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Sacrificial Layer to Facilitate Welding of Thin Foils
TS-065430 — Cost-effective method to prevent damaged electrodes when welding thin foils.
Manufacturing of automotive lithium-ion batteries and battery packs is attracting growing attention with the driving demands of electric vehicles. During battery assembly, multi-layers of metal films, functioning as anodes, cathodes, or bus-bars are welded together. Achieving satisfying weld quali…
  • College: College of Engineering (COE)
  • Inventors: Liu, Xun; Kwon, Ho; Shah, Umair
  • Licensing Officer: Zinn, Ryan

Use of Cerium in Neutralizing Iron Impurity in Aluminum Alloys
TS-065429 — Iron is the main and most detrimental impurity in most industrial casting aluminum alloys. Iron content in aluminum alloys is limited, up to 0.1 weight% in some alloys.
Iron is a major impurity element in primary and secondary (scrap) aluminum alloys. It is difficult to remove during melting and casting. Controlling the formation of Al-Fe-based intermetallics via alloying is key to leveraging the mechanical properties of aluminum alloy products. The current struc…
  • College: College of Engineering (COE)
  • Inventors: Luo, Alan; Cinkilic, Emre; Moodispaw, Michael
  • Licensing Officer: Zinn, Ryan

Streamlined Die Design Approach for Friction Stir Extrusion
TS-065428 — The Ohio State University researchers led by Dr. Rajiv Shivpuri have developed a die design approach for friction stir extrusion that optimizes metal flow to improve production efficiencies.
Friction stir extrusion (FSE) is a variation of friction stir processing that enables the hot extrusion of metal profiles from billet or other precursor material without preheating. This process saves significant thermal energy over conventional metal extrusion processes and can impart favorable …
  • College: College of Engineering (COE)
  • Inventors: Shivpuri, Rajiv
  • Licensing Officer: Zinn, Ryan

Self-filling Friction Stir Welding Processing
TS-065427 — The Ohio State University has developed a novel self-filling friction stir welding tool that eliminates keyhole defects caused by tool pin retraction.
Friction stir welding (FSW) and friction stir processing (FSP) are solid-state processes that utilize the heat generated from a rotating pin tool to soften the base metals for fusion and repair, respectively. However, keyhole defects are inevitably left after retracting the tool pin, which can ge…
  • College: College of Engineering (COE)
  • Inventors: Liu, Xun
  • Licensing Officer: Zinn, Ryan

Open Circuit Voltage Photodetector
TS-065426 — Photodetectors are devices that detect light and convert it into an electrical signal. They operate based on the photoelectric effect, in which photons (light particles) strike the semiconductor material, creating electron-hole pairs that lead to the flow of electrical current that can be measured.
Existing photodetectors are susceptible to various noise sources, such as thermal and electronic. The noise can degrade the signal-to-noise ratio and affect the accuracy of measurements, particularly in low-light conditions. This technology is an open-circuit voltage photodetector (OCVP) that…
  • College: College of Engineering (COE)
  • Inventors: Krishna, Sanjay; Fuller, Earl; Kazemi, Alireza; Khalil, Waleed; Ronningen, TJ; Smith, Dale "Shane"; Specht, Teressa; Tantawy, Ramy "Ramy"
  • Licensing Officer: Zinn, Ryan

Containment System for Heating and Off-Gassing
TS-065424 — Due to environmental concerns and the decreasing supply of fossil fuels, there is substantial demand for nuclear-based energy production. Nuclear energy now provides about 10% of the world's electricity from about 440 power reactors and is the second largest source of low-carbon power. In addition, over 50 smaller countries utilize nuclear energy in about 220 research-size reactors. These reactors are used to produce medical and industrial isotopes and several other purposes.
It is essential to meet the safeguard requirements in liquid-fueled molten salt reactors, fuel salt transportation, and fuel cycle processes and to develop effective methods for measuring and monitoring the mass of molten fuel salt or coolant salt. However, due to the complex and dynamic nature o…
  • College: College of Engineering (COE)
  • Inventors: Van Zile, Matthew; Cao, Lei Raymond; Kauffman, Andrew
  • Licensing Officer: Zinn, Ryan

Fluid Active Flow Control Enabled Variable Turbine Vane
TS-065423 — Turbine aircraft engines (jet engines) are a type of propulsion system commonly used in aviation. These engines operate on jet propulsion, where air is drawn into the engine, mixed with fuel, ignited, and then expelled at high speed to generate thrust. Jet engines are used in commercial and military aircraft, as well as helicopters.
While turbine aircraft engines offer higher efficiency and performance than their counterparts, there is still a need to improve efficiency and reduce fuel consumption and greenhouse gases. It’s estimated that jet engines account for over 2.5% of all CO2 emissions, and there are substantial …
  • College: College of Engineering (COE)
  • Inventors: Spens, Alexander; Bons, Jeffrey
  • Licensing Officer: Zinn, Ryan

Highly Efficient Light Olefin Selectivity & Production Process
TS-065422 — Light olefins, such as ethylene and propylene, are essential building blocks in the petrochemical industry and have a wide range of uses in various applications. The most common uses for olefins include polymers, chemical intermediates, solvents, rubber, and nanomaterials, among others.
Although Light olefins are used globally in many products, the catalytic processes to produce them are energy intensive with a large carbon footprint and the production of greenhouse gases and water pollution. As a result, substantial efforts are being made in the industry to develop more sustain…
  • College: College of Engineering (COE)
  • Inventors: Ozkan, Umit; Gunduz, Seval; Kim, Jaesung
  • Licensing Officer: Zinn, Ryan

Halbach Cladding Magnets for Friction Reduction in Magnetic Gears
TS-065418 — Traditional mechanical gears rely on physical teeth engagement to transfer motion and torque while magnetic gears use the repulsive or attractive forces between magnets to achieve the same goal. Magnetic gears have several advantages: low noise and vibration, reduced maintenance, and inherent overload protection. Magnetic gears are used in applications that require variable speed control and precise torque transmission, such as robotics, aircraft, and automation.
Although magnetic gears provide several advantages to their traditional mechanical counterparts, they suffer from torque transmission inefficiency due to end-effect loss, which occurs when the magnetic flux leaks axially into the surrounding air and fails to couple between the rotors. As industri…
  • College: College of Engineering (COE)
  • Inventors: Dapino, Marcelo; Losey, Bradley "Brad"; Nas, Ismail
  • Licensing Officer: Zinn, Ryan

Monolithically Integrated Tunnel Junction-Based GaN Light Emitting Transistors
TS-065398 — Emissive display technologies (e.g., OLEDs) are display technologies that emit light directly to produce images. Unlike reflective displays, which rely on external light sources, emissive displays generate light, resulting in vibrant and high-contrast visuals. These next-generation displays are used in several applications, including mobile devices, AV/VR headsets, and wearable devices.
Although emissive displays are integrated into many electronic devices, they face some challenges. One of the primary issues is the integration of LEDs and electronic drivers when scaling into mesa dimensions. The mesa is a crucial parameter in display manufacturing as it determines the size of th…
  • College: College of Engineering (COE)
  • Inventors: Rajan, Siddharth; Jamal-Eddine, Zane; Joishi, Chandan "Chandan"; Rahman, Sheikh Ifatur
  • Licensing Officer: Zinn, Ryan

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