Hitachi, Ltd.

Other

Kyuichiro Nagai

Tomomi Okamoto

Atsushi Inoue

Hiroaki Ono

Nobuo Masuoka

Hirofumi Taguchi

Kenji Ogiro

Ikuo Nishida

Nobuyuki Kaku

Toshimasa Kamisada

Tatsumi Nishijima

Hiromitsu Mori

Kouhei Takita

Ryuichiro Mizuno

Noriyuki Kumasaka

Yoshiaki Yamauchi

Katsutoshi Nii

Takashi Kouno

Takashi Takeuchi

Hikaru Mizutani

Kazuo Sakai

Shinobu Yoshida

Yasuhiro Nemoto

Katsuyuki Tanaka

Minoru Fujita

Yoshiyuki Tanaka

Katsuhiko Izumi

Toshiyasu Sawano

Shyunji Furukawa

Morio Umemura

The invention provides an optical disc apparatus which restricts an operation sound generated from an objective lens driving portion of an optical pickup and has a reduce sound, in an optical disc apparatus, in particular, an optical disc apparatus installing a microphone for recording an external voice therein. Coils (), a magnet () and opposing surfaces of a yoke () are respectively arranged at substantially point symmetrical positions with respect to an optical axis () of an objective lens () in a state in which no electric current is applied, the yoke () and a unit base () are connected via a spring member (), and the unit base () is mounted to a casing (). In this case, the spring member () is connected at a position () forward apart from the objective lens () with respect to the yoke (), and is formed so as to have at least a deformation freedom in a direction of the optical axis of the objective lens (). The casing () is made in a closed structure surrounding a space in which the unit base (), a lens holder (), the yoke () and the magnet () are arranged, except a surface opposing to a disc-like recording medium ().

Optical pickup and optical disc apparatus provided with the same

A disk case in which the downsizing of a disk is enabled, maintaining the ease of handling in the same manner as the current 8-cm disk cartridge, and that can be mounted on the current 12-cm drive by using a simplified adapter is provided. The shape of the disk case that involves an 8-cm disk is not a square but almost a circle. Further, the opening width of the disk case is 39 mm or more. An arm for ejecting the disk is arranged at the disk case opening side.

Disk case

A disk cartridge incorporating a disk-shaped recording medium and having an opening portion for enabling a recording and/or reproducing operation by a recording and/or reproducing device having a disk cartridge main body, a disk holder detachably mountable to the disk cartridge main body, and a reverse insertion preventing structure for preventing the disk holder having a surface and a rear face from being inserted turning inside out into the disk cartridge main body when the disk holder is mounted to the disk cartridge main body.

Disk cartridge

A disc cartridge having a single case member which covers most of the base surface of the disc cartridge and is disposed on the recording side of a recording medium is described. An access window for a recording/playback device to access the recording medium is opened and closed by a shutter.

Disc cartridge for one-sided disc-shaped recordable medium

A disk is moved between disk cartridges without being in touch with the disk. Therefore, movement of the disk between the disk cartridges is carried out via a disk holder. Further, when the disk is moved between the disk cartridges, disk information of the cartridge is also moved simultaneously. Accordingly, the disk information held by the disk cartridge is provided at a disk holder portion and the disk information can be read by other disk device. Further, the disk holder is provided with a region representing information of the disk. When it is made to be a label region, in moving the disk between the disk cartridges, also the disk information held by the disk holder can simultaneously be moved. Further, even when the disk cartridge incorporates the disk, the content of the disk can easily be recognized via the disk holder. Further, a user can arbitrarily write or erase content of the disk to or from the label region, the disk is recognized easily and easiness of use is considerably promoted.

Disk cartridge with a holder having disk information on it

A disk cartridge incorporating a disk-shaped recording medium and having an opening portion for enabling a recording and/or reproducing operation by a recording and/or reproducing device includes a disk cartridge main body and a disk holder which is detachably mountable to the disk cartridge main body. The disk holder is mountable to the disk cartridge main body along with the disk-shaped recording medium, the disk holder is constituted by a structure which is detachable to outside of the disk cartridge main body along with the disk-shaped recording medium, and the disk holder includes a pair of resilient and deformable disk holding members for holding an outer periphery of the disk-shaped recording medium.

A disc cartridge for receiving a disc-like recording medium therewithin, including a disc insertion and removal port provided in the disc cartridge and being capable of inserting and removing the recording medium, the disc cartridge having an insertion and removal port opening and closing member. A disc insertion and removal port being closed by the insertion and removal port opening and closing member when the recording medium is within said disc cartridge. The recording medium being capable of being taken out from the cartridge together with the insertion and removal port opening and closing member when the recording medium is taken out and the disc cartridge having an insertion and removal history recognizing portion of said recording medium.

A disk cartridge main body configured to fit into a disk holder of a disk cartridge having another disk cartridge main body for incorporating a disk-shaped recording medium. The another disk cartridge main body has an opening portion for enabling a recording and/or reproducing operation by a recording and/or reproducing device. The disk holder is detachably mountable to the another disk cartridge main body. The opening portion is provided in the another disk cartridge main body and the opening portion is closed by a shutter arranged at the another disk cartridge main body such that the disk-shaped recording medium is shielded from outside by the shutter when the disk cartridge is outside of the recording and/or reproducing device.

A disk device for recording and reproducing information on a disk includes a spindle motor for rotating the disk, a head for reading and writing information signals from and on the disk, a feed mechanism for moving the head radially of the disk, a mechanism chassis having the spindle motor, head and feed mechanism thereon and a cartridge loading mechanism. A casing is provided for mounting the mechanism chassis through vibration insulating members. When a cartridge is to be loaded into a predetermined position, the cartridge is moved toward the mechanism chassis while the mechanism chassis is moved toward the cartridge, thereby providing vibration-insulating spaces.

Disk device with eliminatable gaps

A disk cartridge incorporating a disk-shaped recording medium and having an opening portion for enabling recording and/or reproduction by a recording and/or reproducing device includes a disk cartridge main body, and a disk holder which is detachably mountable to the disk cartridge main body. The opening portion of the disk cartridge is provided in the disk cartridge main body and is closed by a shutter arranged at the disk cartridge main body. The disk holder includes a disk holding member holding the recording medium so that when the disk holder is mounted to the disk cartridge main body, the disk holding member releases holding of the recording medium. When the disk holder is detached from the disk cartridge main body, the disk holding member holds the disk-shaped recording medium and is detached from the disk cartridge main body along with the disk-shaped recording medium.

A disc cartridge for receiving a disc-like recording medium therewithin which recording medium is capable of being inserted and removed from the disc cartridge. The disc cartridge includes an insertion and removal port opening and closing member, and the disc insertion and removal port opening and closing member is moved from the disc cartridge when taking out the recording medium. The disc cartridge has a locking member for locking the insertion and removal port opening and closing member. At least a part of a locking cancellation preventing member which prevents the locking member from moving for canceling the locking is arranged on a moving path of the locking member so as to cancel the locking. Further, the locking cancellation preventing member is a portion for recognizing a history of insertion and removal of the recording medium.

Disc cartridge

A disk cartridge incorporating a disk-shaped recording medium. A disk holder is arranged at the disk cartridge and is constituted by a structure capable of detaching from a disk cartridge main body. The disk holder holds information in respect of the disk-shaped recording medium and the disk cartridge main body includes an information holding portion holding the information in respect of the disk-shaped recording medium. Positions of an information holding portion holding the information of the disk-shaped recording medium of the disk holder and the information holding portion of the disk cartridge main body differ from each other when the disk holder is attached to the disk cartridge main body. The disk cartridge main body includes a transmitter for transmitting the information held by the disk holder to the information holding portion of the disk cartridge main body.

Disk cartridge with holder and disk information

A disc cartridge for receiving a disc-shaped recording medium therewithin which is capable of being inserted and removed from the disc cartridge. The disc cartridge has an insertion and removal port opening and closing member which is moved from the disc cartridge when taking out the recording medium. The insertion and removal port opening and closing member holds the disc-shaped recording medium and can take out the disc together with the insertion and removal port opening and closing member from a disc cartridge main body when taking out the insertion and removal port opening and closing member from the disc cartridge. The disc cartridge has a locking member and a locking cancellation preventing member which prevents said locking member from moving for canceling the locking and which serves as a portion for recognizing a history of insertion and removal of the recording medium.

A disc cartridge for receiving a disc-like recording medium therewithin which recording medium is capable of being inserted and removed from the disc cartridge. The disc cartridge includes an insertion and removal port opening and closing member which disc insertion and removal port opening and closing member is moved from the disc cartridge when taking out the recording medium. The disc cartridge has a locking member for locking the insertion and removal port opening and closing member. At least a part of a locking cancellation preventing member which prevents the locking member from moving for canceling the locking is arranged on a moving path of the locking member so as to cancel the locking.

Growing community of inventors

Fujisawa, Japan

Kyuichiro Nagai