PURPOSE:To invariably enable accurate detection of color by connecting one end of an optical fiber to an element for receiving a reference light while the other end thereof faces the projection surface of a light emitting diode right sideways. CONSTITUTION:Light emitting diodes 3 in three colors, that is R (red), G (green) and B (blue), are arranged in a ring in the perimeter of a focusing lens 4,...

A reducing gas is generated in a molten metal bath wherein fuel, oxygen and a flux are injected into a pressure-tight vessel beneath the bath to produce a partially-desulfurized partial-oxidation gas having a hydrogen and carbon monoxide content of at least 50% and the process is controlled by injecting steam or a fuel rich gas consisting substantially of hydrogen, carbon monoxide methane, or a mi...

PURPOSE:To protect an electronic control equipment, etc., mounted on an unmanned carrier car from overheating by exhaustion and to protect the equipment from a zainfall and dust by opening and closing a shutter according to the state of a area where the unmanned carrier car runs. CONSTITUTION:The unmanned carrier car 1 runs along a guide cable G between stages in a factory, and in and out of the f...

PURPOSE:To detect an absolute level with high accuracy by compensating the temp. characteristics of a logarithm conversion type detector circuit, by changing the reference voltage of an AD converter circuit so as to follow the temp. change of the output voltage from a detector circuit by utilizing the voltage current characteristics of a diode. CONSTITUTION:An AC input signal 2 is detected by a lo...

PURPOSE:To specify a drawing color securely without any special operation by providing a detector which detects a drawing body to each housing container for housing the drawing body for a specific drawing color. CONSTITUTION:When a drawing body 1a is taken out of a housing container 2a for drawing in the drawing color of the drawing body 1a, the contact of a detector 3a is closed and the voltage o...

PURPOSE:To specify a drawing color securely without any special operation by providing a detector which detects a drawing body to each housing container for housing the drawing body for a specific drawing color. CONSTITUTION:When a drawing body 1 is taken out of a housing container 5 for drawing in the 1st drawing color, light from a light emitting diode 1 is not made incident to a photodetecting ...

Slider (10) for flying a transducer (26) closely above a rotating recording medium is similar to those of the prior art except that the surfaces of its air-bearing rails (12, 13, 14) are contoured to be rounded toward the outer and trailing edges of the rails (12, 13, 14), and preferably also toward the leading-edge taper (18, 19, 20) of each rail (12, 13, 14). The novel slider (10) flies a transd...

PURPOSE:To unify the heat dissipating quantities of chips according to the mounting positions on a substrate by a method wherein walls for conduction paths of heat to a radiator are provided protruding between the mutual semiconductor chips of the whole from the upper inside face of a cap. CONSTITUTION:A radiator 9 is adhered 10 on a cap 7A to seal airtightly semiconductor chips 2 of the plural nu...

PURPOSE:To improve the degree of circuit integration by applying an output signal to plural programmable counters having different frequency dividing ratio and providing a prescaler whose frequency dividing ratio is changed over so as to reduce number of FFs constituting a frequency dividing circuit. CONSTITUTION:The prescaler 2 whose frequency dividing ratio is changed over by a control signal VS...

Polymers of 98.9 to 95.5 weight percent of olefinically unsaturated carboxylic acids containing at least one activated double bond, 1 to about 3.5 weight percent of an alkyl acrylate ester of acrylic or methacrylic acid wherein the alkyl group contains 10 to 30 carbon atoms and 0.1 to less than 1 weight percent of a crosslinking monomer, are efficient thickeners in many applications where high ion...

A magnetic recording disc includes a plurality of sectors, each of which includes a plurality of data tracks and a reference zone containing information for identifying the data tracks. Some of the sectors are standby sectors containing information which would normally be contained in the sectors containing the data tracks. The reference zones of all sectors contain binary fault indicating bits wh...

PURPOSE:To miniaturize an optical system and at the same time to decrease the number of areas to be controlled by providing a 2-split photodetecting element which obtains a focus signal and another 2-split photodetecting element which obtains a tracking error signal on the same plane and close to each other. CONSTITUTION:The reflected light 10 obtained on an information track 9 of a disk 8 is refl...

PURPOSE:To improve the reliability of a control memory by refreshing the control memory of an RAM and correcting automatically an internal error of the memory refresh. CONSTITUTION:In a memory refresh mode a selector 10 delivers the contents of an address register 7 in the form of the address signal. Then the data of an RAM2 at the position of the address set to the register 7 is read out and set ...

PURPOSE:To recover an instantaneous fault of an RAM and to improve the reliability of a data processor by using an RAM and an EPROM to a program memory and a back-up memory respectively. CONSTITUTION:''1'' is added to the count value of a retrial counter every time a parity error FF9 is set. The contents of an address register 11 are supplied to an address back-up register 12. Then the contents of...

NEW MATERIAL:The antitumor antibiotic substance complex BBM-1675 composed of the main active components consisting of BBM-1675A1 and A2 and minor active components consisting of BBM-1675A3, A4, B1 and B2. The component 1675A1 has the following properties: Appearance, white or pale yellow crystal; apparent molecular weight (mass-spectrometry), 1,248; elemental compostion, C 52.17%, H 6.15%, S 9.09%...

Compounds having the formula: wherein (a) when R1 is -COCH3 or -COCH2OH, R2 is -OH, R3 is -OCH3 and R4 is -H; (b) when R2 is -COCH3 or -COCH2OH; R1 is -OH, R3 is -H and R4 is -OCH3; and which are useful in treating certain mammalian tumors, are prepared from 9,10-anhydro-N-trifluoroacetyl daunorubicin, a known compound.

The present invention relates to the micro-organism Streptomyces purpurascens (DSM 2658), its mutants and variants, a process for the preparation of anthracycline derivatives by fermentation of these cultures and to the anthracycline derivatives themselves. The new compounds are distinguished by antibacterial activity and, in addition, they act against various types of tumors.

The present invention relates to the micro-organism Streptomyces purpurascens (DSM 2658), its mutants and variants, a process for the preparation of anthracycline derivatives by fermentation of these cultures and to the anthracycline derivatives themselves. The new compounds are distinguished by antibacterial activity and, in addition, they act against various types of tumors.

PURPOSE:To provide an adhesive which can firmly bond a polyolefin to metal and improve the resistance to salt water and cathodic peeling, by adding calcium silicate powder and a specified amine hardener to an epoxy resin. CONSTITUTION:The titled adhesive is obtd. by blending 5-100pts.wt. calcium silicate and an amine hardener (e.g. a derivative obtd. from the addition reaction between an aliph. am...

A composite reinforcing rope is made of a cylindrical core of twisted filaments of aromatic polyamides around which a plurality of steel wires of a rectangular configuration are coiled. The steel wires are wound side-by-side in one layer. Each wire is twisted around its own axis to such a degree that its broader side fully engages the periphery of the polyamide core. The edges of respective wires ...