Patents Assigned to LittleFuse Inc.
  • Patent number: 6183685
    Abstract: Apparatus for producing multilayer varistors using ceramic ink and electrode ink consists of a succession of stations, in which alternating layers of ceramic ink and electrode ink are laid down on a substrate. The stations may be printing stations in which either a ceramic ink screen or an electrode ink screen is used to apply the appropriate ink to the substrate. In a first printing step, a layer of ceramic ink is laid down, within a region determined by a mask area of a ceramic ink screen. In the following step, electrode ink is laid down in regions determined by mask areas of the electrode ink screen. The apparatus includes transfer mechanisms for advancing substrates from station to station for successive printing operations, and control mechanisms for regulating and coordinating the successive printing operations and substrate travel.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 6, 2001
    Assignee: LittleFuse Inc.
    Inventors: Stephen P. Cowman, Alan J. Ratcliffe, Derek A. Nicker, John M. Shreeve, Anthony L. Oliver
  • Patent number: D585391
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: January 27, 2009
    Assignee: Littlefuse Inc.
    Inventors: Kerri Michelle Hood, Julio Cesar Urrea, Edwin J. Harris, IV, Ronald Michael Rygiel