Hitachi, Ltd.

Toshiaki Kojima

Naoki Kodama

Fumio Kugiya

Kazuo Sakai

Kazuo Nakagoshi

Masahiko Sega

Takuji Ogawa

Masao Iwakura

Tomio Suzuki

Yasuhiro Matsuda

Nobuyuki Okunaga

Tatsuya Ishigaki

Shigeyuki Hanazawa

Chuma Akira

When supporting an HDA including an H/DA and an electronic control circuit board for controlling the same in a fixed frame (drive bay) of upper level apparatus by means of elastic or &ldquo;soft&rdquo; fixation, counterforce of an FPC cable gives it bad influence. When rigidly securing the HDA in a translational motion direction while attaining soft fixation in a direction of rotation, the HDA is rotatably supported with its center of gravity being as the center of rotation in a soft secure/support mechanism as taught from Published Japanese Patent Application No. 8-161880 (JP-A-8161880) for example; however, in the case of employing one of commercially available general purpose HDAs, this is disposed so that a bent or curved portion of its cable is identical in position to the rotation center or placed at a nearby location of the gravity center to thereby preclude the stiffness of an FPC cable hardly affects such rotatable support mechanism. This makes it possible to minimize creation of a torque posing a bar to free rotation of the HDA, which in turn enables mounting of the general purpose HDA thereby permitting wide spread of soft securing techniques. It is possible to facilitate popularization of a scheme for mounting a magnetic disk drive into portable or mobile equipment.

Magnetic disk drive with unique cable wiring scheme and electronic device using the same

A magnetic disk drive has a housing for a 3.5 inch form factor and disk media of a diameter for a 2.5 inch form factor. The smaller disk media rotate at a high speed while consuming low electric lower and generating less heat while providing for quick access speeds. Usually, when the magnetic disk media are rotated at a higher speed, the electric power consumption and heat generation are increased because of the load increase. This problem is avoided with the use of cooling fins placed about the periphery of the disk media. Further, the smaller size disk media enable a decrease in torque loss during on-load rotation with the media, and a decrease of electric current to the spindle motor during rotation.

Disc drive having 3.5 inch form factor housing and 2.5 inch form factor disk media

Growing community of inventors

Odawara, Japan

Toshiaki Kojima