PURPOSE:To control volume of ink drops without depending on a plurality of driving pulses and life of driving mechanism for an ink jet device. CONSTITUTION:An LSI chip 56 impresses, in a specified width, the voltage V of a voltage line 54 to patterns 42 of a conductive layer communicating with metallic electrodes in an ink chamber to be driven in accordance with information inputted from a pulse w...

PURPOSE:To carry out a high quality printing with the volume optimum for printing provided to an ink drop. CONSTITUTION:Driving voltage in a waveform C is impressed at the time t0 to an ink chamber, and the impression is stopped after the lapse of 3 L/a. The volume of the ink chamber increases at the time t0 and the pressure in the entire ink chamber decreases, making ink meniscus continue to retr...

Modular partial bars include a substrate bar having a length and a plurality of printhead subunits attached to only one side of the substrate bar, each printhead subunit being spaced from an adjacent printhead subunit. These modular partial bars are used as building blocks to form full width staggered array printheads. When the printhead subunits are arranged on each substrate bar so that two subs...

The invention concerns an ultrasonic device for sealing at least two superimposed sheets, said device comprising a sealing assembly consisting of two elements which are respectively an anvil and a sonotrode, arranged opposite each other so that their facing surfaces form an interstice for passing through the sheets to be sealed, said interstice having an inlet section and an outlet section, the so...

A natural-resource-conservative, environmentally-friendly, cost-effective, leadless semiconductor packaging apparatus, having superior mechanical and electrical properties, and having an optional windowed housing which uniquely seals and provides a mechanism for viewing the internally packaged integrated semiconductor circuits (chips/die). A uniquely stamped and/or bent lead-frame is packaged by a...

The use of an intravascular cooling element to induce hypothermia in connection with a medical procedure. According to a first aspect of the present invention, a coronary bypass procedure is conducted in which a patient's blood is oxygenated with the patient's lungs and in which blood is circulated using the patient's heart or using an intracorporeal pump. The procedure preferably comprises: (a) p...

Disclosed is a system and method for stabilizing the carrier-envelope phase of the pulses emitted by a femtosecond mode-locked laser by using the powerful tools of frequency-domain laser stabilization. Control of the pulse-to-pulse carrier-envelope phases was confirmed using temporal cross correlation. This phase stabilization locks the absolute frequencies emitted by the laser, which is used to p...

A housing assembly forms a package for an electronic device. The housing assembly has the electronic device, an external carrier and a housing frame. A capillary-acting epoxy resin is filled into the assembled housing assembly via a filling-in opening and, on account of its capillary action, closes the interspaces between the semiconductor chip and the housing frame.

A hyperbranched macromolecule of polyester type comprising a central monomeric or polymeric nucleus and at least one generation of a branching chain extender having at least three reactive sites of which at least one is a hydroxyl or hydroxyalkyl substituted hydroxyl group and at least one is a carboxyl or terminal epoxide group. The nucleus is an epoxide compound having at least one reactive epox...

PROBLEM TO BE SOLVED: To provide an osteosynthesis device enabling an operator to inject an injection material into a bone detect part with an injection tube after an inner fixing member is fixed, avoiding a method of avoiding the inner fixing member which is an obstacle because of expansion of the exposed range on the side surface of a femur. SOLUTION: The osteosynthesis device comprises a bone s...

An external resonator type variable-wavelength LD light source which can compensate errors of a change in an oscillation wavelength caused by a change in an LD driving current, a change in the oscillation wavelength caused by a change in a temperature of an entire light source unit, a difference between set and actual wavelengths caused by mechanical factors to thereby ensure a wavelength reproduc...

An optical fiber laser arrangement (10) includes an optical fiber section (11) that has a solid waveguiding portion capable of guiding light along a longitudinal axis between longitudinally spaced ends thereof. The waveguiding portion is at least in part of a material that emits light in response to stimulation by light. A pumping laser (12) is used to launch stimulating light into the waveguiding...

The invention relates to an examination table for patients which is fixed at one end to a ceiling-mounted or floor-mounted support via a tilting device which allows the examination table to be tilted upwards or downwards in its longitudinal direction. In order to obtain an examination table which with relatively simple and therefore inexpensive means permits tilting about an imaginary axis which c...

The method and system disclosed in the publication relates to an improvement in measurement accuracy of a gas concentration sensor (1) such as capacitive humidity sensor (1), the method comprising the steps of measuring a parameter of the sensor (1), such as its resistance or capacitance, that is sensitive to the gas or its concentration being measured, and simultaneously changing the temperature ...

The invention provides a water processing unit (1) comprising a housing (2) enclosing a primary filter (3), a pair of secondary filters (4a, b) and a disinfection unit (5). Reclaimed water, such as rainwater or stream water, is fed into the unit (1) and into the primary filter (3). The primary filter (3) comprises a zero gravity filter having a series of coils (7) through which the input water flo...

A device for fabricating a high-density microarray for cDNA or protein having an arbitrary pattern comprises an electrospray part for electrostatically spraying solutions containing a plurality of kinds of biologically active samples one by one, a support part supporting sample chips on which samples in the solutions sprayed from the electrospray part are deposited, a mask part disposed between th...

An improved bio-filter system is presented for purifying potable water comprising locating at least one bio-filter structure upstream of a disinfecting unit in a potable water purifying plant and colonizing fermentation-raised bacteria on or within the at least one bio-filter structure and including the at least one bio-filter structure having the fermentation-raised bacteria. Improved potable wat...

The present invention relates to hyperbranched polyaspartate esters containing repeating structural units corresponding to the formula I and/or II (I) The present invention also relates to a process for the preparation of these hyperbranched polyaspartate esters by self condensing, via a transesterification reaction, at least a portion of the hydroxy and ester groups of the hydroxy as...

PCT No. PCT/AU95/00203 Sec. 371 Date Oct. 10, 1996 Sec. 102(e) Date Oct. 10, 1996 PCT Filed Apr. 11, 1995 PCT Pub. No. WO95/27684 PCT Pub. Date Oct. 19, 1995An apparatus and method for electrolytically treating water which includes one or more reactors. Each reactor has a liquid containing vessel and one or more pairs of electrodes. The electrodes are suitable for a continuous anodic or cathodic o...

The present invention relates, inter alia, to methodologies for the synthesis, screening and characterization of organometallic compounds and catalysts (e.g. homogeneous catalysts). The methods of the present invention provide for the combinatorial synthesis, screening and characterization of libraries of supported and unsupported organometallic compounds and catalysts (e.g. homogeneous catalysts)...