Patents Assigned to Erie Technological Products, Inc.
  • Patent number: 4388415
    Abstract: A ceramic dielectric composition is provided including 63.96 to 73.72 mole % SrTiO.sub.3, 17.90 to 24.04 mole % TiO.sub.2, and 8.11 to 12.00 mole % Bi.sub.2 O.sub.3 and further including 0 to 8 weight % NiO, 0 to 1.11 weight % La.sub.2 O.sub.3, 0 to 2.94 weight % SiO.sub.2 and 0 to 0.32 weight % MnO. The said weight %, where mentioned, is with respect to the total weight of the above mentioned three compounds, SrTiO.sub.3, TiO.sub.2 and Bi.sub.2 O.sub.3.These ceramic dielectric compositions have high dielectric constants and low dielectric losses (dissipation factors). Also, the variation of dielectric constant and dissipation factor with respect to temperature, applied AC voltage, and applied DC voltage are very small.
    Type: Grant
    Filed: September 30, 1981
    Date of Patent: June 14, 1983
    Assignee: Erie Technological Products, Inc.
    Inventor: Mike S. Chu
  • Patent number: 4379854
    Abstract: A mixture of powders of barium titanate, a Curie point shifter and a lead titanate-bismuth titanate metal oxide flux which may be fired in a single step at 1800.degree. F. to 2100.degree. F. to produce a dense ceramic body with high dielectric constant. The ceramic is adapted to monolithic, multilayer ceramic capacitors. The low firing temperature minimizes the requirements of high temperature noble electrode material.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: April 12, 1983
    Assignee: Erie Technological Products, Inc.
    Inventor: Jakob C. K. Soong
  • Patent number: 4241378
    Abstract: A monolithic ceramic capacitor with base metal electrodes fired in an atmosphere of oxygen at low partial pressure in which the reaction between the electrodes and the ceramic prevents conversion of the ceramic into the semiconductive state. The base metal is a transition metal or a transition metal alloy, preferably nickel. The method is usable with any green ceramic without changing the firing temperature. The only change required is from the normal oxygen partial pressure in the kiln open to the atmosphere to an atmosphere of much lower oxygen partial pressure.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: December 23, 1980
    Assignee: Erie Technological Products, Inc.
    Inventor: John F. Dorrian
  • Patent number: 4189760
    Abstract: A monolithic ceramic capacitor having embedded electrodes formed by cosintering of ceramic dielectric layers and layers indifferent to the dielectric layers corresponding in area and position to the electrodes. The indifferent layers are converted to a conductive state, for example, by chemical conversion and used as such or are removed and replaced by metal or conductive material. One example in which the indifferent layers comprise nickel oxide involves stacking layers of green ceramic coated with nickel oxide in the desired electrode pattern, sintering the stacked layers to produce a monolith, reducing the nickel oxide in the monolith to metallic nickel in a hydrogen atmosphere at a temperature low enough to have minimal effect upon the dielectric properties of the ceramic and using the metallic nickel as reduced for the ceramic capacitor electrodes.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: February 19, 1980
    Assignee: Erie Technological Products, Inc.
    Inventor: Gilbert L. Marshall
  • Patent number: 4168519
    Abstract: A capacitor having electrodes consisting essentially of 65-95 parts tin and 35-5 parts zinc.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: September 18, 1979
    Assignee: Erie Technological Products Inc.
    Inventor: Jerome J. Hertz
  • Patent number: 4130854
    Abstract: A pigment for metallizing ceramics comprising borate treated nickel with or without additions of tin, zinc, or mixtures of tin and zinc.
    Type: Grant
    Filed: September 23, 1976
    Date of Patent: December 19, 1978
    Assignee: Erie Technological Products, Inc.
    Inventor: Jerome J. Hertz
  • Patent number: 4097911
    Abstract: A monolithic ceramic capacitor with base metal electrodes fired in an atmosphere of oxygen at low partial pressure in which the reaction between the electrodes and the ceramic prevents conversion of the ceramic into the semiconductive state. The base metal is a transition metal or a transition metal alloy, preferably nickel. The method is usable with any green ceramic without changing the firing temperature. The only change required is from the normal oxygen partial pressure in the kiln open to the atmosphere to an atmosphere of much lower oxygen partial pressure.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: June 27, 1978
    Assignee: Erie Technological Products, Inc.
    Inventor: John F. Dorrian
  • Patent number: 4056842
    Abstract: A rotary disc trimmer in which the rotor and stator leads have heads received in the same socket in the stator and are insulated from each other by a disc of insulating material fixed to the head of the rotor terminal and centered on the rotor shaft.
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: November 1, 1977
    Assignee: Erie Technological Products, Inc.
    Inventors: John W. Sienicki, Clarence A. Haycox
  • Patent number: 3988651
    Abstract: A monolithic ceramic capacitor having fritless electrodes of nickel or other base metal particles coated with a precious metal such as platinum. The coating may be very thin and typically applied by electroless plating and/or electroplating. The particles may be used as the sole pigment for the electrodes or the particles may be mixed with other compatible pigments.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: October 26, 1976
    Assignee: Erie Technological Products, Inc.
    Inventor: Jerome Jay Hertz