Sharp Kabushiki Kaisha Corporation

Tetsuyuki Takemoto

Masahiro Horii

Shoji Taniguchi

Toshihiro Yamanaka

Yoshinobu Hirayama

Masaki Kageyama

Masanori Ehara

Akio Horiguchi

A method of manufacturing a light guide plate includes steps of cutting a light guide plate base material with a frame-shaped die into a die-cut plateincluding side surfaces each having a rectangular shape and performing thermal-imprinting process. In thermal-imprinting process, a processing surfaceof a plate surface of a heated processing boardis pressed against one of the side surfacesof the die-cut plateto thermally imprint a pattern of the processing surfaceof the processing boardon the one of the side surfacesof the die-cut plate. The processing surfacehaving a shape that is recessed more at a portion thereof opposite a middle of a long dimension of the one of the side surfacesthan a portion thereof opposite ends of the long dimension of the one of the side surfacesis pressed against the side surface

Method of manufacturing light guide plate, lighting device, and display device

A magneto-optical disk device for receiving a magneto-optical disk housed in a cassette and for driving the magneto-optical disk by a disk drive motor to read/write the disk is disclosed. The device includes a movable cassette carrier having a top plate for receiving the cassette therein, a read/write head located under the cassette carrier, a magnetic field coil slidably mounted on the top plate above the read/write head to move in a direction parallel to the movement of the read/write head, a pole extending substantially perpendicular from the read/write head at a position offset from the cassette carrier, and an arm having one end slidably mounted on the pole and other end fixedly connected to the magnetic field coil. The arm is mounted to slide along the pole to move the magnetic field coil along a direction substantially perpendicular to the disk.

Magneto-optical disk device with movable coil

A linear motor is movably disposed in a disc unit internally provided with a cartidge holder for loading and ejecting a disc cartridge and is securely locked by a locking mechanism at the time of ejection of the cartridge. The locking mechanism comprises a first locking member extending downwards from the cartridge holder and a second locking member securely mounted on the linear motor. When the disc cartridge is ejected by the cartridge holder, the first locking member is brought into contact with the second locking member to move the linear motor toward a location at which the linear motor is securely locked.

Linear motor locking mechanism in a disc unit

Growing community of inventors

Nara, Japan

Tetsuyuki Takemoto