Patents by Inventor John J. LeBlanc
John J. LeBlanc 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).
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Patent number: 12059575Abstract: A device can include a first compliant optrode. The first compliant optrode can be introduced into a tissue sample and can include a stack of flexible waveguide materials providing a first optical interface. The stack of flexible waveguide materials can have a thickness of less than about 100 microns. The first compliant optrode can be linear and can be configured to bend at a turn radius of less than about 300 microns.Type: GrantFiled: November 13, 2017Date of Patent: August 13, 2024Assignee: The Charles Stark Draper Laboratory, Inc.Inventors: Jesse J. Wheeler, Joseph J. Register, Parshant Kumar, Carlos A. Segura, Charles A. Lissandrello, John J. LeBlanc
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Patent number: 11385400Abstract: The material stack of the present disclosure can be used for fabricating optical waveguides that are thin and flexible, and that can bend light around small turns. The stack of materials can include a polymer core and a cladding, which together can create a large difference in refractive index. As a result, light can remain within the core even when bent around radii where standard glass fibers could fail.Type: GrantFiled: November 13, 2017Date of Patent: July 12, 2022Assignee: The Charles Stark Draper Laboratory, Inc.Inventors: Jesse J. Wheeler, Joseph J. Register, Parshant Kumar, Carlos A. Segura, Charles A. Lissandrello, John J. LeBlanc
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Patent number: 10859620Abstract: Aspects are generally directed to a compact and low-noise electric field detector, methods of operation, and methods of production thereof. In one example, an electric field detector includes a proof mass, a source of concentrated charge coupled to the proof mass, and a substrate having a substrate offset space defined therein, the proof mass being suspended above the substrate offset space. The electric field detector further includes a sense electrode disposed on the substrate within the substrate offset space and proximate the proof mass, the sense electrode being configured to measure a change in capacitance relative to the proof mass from movement of the proof mass in response to a received electric field at the source of concentrated charge. The electric field detector includes a control circuit coupled to the sense electrode and configured to determine a characteristic of the electric field based on the measured change in capacitance.Type: GrantFiled: April 3, 2018Date of Patent: December 8, 2020Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.Inventors: James A. Bickford, Stephanie Lynne Golmon, Paul A. Ward, William D. Sawyer, Marc S. Weinberg, John J. LeBlanc, Louis Kratchman, James S. Pringle, Jr., Daniel Freeman, Amy Duwel, Max Lindsay Turnquist, Ronald Steven McNabb, Jr., William A. Lenk
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Publication number: 20180292470Abstract: Aspects are generally directed to a compact and low-noise magnetic field detector, methods of operation, and methods of production thereof. In one example, a magnetic field detector includes a proof mass, a magnetic dipole source coupled to the proof mass, and a substrate having a substrate offset space defined therein, the proof mass being suspended above the substrate offset space. The magnetic field detector further includes a sense electrode disposed on the substrate within the substrate offset space and positioned proximate the proof mass, the sense electrode being configured to measure a change in capacitance relative to the proof mass from movement of the proof mass in response to a received magnetic field at the magnetic dipole source. The magnetic field detector includes a control circuit coupled to the sense electrode and configured to determine a characteristic of the magnetic field based on the measured change in capacitance.Type: ApplicationFiled: April 3, 2018Publication date: October 11, 2018Inventors: James A. Bickford, Stephanie Lynne Golmon, Paul A. Ward, William D. Sawyer, Marc S. Weinberg, John J. LeBlanc, Louis Kratchman, James S. Pringle, JR., Daniel Freeman, Amy Duwel, Max Lindsay Turnquist, Ronald Steven McNabb, JR., William A. Lenk
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Publication number: 20180284175Abstract: Aspects are generally directed to a compact and low-noise electric field detector, methods of operation, and methods of production thereof. In one example, an electric field detector includes a proof mass, a source of concentrated charge coupled to the proof mass, and a substrate having a substrate offset space defined therein, the proof mass being suspended above the substrate offset space. The electric field detector further includes a sense electrode disposed on the substrate within the substrate offset space and proximate the proof mass, the sense electrode being configured to measure a change in capacitance relative to the proof mass from movement of the proof mass in response to a received electric field at the source of concentrated charge. The electric field detector includes a control circuit coupled to the sense electrode and configured to determine a characteristic of the electric field based on the measured change in capacitance.Type: ApplicationFiled: April 3, 2018Publication date: October 4, 2018Inventors: James A. Bickford, Stephanie Lynne Golmon, Paul A. Ward, William D. Sawyer, Marc S. Weinberg, John J. LeBlanc, Louis Kratchman, James S. Pringle, JR., Daniel Freeman, Amy Duwel, Max Lindsay Turnquist, Ronald Steven McNabb, JR., William A. Lenk
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Publication number: 20180136389Abstract: The material stack of the present disclosure can be used for fabricating optical waveguides that are thin and flexible, and that can bend light around small turns. The stack of materials can include a polymer core and a cladding, which together can create a large difference in refractive index. As a result, light can remain within the core even when bent around radii where standard glass fibers could fail.Type: ApplicationFiled: November 13, 2017Publication date: May 17, 2018Inventors: Jesse J. Wheeler, Joseph J. Register, Parshant Kumar, Carlos A. Segura, Charles A. Lissandrello, John J. LeBlanc
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Publication number: 20180133506Abstract: This disclosure provides a device that can include a first compliant optrode. The first compliant optrode can include a stack of flexible waveguide materials providing a first optical interface and configured to be introduced into a tissue sample. The stack of flexible waveguide materials can have a thickness of less than about 100 microns. The first compliant optrode can be substantially linear and can be configured to bend at a turn radius of less than about 300 microns.Type: ApplicationFiled: November 13, 2017Publication date: May 17, 2018Inventors: Jesse J. Wheeler, Joseph J. Register, Parshant Kumar, Carlos A. Segura, Charles A. Lissandrello, John J. LeBlanc
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Patent number: 8750652Abstract: A microfluidic detection device is provided that includes a planar waveguide, or an ion-exchange planar waveguide, a microfluidic channel disposed on the planar waveguide, a light source, such as a laser, LED or incandescent light, directed through the planar waveguide, a labeled cell disposed in the microfluidic channel, where the labeled cell lies in an evanescent field extending from the planar waveguide, and a light detector disposed to receive light from the light source through the planar waveguide. The evanescent field interacts with the labeled cell, where the light through the planar waveguide is altered according to a presence of the labeled cell in the microfluidic channel.Type: GrantFiled: October 12, 2011Date of Patent: June 10, 2014Assignees: The Board of Trustees of the Leland Stanford Junior University, The Charles Stark Draper Laboratory, Inc.Inventors: Manish J. Butte, John J. LeBlanc
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Publication number: 20120087618Abstract: A microfluidic detection device is provided that includes a planar waveguide, or an ion-exchange planar waveguide, a microfluidic channel disposed on the planar waveguide, a light source, such as a laser, LED or incandescent light, directed through the planar waveguide, a labeled cell disposed in the microfluidic channel, where the labeled cell lies in an evanescent field extending from the planar waveguide, and a light detector disposed to receive light from the light source through the planar waveguide. The evanescent field interacts with the labeled cell, where the light through the planar waveguide is altered according to a presence of the labeled cell in the microfluidic channel.Type: ApplicationFiled: October 12, 2011Publication date: April 12, 2012Inventors: Manish J. Butte, John J. LeBlanc
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Publication number: 20040114869Abstract: A mode converter including a silicon waveguide core deposited over a first silicon dioxide cladding layer. The silicon waveguide core is formed such that a first end of the silicon waveguide core has a larger cross-sectional area than a second end of the silicon waveguide core. The silicon waveguide core may include a vertical taper and/or a lateral taper.Type: ApplicationFiled: September 19, 2003Publication date: June 17, 2004Inventors: Eugene E. Fike, John Fijol, Philip B. Keating, Donald I. Gilbody, John J. LeBlanc, Stuart A. Jacobson, Michael B. Frish, Carl C. Bozler, Craig L. Keast, Michael Fritze, Jeffery M. Knecht
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Patent number: 4126054Abstract: A control means for automatic or semi-automatic transmissions and other devices which includes an integral lock-out means, an integrally movable control lever seal, and a direct reading indicator system. The control comprises a housing having an opening therein and a control lever movable between a selectable number of placements or control positions. The movable control lever includes a lever arm which extends through the opening above the housing and a lever actuator within the housing. The lever control is pivotally mounted within the housing by a pivot means located between the lever arm and actuator. The actuator includes at least one means adapted to mount or receive means for transferring motion, such as a push-pull cable rod from the lever control to the device such as a transmission to be controlled and preferably includes mounting means for slidably mounting a detent pin. A quadrant plate, mounted to the housing, is provided which includes a substantially arcuate opening having at least one detent.Type: GrantFiled: March 8, 1976Date of Patent: November 21, 1978Assignee: Incom International Inc.Inventors: William D. Langford, Dale F. Leuenberger, John J. LeBlanc