Sharp Kabushiki Kaisha Corporation

Haruhiko Murakami

Tsuyoshi Matsumoto

Junzo Kashihara

Hiroyuki Iida

Masaru Kakumae

Katsumi Shimizu

Naoki Nishi

Toshiaki Hosono

Through stroke control whereby the stroke of a piston is detected and controlled to be equal to a target stroke, the piston is prevented from colliding with a displacer, and the refrigerating performance of a Stirling refrigerator is enhanced. Different target strokes corresponding to different operation conditions of the Stirling refrigerator are stored in a storage portion in a control box, so that a linear motor can be driven with a target stroke that suits the current operation condition. Thus, the piston is prevented from colliding with a displacer, and the refrigerating performance of a Stirling refrigerator is further enhanced.

Stirling engine

An exercise management machine which measures the individual's pulse and is provided with an indicator to inform the user of an exercise program that is suited to the individual and/or an indicator to inform the individual of the results of exercise, and if possible, an indicator to instruct the user to train according to the prescribed program, from warming up, training to cooling down, and keeps the individual informed of his/her ongoing status.

Exercise and training machine with microcomputer-assisted training guide

A foldable weighing scale of strain gauge type comprising a pair of scale components of generally identical construction and shape. Each of the scale components comprises a platform, a base, and a strain inducing plate having at least one strain gauge. The scale components are hingedly connected together for movement between unfolded and folded positions and are held in an unfolded position when the scale is to be used for the weight measurement.

Foldable weighing scale

Growing community of inventors

Hirakata, Japan

Haruhiko Murakami