Sony Corporation

Minoru Ohzeki

Yoichiro Sako

Takashi Toyama

Takayoshi Naoi

Tomoko Ono

Mitsuyoshi Yamamoto

Masatake Hayashi

Tsuneo Muchi

Toshiro C Watanabe

Takehiro Kakizaki

Takahiro Yukawa

In a voluntary-muscle strength measurement method and a muscular tonus state judgment method, the muscle strength of a voluntary muscle and the muscular tonus state can be measured accurately and objectively. The muscle strength of a voluntary muscle as the examiner pulls apart an O-ring shape formed with the thumb and another finger of subject's hand is measured with a first sensor placed at at least one point on the two fingers forming O-ring shape, and it is detected whether or not two fingers forming O-ring shape were pulled apart with a second sensor placed between two fingers forming O-ring shape, and the muscle strength at the time two fingers forming O-ring shape were pulled apart is measured by the detected outputs of the first and second sensors. Thereby, the O-ring test can be executed accurately and the muscle strength of a voluntary muscle can be measured with high reliability. The pressure is applied to an O-ring shape formed with the thumb and another finger of subject's hand from outside through a pressure sensor by a pressure applying unit, and the applied pressure is measured from the output of the pressure sensor. The muscle tonus state when the pressure is applied to the O-ring shape can be judged by the period of time in which the result of measurement is higher than the predetermined value.

O-ring test method and apparatus for human body

O-ring test method and apparatus for measuring muscular strength

A jumbo-size picture display device arranged such that a number of red, green and blue fluorescent trios are formed in an X-Y matrix form. A shading material for controlling the color temperature is formed above predetermined red, green and blue fluorescent segments, whereby the color temperature can be corrected in a simple manner. The quality of the jumbo-size picture display device is improved and the manufacturing costs are reduced.

Display device

Fluorescent display apparatus with first, second and third grid plates

Described is a beam index type color cathode ray tube in which at least one of tricolor phosphor stripes, that is the red, blue and green stripes, is different in width from the other color phosphor stripes, and m index stripes are associated with n sets or triplets of the color phosphor stripes. The widthwise center-to-center distance between the adjoining color phosphor stripes is set to a constant value. Each index stripe is of a width lesser than the width of the guard band provided between adjoining ones of the color phosphor stripes, and is provided at the widthwise center of the associated guard band. The arrangement provides index signals of sufficient intensity, while assuring a positive color switching.

Beam index type color cathode ray tube

Video projector type television receiver

Growing community of inventors

Kanagawa, Japan

Minoru Ohzeki