Patents by Inventor Richard A. Wahl
Richard A. Wahl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11886095Abstract: A scalable independent unit cell device architecture may include a phase-shifting element and a phase shift driver both integrated within the unit cell device. The phase shift driver may be coupled to the phase-shifting element and the phase shift driver may independently control the phase-shifting element to produce an optical beam having a desired phase. The unit cell device may further include an optical antenna that outputs the beam having the desired phase. The unit cell device may be formed as an opto-electronic hybrid optimized to leverage direct bond hybridization (DBH) to attach an electronic integrated circuit wafer to a side of a photonic integrated circuit wafer. The resulting unit cell device (i.e., 24 microns) may tightly integrate individual element-level phase control, which may be implemented within large-scale two-dimensional photonic arrays with hemispherical beam steering.Type: GrantFiled: April 15, 2022Date of Patent: January 30, 2024Assignee: Raytheon CompanyInventors: Christopher Casimir Brough, Sean P. Kilcoyne, Richard Wahl, Thomas Yengst, Justin Gordon Adams Wehner
-
Publication number: 20230333442Abstract: A scalable independent unit cell device architecture may include a phase-shifting element and a phase shift driver both integrated within the unit cell device. The phase shift driver may be coupled to the phase-shifting element and the phase shift driver may independently control the phase-shifting element to produce an optical beam having a desired phase. The unit cell device may further include an optical antenna that outputs the beam having the desired phase. The unit cell device may be formed as an opto-electronic hybrid optimized to leverage direct bond hybridization (DBH) to attach an electronic integrated circuit wafer to a side of a photonic integrated circuit wafer. The resulting unit cell device (i.e., 24 microns) may tightly integrate individual element-level phase control, which may be implemented within large-scale two-dimensional photonic arrays with hemispherical beam steering.Type: ApplicationFiled: April 15, 2022Publication date: October 19, 2023Inventors: Christopher Casimir Brough, Sean P. Kilcoyne, Richard Wahl, Thomas Yengst, Justin Gordon Adams Wehner
-
Publication number: 20170296682Abstract: The presently disclosed subject matter provides non-invasive methods for imaging, quantifying ?7 nicotinic cholinergic receptors, and diagnosing a disease or condition associated with ?7-nAChRs. Methods for preparing radiolabeled derivatives of dibenzothiophene and compounds provided thereof also are provided.Type: ApplicationFiled: May 3, 2017Publication date: October 19, 2017Applicant: THE JOHNS HOPKINS UNIVERSITYInventors: Yongjun Gao, Andrew Horti, Robert Dannals, Richard Wahl, Ronnie Mease, Ken Kellar, Paige Finley, Martin Pomper
-
Publication number: 20160235869Abstract: The presently disclosed subject matter provides non-invasive methods for imaging, quantifying ?7 nicotinic cholinergic receptors, and diagnosing a disease or condition associated with ?7-nAChRs. Methods for preparing radiolabeled derivatives of dibenzothiophene and compounds provided thereof also are provided.Type: ApplicationFiled: February 13, 2015Publication date: August 18, 2016Applicant: THE JOHNS HOPKINS UNIVERSITYInventors: Yongjun Gao, Andrew Horti, Robert Dannals, Richard Wahl, Ronnie Mease, Ken Kellar, Paige Finley, Martin Pomper
-
Patent number: 7973635Abstract: A multilayer printed circuit board (“PCB”) coil that simulates a coil formed from litz wire. The PCB includes a plurality of alternating conductor and insulating layers interconnected to cooperatively form the coil. Each conductor layer includes a trace that follows the desired coil shape and is divided into a plurality of discrete conductor segments. The segments are electrically connected across layers to provide a plurality of current flow paths (or filaments) that undulate between the layers in a regular, repeating pattern. The coil may be configured so that each filament spends a substantially equal amount of time in proximity to the paired coil and therefore contributes substantially equally to the self or mutual inductance of the coil. Each conductor layer may include a plurality of associated traces and intralayer connector that interconnected so that each filament undulates not only upwardly/downwardly, but also inwardly/outwardly in a regular, repeating pattern.Type: GrantFiled: September 24, 2008Date of Patent: July 5, 2011Assignee: Access Business Group International LLCInventors: David W. Baarman, Joshua K. Schwannecke, Warren E. Guthrie, Richard A. Wahl, Paul Duckworth
-
Publication number: 20090085706Abstract: A multilayer printed circuit board (“PCB”) coil that simulates a coil formed from litz wire. The PCB includes a plurality of alternating conductor and insulating layers interconnected to cooperatively form the coil. Each conductor layer includes a trace that follows the desired coil shape and is divided into a plurality of discrete conductor segments. The segments are electrically connected across layers to provide a plurality of current flow paths (or filaments) that undulate between the layers in a regular, repeating pattern. The coil may be configured so that each filament spends a substantially equal amount of time in proximity to the paired coil and therefore contributes substantially equally to the self or mutual inductance of the coil. Each conductor layer may include a plurality of associated traces and intralayer connector that interconnected so that each filament undulates not only upwardly/downwardly, but also inwardly/outwardly in a regular, repeating pattern.Type: ApplicationFiled: September 24, 2008Publication date: April 2, 2009Applicant: Access Business Group International LLCInventors: David W. Baarman, Joshua K. Schwannecke, Warren E. Guthrie, Richard A. Wahl, Paul Duckworth
-
Publication number: 20060151525Abstract: A bulk bag unloader includes a frame, a bag support, a hopper beneath the bag support and an outlet chute beneath the hopper. The hopper and the outlet chute are mounted to the frame for movement substantially in unison relative to the frame. Two vibrators are mounted respectively on opposite sides of the hopper and synchronized to generate vibratory movement substantially along the axis of the outlet chute. Thus, the vibrators function to achieve an efficient and continuous discharge from the bulk bag and employ the outlet chute to regulate or stop the flow in accordance with system requirements.Type: ApplicationFiled: October 25, 2005Publication date: July 13, 2006Inventor: Richard Wahl
-
Publication number: 20050288869Abstract: A patient-specific optimally effective radiation dose for administration of a radiopharmaceutical to a patient for treatment of a disease may be established by basing the calculation of the appropriate therapeutic dose on factors such as the desired total body dose, the maximum tolerated dose, the typical clearance profile of the radiopharmaceutical, the patient's mass or maximum effective mass, and the patient-specific residence time of the radiopharmaceutical or an analog in the whole body of the patient. The use of the method allows for treatment of a patient with an appropriate dose which is maximally effective against the disease yet minimally toxic. The determination of a patient-specific therapeutic dose may be assisted by the use of a software program set to the particular parameters of the radiopharmaceutical.Type: ApplicationFiled: August 10, 2005Publication date: December 29, 2005Applicants: SmithKline Beecham Corporation, The Regents of the University of MichiganInventors: Stewart Kroll, Jeffry Siegal, Richard Wahl, Kenneth Zasadny
-
Publication number: 20050004456Abstract: A device for visualizing structure located on the interior of a biological substance. The device includes a marker member that may be a solid cylinder or lumen having an interior volume having a distal end removably insertable in the biological substance relative to the interior structure to be visualized. An image-enhancing material is contained relative to the marker member in a manner such that the imaging material does not directly contact the biological substance. The imaging material of choice is one capable of producing an emission or signal detectable external to the biological substance by suitable imaging instrumentation. Also disclosed is a method for visualizing critical structures or radiation therapy targets in imaging processes such as positron emission tomography and/or single photon emission computerized tomography, MRI, or ultrasound either used alone or in combination or in registration with anatomical imaging processes such as computed tomography or mammography.Type: ApplicationFiled: July 22, 2003Publication date: January 6, 2005Inventors: Cherry Thomas, Richard Wahl, Susan Fisher
-
Patent number: 5150040Abstract: A dual mode Z/Theta stage supports and moves a work piece such as a semiconductor wafer into position for positioning during testing. The Z/Theta stage has a peripheral four point elevator drive. The elevating suspension comprises parallel, vertically oriented, rigid lift pins which bear the weight of a top-plate. The lift pins are located about the periphery of the stage to provide stability of the support. The top plate essentially floats on the lift pins so that virtually no frictional forces are translated to lift pins. The lift pins are elevated together by the force of four matched pin lift levers, crank arms. The crank arms are driven by downward force from a vertically translating air piston which is in contact with the crank arms 31. The air piston provides a gentle force moderated by pneumatic pressure which can moderate the full force of a stepping motor which drives it.Type: GrantFiled: October 22, 1990Date of Patent: September 22, 1992Assignee: International Business Machines CorporationInventors: Herbert P. Byrnes, Richard Wahl
-
Patent number: 4423376Abstract: An electrical probe assembly with rotatable probe elements for establishing electrical contact to pad surfaces having a plurality of elongated probe elements formed of a conductive flexible material, each having a length many times its diameter, spaced upper and lower flat support elements having apertures receiving the ends of the probe elements and maintaining the probe elements in a generally parallel arrangement with at least the lower ends in a configuration corresponding to the pad configuration to be contacted, and a means to simultaneously rotate the probe elements.Type: GrantFiled: March 20, 1981Date of Patent: December 27, 1983Assignee: International Business Machines CorporationInventors: Herbert P. Byrnes, Richard Wahl
-
Patent number: 4027935Abstract: A contact for a contactor assembly is provided which is short enough for use in high frequency applications and which has a pivotable end and a pre-curved center section which deflects in combination with the pivoting of the pivotable end to provide minimal forces on contact pads when a force is applied between the pad and the contactor assembly. The pre-curved center section has a large radius and is arranged such that the pivotable end and the contacting end of the contact are offset from one another within the plane including the radius of the center section so that the deflection direction is predetermined and deflection forces are reduced.Type: GrantFiled: June 21, 1976Date of Patent: June 7, 1977Assignee: International Business Machines CorporationInventors: Herbert P. Byrnes, Richard Wahl