazuto Senda
Archive | 1991
Shigeru Nakamura; Eiichi Seya; Seiichi Mita; Masuo Kasai; Masahiro Ojima; Hiroshi Yasuoka; Motoyasu Terao; Yoshinori Miyamura; Takeshi Nakao; Kiyoshi Matsumoto; Yoshihiro Hamakawa
Archive | 1989
Kiyoshi Matsumoto; Takeshi Maeda; Masuo Kasai
Archive | 1996
Kiyoshi Matsumoto; Hiroyuki Tsuchinaga; Tsuyoshi Toda
Archive | 1995
Kyo Akagi; Yoshihiro Shiroishi; Reijiro Tsuchiya; Takehiko Hamaguchi; Masuo Umemoto; Mikio Suzuki; Takashi Kawabe; Katsuro Watanabe; Kiyoshi Matsumoto; Atsushi Saito; Kouichirou Wakabayashi; Yosuke Hamada
