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Jakubowicz
Abram Jakubowicz, Ruschlikon CH
| Patent application number | Description | Published |
|---|---|---|
| 20100189152 | HIGH POWER SEMICONDUCTOR LASER DIODE - Semiconductor laser diodes, particularly broad area single emitter (BASE) laser diodes of high light output powers are commonly used in opto-electronics. Light output power and stability of such laser diodes are of crucial interest and any degradation during normal use is a significant disadvantage. The present invention concerns an improved design of such laser diodes, the improvement in particular significantly minimizing or avoiding (front) end section degradation at very high light output powers by controlling the current flow in the laser diode in a defined way. This is achieved by controlling the carrier injection, i.e. the injection current, into the laser diode in a novel way by creating single current injection points along the laser diode's longitudinal extension, e.g. along the waveguide. Further, the supply current/voltage of each single or group of current injection point(s) may be separately regulated, further enhancing controllability of the carrier injection. | 07-29-2010 |
| 20100220762 | HIGH POWER SEMICONDUCTOR OPTO-ELECTRONIC DEVICE - Semiconductor laser diodes, particularly broad area single emitter (BASE) laser diodes of high light output power, are commonly used in opto-electronics. Light output power and stability of such laser diodes are of crucial interest and any degradation during normal use is a significant disadvantage. The present invention concerns an improved design of such laser diodes, the improvement in particular significantly minimizing or avoiding degradation of such laser diodes at very high light output powers by controlling the current flow in the laser diode in a defined way. The minimization or avoidance of (front) end section degradation of such laser diodes significantly increases long-term stability compared to prior art designs. This is achieved by controlling the carrier injection into the laser diode in the vicinity of its facets in such a way that abrupt injection current peaks are avoided. To this, a current-blocking isolation layer ( | 09-02-2010 |
Agnieszka Jakubowicz, Los Gatos, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090215281 | HDP-CVD SION FILMS FOR GAP-FILL - The present invention pertains to methods of depositing low stress/high index multi-layer films on a substrate using an HDP-CVD process. The multi-layer films include two lining layers and a bulk gap-fill layer and the HDP-CVD process employs a reduced substrate bias power during deposition of at least the second lining layer. Deposition of the three layers occurs at reduced deposition temperatures which further reduces the stress of the multi-layer film. The lower stress results in less defectivity which improves the films ability to maintain optical confinement of radiation. | 08-27-2009 |
Raymond Jakubowicz, Rush, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20090093065 | ASPIRATING AND DISPENSING SMALL VOLUMES OF LIQUIDS - A metering device for aspirating and dispensing a liquid includes a housing; a pumping medium, preferably a gas containing chamber contained within the housing; a channel having a proximate end in fluid communication with the chamber and a distal end in fluid communication with an external environment; a heat or cold source providing a source of heat or cold to the gas containing chamber; and a temperature sensor for measuring the temperature inside the chamber. In a preferred embodiment, the device further includes a pressure sensor for measuring gas pressure inside the chamber, or multiple chambers. A method for aspirating and dispensing a liquid includes: providing a metering device for aspirating and dispensing a liquid that includes a housing; a gas containing chamber contained within the housing, the chamber; a channel having a proximate end in fluid communication with the chamber and a distal end in fluid communication with an external environment; a heat or cold source providing a source of heat or cold to the gas containing chamber; and a temperature sensor for measuring the temperature inside the chamber; providing a source of liquid to be aspirated; bringing the distal end of the channel into contact with the liquid; cooling the gas containing chamber with the heat or cold source to aspirate a first volume of liquid into the device; and heating the gas containing chamber to dispense a second volume of liquid out of the device. In a preferred embodiment, the metering device is a used in a diagnostic analyzer for determining the presence of one or more analytes in a sample. | 04-09-2009 |
Raymond F. Jakubowicz, Rush, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20090274348 | IMMUNODIAGNOSTIC TEST APPARATUS HAVING AT LEAST ONE IMAGER TO PROVIDE AGGLUTINATION EVALUATIONS DURING CENTRIFUGRATION CYCLE - An immunodiagnostic testing apparatus includes a centrifuge and an imager disposed in relation to the centrifuge wherein at least one image is captured of at least one test element in advance of a complete centrifugation period in order to provide predictive data concerning the presence of an agglutination reaction or failure mode of the apparatus or test element. | 11-05-2009 |
| 20100015726 | SINGLE COLUMN IMMUNOLOGICAL TEST ELEMENTS - A plurality of individual single column test elements are provided for use in a clinical testing apparatus. Each test element is defined by a single test column that includes a quantity of a test material, such as gel material or a bead matrix, including a cover strip used to access the contents of the test column. Individual test elements can be stored, retained and dispensed for testing patient samples. | 01-21-2010 |
Raymond Francis Jakubowicz, Rush, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20090186416 | DILUENT WELLS PRODUCED IN CARD FORMAT FOR IMMUNODIAGNOSTIC TESTING - An immunodiagnostic test card includes a flat planar member and at least one dilution chamber that is supported by the flat planar member. The at least one dilution chamber can be disposed adjacent chambers used for testing a patient sample that are provided on the immunodiagnostic test card or can be provided separately. | 07-23-2009 |