Patents by Inventor Shailesh N. Joshi

Shailesh N. Joshi 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).

  • Publication number: 20250151340
    Abstract: Systems, apparatuses, and methods provide for predicting a remaining useful life of semiconductors utilizing quantum sensors. A layer of 2-D material of the quantum sensor is excited via a microwave field source and a light source of a quantum sensor while also subject to a magnetic field, where the quantum sensor is located adjacent a semiconductor device. The excitation of the layer of 2-D material is sensed, via a photodetector of the quantum sensor. A magnetic field, a temperature, and/or a strain field effect of the semiconductor device are measured based on the sensed excitation of the layer of 2-D material. A remaining useful life of the semiconductor device is predicted based on one or more of the measured magnetic field, the measured temperature, or the measured strain field effect.
    Type: Application
    Filed: November 6, 2023
    Publication date: May 8, 2025
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Ercan Mehmet DEDE, Yohei IWAHASHI, Alejandro RUIZ, Debasish BANERJEE, Shailesh N. JOSHI, Paul Donald SCHMALENBERG
  • Publication number: 20250096282
    Abstract: A bipolar plate-gas diffusion layer (GDL) assembly for a polymer-electrolyte-membrane (PEM) fuel cell includes a flat metallic bipolar plate and a porous metal GDL with superhydrophilic surfaces adjacent to and in direct contact with the flat metallic bipolar plate. The porous metal GDL includes flow channels defined by flow channels walls with flow channel surfaces. The flow channel walls and flow channel surfaces have an average porosity generally equal to an average porosity of an interior of the porous metal GDL and the superhydrophilic surfaces provide enhanced water removal from the PEM fuel cell.
    Type: Application
    Filed: September 20, 2023
    Publication date: March 20, 2025
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Gaohua Zhu, Shailesh N. Joshi
  • Publication number: 20250091415
    Abstract: A screen deployment device includes a screen, a light source, and a photoactuator coupled to the screen and configured to change size or shape in response to light. When the photoactuator is illuminated by light from the light source, the screen is in a first shape, position, or orientation (e.g., unfolded, unrolled, or otherwise deployed), and when the photoactuator is not illuminated by light from the light source, the screen is in a second shape, position, or orientation (e.g., folded, rolled, or otherwise stowed).
    Type: Application
    Filed: September 14, 2023
    Publication date: March 20, 2025
    Applicants: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shailesh N. Joshi, Ercan Mehmet Dede, Frederico Marcolino Quintao Severgnini
  • Patent number: 12246605
    Abstract: A dynamic wireless power transfer system can include a dynamic wireless power transfer transmission system and a dynamic wireless power transfer reception system. The dynamic wireless power transfer transmission system can include a signal receiver, an array of coils of conductors, an array of switches, and a controller. The dynamic wireless power transfer reception system can include a signal transmitter and an array of coils of conductors. The signal transmitter can be configured to transmit, to the signal receiver, a signal. The signal can include information indicative of a size of the array of coils of conductors of the dynamic wireless power transfer reception system. The array of switches can be configured to connect an alternating current source to the array of coils of conductors of the dynamic wireless power transfer transmission system. The controller can control, according to the information, positions of switches of the array of switches.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: March 11, 2025
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Yanghe Liu, Shailesh N. Joshi
  • Patent number: 12242049
    Abstract: A light apparatus includes an optical member, composed of an elastically deformable material, having a reflective surface to reflect light. The optical member moveable between a first state in which the reflective surface has a first structural shape, and a plurality of second states in which the reflective surface has a second structural shape different than the first structural shape. Elastically deformable position adjustment members are operable to move the optical member between the first state and the plurality of second states. The elastically deformable position adjustment members have one or more photochromatic regions that are moveable in response to exposure to UV light. Light sources are operable to selectively emit illuminating UV light in a direction that contacts the one or more photochromatic regions to thereby adjust an orientation of the optical member in a manner which changes a direction of light reflected by the optical member.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: March 4, 2025
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Ercan M Dede, Shailesh N Joshi
  • Patent number: 12240601
    Abstract: A morphing aerodynamic structure includes a body with an outer covering, a bridle attached to the body, and a light-response polymer disposed on at least one of the outer covering and the bridle. The light-responsive polymer is configured to change shape when illuminated with a laser such that at least one of an angle of attack, roll, pitch and yaw of the morphing aerodynamic structure is at least partially controlled without the use of a mechanical or pneumatic control unit.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: March 4, 2025
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuyang Song, Shailesh N. Joshi, Danil V. Prokhorov, Umesh N. Gandhi
  • Patent number: 12227296
    Abstract: A louvre system controls a flow of cooling air to a heat-generating element mounting inside a wing of an aircraft. The louvre system includes a louvre operably connected to the wing and structured to be rotatable to control airflow through an air intake of the wing into an interior of the wing. A louvre actuation mechanism is operably connected to the louvre and configured to control rotation of the louvre. A memory is communicably coupled to a processor and stores a louvre control module configured to autonomously control operation of the louvre actuation mechanism to control rotation of the louvre responsive to a temperature of a heat-generating element mounted in the wing interior.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: February 18, 2025
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Shailesh N. Joshi, Danny J. Lohan, Hiroshi Ukegawa
  • Patent number: 12216267
    Abstract: Systems and methods for adjusting one or more properties of a deformable lens are described herein. The deformable lens includes a photoswitch material that, when irradiated by a radiation, causes a curvature of a surface of the deformable lens to change from a first curvature to a second curvature based on the intensity of the radiation.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: February 4, 2025
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Shailesh N. Joshi, Ercan Mehmet Dede
  • Patent number: 12208448
    Abstract: A transient liquid phase (TLP) composition includes a plurality of first high melting temperature (HMT) particles, a plurality of second HMT particles, and a plurality of low melting temperature (LMT) particles. Each of the plurality of first HMT particles have a core-shell structure with a core formed from a first high HMT material and a shell formed from a second HMT material that is different than the first HMT material. The plurality of second HMT particles are formed from a third HMT material that is different than the second HMT material and the plurality of LMT particles are formed from a LMT material. The LMT particles have a melting temperature less than a TLP sintering temperature of the TLP composition and the first, second, and third HMT materials have a melting point greater than the TLP sintering temperature.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: January 28, 2025
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Shailesh N. Joshi, Yanghe Liu
  • Patent number: 12185511
    Abstract: A two-phase cold plate that includes a manifold body having a fluid inlet and a fluid outlet each fluidly coupled to a fluid pathway housed within the manifold body and a vaporization structure housed within the manifold body such that the fluid pathway is disposed over the vaporization structure. The vaporization structure includes a cavity cover, a porous surface, a vapor cavity disposed between the cavity cover and the porous surface, and one or more porous feeding posts extending between the cavity cover and the porous surface. The one or more porous feeding posts fluidly coupled the fluid pathway with the porous surface of the vaporization structure and the porous surface includes a plurality of nucleation sites configured to induce vaporization of a cooling fluid and facilitate vapor flow into the vapor cavity of the vaporization structure.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: December 31, 2024
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Shailesh N. Joshi, Danny J. Lohan
  • Publication number: 20240389523
    Abstract: Various embodiments of a weather management system launch an aerial feature to an elevation while the aerial feature is tethered to a positioning system. The positioning system generates a motion strategy to direct aerial feature movement over time to induce a surface condition selected by the positioning system. Execution of the motion strategy over time with the positioning system steers the aerial feature to react with naturally occurring weather conditions to provide the selected surface condition.
    Type: Application
    Filed: May 23, 2023
    Publication date: November 28, 2024
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shailesh N. Joshi, Taewoo Nam
  • Publication number: 20240389277
    Abstract: The present disclosure is directed to systems and methods for cooling electronic devices. The system includes a capillary cooler assembly comprising a housing, a plurality of feeding tubes within the housing, a wick within the housing, and one or more vapor outlets, a fluid feed line fluidly coupled to the plurality of feeding tubes, a fluid bypass line fluidly coupled to the fluid feed line, a fluid bypass valve fluidly coupled to the fluid feed line and the fluid bypass line, wherein the fluid bypass valve is selectively operable between at least two positions that control a flow of cooling fluid through the fluid bypass line, a vapor line fluidly coupled to the one or more vapor outlets, a condenser fluidly coupled to the fluid bypass line, the vapor line, and the fluid feed line, and a pump fluidly coupled to the condenser and the fluid feed line.
    Type: Application
    Filed: May 15, 2023
    Publication date: November 21, 2024
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Danny J. Lohan, Shailesh N. Joshi, Ercan M. Dede
  • Patent number: 12135152
    Abstract: Evaporator assemblies, vapor chamber assemblies, and methods for fabricating a vapor chamber are disclosed. In one embodiment, an evaporator assembly for a vapor chamber includes an evaporator surface, an array of posts extending from the evaporator surface, and an array of vapor vents within the evaporator surface. Each vapor vent of the array of vapor vents is configured as a depression within the evaporator surface. The evaporator assembly further includes a porous layer disposed on the evaporator surface, the array of posts, and the array of vapor vents.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: November 5, 2024
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Shailesh N. Joshi, Danny Lohan
  • Publication number: 20240365506
    Abstract: The present disclosure is directed to systems and methods for cooling electronic devices. The system comprises a pump, a distribution manifold fluidly coupled to the pump, one or more capillary coolers fluidly coupled to the distribution manifold, one or more electronic devices coupled to the one or more capillary coolers, a vapor line fluidly coupled to the one or more capillary coolers, and a condenser comprising an inlet and an outlet, wherein the inlet is fluidly coupled to the vapor line and the outlet is fluidly coupled to the pump.
    Type: Application
    Filed: April 28, 2023
    Publication date: October 31, 2024
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Danny J. Lohan, Shailesh N. Joshi, Ercan M. Dede
  • Publication number: 20240348090
    Abstract: A system for providing power to devices from a magnetoelectric energy harvester can include a processor and a memory. The memory can store a rate analysis module and a controller module. The rate analysis module can include instructions that cause the processor to determine a rate at which an energy storage device bank stores energy received from a magnetoelectric energy harvester. The controller module can include instructions that cause the processor to cause, in response to an existence of a condition and the rate being: (1) greater than a power consumption rate of a first device, the first device to receive power from the energy storage device bank and (2) greater than a power consumption rate of a second device, but less than the power consumption rate of the first device, the second device to receive the power from the energy storage device bank.
    Type: Application
    Filed: April 11, 2023
    Publication date: October 17, 2024
    Inventors: Shailesh N. Joshi, Hiroshi Ukegawa, Jae Seung Lee, Ercan Mehmet Dede
  • Patent number: 12103417
    Abstract: A panel for wireless charging of an electric vehicle includes a metamaterial panel with a first shape and a second shape different than the first shape. The metamaterial panel is configured to be positioned between a transmitter coil of a wireless power transfer station (WPTS) and a receiver coil of the electric vehicle during wireless charging of the electric vehicle and change between the first shape and the second shape as a function of at least one of a size of the transmitter coil, a size of the receiver coil, and a distance between the transmitter coil and the receiver coil. A robot with at least one of a robotic arm and a robotic buggy can be included and the metamaterial panel can be coupled to the robot. And the robot is configured to position the metamaterial panel between the transmitter coil of the WPTS and the receiver coil of the electric vehicle during wireless charging of the electric vehicle.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: October 1, 2024
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Yanghe Liu, Shailesh N. Joshi
  • Patent number: 12096606
    Abstract: A hybrid cooling system of an electric machine is contemplated. The hybrid cooling system includes a propeller assembly comprising a propeller, a housing comprising a stator and a rotor coupled to the propeller, and one or more capacitors, a gate drive electronics board, a cold plate, a substrate, power electronics coupled to substrate and the cold plate, a pump for pumping liquid coolant, and a heat exchanger. The liquid coolant from the pump contacts the gate drive electronics board, the cold plate, the substrate, and the power electronics for cooling the gate drive electronics board, the cold plate, the substrate, and the power electronics, and the propeller is configured to generate air that cools the stator and the rotor.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: September 17, 2024
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Shailesh N. Joshi, Hiroshi Ukegawa
  • Publication number: 20240278911
    Abstract: A morphing structure includes a deployable aerodynamic origami structure with an outer covering having a plurality of creases, a tether attached to the deployable origami structure, and a light-responsive polymer disposed on one or more of the creases of the outer covering. The light-responsive polymer is configured to change shape when activated by a light and the deployable origami structure configured to change from a first shape to a second shape different than the first shape when the light-responsive polymer is activated. In some variations, the morphing structure also includes at least one heating element disposed on one or more of the creases of the outer covering and the at least one heating element is configured to heat the light-responsive polymer such that the shape of the deployable aerodynamic origami structure moves from the second shape to the first shape.
    Type: Application
    Filed: February 16, 2023
    Publication date: August 22, 2024
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuyang Song, Shailesh N. Joshi, Danil V. Prokhorov, Umesh N. Gandhi
  • Patent number: 12064708
    Abstract: A vapor chamber includes a wick structure created by an additive selective laser sintering process. The wick structure includes a substrate, a first copper powder layer, a second copper powder layer, and a plurality of additional layers. The first copper powder layer is deposited across the substrate, wherein the first copper powder layer is subsequently selectively fused via a fusing instrument. The second copper powder layer is deposited across the first copper powder layer, wherein the second copper powder layer is subsequently selectively fused via the fusing instrument. Additionally, a plurality of additional copper powder layers are deposited wherein each additional layer is deposited on the previous layer, wherein each of the additional copper powder layers is selectively fused with a predetermined structure.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: August 20, 2024
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Ercan Dede, Feng Zhou, Shailesh N. Joshi
  • Patent number: 12062593
    Abstract: A power device assembly includes a heat-generating device, one or more porous bonding layers, and one or more cap layers. The one or more porous bonding layers are formed on a surface of the heat-generating device and define a plurality of embedded vapor channels. The one or more cap layers are engaged with a porous bonding layer of the one or more porous bonding layers opposite the heat-generating device. The one or more cap layer comprise a plurality of liquid feed channels for feeding cooling fluid to the heat-generating device via the porous bonding layer.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: August 13, 2024
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Shailesh N. Joshi, Ercan Mehmet Dede, Feng Zhou, Hiroshi Ukegawa, Danny Lohan