Abstract: A magnetic transducer head utilizing magnetoresistance effect having a circuit for applying a constant voltage to outer ends of at least one pair of magnetoresistance effect elements provided in series on a discontinuous portion other than a magnetic gap of a magnetic core forming a magnetic gap and a conductor arrangement for applying bias magnetic fields opposite in polarity to the magnetoresistance effect elements, respectively wherein an output is derived from a connected point between the pair of magnetoresistance effect elements.

Abstract: Disclosed are a 2-phenylalkyl-3-aminoalkyl-4(3H)-quinazolinone compound of Formula (1): ##STR1## wherein, X represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a phenoxy group, a benzyloxy group, a halogen atom or a hydroxy group; Y represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a benzyloxy group, a halogen atom or a nitro group; R.sup.1 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; R.sup.2 represents an alkyl group having 1 to 5 carbon atoms or a group of Formula (2) ##STR2## [wherein, Z represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms or a halogen atom; d is an integer of 1 to 3; and l is an integer of 1 to 5]; or R.sup.1 and R.sup.

Abstract: There are presented novel quinazoline derivatives, namely 2-(4-substituted-carbamoyl-piperazin-1-yl)quinazoline derivatives, 2-(4-substituted-carbamoyl-homopiperazin-1-yl)quinazoline derivatives, 2-(4-substituted-thiocarbamoyl-piperazin-1-yl)quinazoline derivatives and 2-(4-substituted-thiocarbamoyl-piperazin-1-yl)quinazoline derivatives, having excellent antihypertensive activities.

Abstract: A magnetic transducer head utilizing a thin film magneto-resistance effect element is disclosed in which the amount of a DC bias magnetic field is so selected that only the end portion of the thin film magneto-resistance effect element serving as a contact surface with a magnetic medium is effectively given with sensitivity and the element is saturated in the vicinity of its central portion in its width direction.

Abstract: A magnetic transducer head utilizing magnetoresistance effect is disclosed which includes a thin film magnetoresistance effect element held between, first and second substrates, at least one of the first and second substrates being formed of an electrically conductive material, and a biasing means for the magnetoresistance effect element to satisfy a potential relation V.sub.MR -V.sub.S .ltoreq.0.2 volt, wherein V.sub.MR is a potential of the magnetoresistance effect element, and V.sub.S is a potential of the conductive substrate.

Abstract: There are provided a novel compound, i.e., a 2-piperazino-4-substituted-5,6-alkylenepyrimidine derivative represented by the formula: ##STR1## wherein Y, Z and n are defined in the specification and claims, and a pharmaceutically acceptable acid addition salt thereof.The compounds of the present invention show, an anti-inflammatory effect, a blood sugar level lowering effect, a blood platelet aggregation suppressive effect, an anorexigenic action and a Serotonin effect.

Abstract: Novel quinazoline compounds and antihypertensive compositions containing said compounds are disclosed; said compounds having the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or an alkyl group having 1-5 carbon atoms;R.sup.2 is a group of the formula ##STR2## in which Y is a hydrogen atom, an alkyl group of 1-5 carbon atoms, an alkoxy group of 1-5 carbon atoms, an alkenyloxy group, a methylenedioxy group, a nitro group, a halogen atom, a trifluoromethyl group, an acyloxy group, a hydroxy group, an unsubstituted or substituted amino group or a condensed benzene nucleus and m is an integer of 1-3 inclusive, or a group of the formula ##STR3## in which X is an oxygen atom, a sulfur atom or a carbon-nitrogen double bond and Z is a hydrogen atom, an alkyl group of 1-5 carbon atoms, an alkoxy group of 1-5 carbon atoms, a nitro group or a halogen atom; and n is an integer of 2-3 inclusive;provided that, when R.sup.2 is the said group ##STR4## n is 2 and R.sup.1 is a hydrogen atom or, when R.sup.

Abstract: A brush-less DC motor includes a stator member; a stationary cylindrical member projected from the stator member and having bearings on its inner circumferential surface; a rotary shaft being rotatably supported by the bearings of the stationary cylindrical member; a rotary cylindrical member into which the stationary cylindrical member is inserted, and to which the rotary shaft is fixed; two rotary discs of magnetic material, fixed to the rotary cylindrical member and spaced from each other; a permanent magnet fixed to one of the rotary discs; a rotational-position detecting member; and a coil assembly including a plurality of coil units. The working point of the rotary shaft is nearer to the stationary cylindrical member than to the rotary cylindrical member.

Abstract: A spark-advance mechanism for an internal combustion engine is operated by vacuum pressure in the engine intake manifold. A conduit connecting the spark-advance mechanism to the intake manifold includes a solenoid operated valve which is normally open, and which is closed by either of two switches connected in parallel. One of the switches is closed when the engine temperature is low, and the other is closed when the engine RPM is high. When the solenoid valve is energized by either or both switches to close the conduit, atmospheric air is bled through an orifice to cause slow advance of the spark timing.

Abstract: The present invention provides a novel horticultural and agricultural fungicidal composition which contains as an effective component a 2H-chromene-2-spiro-3'-phthalide derivative and a method for killing fungus on plants.

Abstract: A wood preservative composition for control of wood decay by fungi, which comprises 2H-benzopyran-2-spiro-3'-phthalide or its derivatives such as 6-methyl-2H-benzopyran-2-spiro-3'-phthalide or benzo[f]-2H-benzopyran-2-spiro-3'-phthalide as an active ingredient. The active ingredient has extremely low mammalian toxicity, and exhibits an excellent wood-decay controlling effect.