Japana Co., Ltd.

Shigehiro Kawai

It is aimed at providing a golf address deviation detecting apparatus capable of detecting as to which of inaccuracy in loft angle, inaccuracy in lie angle, and inaccuracy in face orientation, inaccuracy, if any, occurred upon address by golf club is caused by. There is provided an apparatus comprising a light reflecting section(s) and light irradiating units, so that inaccuracies in loft angle, lie angle, and face orientation are detected and distinguished from one another, based on differences among patterns of the light-beams reflected by the light reflecting section(s).

Gap detection devices of golf address and exercise form detection devices

A system for judging a ski or snowboard allows a ski board or snowboard most suitable for each skier or snowboarder to be judged by considering the leg strength of each skier or snowboarder. The system includes a storage means for storing a bending characteristic of the ski or snowboard, an input means for inputting the weight and leg strength of the skier or snowboarder, a board characteristic detecting means for determining a bending characteristic of a ski or snowboard that corresponds to the weight and leg strength, and a board searching means for searching the storage means for skis or snowboards that correspond to the bending characteristics determined by the board characteristic detecting means.

System for judging ski or snowboard

A leg strength measuring apparatus is capable of measuring a gravity center distribution of loads and leg strength which can in turn serve as a reference for the selection of a ski, a snowboard, ski boots, or snowboarding boots appropriate for a user of the apparatus. The leg strength measuring apparatus includes two footplates upon which a person to be measured steps separately with his left and right feet, and load sensors for detecting loads applied to each of the footplates at least at three points.

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Tajimi, Japan

Shigehiro Kawai