Hitachi, Ltd.

Manabu Ikeda

Seii Miyakawa

Kazunori Iijima

Takao Terayama

Toshijiro Ohashi

Minoru Iwata

Mitsuharu Hayakawa

Syoji Arimoto

Takeshi Matsui

Shin Hashizume

Tsuneo Ogawa

A designed object workability evaluating system for evaluating quantitatively at a stage of designing an article whether a structure of the article as designed can be realized with work easy to do in a manufacturing stage for thereby selectively determining a best structure from a plurality of design plans through comparative evaluation thereof. A server machine section of the system includes an evaluation-destined element estimating module for estimating the evaluation-destined elements to be performed on parts constituting an article given by a design plan subjected to evaluation, a part workability evaluation module for evaluating easiness of works to be performed on the parts, an article workability evaluation module for evaluating easiness of works involved in realizing the article, and a best design plan selection/determination module for selectively determining a best structure on the basis of comparative evaluation of a plurality of design plans.

Automatic manufacturing evaluation method and system

A guide roller of a tape traveling system of a video tape recorder and the like for changing the direction of travel of a magnetic tape and regulating the heightwise position of the tape during its travel including a roller body of a diameter not constant but smoothly varying axially thereof for exerting on the traveling tape a force tending to shift the tape axially. The guide roller has a flange at the top and the bottom of the roller body having a tape guide surface for contacting the edge of the tape which is not perpendicular to the axis of the roller body but convex as viewed from the respective end of the roller body, to prevent the edge of the tape from striking the edges of the flanges. The roller body may be conical at its outer peripheral surface and at the tape guide surface of each flange.

Tape guide of magnetic recording and reproducing apparatus

A magnetic-tape running system for a video tape recorder having inclined pins and/or guide rollers having distant flanges. The pins and the guide rollers are inclined at suitable angles in the front and back directions and left and right directions so that the tape is guided only at its lower edge in such a manner that the tape runs stably along the cylinder lead at a constant contact pressure.

Magnetic tape running system

Growing community of inventors

Yokohama, Japan

Manabu Ikeda