Abstract: An ozone generator comprises a pair of spaced opposing electrodes, electrically conductive members connecting the pair of electrodes to a high-voltage alternating-current power source to generate an electric discharge between the electrodes, and a dielectric provided between the opposing electrodes. A gas flow passage for allowing flow of a material gas therethrough is defined by the surfaces of the electrodes. At least one of the surfaces of the pair of electrodes has a plurality of parallel grooves. The material gas flows in a space between the plurality of grooves and the dielectric, in a direction transverse to the grooves.

Abstract: A gas dissolved water producing apparatus includes a gas dissolving section, a gas channel for guiding a gas into the dissolving section, a first water channel for guiding water into the dissolving section, a gas dissolved water discharge channel, and a second water channel for guiding the water without passing through the dissolving section. The second water channel joins the gas dissolved water discharge channel to control the solution gas dissolved in the gas dissolved water can be controlled to a prescribed level of concentration.

Abstract: A gas dissolved water producing apparatus includes a gas dissolving section, a gas channel for guiding a gas into the dissolving section, a first water channel for guiding water into the dissolving section, a gas dissolved water discharge channel, and a second water channel for guiding the water without passing through the dissolving section. The second water channel joins the gas dissolved water discharge channel to control the solution gas dissolved in the gas dissolved water can be controlled to a prescribed level of concentration.

Abstract: An electronic musical instrument is equipped with plural series combinations of switches and resistors and a piezoelectric transducer associated with a movable member for producing electric signals representative of player's intentions to music sound to be generated, and a signal processing system processes the signals for generating the music sound; the signal processing system has a voltage discriminator so that the plural series combinations are connected in parallel to the voltage discriminator through a single conductive line; a vibration absorber is inserted between the movable member and the piezoelectric transducer so that the piezoelectric transducer exactly converts the motion of the movable member to the electric signal at each player's manipulation.

Abstract: An electronic drum system includes an electronic drum having a shell, a drum head stretched across an opening of the shell, a vibration sensor converting vibrations of the drum head to an electric signal and a damper held in contact with the reverse surface of the drum head; when a drummer strikes the drum head with a stick, the drum head is shaken, and vibrations follow; the damper is held in contact with a certain area on the reverse surface, and the shake and vibrations are propagated from another area free from the damper to the vibration sensor; the shake is surely propagated to the vibration sensor, and the vibrations are rapidly decayed; for this reason, the vibration sensor exactly discriminates the shake from the peaks of the vibrations, thereby preventing an electronic sound generator from unintentionally repeated electronic beats.

Abstract: The object of the present invention is to provide a gas dissolved water producing apparatus which can produce a gas dissolved water 31 having a concentration of a dissolved solution gas 3 not greater than a saturated concentration rapidly and efficiently.

Abstract: An electronic musical instrument is equipped with plural series combinations of switches and resistors and a piezoelectric transducer associated with a movable member for producing electric signals representative of player's intentions to music sound to be generated, and a signal processing system processes the signals for generating the music sound; the signal processing system has a voltage discriminator so that the plural series combinations are connected in parallel to the voltage discriminator through a single conductive line; a vibration absorber is inserted between the movable member and the piezoelectric transducer so that the piezoelectric transducer exactly converts the motion of the movable member to the electric signal at each player's manipulation.

Abstract: An ozone generator comprises a pair of spaced opposing electrodes, electrically conductive members connecting the pair of electrodes to a high-voltage alternating-current power source to generate an electric discharge between the electrodes, a dielectric provided between the opposing electrodes, and a gas flow passage for effecting flow of a material gas defined by the surfaces of the electrodes. At least one of the surfaces of the pair of electrodes has a plurality of parallel grooves. The material gas flows in a space between the plurality of grooves and the dielectric, in a direction transverse to the grooves.

Abstract: An electronic percussion instrument has a covering section 7A for covering the rim switch 5 on the outer periphery of a pad member 7 and a switch compression section 13 and two grooves 14 are provided on the back surface of the covering section 7A. In the switch compression section 13, a pressing surface 13a is made into a curved surface protruding towards the rim switch 5. The result is that striking forces for pressing the rim switch 5 are concentrated on the switch compression section 13 so as to enable to reliably and effectively transmit the forces to the rim switch 5 by elastic deformation of the switch compression section 13, regardless of the hitting direction of the drumstick on the rim section.

Abstract: An electronic cymbal (10) has a first cymbal unit (12) for normal playing and a second cymbal unit (13) for cup playing which are vertically separated and attached to a common instrument holder (11). The second cymbal unit (13) of a smaller size than the first cymbal unit (12) is positioned above the first cymbal unit (12) with an intervening felt washer (22). Transducers (15, 19) are provided on the back surface of respective cymbal units (12, 13).

Abstract: In an improved ozonizer, at least those parts of an ozone gas delivery path located downstream of an ozone generating cell which are to come into contact with ozone gas are either composed of or coated with at least one ozone-resistant, Cr-free material selected from among aluminum (Al), an aluminum alloy, Teflon, fluorinated nickel, a nickel alloy, a silicon oxide based glass and a high-purity aluminium oxide. The ozonizer is capable of producing ozone that is not contaminated with Cr compounds at all or which is insufficiently contaminated to cause any practical problem in the fabrication of highly integrated semiconductor devices.

Abstract: Ozonizer (10) which supplies a feed gas to ozone generating cell (11) under application of a high voltage and which delivers an ozone gas through an ozone gas transport path (consisting of pipes (14) and (15)) as it has been generated in said ozone generating cell (11) is characterized in that the ozone gas transport path is furnished with means for removing at least one of NOx, HF and SOx (in the drawings, the means is for removing NOx) and that the ozone gas from the ozone generating cell (11) is passed through said removing means, whereby at least one of NOx, HF and SOx in said ozone gas is removed before it is delivered to a subsequent stage. The product ozone is not contaminated with Cr compounds at all or insufficiently contaminated to cause any practical problems in the fabrication of highly integrated semiconductor devices.

Abstract: An ozone generating apparatus produces highly pure ozone gas which can be used in a semiconductor manufacturing process. The ozone generating apparatus comprises a high voltage source, an ozone generating cell which generates ozone gas by supplying a material gas while applying a high voltage from the high voltage source, and a passage for delivering the generated ozone gas from the ozone generating cell to a desired location. The passage comprises a material which has a passivation film formed by a passivation treatment in a dry process. The oxide passivation film comprises chromium oxide film, iron oxide film or a composite film of chromium oxide and iron oxide.

Abstract: Ozonizer (10) which supplies a feed gas to ozone generating cell (11) under application of a high voltage and which delivers an ozone gas through an ozone gas transport path (consisting of pipes (14) and (15)) as it has been generated in said ozone generating cell (11) is characterized in that the ozone gas transport path is furnished with means for removing at least one of NOx, HF and SOx (in the drawings, the means is for removing NOx) and that the ozone gas from the ozone generating cell (11) is passed through said removing means, whereby at least one of NOx, HF and SOx in said ozone gas is removed before it is delivered to a subsequent stage. The product ozone is not contaminated with Cr compounds at all or insufficiently contaminated to cause any practical problems in the fabrication of highly integrated semiconductor devices.

Abstract: A discharge reactor that generates silent discharge and/or creeping discharge between dielectric and high voltage electrode and/or grounded electrode, said dielectric being located between high voltage electrode and grounded electrode, and which generates clean ozone in the discharge space 1 as it passes through said discharge space 1 or as it is held within said discharge space 1, which discharge reactor is characterized in that the dielectric is made of highly purified quartz glass (SiO.sub.2) or single-crystal sapphire which is a highly purified crystallized aluminium oxide or high-purity alumina ceramics which is the firing of highly purified aluminum oxide. Further, in order to obtain cleaner and highly concentration ozone, at least the electrode or electrodes in the area of the discharge space which is to be exposed to discharge are made of a high-purity aluminum material and at least the area of the discharge space which is to be exposed to discharge is further coated with an anodic oxidation film.

Abstract: In an electric discharge type ozonizer using highly pure oxygen gas having a purity of not lower than 99.99% as a raw material gas, the pressure of a gas in the discharge space of a discharger is raised to a level higher than atmospheric pressure by at least 1.1 kgf/cm.sup.2, and/or in which a liquid-cooled discharger is used, and the temperature of the cooling liquid is set at a level not lower than 15.degree. C., whereby the ozonizer is capable of stably producing ozone gas at a high ozone concentration without causing lowering of the ozone concentration with time.

Abstract: A secondary battery with a negative electrode having an anode active material, a positive electrode, and a non-aqueous electrolyte, has its anode active material provided with vapor-grown and graphitized carbon fibers having a mean fiber diameter of 5 .mu.m or smaller, a mean length of 90 .mu.m or shorter, a mean aspect ratio of from 1 to 18, and a spin density of 8.times.10.sup.18 spins/g or less, when measured by the electron spin resonance absorption method.

Abstract: There are disclosed vapor-grown and graphitized carbon fibers capable of forming composite materials having the vapor-grown and graphitized carbon fibers contained at a high packing density and forming molded members consisting substantially solely of the vapor-grown and graphitized carbon fibers, a process for the preparation of the vapor-grown and graphitized carbon fibers, the molded member, and the composite member. The vapor-grown and graphitized carbon fibers have a mean fiber diameter of 5 .mu.m or smaller, a mean fiber length of 90 .mu.m or shorter, a mean aspect ratio of from 1 to 18, and a spin density of 8.times.10.sup.18 spins/g or less, when measured by the electron spin resonance absorption method. Such vapor-grown graphitized carbon fibers are prepared by graphitizing the vapor-grown carbon fibers at 2,000.degree. C. or higher and then fracturing them by applying a high impact thereto.

Abstract: A pad member of an electric percussion instrument is supported through a cushion member by a case member for isolating the pad member from noise produced in the case member upon strikes of the pad member, and a vibration sensor is connected with the pad member by means of a sensor board of vibration transmissive substance so as to propagate the vibrations of the pad member to the vibration sensor without any influence of the noise.

Abstract: An improved moxibustion case also performs acupressure. The moxibustion case is constructed with a cylindrical body having a moxa holder attached to its end portion to hold a cylindrical moxa slidably in its longitudinal direction and a cap member having a rear end portion fitted rotatably to the front end portion of the cylindrical body and a front wall having a discharge opening for a moxa combustion gas to treat a desired part of the body. Air supply openings at the circumference and along the length of the cylindrical body near its middle to control the moxa fire-force.