Abstract: A first type of superconductive photoelectric device is provided by a superconductive thin film located between two electrodes. The superconductive thin film is one which has a photo-conductive effect and converts from a normally conducting state to a superconductive state in response to light irradiation. The superconductive thin film is preferably formed of a compound semiconductor of Pb chalcogenide added with Pb and/or In added beyond the stoicheometry of the compound semiconductor, such as Pb.sub.1-x Sn.sub.x Te+In, so as to generate precipitations of Pb. A second type of superconductive photoelectric device is provided by a photo-conductive material formed of Pb.sub.1-x Sb.sub.x Te filled in a gap between two superconductive electrodes, where the gap width is shorter than 500 times of a coherence length.

Abstract: Novel organic platinum complex of the formula: ##STR1## wherein R.sup.1 is hydrogen atom or a lower alkyl group; R.sup.2 is hydrogen atom, a substituted or unsubstituted lower alkyl group, a lower alkenyl group, a lower alkynyl agroup, a lower alkoxy group, a lower alkanoyl group, amino group, a substituted or unsubstituted nitrogen-containing hetero-monocyclic group, or an oxygen-containing hetero-monocyclic group, Alk is a lower alkylene group, X is carbonyl or sulfonyl group, n is 1 or 2, which has excellent anti-tumor activity against various tumors and is useful as an anti-tumor agent, and a process for the preparation thereof, and a pharmaceutical composition containing said compound.

Abstract: Novel organic platinum complex of the formula: ##STR1## wherein R.sup.1 is hydrogen atom or a lower alkyl group, R.sup.2 is a substituted or unsubstituted lower alkyl group, a lower alkenyl group, a lower alkanoyl group, a mono- or di-lower alkylamino group, a substituted or unsubstituted nitrogen-containing hetero-monocyclic group, an oxygen-containing hetero-monocyclic group, or a group of the formula:--CH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.m CH.sub.3, X is carbonyl group or sulfonyl group, m is an integer of 1 or 2,which has excellent anti-tumor activity against various tumors and is useful as an anti-tumor agent, and a process for the preparation thereof, and a pharmaceutical composition containing said compound.

Abstract: A charge coupled device has a meandering charge path formed by a channel stop of unique shape. The channel stop is of interdigitated pattern, and the gate electrodes form a straight strip. The channel stop pattern and an asymmetric depletion layer formed within the channel cause the transfer of the charge through the channel via the meandering charge path. A transversal filter and imaging device are readily provided by extracting the signal from one or both sides of the channel.

Abstract: A charge coupled device transfers a charge via a meandering route in a channel having at least one bend. The selected channel bending angle has a maximum of two right angles, or 180.degree.. When the channel bending angle is less than 180.degree., the channel may be formed into a ring by being bent a plurality of times. The gate electrode is of simple rectangular form, and is bent at the same angle as the channel where the channel is bent. If the channel is bent at 180.degree., a signal injected from an input end is transferred to an area adjacent to the input end. The signal may be injected again at the input end for circulation, after amplification.

Abstract: A charge coupled device transfers a charge via a meandering route in a channel having at least one bend. The selected channel bending angle has a maximum of two right angles, or 180.degree.. When the channel bending angle is less than 180.degree., the channel may be formed into a ring by being bent a plurality of times. The gate electrode is of simple rectangular form, and is bent at the same angle as the channel where the channel is bent. If the channel is bent at 180.degree., a signal injected from an input end is transferred to an area adjacent to the input end. The signal may be injected again at the input end for circulation, after amplification.

Abstract: A charge coupled device has a meandering charge path formed by a channel stop of unique shape. The channel stop is of interdigitated pattern, and the gate electrodes form a straight strip. The channel stop pattern and an asymmetric depletion layer formed within the channel cause the transfer of the charge through the channel via the meandering charge path. A transversal filter and imaging device are readily provided by extracting the signal from one or both sides of the channel.

Abstract: Novel di-L-cysteine L-malate of the formula:[HS--CH.sub.2 --CH(NH.sub.3).sup.+ --COOH].sub.2.(.sup.- OOC--CHOH--CH.sub.2 --COO.sup.-)which has excellent storage stability and excellent pharmacological activities and is useful for the preparation of the amino acid infusion solutions, and process for the preparation of the di-L-cysteine L-malate by reacting 2 moles of L-cysteine L-malate and more than 0.9 mole of L-malic acid in an aqueous medium and collecting the resulting crystalline di-L-cysteine L-malate.

Abstract: A novel crystalline salt of a basic L-amino acid with L-malic acid, particularly a neutral crystalline salt consisting of 2 moles of L-lysine, L-ornithine or L-arginine with 1 mole of L-malic acid, which have no bitter taste and can be administered by oral route as a nutritive supplement or as a medicine, and further contain no chloride ion and hence are useful for preparing an infusion solution with no undesirable side effect due to chloride ion.

Abstract: An aqueous solution of L-malic acid and potassium ion is prepared having a pH of no more than 6.8. The aqueous solution is cooled to initiate crystallization of a potassium salt of L-malic acid, and the aqueous mixture obtained is allowed to stand at a pH of 5.3 to 6.8 until it substantially reaches liquid-solid equilibrium. The resultant crystals of monopotassium L-malate monohydrate are collected therefrom. The monopotassium L-malate monohydrate thus obtained may be dried to give the corresponding anhydrate. Monopotassium L-malate and its monohydrate are stable, non-hygroscopic crystals.