Dholakia
Ajay Dholakia, Gattikon CH
Patent application number | Description | Published |
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20080304379 | Writing and Reading of Data in Probe-Based Data Storage Devices - Methods and apparatus are provided for controlling writing and reading of data in an array of A storage fields of a probe-based data storage device in which data is written to and read from the array of storage fields by a corresponding array of probes. One method uses the concept of sub-arrays to provide variable-rate read/write operation. Input data blocks are received for writing to the A-field array, each input data block being writable in A/k | 12-11-2008 |
20090089645 | DATA STORAGE SYSTEMS - Method and apparatus for decoding data in a data storage system. In operation, a detector generates an output bit stream in dependence on a data block received from a storage subsystem of the data storage system. A post processor connected to the detector generates a first error corrected bit stream in dependence on the output bit stream and the data block. An error correction decoder connected to the post processor generates a second error corrected bit stream in dependence on the first error corrected bit stream and also generates a checksum in dependence of the second error corrected bit stream. A feedback path supplies from the error correction decoder to the post processor pinning data indicative of locations of correct bits in the second error corrected bit stream in the event that the checksum is indicative of errors in the second error corrected bit stream and the second error corrected bit stream comprises at least one correct interleave. The post processor regenerates the first error corrected bit stream in dependence on the pinning data received from the error correction decoder. | 04-02-2009 |
Kishan Dholakia, North Haugh St Andrews GB
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20140239149 | CONTROLLING LIGHT TRANSMISSION THROUGH A MEDIUM - Methods for controlling light transmission through a medium by transmitting light from a single spatial portion of an input optical field through the medium creating an output optical field, superposing the output optical field with a reference optical field creating an optical interference field, detecting an intensity of a spatial portion of a polarization component of the optical interference field and using the detected intensity to determine a value of an optical field amplitude and of an optical field phase for each of a plurality of spatial portions of the input optical field and for each of first and second orthogonal input polarization states of transmitted light entering the medium. The method may be used in the control of the transmission of light 1) through a medium, which is randomizing in amplitude, phase and/or polarization or 2) through a multi-mode fiber or for beam shaping, optical trapping and/or optical manipulation. | 08-28-2014 |
Kishan Dholakia, Glasgow GB
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20080274529 | Photoporation Of Cells - An opening is formed in a cell using laser radiation. A Bessel beam is formed using the laser radiation and the Bessel beam is directed onto the cell to form an opening. The guiding of material towards the opening may be involved using optical trapping/manipulation. The material may change cellular function or analyse cell behaviour. Both pulsed laser radiation and continuous wave radiation may be formed using the same laser. | 11-06-2008 |
Kishan Dholakia, St Andrews, Fife GB
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20130222799 | WAVEGUIDE LOCALIZED RAMAN SPECTROSCOPY - A Raman spectroscopic detection device comprising at least one microfluidic sample channel; at least one excitation waveguide for exciting a Raman signal and at least one collection waveguide for collecting a Raman signal. The output of the excitation waveguide and the input of the collection waveguide are positioned directly in the microfluidic sample channel. | 08-29-2013 |
Kishan Dholakia, Fife GB
Patent application number | Description | Published |
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20100014078 | RAMAN SPECTROSCOPY - A micro-fluidic system comprising means for optically trapping a particle and a Raman excitation source for causing Raman scatter from the particle whilst it is in the optical trap. | 01-21-2010 |
20100032555 | Acousto-Optic Sorting - A method for sorting particles in a fluid. The method involves generating an optical landscape using an acousto-optic device. Preferably, the optical landscape is arranged to sort particles based on size or refractive index or shape. | 02-11-2010 |
20100047761 | CAPILLARY TRANSPORT - A method for sorting particles, in particular cells A and B. The method uses a single channel with only one input and only one output. A particle mix A and B in a fluid is introduced into the channel and particles within the channel are sorted. | 02-25-2010 |
20100328657 | Enhanced Spectroscopic Techniques Using Spatial Beam Shaping - A Raman spectrometer comprising means for illuminating a sample with a shaped laser beam and a detector that is operable to detect light that is reflected from or transmitted through a sample. Preferably, the shaped laser beam has a dark spot at its centre. | 12-30-2010 |
Kishan Dholakia, St. Andrews GB
Patent application number | Description | Published |
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20080279558 | METHOD & APPARATUS FOR CLEARING AN OPTICAL CHANNEL - A method and apparatus for clearing an optical channel for transmitting data through free space between a first and second location includes a light beam, wherein the light beam has a spatially and/or time-dependent modulated intensity profile, and is substantially collimated so that the intensity profile is conserved over a specified distance of operation. The light beam includes a cross-sectional profile having regions of low and high intensity, portions of which are provided for the transmission of an optical data signal. A light source wavelength and intensity are selected for types of obscurant particles having optical properties whereby the radiation pressure acts on the particles, and the particles may then be either attracted into or repelled from portions of the spatially modulated optical beam, leaving certain portions of the optical channel beam absent of obscurant particles, thereby enabling transmission of optical data through the cleared optical channel with low attenuation. | 11-13-2008 |
20110133104 | OPTICAL MANIPULATION OF MICRO-PARTICLES - A method for manipulating one or more particles comprising exposing the particle(s) to a beam of radiation that is able to lift and or impart an acceleration to the particle(s) to cause it to move in a curved trajectory. | 06-09-2011 |
20120075627 | FIBER PROBE BASED MICROFLUDIC RAMAN SPECTROSCOPY - A microfluidic device comprising at least one microfluidic channel with an input and an output for allowing fluid flow; and at least one Raman fiber based probe having an excitation fiber probe and/or a collection fiber probe positioned so that one end of the probe is in the microfluidic channel. | 03-29-2012 |
20120134682 | METHOD AND APPARATUS FOR CLEARING AN OPTICAL CHANNEL - A method and apparatus for clearing an optical channel for transmitting data through free space between a first and second location includes a light beam, wherein the light beam has a spatially and/or time-dependent modulated intensity profile, and is substantially collimated so that the intensity profile is conserved over a specified distance of operation. The light beam includes a cross-sectional profile having regions of low and high intensity, portions of which are provided for the transmission of an optical data signal. A light source wavelength and intensity are selected for types of obscurant particles having optical properties whereby the radiation pressure acts on the particles, and the particles may then be either attracted into or repelled from portions of the spatially modulated optical beam, leaving certain portions of the optical channel beam absent of obscurant particles, thereby enabling transmission of optical data through the cleared optical channel with low attenuation. | 05-31-2012 |
20130107273 | OPTICAL COHERENCE TOMOGRAPHY | 05-02-2013 |
20130113140 | CELL PORATION - A method for porating one or more cells comprising positioning a particle near each cell; and causing laser-induced breakdown of the particle to create one or more cavitations, wherein the cavitation(s) causes poration of the cell. | 05-09-2013 |
20130164828 | OPTICAL TRANSFECTION - An integrated fibre based device for transfecting material into a cell comprising an optical fiber that has a lens formed at its end for directing light to a surface of the cell, and a channel for delivery of the material for transfection into the cell. | 06-27-2013 |
20130173194 | OPTICAL EIGENMODE IMAGING - A method of optimising at least one measure that is a quadratic function of a wavefunction, such as the spot size of a laser, the method comprising: superimposing a plurality of wavefunctions; determining a relationship between the superimposed wavefunctions and the quadratic measure, and using the determined relationship to identify the superimposed wavefunctions that provide a desired or optimised quadratic measure. | 07-04-2013 |
20140073027 | MICROFLUIDIC PHOTOPORATION - A cell permeabilizing micro fluidic system for permeabilizing one or more cells in a fluid flow. The system has a micro fluidic channel for channeling at least one cell in a fluid flow and an optical source for generating a beam of light for permeabilizing the at least one cell, wherein the channel and the source are arranged so that the light beam and fluid flow are collinear in a permeabilization part of the channel and cells are permeabilized within the permeabilization part. | 03-13-2014 |
20150029325 | HIGH RESOLUTION IMAGING OF EXTENDED VOLUMES - A light sheet optical system comprising means for forming a light sheet using a non-diffractive or quasi non-diffractive and/or propagation invariant beam that has an asymmetric intensity beam profile transverse to the direction of propagation, such as an Airy beam. | 01-29-2015 |
Parind Dholakia, Gujarat IN
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20100204268 | PROCESSES FOR PREPARING DIFFERENT FORMS OF (S)-(+)-CLOPIDOGREL BISULFATE - The invention provides improved processes for the preparation of hydrated form of (S)-(+)-Clopidogrel bisulfate as well as improved processes for the preparation of form-I and form-II of (S)-(+)-Clopidogrel bisulfate. | 08-12-2010 |
Parind Narendra Dholakia, Ahmedabad IN
Patent application number | Description | Published |
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20100016595 | PROCESS FOR PREPARING (S)-(+)-CLOPIDOGREL BASE AND ITS SALTS - Processes for the preparation of Methyl (+)-(S)-(2-chlorophenyl)-(6,7dihydro-4H-thieno[3,2-c]pyridin-5-yl)acetate [Clopidogrel base, (I)] and their various pharmaceutically acceptable salts. | 01-21-2010 |
20100081824 | Processes For the preparation of different forms of (S)-(+)-Clopidogrel besylate - Improved processes for the preparation of different forms of (S)-(+)-Clopidogrel besylate, pharmaceutical compositions containing them and their use in medicine. | 04-01-2010 |
Parind Narendra Dholakia, Gujarat IN
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20080234323 | Amorphous and Three Crystalline Forms of Rimonabant Hydrochloride - The present invention describes novel forms of Rimonabant hydrochloride, processes for their preparation and pharmaceutical compositions containing them. Thus, the present invention discloses three new crystalline forms designated as Form II, Form III and Form IV of Rimonabant hydrochloride and novel amorphous forms of the salt. | 09-25-2008 |
20090221827 | PROCESSES FOR THE PREPARATION OF DIFFERENT FORMS OF (S)-(+)-CLOPIDOGREL BESYLATE - Disclosed herein are the improved processes for the preparation of different forms of (S)-(+)-Clopidogrel besylate, pharmaceutical compositions containing them and their use in medicine. | 09-03-2009 |