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Jih-Sheng Lai
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Blacksburg, VA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Multilevel cascade voltage source inverter with seperate DC sources
Patent number
RE37126
Issue date
Apr 3, 2001
Lockheed Martin Energy Systems, Inc.
Fang Zheng Peng
363 - Electric power conversion systems
Information
Patent Grant
Delta connected resonant snubber circuit
Patent number
5,710,698
Issue date
Jan 20, 1998
Lockheed Martin Energy Systems, Inc.
Jih-Sheng Lai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Voltage balanced multilevel voltage source converter system
Patent number
5,644,483
Issue date
Jul 1, 1997
Lockheed Martin Energy Systems, Inc.
Fang Zheng Peng
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Multilevel cascade voltage source inverter with seperate DC sources
Patent number
5,642,275
Issue date
Jun 24, 1997
Lockheed Martin Energy System, Inc.
Fang Zheng Peng
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Resonant snubber inverter
Patent number
5,642,273
Issue date
Jun 24, 1997
Martin Marietta Energy Systems, Inc.
Jih-Sheng Lai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High frequency transformerless electronics ballast using double ind...
Patent number
5,426,350
Issue date
Jun 20, 1995
Electric Power Research Institute, Inc.
Jih-Sheng Lai
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Welding machine with a high frequency converter
Patent number
5,406,051
Issue date
Apr 11, 1995
Electric Power Research Institute
Jih-Sheng Lai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High frequency quasi-resonant DC voltage notching scheme of a PWM v...
Patent number
5,111,374
Issue date
May 5, 1992
The University of Tennessee Research Corp.
Jih-Sheng Lai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Programmable current initilization for resonant DC link converter
Patent number
4,998,054
Issue date
Mar 5, 1991
The University of Tennesse Research Corp.
Bimal K. Bose
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER