Title:
【発明の名称】磁気記憶装置
Document Type and Number:
Japanese Patent JP3166181
Kind Code:
B2
Abstract:
A magnetic recording data storage system includes a magnetic recording medium having pits formed therein, the pits defining recording tracks on the magnetic recording medium and being arranged in a staggered manner relative to respective center lines of the recording tracks, a magnetic head including an inductive element for recording data on the recording tracks and a magnetoresistive element for reproducing data from the recording tracks, one of (1) a unit for magnetically producing a signal from the pits, and (2) an optical unit for optically producing a signal from the pits, the optical unit including a laser for illuminating the pits, servo means for positioning the head on the recording tracks based on the signal produced from the pits, the servo means including a dual-stage actuator including a rough movement portion and a fine movement portion.
Inventors:
▲高▼野 公史
Akagi
Mikio Suzuki
Yoshifumi Matsuda
Takeshi Nakao
Yoshinori Miyamura
Fumio Kugiya
Masaaki Nimoto
Hideki Sawaguchi
Nobuyuki Inaba
Takayuki Munemoto
Kenji Mori
Hirotsugu Fukuoka
Atsushi Takagaki
Akagi
Mikio Suzuki
Yoshifumi Matsuda
Takeshi Nakao
Yoshinori Miyamura
Fumio Kugiya
Masaaki Nimoto
Hideki Sawaguchi
Nobuyuki Inaba
Takayuki Munemoto
Kenji Mori
Hirotsugu Fukuoka
Atsushi Takagaki
Application Number:
JP3400791A
Publication Date:
May 14, 2001
Filing Date:
February 28, 1991
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G11B5/02; G11B5/00; G11B5/39; G11B5/55; G11B5/596; G11B5/60; G11B5/65; G11B5/66; G11B5/74; G11B5/82; G11B13/04; G11B21/10; (IPC1-7): G11B5/02; G11B21/10
Domestic Patent References:
| JP386912A | ||||
| JP55157129A | ||||
| JP3181016A |
Attorney, Agent or Firm:
Yasuo Sakuta