Liu, Arcadia
Amy Liu, Arcadia, CA US
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20150025568 | TWO-HAND ADJUSTABLE ACUPRESSURE METHOD AND APPARATUS - Acupressure apparatus and method that relieves muscle knots and tightness in a user's back by means of an acupressure ball which is threaded two ends by a cord, the cord being both flexible and stretchable. The ball is adjustable along the cord and can be set at a fixed position along the length of the cord using two anchors around the holes where the ball is threaded through. The user grasps the apparatus at each end of the cord and the apparatus can be positioned at the desired spot on a user's back by any of a combination of adjusting the user's hands, arms, and the position of the ball along the cord while the user is grasping the acupressure apparatus. The user's body weight applied on the ball against a rigid surface will apply acupressure therapy. | 01-22-2015 |
Joanna Yi-Ching Liu, Arcadia, CA US
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20100010071 | Compositions and use of EPAS1 inhibitors - The present invention relates to inhibitors of endothelial PAS domain protein 1 (EPAS1), and methods and compositions related to the EPAS1 inhibitors. In certain embodiments, the EPAS1 inhibitors include nucleic acids, such as for example siRNAs. | 01-14-2010 |
Kanon Liu, Arcadia, CA US
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20090108942 | Low noise, low power and high bandwidth capacitive feedback trans-impedance amplifier with differential fet input and bipolar emitter follower feedback - A differential amplifier topology includes circuitry to create a higher bandwidth output using less current than an existing Capacitive Trans-Impedance Amplifier (CTIA) using an all Field Effect Transistor (FET) circuit design. A bipolar npn emitter follower in the circuit topology provides low output impedance and some degree of output inductive peaking, and the CTIA differential output is buffered by the bipolar npn emitter follower in the CTIA feedback loop such as the open-loop high voltage gain is maintained without being affected by output loads. | 04-30-2009 |
20130009711 | READ OUT INTEGRATED CIRCUIT - According to one embodiment, a circuit comprises a Capacitive Trans-Impedance Amplifier (CTIA) configured to receive a current pulse at an input and convert the current pulse to a voltage step. The voltage step is directed to a first signal path and a second signal path. When the voltage step exceeds a first threshold, the first signal path directs an enable pulse to the second signal path. The second signal path generates an output pulse when the voltage step exceeds a second threshold and the enable pulse is enabled. The second signal path comprises a first, a second, and a third amplifier to increase detection of the voltage step by the second signal path. | 01-10-2013 |
20140062602 | READ OUT INTEGRATED CIRCUIT - According to one embodiment, a circuit comprises a Capacitive Trans-Impedance Amplifier (CTIA) configured to receive a current pulse at an input and convert the current pulse to a voltage step. The voltage step is directed to a first signal path and a second signal path. When the voltage step exceeds a first threshold, the first signal path directs an enable pulse to the second signal path. The second signal path generates an output pulse when the voltage step exceeds a second threshold and the enable pulse is enabled. The second signal path comprises a first, a second, and a third amplifier to increase detection of the voltage step by the second signal path. | 03-06-2014 |
Shaiw-Rong Scott Liu, Arcadia, CA US
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20080257107 | Compositions of Hardmetal Materials with Novel Binders - Hardmetal compositions each including hard particles having a first material and a binder matrix having a second, different material comprising rhenium or a Ni-based superalloy. A two-step sintering process may be used to fabricate such hardmetals at relatively low sintering temperatures in the solid-state phase to produce substantially fully-densified hardmetals. | 10-23-2008 |
20100180514 | High-Performance Hardmetal Materials - Hardmetal compositions each including hard particles having a first material and a binder matrix having a second, different material comprising rhenium or a Ni-based superalloy. Tungsten may also be used a binder matrix material. A two-step sintering process may be used to fabricate such hardmetals at relatively low sintering temperatures in the solid-state phase to produce substantially fully-densified hardmetals. A hardmetal coating or structure may be formed on a surface by using a thermal spray method. | 07-22-2010 |
20110023745 | KINETIC ENERGY PENETRATOR - A kinetic energy penetrator includes an elongated main body, a conical tip joined to the main body at the front end thereof, and fins located at the tail end of the main body. The tip is made of a hardmetal material which comprises hard particles including a first material and a binder matrix including a second, different material. A volume of the second material is from 3% to 40% of total volume of the hardmetal material. The hard particles include carbides, nitrides, carbonitrides, or borides, or combinations thereof. The binder matrix includes Re, a Ni-base superalloy, Ni, Co, W, Ta, or Mo, or combinations thereof. The main body is made of a high density metal or alloy (Density>16.0 g/cc), such as pure W, W—Re alloy, W—Mo alloy, W—Mo—Re alloy, W—Ni alloy, W—Co alloy, W—Ni—Fe alloy, W—Ni—Co—Fe alloy, depleted U. | 02-03-2011 |
Xiaolei Liu, Arcadia, CA US
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20130036592 | MEMS Deployment Flexures - A flexure assembly can have a stage that is deployed to a desired position by attachment of the flexure assembly to a housing. For example, a frame can be configured to be held in position by one portion of the housing and a deployment pad can be configured to be held in position by another portion of the housing. A deployment flexure can be configured to facilitate positioning of the frame and the deployment pad out-of-plane with respect to one another. The deployment flexure and a motion control flexure can facilitate movement of the stage with respect to the housing. In this manner, the position of the stage and the preload of the stage are determined by the housing. | 02-14-2013 |
20130053101 | Video Mode Hidden Autofocus - A method and system for hiding objectionable frames during autofocusing are disclosed. A personal electronic device such as a cameral telephone can have two cameras that have overlapping fields of view. One camera can provide imaging. The other camera can facilitate autofocusing in a manner wherein images produced thereby are not viewed by a user. Because the autofocus frames are hidden, the user is not distracted or annoying thereby. | 02-28-2013 |
20130215325 | ARCUATE MOTION CONTROL IN ELECTROSTATIC ACTUATORS - In one embodiment, an actuator includes a moving frame coupled to a fixed frame by a plurality of elongated parallel motion flexures for generally parallel motion relative to the fixed frame and between an as-fabricated position and a deployed position. The flexures are disposed at a first angle relative to a line extending perpendicularly to both the moving frame and the fixed frame when the moving frame is disposed in the as-fabricated position, and at a second angle relative to that same line when the moving frame is disposed in the deployed position, Arcuate movement of the first frame relative to the second frame is controlled by constraining the first angle to a value of less than about half of the sum of the first and second angles. | 08-22-2013 |
20130278108 | MEMS SHOCK CUSHION SPRING SYSTEMS AND METHODS - Techniques are disclosed for systems and methods to provide shock impact mitigation for MEMS structures. A MEMS structure may include one or more actuators. An actuator may include a first frame having a spine, where the spine includes a body and a tip. The actuator may include a second frame connected to the first frame and including a shock stop, where the shock stop includes a surface in proximity to the spine tip. An actuator may include a shock cushion spring fixed relative to the spine tip and situated substantially between the spine tip and the shock stop surface, where the shock cushion spring is adapted to protect the spine tip from contact with the shock stop surface. | 10-24-2013 |
20130279030 | MINIATURE MEMS ACTUATOR ASSEMBLIES - In one embodiment, an electrostatic actuator includes a generally planar fixed frame, a generally planar moving frame coupled to the fixed frame by a flexure for substantially coplanar, perpendicular movement relative to the fixed frame, a plurality of interdigitated teeth, a fixed portion of which is attached to the fixed frame and a moving portion of which is attached to the moving frame, and an elongated output shaft having opposite input and output ends, the input end being coupled to the moving frame. | 10-24-2013 |
20150070793 | MINIATURE MEMS ACTUATOR ASSEMBLIES - In one embodiment, an electrostatic actuator includes a generally planar fixed frame, a generally planar moving frame coupled to the fixed frame by a flexure for substantially coplanar, perpendicular movement relative to the fixed frame, a plurality of interdigitated teeth, a fixed portion of which is attached to the fixed frame and a moving portion of which is attached to the moving frame, and an elongated output shaft having opposite input and output ends, the input end being coupled to the moving frame. | 03-12-2015 |
Xing-Quan Liu, Arcadia, CA US
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20120273042 | METHOD FOR IMPROVING THE QUALITY OF A TUNNEL JUNCTION IN A SOLAR CELL STRUCTURE - A method of forming a tunnel junction in a solar cell structure alternates between depositing a Group III material and depositing a Group V material on the solar cell structure. | 11-01-2012 |
20130074934 | MULTI-LAYER BACK SURFACE FIELD LAYER IN A SOLAR CELL STRUCTURE - Photovoltaic (PV) cell structures are disclosed. In one example embodiment, a PV cell includes an emitter layer, a base layer adjacent to the emitter layer, and a back surface field (BSF) layer adjacent to the base layer. The BSF layer includes a first layer, and a second layer adjacent to the first layer. The first layer includes a first material and the second layer includes a second material different than the first material. | 03-28-2013 |
20130220407 | Solar Cell with Delta Doping Layer - A solar cell including a base region, a back surface field layer and a delta doping layer positioned between the base region and the back surface field layer. | 08-29-2013 |
20140261611 | SOLAR CELL STRUCTURES FOR IMPROVED CURRENT GENERATION AND COLLECTION - In one aspect, optoelectronic devices are described herein. In some implementations, an optoelectronic device comprises a photovoltaic cell. The photovoltaic cell comprises a space-charge region, a quasi-neutral region, and a low bandgap absorber region (LBAR) layer or an improved transport (IT) layer at least partially positioned in the quasi-neutral region of the cell. | 09-18-2014 |
20140305498 | OPTOELECTRIC DEVICES COMPRISING HYBRID METAMORPHIC BUFFER LAYERS - In one aspect, semiconductor structures are described herein. A semiconductor structure, in some implementations, comprises a first semiconductor layer having a first bandgap and a first lattice constant and a second semiconductor layer having a second bandgap and a second lattice constant. The second lattice constant is lower than the first lattice constant. Additionally, a transparent metamorphic buffer layer is disposed between the first semiconductor layer and the second semiconductor layer. The buffer layer has a constant or substantially constant bandgap and a varying lattice constant. The varying lattice constant is matched to the first lattice constant adjacent the first semiconductor layer and matched to the second lattice constant adjacent the second semiconductor layer. The buffer layer comprises a first portion comprising Al | 10-16-2014 |
Yenbou Liu, Arcadia, CA US
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20130005594 | METHODS AND COMPOSITIONS FOR DETECTING TARGET NUCLEIC ACIDS - The present invention provides compositions, apparatuses and methods for detecting one or more nucleic acid targets present in a sample. Methods of the invention include utilizing two or more ligation probes that reversibly bind a target nucleic acid in close proximity to each other and possess complementary reactive ligation moieties. When such probes have bound to the target in the proper orientation, they are able to undergo a spontaneous chemical ligation reaction that yields a ligation product that is directly detected or that is amplified to produce amplicons that are then detected. The present invention also provides methods to stabilize sample RNA so that degradation does not significantly affect the results of the analysis. | 01-03-2013 |
20140171338 | METHODS AND COMPOSITIONS FOR DETECTING TARGET NUCLEIC ACIDS - The present invention provides compositions, apparatuses and methods for detecting one or more nucleic acid targets present in a sample. Methods of the invention include utilizing two or more ligation probes that reversibly bind a target nucleic acid in close proximity to each other and possess complementary reactive ligation moieties. When such probes have bound to the target in the proper orientation, they are able to undergo a spontaneous chemical ligation reaction that yields a ligation product that is directly detected or that is amplified to produce amplicons that are then detected. The present invention also provides methods to stabilize sample RNA so that degradation does not significantly affect the results of the analysis. | 06-19-2014 |