Improvement in the acid catalyzed process for preparing alkyl glycosides by reaction of an alcohol with a monosaccharide or source of monosaccharide moiety, the improvement residing in the use of certain organic bases to neutralize the catalyst at the end of the reaction.

A redundancy circuit that consumes no power before or after activation switches a pair of output nodes from a first set of complementary logic levels to an inverted set when it is activated by blowing a pair of fuses.

An aiming apparatus for making transverse bores in a patient's bone in register with the holes or bores of an osteosynthesis aid in the bone, especially an interlocking nail, comprises an elongated holder for the accommodation of an aiming member adapted to be brought into the beam path of an X-ray apparatus, a reception head for receivig a drill or wire drill rotatably supported in the holder, an...

Platinum complexes useful for inducing regression and/or palliation of cancer diseases in mammals.

The present invention relates to the use of 2'-deoxy-5-ethynyluridine and its pharmaceutically acceptable derivatives in the treatment and prophylaxis of varicella zoster virus and cytomegalovirus infections. Also provided are pharmaceutical formulations and processes for the preparation of the compounds according to the invention.

The present invention relates to sialic acid derivatives. According to the present invention, there is provided sialic acid derivatives having the general formula (I): wherein, R<1> represents hydrogen, an acetyl group, a trityl group, (R<5> represents hydrogen or an acetyl group and R<6> represents hydrogen, sodium or a methyl group). R<2> represents hydrogen or an acetyl group, one...

There are disclosed novel di- and tri-O-acetyl-23-O-demycinosyl-4''-O-iso-valeryltylosins and the pharmaceutically acceptable salts thereof, which have improved activity as antibacterials and provide higher blood levels than other tylosin derived compounds. These compounds have the following structural formula I wherein R is acetyl or hydrogen and z is for example O or

PURPOSE:To carry out a connection of, e.g., intratunnel waterproof sheets firmly and in good workability, by heating to a transparency point the specified portions formed on the hot-melt adhesive layers at the end of each film to be connected. CONSTITUTION:For example, either or both of sheets 1 and 1' to be connected each other is coated with a transparent hot-melt adhesive of lower melting point...

PURPOSE:To improve the efficiency of revolving torque by arranging rotor plates on both surfaces of a stator generating surface waves and receiving surface waves generated by piezoelectric elements fitted on both surfaces of the stator by the rotor plates. CONSTITUTION:A stator for a surface-wave motor is formed by arranging a plurality of arcuate stators 1 onto the circumference of a circle, and ...

PURPOSE:To utilize surface waves efficiently by interposing a tacky fluid between a moving piece and a stator and receiving the surface waves of the stator by viscous force. CONSTITUTION:With an ultrasonic motor, a ring-shaped stator 3 is mounted to a casing section 1 through a cushion material 2, and a large number of piezoelectric elements 4 are fitted to the stator 3. Voltage having phase diffe...

PURPOSE:To fix a vibrator positively by connecting the vibrator and a moving piece for a progressive wave type oscillatory-wave motor with screws and holding the vibrator by an auxiliary vibrator. CONSTITUTION:An oscillatory-wave motor is constituted of a ring-shaped piezoelectric element 1, a ring-shaped elastic body 2, a cylindrical moving body 3, a ring-shaped fixing body 4, a circular pan-shap...

PURPOSE:To stabilize the pressurization of a moving body and a vibrator by connecting the vibrator and the moving body for a progressive wave type oscillatory-wave motor effective partial screws. CONSTITUTION:An oscillatory-wave motor is constituted of a ring-shaped piezoelectric element 1, a ring-shaped elastic body 2, a cylindrical moving body 3, a ring-shaped fixing body 4, a circular pan-shape...

PURPOSE:To stabilize the pressurization of a vibrator by constituting the shape, size and material of the vibrator for a progressive wave type oscillatory-wave motor under specific conditions. CONSTITUTION:An oscillatory-wave motor is organized of a ring-shaped piezoelectric element 1, a ring-shaped elastic body 2, a cylindrical moving body 3, a ring-shaped fixing body 4, a circular pan-shaped con...

PURPOSE:To stabilize the pressurization of a vibrator, and to increase an output and improve efficiency by constituting the shape, size and material of the vibrator for a progressive wave type oscillatory-wave motor under specific conditions. CONSTITUTION:An oscillatory-wave motor is organized of a ring-shaped piezoelectric element 1, a ring-shaped elastic body 2, a cylindrical moving body 3, a ri...

PURPOSE:To stabilize the pressurization of a moving body and a vibrator by connecting the vibrator and the moving body for a ring-shaped progressive wave type oscillatory-wave motor by a screw. CONSTITUTION:An oscillatory-wave motor is constituted of, a ring-shaped piezoelectric element 1, an elastic body 2, a moving body, a fixing body 4, vibration absorbers 5a-5b, a rotation retaining ring 6, et...

PURPOSE:To compact an oscillatory-wave motor by bonding a thin ring-shaped piezoelectric element with the end surface of a ring shaped elastic body and forming two groups of polarization treatment sections in the circumferential direction. CONSTITUTION:An oscillatory-wave motor is constituted of a ring-shaped piezoelectric element 1, an elastic body 2, a fixing body 4, vibration absorbers 5a-5b, a...

PURPOSE:To stabilize the pressurization of a moving body and a vibrator by connecting the vibrator and the moving body for a progressive wave type oscillatory-wave motor with a screw. CONSTITUTION:An oscillatory-wave motor is constituted of a ring-shaped piezoelectric element 1, an elastic body 2, a moving body 3, a fixing body 4, absorbers 5a-5b such as felt, a rotation retaining ring 6, a load s...

PURPOSE:To simplify a power circuit and wiring, by performing polarized processing so that a direct expansion pole to impress cycle voltage to an electrostrictive element and associated expansion poles situated on either side of the direct expansion pole may be comprised. CONSTITUTION:A vibrator 10 of an electrostriction motor is formed by an electrostrictive element 11 shaped in ring, etc. and a ...

A liquid ejection recording head comprises a supporting substrate having energy generating elements thereon, a lid member and a wall portion between the supporting substrate and the lid member. The wall portion includes a surrounding wall that forms a liquid chamber between the substrate and the lid member and an enclosing wall disposed around the surrounding wall that provides a gap between the s...