Sharp Kabushiki Kaisha Corporation

Rorze Corporation

Seiichi Fujii

Yoshio Katayama

Sadao Uchiyama

Hideo Yoshida

Shigeki Tsuji

Hitoshi Moori

Masanobu Katsuki

Hirofumi Hosokawa

Yoshiyuki Omi

Ryouichi Soejima

A robot simulation device is provided. It includes a virtual robot working environment in which a virtual robot has a task of transferring a virtual object from a start point to a goal point, the simulation device determining the path of travel. A task simulation is executed in response to the virtual robot working environment and the path of travel. The task simulation determines a robot activity region where the virtual robot can operate and an interference region where the virtual robot encounters obstacles. Thereafter the device creates a desired executed simulation in which the virtual robot can operate without encountering obstacles.

Robot simulation device, and robot simulation program

A disk recording/reproduction device according to the present invention includes: a recording medium including a disk and a protective case for the disk; loading mechanism for guiding the recording medium from a first position outside the disk recording/reproduction device in a first direction in a linear manner, then to a second position located inside the disk recording/reproduction device, and thereafter in a second direction perpendicular to the first direction to a third position, the first position allowing the recording medium to be taken out and the third position allowing information to be recorded on the recording medium; a pickup; a pickup driving mechanism for moving the pickup in parallel to a recording face of the disk; a magnetic head opposing the pickup so as to interpose the disk and moving in parallel to the disk integrally with the pickup; and head position switching mechanism for detaching the magnetic head from the disk and positioning the magnetic head in either a recordable position or a stand-by position. A position retention mechanism locates the recording medium in a fourth position between the second and third positions. The magnetic head moves to the recordable position when the recording medium is in the third position. The magnetic head and the pickup move between a position opposing the protective case and a retracted position away from the position opposing the protective case. When the recording medium is in the fourth position, the magnetic head and the pickup are moved from the position opposing the protective case to the retracted position and from the retracted position to the position opposing the protective case.

Disk recording/reproduction device of reduced thickness with driving

A magneto-optical recording and reproducing apparatus for recording a recording data on a magneto-optical disk through magnetic field modulation is provided with a magnetic head device for applying a recording magnetic field corresponding to a recording signal current onto the magneto-optical disk. The magnetic head means is composed of coil support means including a hollow tubular portion, coil means provided outside the hollow tubular portion of the coil support means, magnetic head means, provided within the hollow tubular portion of the coil support means so as to be capable of freely sliding, for generating the recording magnetic field by supplying the recording signal current into the coil means, and elastic support means for supporting the magnetic head means so as to place it in a stand-by position where the magnetic head means and the magneto-optical disk do not interfere with one another by a push-up force exerted on the magnetic head means in the direction moving away from the magneto-optical disk. The magnetic head means is moved toward the magneto-optical disk in a direction opposite to the push-up force exerted by the elastic support means so as to come in contact with the magneto-optical disk using an electromagnetic force generated by supplying the recording signal current into the coil means.

Magnetic head device with slidable and adjustable magnetic head

Growing community of inventors

Hiroshima, Japan

Seiichi Fujii