To Cathode Patents (Class 330/186)
D.c. coupled (Class 330/187)
  • Graphene based switching device having a tunable bandgap
    Patent number: 8105928
    Abstract: A method of implementing bandgap tuning of a graphene-based switching device includes subjecting a bi-layer graphene to an electric field while simultaneously subjecting the bi-layer graphene to an applied strain that reduces an interlayer spacing between the bi-layer graphene, thereby creating a bandgap in the bi-layer graphene.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: January 31, 2012
    Assignee: International Business Machines Corporation
    Inventors: Yu-Ming Lin, Jeng-Bang Yau
  • Electric oscillation generator
    Patent number: 4471316
    Abstract: Disclosed is an electric oscillation generator comprising an exciter and an output amplifier stage utilizing a vacuum tube connected in a common-grid circuit. A section of the input circuit of the vacuum tube is connected to the output of the exciter. The exciter is made as a power supply through a compensating-voltage producing device connected in series with said section of the input circuit and having an output voltage opposite in phase to the voltage across said section of the input circuit of the vacuum tube.
    Type: Grant
    Filed: February 10, 1981
    Date of Patent: September 11, 1984
    Inventors: Matvei I. Pass, Nina S. Ogarkova, Jury K. Lesish, Lev I. Shapiro, Jury M. Lebedev, Oleg V. Filatov