Abstract: The present invention is drawn to methods for treating cerebral infarction by administering to a patient in need thereof an effective amount of a compound of the formulae (I, II or III): ##STR1##

Abstract: An optical element supported to an optical element supporting lead is sealed by a package having a lens. A height t2 from the rear surface of the optical element supporting lead at the portion projected outside from the package to the rear surface of the package is set to be substantially equal to a height t1 from the surface of the optical element to a top of a lens or the difference between the heights t1 and t2 is set small. Thus, the package can be assembled into a printed circuit board or the like by an insertion machine. Moreover, a power-saving and a mass-production become possible.

Abstract: When evaluating defects, etc. of a sample by measuring thermal expansion displacement on the surface of the sample, which is produced by irradiating thereto an excitation beam of which intensity is cyclically modulated, a measuring beam having the displacement frequency F.sub.1 is irradiated to the vibrating surface of the sample, and the reflection beam is interfered with a reference beam having the frequency F.sub.2. The beat wave signal E.sub.1 (Beat frequency F.sub.b =F.sub.1 -F.sub.2) is converted to a binary signal E.sub.2. Then, the sample is evaluated by signals which are obtained by giving a suitable processing to the binary signals. In addition, the optic axes alignment is eliminated by utilizing the excitation beam itself concurrently as measuring beam.

Abstract: An apparatus for detecting position/variance of input light is disclosed which includes a photoelectric conversion device receiving input light constituted of a first resistive layer formed of a first photoelectric conversion material and a second resistive layer formed of a second photoelectric conversion material connected with the first resistive layer through a depletion layer or directly, wherein the first resistive layer is provided with uniform resistivity throughout its surface so that a linear output proportional to the average of the distances between one end of the photoelectric conversion device and positions of the input light is detected and the second resistive layer is provided with resistivity dependent upon the distance from its one end so that a quandratic ouput proportional to the average of the squares of the distances between one end of the photoelectric conversion device and positions of the input light is detected.