Abstract: An electrostatic recording head has a plurality of electrode wires arranged parallel to each other at a predetermined pitch to form recording electrodes at one ends thereof, control electrodes arranged along these recording electrodes, and a recording electrode retainer for integrally fixing these electrodes with a resin. The other ends of these electrode wires are integrally fixed by an electrode wire terminal end retainer of a resin. The electrode wires are electrically connected to a part of the conductive pattern formed on a printed circuit board interposed between both retainers, and are grouped thereby to form a plurality of recording electrode set conductors. These conductors and lead wires connected to the control electrodes are connected to connector terminals. A recording voltage is applied to the connector terminals.

Abstract: Frequency information is stored in a tone coefficient memory and accumulated to obtain address information for reading out a musical sound from a musical waveshape memory by a musical sound generating circuit. Envelope information is stored in an envelope coefficient memory and accumulated to obtain address information for reading out an envelope waveshape from an envelope memory by an envelope generating circuit. An address counter performs address assignment for operating the musical sound generating circuit and the envelope generating circuit on a time-divided basis. The frequency information and the envelope information are respectively accumulated by a common accumulator on the time-divided basis. Further, attack and decay coefficients are stored in the envelope memory by higher and lower order bits of the same address, respectively, and the contents of the higher and lower order bits are selectively read out.

Abstract: An improvement in or relating to the fluidized bed-type heating reactor for introducing into the fluidized bed thereof a water-containing substance to be treated such as an uranyl nitrate solution and subjecting the substance to heat treatment. The reactor of the invention is provided with a microwave-generating means for applying microwaves to the fluidized bed and thereby heating the same.

Abstract: Disclosed is an apparatus for treating the surface of a material in a gas plasma generated by microwave discharge. The apparatus comprises a microwave generator, a waveguide for transmitting the microwave generated from the microwave generator, a closed vessel housing a material to be treated, means for introducing a gas into the closed vessel, means for withdrawing the gas from the closed vessel, an antenna means inserted at least partially into the closed vessel, said antenna means serving to pick up the microwave from the waveguide and to deliver said microwave into the closed vessel for producing a gas plasma, and a cylindrical body formed of a microwave-transmitting material, mounted to the closed vessel in an air-tight fashion, and surrounding the antenna means at the portion inserted into the closed vessel.

Abstract: In an electric power converting apparatus utilized to convert the power of a storage battery into an AC voltage, step up the AC voltage by use of a step up transformer and rectify the secondary voltage of the transformer to directly operate a DC driving motor of a car or an AC motor through an inverter, a rectifier and an inverter are provided to energize the secondary of the transformer from a commercial source and another rectifier is provided on the primary side of the transformer to charge the storage battery.