Abstract: It is an objective of the present invention to provide a means of easily mass-producing ?-aminobutyric acid with the use of microorganisms. The present invention relates to a method for producing a ?-aminobutyric-acid-containing food, comprising causing a yeast or a treated product thereof, which has the ability to produce ?-aminobutyric acid in the presence of a sugar or a metabolic intermediate of sugar metabolism through a fermentation reaction, to act on a sugar, a metabolic intermediate of sugar metabolism, both a sugar or a metabolic intermediate of sugar metabolism and a glutamic acid or a salt thereof.

Abstract: A diagnostic system using a nuclear magnetic resonance phenomenon comprises an external magnetic field generator, provided externally, for generating a magnetic field in a living body, a thin diameter member capable of being inserted into a body cavity and having flexibility, a high frequency coil, provided at a top end of the thin diameter member, for transmitting and receiving a high frequency, a nuclear magnetic resonance signal measuring device for receiving a nuclear magnetic resonance signal from the living body, and a transformer, provided between the high frequency coil and the nuclear magnetic resonance signal measuring device, for electrically isolating and separating the high frequency coil from the nuclear magnetic resonance signal measuring device in a manner such that the nuclear magnetic resonance signal is transmittable between the high frequency coil and the nuclear magnetic resonance signal measuring device.

Abstract: A medical apparatus comprises an electrical medical apparatus for use with an endoscope connectable thereto and adapted for at least one a diagnostic and medical treatment; at least one electrical non-medical apparatus including a line cord and a plug, which is used in association with the electrical medical apparatus; and an isolating transformer apparatus isolating a patient from electrical shocks from the electrical medical apparatus used together with the electrical non-medical apparatus. The isolating transformer apparatus is connectable by an authorized person to a commercial power supply and is connected to the line cord and plug of the electrical non-medical apparatus. The electrical medical apparatus is connectable to the commerical power supply.

Abstract: An endoscope apparatus has an illuminating device for applying at least infrared illuminating light to the interior of an organic body across the organic tissue of the body, an elongated insert portion to be inserted into the body, and an image pickup device having a light-receiving portion provided on an end of the insert portion and capable of picking up the infrared image of an object illuminated by the light transmitted through the tissue of the body. The endoscope apparatus further has an exposure amount control device capable of controlling the amount of exposure of the object by the illuminating device and applied to the object through the tissue of the body, and the amount of exposure of the object by illuminating light from another illuminating device which applies illuminating light to the object from inside of the body. The endoscope light source apparatus also comprises a body outside illuminating apparatus transmittively illuminating from outside the body the part observed with the endoscope.

Abstract: An electrical surgical knife device stops supplying an incision current, a coagulation current or a blend current whenever at least two of selection switches are actuated at the same time, said selection switches being provided for selecting the incision current, the coagulation current and the blend current, respectively.

Abstract: An endoscope type high frequency surgical apparatus wherein a high frequency current feedback pin is mounted on a connector of an endoscope in electrical connection to a metal section of the endoscope and also detachably connected to a feedback terminal of a light source unit; and said feedback terminal is connected to a patient output terminal of a high frequency power supply source through a feedback line.