PURPOSE:To provide a Schottky barrier semiconductor device with a large surge-proof voltage without attaching external parts, by forming a Zener diode utilizing a P-N junction between a guard region and ion implanted region. CONSTITUTION:An N-type epitaxial layer 2 is formed on a N<+>-type silicon semiconductor substrate 1. The surface of the epitaxial layer 2 is coated with a silicon oxide film 3...

A process of providing an inorganic anti-stick coating directly on non-oriented, semi-processed electrical steels by applying to such steels a coating solution containing Al+++, Mg++, and H2PO4- in a specified relative relationship, the concentration of Al+++, Mg++, and H2PO4- comprising 100 parts by weight calculated as Al2O3, MgO and H3PO4, respectively, on a water-free basis. The coating soluti...

An electric knife having a housing, a motor fixed in the housing having a drive shaft disposed for rotation about a drive axis, a spur gear fixed to the end of the drive shaft, a flange fixed to the motor including an integrally formed, axially-projecting output shaft coaxial to an output axis and parallel to the drive axis, an output gear in meshing engagement with and driven by the spur gear dis...

A laser has an optical cavity defined by two reflecting members (1, 2) one at least of which is a grid polariser which has a parallel set of metallic strips on a transparent substrate and which transmits radiation polarised perpendicular to the strips and reflects the rest. A gain cell (4) containing a gaseous active medium is located within the optical cavity and is stimulated by a power source 5...

The apparatus (10) for orthoradial panoramic tomography comprises a radiation source (111) for motion relative to a point of reference (Pb); a cassette means (112) also for motion relative to the point of reference; a support (11) for holding the radiation source (111) and the cassette (112) relative to the point of reference; a head positioning means (16, 25) including a first or intraoral device...

PURPOSE:To improve the electron photographic properties of the titled body by incorporating at least one of specific hydrazone compds as a photoconductive substance to the titled body. CONSTITUTION:The titled body is the electrophotographic sensitive body contg. as the photoconductive substance, a photosensitive layer composed of at least one of the hydrazone compds. shown by formula wherein R1 an...

NEW MATERIAL:The compound of formula I [R is H or (CH2)n-R1(n is integer of 1-4; R1 is H, OH, lower alkoxy, SH, lower alkylthio, NH2 di(lower alkyl) amino, 1-11C alkyl, cycloalkyl, 5-6-membered heterocyclic group, or aryl which may have 1-2 substituent groups such as halogen); R2 and R3 are H, halogen, CN, NO2, NH2, lower alkyl, halogenatedlower alkyl, OH, lower alkoxy, aryloxy, COOH or lower alko...

NEW MATERIAL:The compound of formula I (R1 is C4-10 straight-chain alkyl; R2 is 1-10C straight chain alkyl). EXAMPLE:2-Butyl-5-(4-butylphenyl)pyridine. USE:A liquid crystal compound. PREPARATION:The objective compound can be prepared by (1) reducing 4- alkylphenylcarboxylic acid chloride of formula II, (2) subjecting the reduction product successively to chlorine-substitution, cyanation, hydrolysi...

The present invention relates to a novel process for the preparation of 7 beta -amino-3- or -2-cephem-3-ol-4-carboxylic acid compound of the formula IA or the formula IB in which R@ denotes hydrogen or an amino protective group R@, R@ represents hydrogen or an acyl group Ac, or R@ and R@ together denote a bivalent amino protective group, R<2> represents hydroxyl or a radical R@ wh...

The present invention relates to a novel process for the preparation of 7 beta -amino-3- or -2-cephem-3-ol-4-carboxylic acid compound of the formula IA or the formula IB in which R@ denotes hydrogen or an amino protective group R@, R@ represents hydrogen or an acyl group Ac, or R@ and R@ together denote a bivalent amino protective group, R<2> represents hydroxyl or a radical R@ wh...

Sulfonamides derived from substituted 2-amino-1,2,4-triazolo[1,5-a]pyrimidines are prepared by reacting a desired sulfonamide with dimethyl N-cyanodithioiminocarbonate in the presence of a base followed by reaction with an excess of hydrazine and then a 1,3-dicarbonyl compound. The resulting products have a plurality of herbicidal uses.

A solid sustained release dosage form is disclosed comprising a gel matrix containing HPMC and a major amount of a plasticizer therefor into which gel matrix is reversibly dispersed a pharmaceutically active agent.

The compositions have a protracted action and are sterile aqueous formulations of a peptide or protein containing a physiologically tolerated gelling agent in an amount sufficient for a depot action.

PURPOSE:To provide drug containing a specific isoquinoline derivative or its salt as an active component, and useful as an agent for suppressing the formation of lipid peroxide, an agent for suppressing the release of lysozyme and the production of active oxygen and/or an agent for suppressing the isolation of histamine. CONSTITUTION:The objective agent contains the isoquinoline derivative of form...

PURPOSE:A powder sol product that is obtained by filling an aerosol vessel provided with a specifically structured valve with a hydrophobic powder or its suspension in a higher alcohol and flon 142b as a major propellant, thus showing good performance with high safety. CONSTITUTION:A composition containing 3-10wt% of a hydrophobic powder such as talc, kaolin or its suspension in a higher alcohol a...

PURPOSE:To improve focus detection errors due to brightness of an object and to perform auto-focusing quickly by repeating focus detection while moving a photographic lens if the object is bright but performing focus detection with the photographic lens stopped if the object is dark. CONSTITUTION:An auto-focusing device which operates the focusing state of the photographic lens on the basis of the...

An improved electrode for use in electrochemical reactions such as take place in lead-acid storage batteries and nickel plating baths; where an improvement is the use of a coated electrode having an electronically conductive coating about 10-200 microns thick; the coating contains, a film-forming binder selected from the following group: acrylic/polysiloxane polymer blend, a chlorosulfonated polye...