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Chang, MI
Byung J. Chang, Ann Arbor, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20100290115 | THROUGH-THE-LENS LOUPE ASSEMBLY WITH INTERPUPILLARY DISTANCE ADJUSTMENT - A medical/dental loupe assembly provides through-the-lens oculars with an inconspicuous interpupillary distance adjustment capability. The system includes a pair of lenses, each lens having a telemicroscopic ocular cemented therethrough, and an upper portion, one on each side of a wearer's nose. A generally horizontal slot is formed in the upper portion of one of the lenses, and a bridge member connects the upper portions of the two lenses. The bridge member has two ends, one end of which is coupled to the slot through a fastener that may be loosened and tightened, thereby allowing the distance between the oculars to be adjusted and locked into position in accordance with the interpupillary requirements of a user. | 11-18-2010 |
| 20110026258 | MEDICAL/DENTAL HEADLIGHT SYSTEM WITH INTERCHANGEABLE BEAM-FORMING OPTICS - A head-mounted light source particularly suited to medical and dental applications includes a base unit with a source of illumination directed through a distal opening in the base unit, and a plurality of interchangeable beam-forming units, each separately attachable to the distal opening of the base unit to produce a different light spot size at a given distance. The preferred embodiment includes a wide-field beam-forming unit, an intermediate beam-forming unit and a high-intensity beam-forming unit, such that the diameter of the spot size progressively decreases from the wide-field to the intermediate to the high-intensity unit. The interchangeable beam-forming units are attached to the base unit through a threaded connection. Each interchangeable beam-forming unit may itself include a distal threaded connection for attachment of a UV or other filter. In the preferred embodiment, the base unit includes a clip adapted for attachment to an ocular mounting assembly. | 02-03-2011 |
| 20110122598 | LED ILLUMINATOR WITH IMPROVED BEAM QUALITY - An improved illuminator with an adjustable beam pattern to be worn by medical and dental professionals includes a housing, a light-emitting diode (LED) disposed in the housing outputting light through a distal opening in the housing, an achromatic doublet lens mounted in the opening in the housing, and a singlet lens disposed between the LED and the achromatic lens. The distance between the singlet lens and the doublet lens may be adjustable, and/or distance between the LED and the singlet lens may be adjustable, through a threaded connections, for example. | 05-26-2011 |
| 20110305007 | LED ILLUMINATOR WITH IMPROVED BEAM QUALITY - An improved illuminator with an adjustable beam pattern to be worn by medical and dental professionals includes a housing, a light-emitting diode (LED) disposed in the housing outputting light through a distal opening in the housing, an achromatic doublet lens mounted in the opening in the housing, and a singlet lens disposed between the LED and the achromatic lens. The distance between the singlet lens and the doublet lens may be adjustable, and/or distance between the LED and the singlet lens may be adjustable, through a threaded connections, for example. In the preferred embodiment, the achromatic doublet lens, the singlet lens, or both the singlet and the doublet lens have a planar surface. | 12-15-2011 |
Byung Jin Chang, Ann Arbor, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20080204589 | CLIP-ON VIDEO CAMERA SYSTEM FOR MEDICAL, SURGICAL AND DENTAL APPLICATIONS - A video camera system includes a mount with a clip-on structure adapted for attachment to a pair of eyeglass frames, loupes, or a headband. The preferred embodiment includes a camera mounted on a first pivot arm, and a light source mounted on a second pivot arm. One or both of the pivot arms are rotatable, enabling the beam from the light source and field of view of the camera to be aligned for a given working distance. Polarizing filters may be mounted to the camera, light source, or both to control glare, reflection or other undesired visual artifacts. | 08-28-2008 |
| 20110013277 | LOW PROFILE OPTICAL MOUNTING ASSEMBLY - In an ocular support assembly material present in the forward-looking cross-section of the outwardly extending support arms is removed, thereby reducing visual obscuration and enhancing peripheral vision. In the preferred embodiment, the top of each outwardly extending support arm is at or below the middle of the height of the housing, thereby resulting in a low-profile design. At the same time, the support arms are received by the housing with sliding engagement on all sides, thereby eliminating the need for ball bearings or spacers to counteract twisting. The result is a lightweight yet highly stable ocular mounting assembly. | 01-20-2011 |
Cherng-Chi Chang, Troy, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20100030537 | METHODS AND SYSTEMS FOR PREDICTING VERY HIGH CYCLE FATIGUE PROPERTIES IN METAL ALLOYS - A system and method for predicting fatigue life in metal alloys for very high cycle fatigue applications. The system and method are especially useful for cast metal alloys, such as cast aluminum alloys, where a fatigue endurance limit is either non-existent or hard to discern. Fatigue properties, such as fatigue strength in the very high cycle fatigue region, are based on a modified random fatigue limit model, where the very high cycle fatigue strength and infinite life fatigue strength are refined to take into consideration the sizes of the discontinuities and microstructure constituents since the fatigue life scatter depends upon the presence of discontinuities and microstructure constituents. The sizes of the discontinuities and microstructure constituents that can initiate fatigue cracks can be determined with extreme value statistics, then input to the modified random fatigue limit model. | 02-04-2010 |
| 20100292966 | Methods of predicting residual stresses and distortion in quenched aluminum castings - Computational systems, methods, and articles of manufacture to predict at least one of residual stresses and distortion in quenched aluminum castings. Residual stresses and distortion may be predicted through incorporating thermal strains induced during quenching with the nonlinear constitutive behavior of quenched microstructures of a quenched aluminum casting, wherein thermal strains arise generally from non-uniform transient temperature distribution of the casting during quenching. The transient temperature distribution of the aluminum casting during quenching may be calculated based on heat transfer coefficients specific to one or more nodes, elements and/or zones on the surfaces of the aluminum casting. The nonlinear constitutive behavior of the quenched aluminum casting may be modeled as functions of temperatures, strain rates, and microstructure variations. A material constitutive model accounts for not only strain hardening and creep, but also precipitate hardening. Thereby, residual stresses and distortion in the quenched aluminum castings can be predicted using the embodiments. | 11-18-2010 |
| 20120041726 | METHOD FOR SIMULATING TRANSIENT HEAT TRANSFER AND TEMPERATURE DISTRIBUTION OF ALUMINUM CASTINGS DURING WATER QUENCHING - The invention relates to a method for estimating heat transfer during water quench of an aluminum part. The method includes: | 02-16-2012 |
Chuck Chang, Rochester, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20120055427 | CONTROL VALVE FOR A DEVICE FOR VARIABLY ADJUSTING THE CONTROL TIMES OF GAS-EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE - A control valve for a device to variably adjust control times of gas-exchange valves of an internal combustion engine. The control device has a valve housing and a control piston. The valve housing has an axial cavity with a dividing element arranged in the cavity that separates the cavity into two partial spaces and hydraulically seals the spaces from one another. The dividing element is produced separately from the valve housing and is positionally fixedly fastened in the cavity of the valve housing. The first partial space holds the control piston, and a supply connection is formed in the region of the first partial space. The second partial space has at least one first opening via which pressure medium can be supplied to the second partial space by a pressure medium pump, and at least one second opening by which the second partial space communicates with the supply connection. | 03-08-2012 |
Daniel Tien-Don Chang, Ann Arbor, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20110188586 | SCALABLE HIGH SPEED MIMO-SATELLITE COMMUNICATION SYSTEM - This invention provides satellite communication systems and methods that employ a satellite in MIMO communication with a geographically-distributed array of ground nodes. In an embodiment, the satellite communication system includes a MIMO satellite configured to receive first information at a higher bandwidth, process the first information into lower bandwidth signals, and relay the lower bandwidth signals using a satellite communication link. The geographically-separated ground nodes receive the lower bandwidth signals and transmit terrestrial signals using high-speed communication links. A central processing node receives the terrestrial signals over the high-speed communication links and combines the terrestrial signals to obtain the higher data rate signals. | 08-04-2011 |
David J. Chang, Troy, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20110231214 | AEROSPACE AND DEFENSE PROGRAM ANALYSIS TOOL - The invention provides automatically examines an Aerospace and Defense (A&D) company's financial data and evaluating factors affecting the company's value, and using this evaluation to assess the desirability of proposed changes in various stages of an A&D project. Specifically, the present invention evaluates changes in an A&D company's value through that company's profits and capital efficiency. The Program Profitability asset is a methodology and tool that helps teams quickly and systematically analyze high impact areas in the structure of a program to determine the key drivers of savings that are actionable for the client. | 09-22-2011 |
Eric E. Chang, Saint Joseph, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090193854 | MULTIPLE DIRECTIONAL CLUTCH FOR WASHING MACHINE - An automatic washing machine comprises a spin tube coupled to the basket and an agitator shaft coupled to an agitator mounted in the basket. A motor coupled to the agitator shaft applies a torque the agitator shaft and thereby the agitator in first and second torque directions. A clutch couples the spin tube to the agitator shaft for cooperative rotation of the basket and the agitator regardless of the rotational direction of the agitator shaft. Because of the dual directionality of the clutch, reversing the motor simultaneously dynamically brakes the basket and the agitator, thereby eliminating the need for a separate friction brake for the basket. | 08-06-2009 |
Fenglian Chang, Grand Blanc, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090260987 | METHOD OF MAKING GAS SENSOR ELEMENT, AND GAS SENSOR DERIVED THEREFROM - Disclosed herein is a method of making a gas sensor element, comprising calcining a NOx sensor electrode material at a NOx sensor electrode material calcination temperature of about 1200 to about 1600° C. to form a calcined NOx sensor electrode material, disposing the calcined NOx sensor electrode material on a substrate to form a substrate comprising a NOx sensor electrode, and firing the substrate comprising the NOx sensor electrode at a gas sensor element firing temperature to form a gas sensor element comprising a NOx sensor electrode. Also disclosed is a gas sensor comprising the gas sensor element. | 10-22-2009 |
| 20110020535 | SENSING ELEMENT AND METHOD OF MAKING THE SAME - Disclosed herein is a method of making a sensing element comprising forming an electrically conductive element, wherein the sensing element comprises a metal selected from the group consisting of Pd and alloys and combinations comprising Pd; and wherein the electrically conductive element is thermally stable at temperatures as high as 1,200° C. | 01-27-2011 |
Houng Yue Chang, Canton, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090106934 | Vehicle Closure Check Link - A check link for a closure of a vehicle pivotally connected to vehicle structure, and a method of operation, are disclosed. The check link may include a main rod having a first end pivotally engaging one of the vehicle structure and the closure, and an end cap fixed to an opposed second end. A support may be mounted on the other of the vehicle structure and the closure, with the main rod extending through the support. Also, a shock absorber is mounted to the support and located between the end cap and the support. The shock absorber is configured to absorb energy of motion of the closure when compressed between the end cap and the support. | 04-30-2009 |
| 20090230723 | VEHICLE CLOSURE ASSEMBLY WITH SHAPE MEMORY POLYMER SEAL - A closure assembly with a shape memory polymer seal is provided for use with a vehicle. The closure assembly includes a frame member configured for attachment to the vehicle body to selectively transition from a closed position to an open position. The seal structure includes a base portion elongated along and attached to a peripheral edge of the frame member or the vehicle body, and a flexible contact portion extending integrally from the base portion and configured for sealing communication with an opposing surface. A thermally-activated smart material (TASM), namely a shape memory polymer member, is disposed inside a cavity within the contact portion. A thermoelectric device is in thermal communication with the TASM, and is characterized by a thermal differential when current flows therethrough. The TASM is activated in response to the thermal differential of the thermoelectric device, thereby altering at least one physical property of the TASM. | 09-17-2009 |
| 20100019535 | Fuel Door Interlock for Vehicle Sliding Door - An interlock system for a vehicle body with a sliding door and a fuel fill door includes a housing, a first member, a second member, and a spring. The first member is mounted with respect to the housing, defines a cam portion, and is selectively rotatable with respect to the housing in a first direction from a retracted position to an extended position. The second member is mounted with respect to the housing and is selectively rotatable with respect to the housing in the first direction between a first position and a second position. The spring interconnects the first and second members such that movement of the second member from the first position to the second position causes the first member to move from the retracted position to the extended position. | 01-28-2010 |
| 20100276949 | Inertia Balanced Vehicle Outside Door Handle - A door handle assembly for use with a vehicle door comprising a door paddle including an actuation arm, supported to pivot about a first axis such that lateral acceleration of the paddle and actuation arm relative to the door produces a first moment about the first axis, and masses engaged with the actuation arm and supported to pivot about a second axis, the masses being arranged such that lateral acceleration of the masses relative to the door produces a second moment about the first axis that is substantially equal in magnitude and opposite in direction to the first moment. | 11-04-2010 |
Junseok Chang, Rochester Hills, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090084333 | METHOD AND APPARATUS FOR CONTINUOUSLY VARIABLE DIFFERENTIAL PHASING OF ENGINE VALVE OPERATION - An internal combustion engine includes a crankshaft and first and second cam actuated intake valves. A method for operating the engine includes providing a first intake cam configured to actuate the first cam actuated intake valve, and providing a second intake cam configured to actuate the second cam actuated intake valve. The second intake cam is phase adjustable relative to the crankshaft independently of the phase of the first intake cam relative to the crankshaft. A controller is provided and configured to selectively retard the phase of the second intake cam to effect later closing of the second cam actuated intake valve sufficiently to reduce the effective compression ratio of the engine. Additionally, the first intake cam may be phase adjustable relative to the crankshaft independently of the phase of the second intake cam relative to the crankshaft and the controller may additionally be configured to selectively advance the phase of the first intake cam to effect earlier opening of the first cam actuated intake valve sufficiently to increase internal exhaust gas recirculation. | 04-02-2009 |
| 20110088661 | COLD START SYSTEMS AND METHODS - A cylinder deactivation system comprises a fuel injection module and a cold start control module. The fuel injection module injects a desired amount of fuel into a cylinder of an engine during engine cranking. The cold start control module maintains an intake valve and an exhaust valve associated with the cylinder in respective closed positions while the desired amount of fuel is injected when at least one of an air temperature and a coolant temperature is less than a predetermined cold start temperature. | 04-21-2011 |
Peter Hon-You Chang, Sterling Heights, MI US
Qing Chang, Troy, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20100042455 | MODEL-BASED REAL-TIME COST ALLOCATION AND COST FLOW - A costing process that takes advantage of real-time information about plant floor activities and provides a more accurate and timely financial feedback about the process efficiencies in response to new changes in the process operation. The costing process includes identifying stations that consume resources, consume activities and supply activities. The costing process also identifies a plurality of resources that are provided to one or more of the stations. The costing process also includes identifying resources from the plurality of resources that are used as needed and resources that are supplied in advance of being used. The costing process allocates costs for each resource to each station that the resource supplies, including calculating a cost rate, calculating a cost of used capacity and calculating a cost of unused capacity. The costing process then determines the cost that each station and product uses based on the allocations. | 02-18-2010 |
Sam S. Chang, West Bloomfield, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090164551 | SMS AND PACKET DATA PERFORMANCE MONITORING - A system and method for monitoring data transfer performance between a central facility and a vehicle that includes calculating the message latency between the transmission and receipt of a message from a call center to the vehicle, or vice-versa. The information can be used to generate a latency map that is useful in diagnosing wireless system problems and in deciding when and how to communicate with a vehicle depending upon its location. | 06-25-2009 |
| 20090248222 | VEHICLE SLOWDOWN CONTROL VIA SHORT RANGE WIRELESS COMMUNICATION - A method and system for enabling police pursuing a vehicle to slow the vehicle down via short range wireless communication with the vehicle. The process can be carried out with or without involvement of a call center that provides telematics services to the vehicle. The method involves configuring the vehicle to accept a slowdown command, confirming the target vehicle at a pursuing police vehicle, establishing the short range connection between the police vehicle and target vehicle, and slowing the target vehicle by sending it the slowdown command over the wireless connection. The call center can enable or disable the slowdown service according to the vehicle owner's wishes. | 10-01-2009 |
Shengming Chang, Troy, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20110214640 | INTERNAL COMBUSTION ENGINE PORT DESIGN LAYOUT FOR ENHANCED IN-CYLINDER SWIRL GENERATION - An internal combustion engine includes a pair of adjacent cylinders, each one of the pair of adjacent cylinders includes a piston, a first intake valve, a second intake valve, a primary port associated with the first intake valve, and a secondary port associated with the second intake valve. Each of the ports is configured to provide a predominant direction of airflow therethrough during engine operation when viewed from above the cylinders and effectively oriented to provide respective in-cylinder air-swirl of opposite direction in each one of the pair of adjacent cylinders during an intake stroke of a respective piston. | 09-08-2011 |
Sun-Il Chang, Ann Arbor, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20110193633 | BIOAMPLIFIER FOR NEURAL INTERFACES - A bioamplifier that includes a high pass filter, open-loop amplifier, and low pass filter in an area efficient design that can be used in implantable neural interfaces. The high pass filter can be implemented by using a switch-capacitance resistor coupled with parasitic capacitance of the electrode. The amplifier can be chopper stabilized and can include a high gain, current-ratio first stage followed by one or more dimension-ratio stages. The low pass filter utilizes the output impedance of the open-loop amplifier to form an embedded g | 08-11-2011 |
Tien L. Chang, Troy, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090326711 | MULTI-ARM ROBOT SYSTEM INTERFERENCE CHECK VIA THREE DIMENSIONAL AUTOMATIC ZONES - A system and method for controlling avoiding collisions in a workcell containing multiple robots is provided. The system includes a sequence of instructions residing on a controller for execution thereon to perform an interference check automatic zone method. The interference check automatic zone method includes the steps of: determining a first portion of a common space that is occupied during a movement of a first robot along a first programmed path; determining a second portion of the common space that is occupied during a movement of a second robot along a second programmed path; comparing the first portion and the second portion to determine if an overlap exists therebetween; and moving the first robot and the second robot in response to whether or not the overlap exists. | 12-31-2009 |
Tim Chang, West Bloomfield, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090055078 | DIESEL TRANSIENT COMBUSTION CONTROL BASED ON INTAKE CABON DIOXIDE CONCENTRATION - An engine control module includes a target intake carbon dioxide (CO2) module that determines a target intake CO2 concentration. An intake CO2 estimation module estimates an actual intake CO2 concentration. The engine control module adjusts fuel injection based on the target intake CO2 concentration and the actual intake CO2 concentration. | 02-26-2009 |
| 20090056673 | DIESEL COMBUSTION MODE SWITCHING CONTROL BASED ON INTAKE CARBON DIOXIDE (CO2) CONCENTRATION - A method of switching a combustion mode of a diesel engine may include determining a carbon dioxide concentration in an intake manifold of a diesel engine, operating the diesel engine in a first combustion mode, and operating the diesel engine in a second combustion mode when the determined carbon dioxide concentration is greater than a predetermined carbon dioxide concentration value. | 03-05-2009 |
Tzyy-Shuh Chang, Ann Arbor, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090046923 | APPARATUS AND METHOD FOR DETECTING SURFACE DEFECTS ON A WORKPIECE SUCH AS A ROLLED/DRAWN METAL BAR - The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross-sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically cross-section reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured. A removable cassette includes various mirrors. A protection tube isolates the moving metal bar from the line light assembly and image acquisition camera. A contaminant reduction mechanism applies a vacuum to remove airborne contaminants. | 02-19-2009 |
| 20100109659 | SURFACE FLAW DETECTION AND VERIFICATION ON METAL BARS - An inspection system for detecting flaws on a moving metal (e.g., steel) bar coordinates the operation of an eddy current testing (ECT)-based flaw detection apparatus and an imaging-based flaw detection apparatus. The ECT-based flaw detection apparatus and the imaging-based flaw detection apparatus are disposed along a movement path in a predetermined relationship with each other, for example, as a predetermined fixed offset distance therebetween. A synchronizing mechanism synchronizes the output data streams from the two flaw detection apparatuses based on the predetermined relationship, so as to align the data streams as function of the axial position on the metal bar. A processing unit is configured to process the synchronized data streams for the detection of flaws, which are then also synchronized (axial position). The synchronization permits a variety of cross-referencing operations, such a flaw verification as to the existence of flaws, as well augmenting imaging-based flaws with flaw depth information from the ECT-based apparatus. | 05-06-2010 |
| 20110075159 | METHOD AND APPARATUS OF A PORTABLE IMAGING-BASED MEASUREMENT WITH SELF CALIBRATION - A portable imaging-based measurement device is developed to perform 2D projection based measurements on an object that is difficult or dangerous to access. This device is equipped with self calibration capability and built-in operating procedures to ensure proper imaging based measurement. | 03-31-2011 |
Xing Chang, Ann Arbor, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090325868 | Materials And Methods For FOXP3 Tumor Suppression - Provided herein are methods of treating a cancer in a subject comprising administering a FOXP3 protein, a nucleic acid encoding a FOXP3 protein, or an inducing compound which induces FOXP3 protein expression. Methods of altering a phenotype of a cancer cell or tumor cell, methods of inhibiting growth of such cells, and methods of inducing apoptosis of these cells are also provided herein. These methods comprise contacting the cell with a FOXP3 protein, a nucleic acid encoding a FOXP3 protein, or an inducing compound which induces FOXP3 protein expression. Further provided herein are diagnostic methods, comprising comparing the expression or structure of a FOXP3 protein or FOXP3 gene in a test sample to that of a normal or prior sample. A method of screening a test compound for anti-cancer activity comprising administering to cells the test compound and measuring FOXP3 protein or FOXP3 gene expression is moreover provided herein. | 12-31-2009 |