1496890 Surface oxidized magnetic powder BASF AG 30 Dec 1974 [29 Dec 1973] 56002/74 Heading C7U A particulate composition comprising Co 0À05 -0À96 Ni 0À95-0À04 is surface oxidized by N 2 O (optionally diluted with N 2 , CO 2 or noble gas) to form antiferromagnetic Co Ni oxide phase magnetically coupled with the ferromagnetic alloy phase. The particulate alloy may contain such amounts of Al, Cr, F...

Magnetic materials which essentially consist of a phase A with a ferromagnetic spin system and a phase B with an anti-ferromagnetic spin system, phases A and B interacting by exchange coupling, and the manufacture of such materials. The materials consist essentially of two-phase magnetic single-domain particles, with the alloy [CoxNi1-x] as the ferromagnetic phase A and its oxidized form [(CoO)x(N...

A brushless D. C. motor is disclosed having two bifilar winding wire pairs with each bifilar pair forming alternate windings. Each winding is switched by a transistor which has a back poled diode connected in parallel therewith. The control circuit sequences energization of single windings with each winding energized being in a different bifilar pair than the next preceding energized winding where...

PURPOSE:To improve excitation efficiency, and to contrive to hold long life of a penetrating window and other parts, etc. of a microwave plasma processor by a method wherein an inside wall is provided inside of the wall of a process chamber to perform the plasma process of a processing sample by converting gas of a plasma generating part into plasma, and reaction gas is guided to the microwave pen...

An FET linear power amplifying apparatus with an FET power amplifier and a distortion generator which produces a distortion signal indicative of a distortion component having the same amplitude and inverted phase as those of a distortion component produced by the FET power amplifier. The amplitude and the phase of the distortion signal are controlled in accordance with a control signal which depen...

An input signal level converter for applying a TTL signal to an actual input of an MOS circuit is required for n-MOS digital circuits controlled with TTL signals. This circuit forms a Schmitt trigger and comprises five MOS field effect transistors and a bootstrap capacitor. The transistors are preferably of the n-channel type and are self-inhibiting. This circuit is improved by means of two furthe...