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Portfolio

Examples of prepared patent applications:

This invention provides an effective and a method of laser processing for separating semiconductor devices formed on a single substrate or separating high thickness, hard and solid substrates, which is rapid. During preparation of the device or substrate for the cleaving/breaking/dicing procedure an area of damage is achieved by obtaining deep and narrow damage area along the intended line of cleaving. The laser processing method comprises a step of modifying a pulsed laser beam by an focusing unit, such as that an "spike"-shaped beam convergence zone, more particularly an above workpiece material optical damage threshold fluence (power distribution) in the bulk of the workpiece is produced. During the aforementioned step a modified area (having a "spike"-type shape) is created. The laser processing method further comprises a step of creating a number of such damage structures in a predetermined breaking line by relative translation of the workpiece relative the laser beam condensation point (link to a patent application).
This invention provides an effective and rapid method of laser processing for separating semiconductor devices formed on hard and solid substrates (6) with a one pass process. The method is based on generating fractures along the scribing trajectory which extend deep into the bulk of a workpiece (6), wherein thermal stress is induced by delivering at least two processing (ultra short pulse) pulsed-beams (7), containing at least primary and secondary pulses. Primary pulses are used to generate a heat accumulated zone, which allows for more efficient absorption of the secondary pulses, which generate a sufficient heat gradient to produce mechanical failures, necessary for mechanically separating the workpiece (6) into separate pieces (link to a patent application).
A plasmonic sensor, having at least a substrate (1), a laser processed active surface area (2) on the said substrate, and a metal coating on the activate surface (2), where the laser processed surface is fabricated by means of short laser pulses in such a way that in a shallow layer of the surface material, the viscosity is reduced and under the influence of the same pulse, which was used to reduce the viscosity, or a successive incident one or more pulses a self-organized, stochastic nanostructure is formed, which has features smaller than 1 μm. In the most preferred embodiment, the substrate material is amorphous, such as soda-lime glass or similar. Also this invention discloses the use of a slide or a slip cover, which are used in microscopy, for forming the active sensor area (2) on top surface of it. (link to a patent applicationmore)
A fish finder system, comprising a sonar gadget, which communicates with a display device via digital wireless communication. The system contains a software product, which runs both on the sonar gadget and the display device, wherein the gadget part of the software is preferably adapted to run on an embedded microcontroller system and the user display device part of the software is preferably a downloadable application adapted to run on portable communication devices, such as smart phones, tablet computers, laptops or the like. Said display device part of the software is adapted not only to visualize the obstacles with indication of depth, size and movement, but also provide additional functionality, such as access to a camera device, digital maps and GPS, social network accounts, weather information and forecast, calendar with notes, information on moon phases and other kinds of information found on the Internet. Both software parts allow update functionality. (link to a patent application)
This invention provides a solution for artistic expression of acoustic information by employing an acoustic visualization system, comprising a sound receiving device, such as microphone, a display and, optionally, an information storage device, e.g. network based server. Said sound receiving and information storage devices are connected preferably through mobile/internet networks. Said sound receiving device and the display are preferably integrated into a user terminal having information processing capability, e.g. smart phone, tablet computer or similar device. The user terminal has a software product installed. Said software application features several conditional options for selecting from several types of containers, colors of illumination and several types of medium, used in the virtual acoustic visualization system. A distinct vibrational pattern is simulated according to analyzed acoustic information and conditional options. Another method for creating vibrational pattern comprises the steps of analyzing received acoustic information, picking out the most appropriate visual data from an information storage device, which stores a database of vibrational patterns, sending the image to the information processing device and optionally applying desired visual effects. Received acoustic information is preferably a verbal phrase and phonetic elements are words or syllables. (link to a patent application)
This invention provides a solution for an artistic visualization of acoustic waves, employing an acoustic imaging system, which comprises a sound receiving device, an information processing device, an amplifier, a vibrational device, a container with a liquid or friable medium and an imaging device. Sound receiving device either encodes the variable acoustic information to a digital signal and transfers it to the information processing device or translates it to an analog signal and transfers it through an analog line. The information processing device is arranged to separate input acoustic information into phonetic elements which are later visualized. Said sound receiving and information processing devices are adapted to communicate through mobile communication or internet networks or through a simple wire connection. Digital or analog signal is sent to the vibrational device which oscillates upon the actuation of the input signal and produces acoustic waves as an output. Acoustic waves induce the formation of the vibratory pattern on the surface of the liquid or friable medium. The vibrational pattern is then captured by the imaging device and shown live on the display, broadcasted or multi-layer pictures are created and printed or stored in USB, CD or another data storage unit, or transferred to the user by means of data communication networks. Variable acoustic information is preferably a verbal phrase and phonetic elements are words or syllables. (link to a patent application) 
An object of the present invention is to provide a laser source capable of simultaneously generating several wavelength radiation at desired power ratio between each other. Said radiation of two or more wavelengths can be used for mixing of said wavelengths in a non-linear optical media in order to achieve different wavelength radiation than those amplified in the gain media. In the most preferred embodiment, a laser source comprises a dispersive optical element, placed in an optical cavity, having a single optical axis. The dispersive element causes different wavelength radiation to travel in slightly different optical paths through the dispersive element. Tuning of the laser is performed by moving or tilting the dispersive element with respect to the axis of the cavity. As a result, desired ratio or proportions of average power are achieved for each of said wavelengths. Having the ability to change the power ratio is important for achieving simultaneous generation of several wavelengths in a single gain media, thus avoiding depletion of the exited state by the dominant wavelength. (link to a patent application) 
A construction element of buildings (1), best represented in Fig. 1, intended for transferring loads from additional (5) to the load bearing (6) structures of the building and providing a gap in between for thermal isolation purposes, without creating a thermal bridge. This construction element (1) is made of glass fiber composite, which is manufactured by pultrusion and possesses good specific mechanical and thermal isolation properties, compared to the conventional materials used in the buildings. The fibers (2) of the composite of this construction element are perpendicular to the axis of torque that is acting on it, this torque arising from the forces that act on the additional structures (5). The construction element (1) also features holes (3) or different mounting points to be connected to other construction elements (5, 6, 8, 9). (link to a patent application) 
A hydromechanical heat generator that is designed to heat a fluid by facilitating the appearance of a turbulent vortex inside a working fluid, where heating occurs due to a process of continuous cavitation. The hydromechanical heat generator comprises a housing assembly (1-3), preferably cast, having at least three interconnecting chambers (4-6), whereas one chamber is a hopper, funnel or a similarly shaped fluid inflow chamber (4) with at least one fluid inflow inlet (7), the second chamber is the heating chamber (5) arranged with a multiple smooth disk (8) rotor (8-10), mounted on an axis, fitted with a special tip (10) for controlling the currents forming above central part of the rotor, which in turn is coupled with an actuator (12), the third chamber is an outflow chamber (6) arranged with at least one fluid outflow holes or nozzles (outlets) (13). The generator is arranged is such a way that it can accommodate rotational movement of a liquid leading to formation of toroidal vortices characterized in the rational movement along the perimeter of the torus and around the axis of symmetry and controlled appearance of cavitation bubbles that are responsible for heating the liquid. (link to a patent application) 
This invention provides a solution for operating a mode-locking and cavity dumping laser apparatus using single electro-optical switch or modulator (2), such as a Pockels cell, without the need of multiplexing between two sources of voltage. The complex waveform of electrical signal, which controls the Pockels Cell (2) is achieved by employing the phenomena, called LC circuit ringing, where LC circuit is formed from an inductive element and a capacitor, where the Pockels Cell works as a capacitor itself. The ringing frequency should be calculated such that the period of oscillations is preferably two times longer than the round-trip time of a light pulse inside the optical cavity. As a result, optical losses are created inside the cavity with a period, which coincides with the travel of a light pulse, thus the pulse build-up is consistent and stable. (link to a patent applicationre) 
An object of the present invention is to provide a laser source capable of simultaneously generating several wavelength radiation at desired power ratio between each other. Said radiation of two or more wavelengths can be used for mixing of said wavelengths in a non-linear optical media in order to achieve different wavelength radiation than those amplified in the gain media. In the most preferred embodiment, a laser source comprises a dispersive optical unit (5), placed in an optical cavity, having a single optical axis. The dispersive unit is used for spatial separation of different wavelength radiation into two essentially parallel beams (8, 9) to the one side, and matching of said beams into essentially a single beam (10) to the other side with respect to the dispersive unit (5). It is arranged such that two parallel beams propagate through the gain medium (3) and the matched beam (10) falls perpendicularly into an end mirror (7) of the optical cavity. The amplification ratio between several wavelength laser radiation is set either by moving the pump beam in transverse direction between areas of said parallel beams (8, 9) or by adjusting the aperture (6) in the region of the matched beam (10). (link to a patent application) 
Apparatus for homogenization of emission spectra of a gain medium in laser systems, comprising at least an optical arrangement for spatially dispersing spectral components like prisms (18) or gratings (19), a passive selective attenuator (4), which is arranged in the path of a spatially displaced spectral components so that it could induce selective attenuation for spectral components having highest gain and largest amplification. Said passive selective attenuator comprises material featuring non-linear optical attenuation, such as multi- photon absorption, frequency conversion, Kerr-effect or similar. Said selective attenuator selectively attenuates those spatially displaced spectral components, having highest gain in the emission spectra of a gain medium, thus increasing the usable bandwidth. The passive attenuator may be a GaN specimen. (link to a patent application) 

Examples of registered designs:

      (RCD No. 003335595-0001) 
     (RCD No. 003368463-0001) 
    (International registration No.DM/093 177) 

Examples of registered trade marks:

    (European Union trade mark No. 015154289) 
     (European Union trade mark No. 015243074)
     (European Union trade mark No. 015418304)
     (European Union trade mark No. 015733281)

Samples of our technical writings: