Location History:
- Richmond Heights, OH (US) (1991 - 2002)
- Highland Heights, OH (US) (2005)
Company Filing History:
Years Active: 1991-2005
Title: Innovations of Thomas H Yu
Introduction
Thomas H Yu is a notable inventor based in Richmond Heights, OH (US). He has made significant contributions to the field of lighting technology, holding a total of 5 patents. His work primarily focuses on tungsten halogen lamps, which are essential for various lighting applications.
Latest Patents
One of his latest patents is for a tungsten halogen lamp that incorporates a halogen-containing compound and a silicon-containing compound. This innovative lamp design includes a light transmissive envelope that encloses a tungsten filament and a gaseous fill comprising an inert gas and a halogen-containing gas, such as an alkyl halide. The fill also contains a silicon-containing compound capable of gettering oxygen within the envelope. The atomic ratio of silicon to halogen is carefully selected to remove most, but not all, of the oxygen present in the envelope. A silicon:halogen ratio of less than about 0.5, and preferably below about 0.4, has been found to be effective in achieving this goal.
Another significant patent by Thomas H Yu involves a fill for high-temperature tungsten-halogen lamps. These lamps are designed to operate satisfactorily at relatively high temperatures exceeding 250°C. They comprise a high-temperature glass or quartz envelope enclosing a tungsten filament and molybdenum, along with a fill that includes a mixture of noble gas, hydrogen, phosphorus, chlorine, and bromine. In a preferred embodiment, the chlorine and bromine are supplied by a single carbon atom hydrocarbon compound containing both halogens, such as CHClBr and CHBrCl.
Career Highlights
Throughout his career, Thomas H Yu has been associated with General Electric Company, where he has contributed to advancements in lighting technology. His innovative designs and patents have played a crucial role in enhancing the efficiency and performance of tungsten halogen lamps.
Collaborations
Thomas has collaborated with notable coworkers, including Gino Savarino and George E Sakoske. Their combined expertise has furthered the development of innovative lighting solutions.
Conclusion
Thomas H Yu's contributions to the field of lighting technology through his patents and collaborations have significantly impacted the industry. His work continues to inspire advancements in tungsten halogen lamp technology.