Abstract: A pattern recognition device (10) includes an acquisition unit (13) configured to acquire a plurality of recognition candidates obtained by pattern recognition for an input image and having a recognition score, a calculation unit (17) configured to calculate an evaluation value obtained by quantifying a possibility of a recognition candidate (K) being correct answer data corresponding to the input data on the basis of a feature quantity regarding a recognition candidate (A1) and the recognition candidate (K), for each pair of the recognition candidate (A1) having the number one recognition score and another recognition candidate (K) among the plurality of recognition candidates, and a determination unit (18) configured to determine a final recognition result from among the plurality of recognition candidates on the basis of an evaluation value for each recognition candidate (K).

Abstract: A magnetic recording medium is disclosed which comprises a support having formed thereon a magnetic layer containing a magnetic metallic powder with no change in its differential thermal curve up to a temperature of at least 80.degree. C. Said magnetic metallic powder contains an alloy system of at least one metal selected from the group consisting of iron, nickel and cobalt as the main component(s) with or without at least one other element, such as Fe-Ni-Co, Fe-Mn-Zn, Fe-Co-Ni-P, Fe-Ni-Zn, Fe-Ni-Cr-P, Fe-Co-Ni-Cr, Fe-Co-P, Fe-Ni, Fe-Ni-Mn, Co-Ni, Co-Ni-P, Fe-Al, Fe-Mn-Zn or Fe-Al-P.

Abstract: A magnetic recording medium comprising a support and a magnetic layer on said support. Said magnetic layer is a unitary magnetic layer comprising iron oxide powder having cobalt adsorbed on the surface thereof. The average grain size of said powder is not more than 0.5.mu., the ratio of the major axis to the minor axis (acicular ratio) of said powder is from 1.3 to 4.5 and the coercive force of said powder is from 500 to 800 Oe.

Abstract: A magnetic recording medium comprising a support and a magnetic layer on said support. The magnetic layer is a unitary magnetic layer comprising ferromagnetic metallic powder. The average grain size of said ferromagnetic powder is not more than 0.5.mu., the ratio of the major axis to the minor axis (acicular ratio) of said powders is from 1.3 to 4.5, and the coercive force of said powder is from 1350 Oe to 1600 Oe.

Abstract: A magnetic recording medium comprising a support and a magnetic layer on said support. Said magnetic layer is a unitary magnetic layer comprising ferromagnetic metallic powder. The average grain size of said ferromagnetic powder is not more than 0.5.mu., the ratio of the major axis to the minor axis (acicular ratio) of said powders is from 1.3 to 4.5 and the coercive force of said powders is from 550 to 800 Oe.

Abstract: Improved method and apparatus for forming an electrostatic latent image on a recording medium by the simultaneous projection of an ion current and exposure to image light, in which a control grid for controlling the ion current has a plurality of layers, including a photoconductive layer, a conductive layer, and an insulating layer. A first bias voltage is applied to the conductive layer to form an electric field which directs the ion current toward the recording medium, and a second bias voltage, higher than the first bias voltage, forms a second electric field in the control grid for controlling passage of the ions. The recording medium is adapted to absorb the image light thereon.