Birth Inventor Invention Description Ind Invent Sum
1765 Eli Whitney  Born Dec 8 1765 - Died Jan 8 1825  Cotton Gin Ag Cotton Gin
1804 John Deere  Born Feb 7 1804 - Died May 17 1886  Improvement in Plows Ag Plows
1809 Cyrus Hall McCormick  Born Feb 15 1809 - Died May 13 1884  Improvement in Machines for Reaping Small Grain Ag Mechanical Reaper
1822 Louis Pasteur  Born Dec 27 1822 - Died Sep 28 1895  Improvement in Brewing Beer and Ale Ag Pasteurization
1849 Luther Burbank  Born Mar 7 1849 - Died Apr 11 1926  Peach and Fruit Ag Peach and Fruit
1860 George Washington Carver Born Jan 1 1860 - Died Jan 5 1943  Cosmetic and Process of Producing the Same; Paint and Stain and Process of Producing the Same Peanut Products Ag Agricultural chemist George Washington Carver developedcrop-rotation methods for conserving nutrients in soil and discovered hundreds of new uses for crops such as the peanut, which created new markets for farmers, especially in the South.
1800 Charles Goodyear  Born Dec 29 1800 - Died Jul 1 1860  Improvements in India-Rubber Fabrics Chem Vulcanization of Rubber
1856 Edward Goodrich Acheson  Born Mar 9 1856 - Died Jul 6 1931  Production of Artificial Crystalline Carbonaceous Materials and Carborundum Chem Carborundum
1863 Leo Hendrik Baekeland  Born Nov 14 1863 - Died Feb 23 1944  Method of Making Insoluble Products of Phenol and Formaldehyde Chem Bakelite
1866 Herbert Henry Dow  Born Feb 26 1866 - Died Oct 16 1930  Process of Extracting Bromine Chem Bromine Extraction
1865 William Meriam Burton  Born Nov 17 1865 - Died Dec 29 1954  Manufacture of Gasoline Chem Catalytic Cracking
1898 Eger V. Murphree  Born Nov 3 1898 - Died Oct 29 1962  Method of and Apparatus for Contacting Solids and Gases Chem Catalytic Cracking
1904 Donald L. Campbell  Born Aug 5 1904  Method of and Apparatus for Contacting Solids and Gases Chem Catalytic Cracking
1905 Charles W. Tyson  Born Mar 14 1905 - Died May 30 1905  Method of and Apparatus for Contacting Solids and Gases Chem Catalytic Cracking
1910 Homer Z. Martin  Born Nov 20 1910 - Died Sep 1 1993  Method of and Apparatus For Contacting Solids And Gases Chem Catalytic Cracking
1915 Charles J. Plank  Born Nov 8 1915 - Died Oct 23 1989  Catalytic Cracking of Hydrocarbons with a Crystalline Zeolite Catalyst Composite Chem Catalytic Cracking
1921 Edward J. Rosinski  Born Aug 12 1921 - Died May 4 2000  Catalytic Cracking of Hydrocarbons with a Crystalline Zeolite Catalyst Composite Chem Catalytic Cracking
1877 Frederick G. Cottrell  Born Jan 10 1877 - Died Nov 16 1948  Art of Separating Suspended Particles from Gaseous Bodies Chem Electrostatic Precipitator
1919 Paul Hogan  Born Aug 7 1919  Polymers and Production Thereof Chem HDPE and Polypropylene Plastics
1921 Robert Banks  Born Nov 24 1921 - Died Jan 3 1989  Polymers and Production Thereof Chem HDPE and Polypropylene Plastics
1896 Wallace Hume Carothers  Born Apr 27 1896 - Died Apr 29 1937  Diamine-Dicarboxylic Acid Salts and Process of Preparing Same; Synthetic Fiber Chem Nylon Synthetic Fiber
1908 William Edward Hanford  Born Dec 9 1908 - Died Jan 27 1996  Process for Making Polymeric Products and for Modifying Polymeric Products Chem Polyurethane
1910 Donald Fletcher Holmes  Born Sep 29 1910 - Died Oct 13 1980  Process for Making Polymeric Products and for Modifying Polymeric Products Chem Polyurethane
1898 Waldo L. Semon  Born Sep 10 1898 - Died May 26 1999  Synthetic Rubber-like Composition and Method of Making Same; Method of Preparing Polyvinyl Halide Products Chem Polyvinyl Chloride (PVC)
1878 Julius Nieuwland  Born Feb 14 1878 - Died Jun 11 1936  Vinyl Derivatives of Acetylene and Method of Preparing the Same Chem Synthetic Rubber
1944 Kary Mullis  Born Dec 28 1944  Process for Amplifying Nucleic Acid Sequences Chem Polymerase Chain Reacton
1860 Herman Hollerith  Born Feb 29 1860 - Died Nov 17 1929  Art of Compiling Statistics; Apparatus for Compiling Statistics Comp Punch Card Tabulator
1904 George R. Stibitz  Born Apr 30 1904 - Died Jan 31 1995  Complex Computer Comp Digital Computer
1918 Jay W. Forrester  Born Jul 14 1918  Multicoordinate Digital Information Storage Device Comp Random Access Memory
1920 An Wang  Born Feb 7 1920 - Died Mar 24 1990  Pulse Transfer Controlling Device Comp Magnetic Core Memory
1923 Jack S. Kilby  Born Nov 8 1923  Miniaturized Electronic Circuits Comp Integrated Circuit
1925 Douglas Engelbart  Born Jan 30 1925  X-Y Position Indicator for a Display System Comp Computer Mouse
1925 Seymour Cray  Born Sep 28 1925 - Died Oct 5 1996  Computer Vector Register Processing Comp Supercomputer
1926 Kenneth H. Olsen  Born Feb 20 1926  Magnetic Core Memory Comp Magnetic Core Memory
1927 Robert N. Noyce  Born Dec 12 1927 - Died Jun 3 1990  Semiconductor Device-and-Lead Structure Comp Integrated Circuit
1932 Robert Dennard  Born Sep 5 1932  Field-Effect Transistor Memory Comp DRAM
1937 Marcian E. (Ted) Hoff  Born Oct 28 1937  Memory System for a Multi-Chip Digital Computer Comp CPU
1941 Federico Faggin  Born Dec 1 1941  Memory System for a Multi-Chip Digital Computer Comp CPU
1941 Stanley Mazor  Born Oct 22 1941  Memory System for a Multi-Chip Digital Computer Comp CPU
1950 Dennis Moeller  Born Apr 28 1950  Microcomputer System with Bus Control Means for Peripheral Processing Devices Comp Peripherals
1950 Steve Wozniak  Born Aug 11 1950  Microcomputer for Use with Video Display Comp Personal Computer
1957 Mark Dean  Born Mar 2 1957  Microcomputer System with Bus Control Means for Peripheral Processing Devices Comp Peripherals
1837 Edison , Thomas Alva  Born            1837 - Died          1931 Electric Lamp Elec Electric
1846 George Westinghouse  Born Oct 6 1846 - Died Mar 12 1914  Improvement in Steam-Power Brake Devices Elec Alternating Current
1851 Emile Berliner  Born May 20 1851 - Died Aug 3 1929  Gramophone; Combined Telegraph and Telephone Elec Gramophone / Microphone
1856 Nikola Tesla  Born Jul 10 1856 - Died Jan 7 1943  Electro-Magnetic Motor Elec Alternating Current
1858 William Stanley  Born Nov 28 1858 - Died May 14 1916  Induction Coil / Transformer Elec Alternating Current
1865 Charles Proteus Steinmetz  Born Apr 9 1865 - Died Oct 26 1923  System of Distribution by Alternating Currents Elec Alternating Current
1873 William D. Coolidge  Born Oct 23 1873 - Died Feb 4 1975  Vacuum Tube (X-Ray) Elec Vacuum Tube (X-Ray)
1881 Irving Langmuir  Born Jan 31 1881 - Died Aug 16 1957  Incandescent Electric Lamp Elec Electric Lamp
1894 Percy Lebaron Spencer  Born Jul 19 1894 - Died Sep 8 1970  High Efficiency Magnetron Elec Magnetron
1900 Arnold O. Beckman  Born Apr 10 1900  Apparatus for Testing Acidity Elec pH Meter
1901 Ernest Orlando Lawrence  Born Aug 8 1901 - Died Aug 27 1958  Method and Apparatus for the Acceleration of Ions Elec Cyclotron
1931 James E. West  Born Feb 10 1931  Electroacoustic Transducer Elec Electret Microphone
1931 Gerhard M. Sessler  Born Feb 15 1931  Electroacoustic Transducer Elec Electret Microphone
1906 Chester F. Carlson  Born Feb 8 1906 - Died Sep 19 1968  Electrophotography Elec Electrophotography (Xerox) / Instant Copying
1936 Robert Bower  Born Jun 12 1936  Field-Effect Device with Insulated Gate; Self Aligned Gate MOSFET Elec Field-Effect Device with Insulated Gate; Self Aligned Gate MOSFET
1905 S. Joseph Begun  Born Dec 2 1905 - Died Jan 5 1995  Electromagnetic Talking Device; Electromagnetic Talking Machine Elec Magnetic Recording
1916 Marvin Camras  Born Jan 1 1916 - Died Jun 23 1995  Method and Means of Magnetic Recording Elec Magnetic Recording
1919 Robert N. Hall  Born Dec 25 1919  Asymmetrically Conductive Device and Method of Making the Same Elec Magnetron
1902 Walter Brattain Born Feb 10 1902 - Died Oct 13 1987  Semiconductor Amplifier; Three-Electrode Circuit Element Utilizing Semiconductive Materials Elec Transistor
1908 John Bardeen  Born May 23 1908 - Died Jan 30 1991  Semiconductor Amplifier; Three-Electrode Circuit Element Utilizing Semiconductive Materials Elec Transistor
1910 William B. Shockley Born Feb 13 1910 - Died Aug 12 1989  Semiconductor Amplifier; Three-Electrode Circuit Element Utilizing Semiconductive Materials Elec Transistor
1832 George Babcock  Born Jun 17 1832 - Died Dec 16 1893  Improvement in Steam Generators Energy Steam Generator
1833 Alfred Nobel  Born Oct 21 1833 - Died Dec 10 1896  Improved Explosive Compounds Energy Dynamite
1882 Robert Hutchings Goddard  Born Oct 5 1882 - Died Aug 10 1945  Control Mechanism for Rocket Apparatus Energy Solid Fuel Rockets
1892 Eugene Houdry  Born Apr 18 1892 - Died Jul 18 1962  Process for the Manufacture of Liquid Fuels Energy Catalytic Cracking
1898 Leo Szilard  Born Feb 11 1898 - Died May 30 1964  Neutronic Reactor / Nuclear Fission Energy Neutronic Reactor / Nuclear Fission
1901 Enrico Fermi  Born Sep 29 1901 - Died Nov 28 1954  Neutronic Reactor Energy Nuclear Fission
1876 Willis Haviland Carrier  Born Nov 26 1876 - Died Oct 9 1950  Apparatus for Treating Air Home Air Conditioner
1901 Edmund Germer  Born Aug 24 1901 - Died Aug 10 1987  Discharge Device; Metal Vapor Lamp Home Fluorescent Lamp
1907 George de Mestral  Born Jun 19 1907 - Died Feb 8 1990  Velvet Type Fabric and Method of Producing the Same Home Velcro
1910 Roy J. Plunkett  Born Jun 26 1910 - Died May 12 1994  Tetrafluoroethylene Polymers Home Teflon
1923 Stephanie Louise Kwolek  Born Jul 31 1923  Optically Anisotropic Aromatic Polyamide Dopes and Oriented Fibers Therefrom Home Kevlar
1927 Samuel Smith  Born Sep 13 1927  Block and Graft Copolymers Containing Water Solvatable Polar Groups and Fluoroaliphatic Groups Home Scotchgard (TM) Textile Proctector
1930 Patsy Sherman  Born Sep 15 1930  Block and Graft Copolymers Containing Water Solvatable Polar Groups and Fluoroaliphatic Groups Home Scotchgard (TM) Textile Proctector
1811 Elisha Graves Otis  Born Aug 3 1811 - Died Apr 8 1861  Improvement in Hoisting Apparatus Ind Elevator Brake
1854 Ottmar Mergenthaler  Born May 10 1854 - Died Oct 28 1899  Machine for Producing Printing Bars Ind Linotype
1863 Charles Martin Hall  Born Dec 6 1863 - Died Dec 27 1914  Manufacture of Aluminum Ind Aluminum
1889 William Kroll  Born Nov 24 1889 - Died Mar 30 1973  Method for Manufacturing Titanium and Alloys Thereof Ind Titanium
1885 Elizabeth Lee Hazen  Born Aug 24 1885 - Died Jun 24 1975  Nystatin and Method of Producing It Med Nystatin (Antifungal / Antibiotic)
1886 Robert R. Williams  Born Feb 16 1886 - Died Oct 2 1965  Process for Obtaining Vitamins Med Vitamins
1893 Ernest H. Volwiler  Born Aug 22 1893 - Died Oct 3 1992  Thiobarbituric Acid Derivatives Med Pentothal / Anesthesia
1898 Rachel Fuller Brown  Born Nov 23 1898 - Died Jan 14 1980  Nystatin and Method of Producing It Med Nystatin (Antifungal / Antibiotic)
1899 Percy Lavon Julian  Born Apr 11 1899 - Died Apr 19 1975  Preparation of Cortisone Med Cortisone
1899 Andrew J. Moyer  Born Nov 30 1899 - Died Feb 17 1959  Method for Production of Penicillin Med Penicillin
1900 Donalee L. Tabern  Born Jan 27 1900 - Died Dec 31 1974  Thiobarbituric Acid Derivatives Med Pentothal / Anesthesia
1906 Max Tishler  Born Oct 30 1906 - Died Mar 18 1989  Alloxazines and Isoalloxazinesand Processes for their Production; 2-Sulphanilamido-quinoxaline Med Vitamins
1911 Willem J. Kolff  Born Feb 14 1911  Soft Shell Mushroom Shaped Heart Med Artificial Heart
1912 Joseph H. Burckhalter  Born Oct 9 1912  Isothiocyanate Compounds and Means of Producing the Same Med Isothiocyanate Compounds (Antigen)
1913 Alfred Free  Born Apr 11 1913 - Died May 15 2000  Composition of Matter Med Glucose Detection for Diabetes
1915 John C. Sheehan  Born Sep 23 1915 - Died Mar 21 1992  Displacement of the Thiazolidine Ring in Penicillin with the Formation of a Biologically Active Cephem System Med Penicillin
1917 Lewis Hastings Sarett  Born Dec 22 1917 - Died Nov 28 1999  Process of Treating Pregnene Compounds Med Cortisone
1917 Benjamin A. Rubin  Born Sep 27 1917  Pronged Vaccinating and Testing Needle Med Pronged Vaccinating Needle
1918 Gertrude Belle Elion  Born Jan 23 1918 - Died Feb 21 1999  2-Amino-6-Mercaptopurine Med Anti-Leukemia drugs
1919 Wilson Greatbatch  Born Sep 6 1919  Medical Cardiac Pacemaker Med Implantable Pacemaker
1921 Forrest M. Bird  Born Jun 9 1921  Fluid Control Device; Respirator; Pediatric Ventilator Med Respirator / Ventilator
1923 Lloyd H. Conover  Born Jun 13 1923  Tetracycline Med Tetracycline
1923 Frank B. Colton  Born Mar 3 1923  Estradiene Compounds Med Oral Contraceptives
1923 Irving Millman  Born May 23 1923  Vaccine Against Viral Hepatitis and Process; Process of Viral Diagnosis and Reagent Med Vaccine for Hepatitis B
1923 Carl Djerassi  Born Oct 29 1923  Oral Contraceptives Med Oral Contraceptives
1925 Baruch S. Blumberg  Born Jul 28 1925  Vaccine Against Viral Hepatitis and Process; Process of Viral Diagnosis and Reagent Med Vaccine for Hepatitis B
1925 Robert J. Seiwald  Born Mar 26 1925  Isothiocyanate Compounds and Means of Producing the Same Med Isothiocyanate Compounds (Antigen)
1926 Robert S. Ledley  Born Jun 28 1926  Diagnostic X-Ray System Med CAT Scan
1934 Thomas Fogarty  Born Feb 25 1934  Embolectomy Catheter Med Embolectomy Catheter
1934 Charon Robin Ganellin  Born Jan 25 1934  Pharmacologically Active Guanidine Compounds Med Tagamet - Cimetidine
1934 Graham John Durant  Born Mar 14 1934  Pharmacologically Active Guanidine Compounds Med Tagamet - Cimetidine
1935 Stan Cohen  Born Feb 17 1935  Process for Producing Biologically Functional Molecular Chimeras Med Genetic Engineering
1936 Herb Boyer   Born Jul 10 1936  Process for Producing Biologically Functional Molecular Chimeras Med Genetic Engineering
1936 Raymond V. Damadian  Born Mar 16 1936  Apparatus and Method for Detecting Cancer in Tissue Med MRI
1939 John Colin Emmett  Born Apr 27 1939  Pharmacologically Active Guanidine Compounds Med Tagamet - Cimetidine
1939 Klaus K. Schmiegel  Born Jun 28 1939  Aryloxyphenylpropylamines Med Prozac
1939 Bryan B. Molloy  Born Mar 30 1939  Aryloxyphenylpropylamines Med Prozac
1903 J. Franklin Hyde  Born Mar 11 1903 - Died Oct 11 1999  Method of Making a Transparent Article of Silica Optics Transparent Silica
1915 Charles Hard Townes  Born Jul 28 1915  Production of Electromagnetic Energy; Masers and Maser Communications System Optics Laser
1920 Gordon Gould  Born Jul 17 1920  Optically Pumped Laser Amplifiers; Light Amplifiers Employing Collisions to Produce a Population Inversion Optics Laser
1921 Arthur Schawlow  Born May 5 1921 - Died Apr 28 1999  Masers and Maser Communications System Optics Laser
1924 Robert D. Maurer  Born Jul 20 1924  Fused Silica Optical Waveguide; Method of Producing Optical Waveguide Fibers Optics Optical Fibers
1941 Donald B. Keck  Born Jan 2 1941  Fused Silica Optical Waveguide; Method of Producing Optical Waveguide Fibers Optics Optical Fibers
1942 Peter C. Schultz  Born Dec 3 1942  Fused Silica Optical Waveguide; Method of Producing Optical Waveguide Fibers Optics Optical Fibers
1854 George Eastman  Born Jul 12 1854 - Died Mar 14 1932  Method and Apparatus for Coating Plates for use in Photography Photo Photography
1902 Rene Alphonse Higonnet  Born Apr 5 1902 - Died Oct 13 1983  Photo Composing Machine Photo Photo Composing Machine
1903 Harold E. Edgerton  Born Apr 6 1903 - Died Jan 4 1990  Stroboscope Photo Photography
1909 Edwin Herbert Land  Born May 7 1909 - Died Mar 1 1991  Photographic Product Comprising a Rupturable Container Carrying a Photographic Processing Liquid Photo Photography
1914 Louis Marius Moyroud  Born Feb 16 1914  Photo Composing Machine Photo Photo Composing Machine
1791 Samuel F. B. Morse  Born Apr 27 1791 - Died Apr 2 1872  Improvement in the Mode of Communicating Information by Signals by the Application of Electro-Magnetism Telcom Telegraph
1847 Alexander Graham Bell  Born Mar 3 1847 - Died Aug 2 1922  Telephone / Telegraphy Telcom Telephone / Telegraphy
1866 Reginald Fessenden  Born Oct 6 1866 - Died Jul 22 1932  Apparatus for Signaling by Electromagnetic Waves Telcom Radio
1873 Lee Deforest  Born Aug 26 1873 - Died Jun 30 1961  Space Telegraphy Telcom Radio
1874 Guglielmo Marconi  Born Apr 25 1874 - Died Jul 20 1937  Transmitting Electrical Signals Telcom Radio
1878 Ernst F. W. Alexanderson  Born Jan 25 1878 - Died May 14 1975  High-Frequency Alternator Telcom Radio
1890 Edwin Howard Armstrong  Born Dec 18 1890 - Died Feb 1 1954  Method of Receiving High-Frequency Oscillations Telcom Radio
1898 Harold Stephen Black  Born Apr 14 1898 - Died Dec 11 1983  Wave Translation System Telcom Negative Feedback Amplifier
1902 William P. Lear  Born Jun 26 1902 - Died May 14 1978  Radio Apparatus Telcom Car Radio
1903 Willard H. Bennett  Born Jun 13 1903 - Died Sep 28 1987  Radio Frequency Mass Spectrometer Telcom Radio Frequency Mass Spectrometer
1904 Andrew Alford  Born Aug 5 1904 - Died Jan 25 1992  Localizer Antenna System Telcom Localizer Antenna System
1911 Luis Walter Alvarez  Born Jun 13 1911 - Died Sep 1 1988  Radio Distance and Direction Indicator Telcom Radio Distance and Direction Indicator
1913 William R. Hewlett  Born May 20 1913 - Died Jan 12 2001  Variable Frequency Oscillation Generator Telcom Audio Signals
1922 Robert H. Rines  Born Aug 30 1922  Electric System; Microwave Scanning System; Sound Ranging System Telcom High Resolution Radar and Sonar
1819 Christopher Sholes  Born Feb 14 1819 - Died Feb 17 1890  Type Writing Machine Tool Typewriter
1830 Stephen Wilcox  Born Feb 12 1830 - Died Nov 27 1893  Improvement in Steam Generators Tool Steam Generator
1857 William Seward Burroughs  Born Jan 28 1857 - Died Sep 14 1898  Calculating Machine Tool Calculator
1913 John T. Parsons  Born Oct 11 1913  Motor Controlled Apparatus for Positioning Machine Tool Tool Numerical Control
1915 James Hillier  Born Aug 22 1915  Electron Lens Correction Device Tool Electron Microscope
1927 Theodore Harold Maiman  Born Jul 11 1927  Ruby Laser Systems Tool Laser
1933 Heinrich Rohrer  Born Jun 6 1933  Scanning Tunneling Microscope Tool Scanning Tunneling Microscope
1947 Gerd Karl Binnig  Born Jul 20 1947  Scanning Tunneling Microscope Tool Scanning Tunneling Microscope
1803 John Ericsson  Born Jul 31 1803 - Died Mar 8 1889  Propelling Steam Vessels Trans Screw Propeller
1831 Henry Timken  Born Aug 16 1831 - Died Mar 16 1909  Roller Bearing for Vehicles; Roller Bearing Trans Tapered Roller Bearings
1832 Nicolaus August Otto  Born Jun 10 1832 - Died Jan 26 1891  Gas-Motor Engine Trans Gas-Motor Engine
1844 Elijah McCoy  Born May 2 1844 - Died Oct 10 1929  Improvement in Lubricators for Steam-Engines Trans Automatic Engine Lubricator
1858 Rudolf Diesel  Born Mar 18 1858 - Died Sep 29 1913  Internal-Combustion Engine Trans Internal-Combustion Engine
1860 Elmer Ambrose Sperry  Born Oct 12 1860 - Died Jun 16 1930  Ship's Gyroscopic-Compass Set Trans Gyroscopic Compass
1863 Henry Ford  Born Jul 30 1863 - Died Apr 7 1947  Transmission Mechanism Trans Automobile
1867 Wilbur Wright  Born Apr 16 1867 - Died May 30 1912  Flying-Machine Trans Airplane
1871 Orville Wright  Born Aug 19 1871 - Died Jan 30 1948  Flying-Machine Trans Airplane
1876 Charles Franklin Kettering  Born Aug 29 1876 - Died Nov 25 1958  Engine Starting Device; Engine Starting, Lighting and Ignition System Trans Automobile
1889 Igor I. Sikorsky  Born May 25 1889 - Died Oct 26 1972  Direct-Lift Aircraft; Helicopter and Controls Therefor Trans Helicopter
1901 Charles Stark Draper  Born Oct 2 1901 - Died Jul 25 1987  Gyroscopic Apparatus Trans Stabilizing Gyroscpic
1918 Leonard Michael Greene  Born Jun 8 1918  Stall Warning Device for Airplanes Trans Aircraft Stall Warning Device
1889 Vladimir Kosma Zworykin  Born Jul 30 1889 - Died Jul 29 1982  Cathode-Ray Tube Video Cathode-Ray Tube
1901 Walt Disney  Born Dec 5 1901 - Died Dec 15 1966  Multiplane Camera Video Multiplane Camera
1906 Philo Taylor Farnsworth  Born Aug 19 1906 - Died Mar 11 1971  Television System Video Cathode-Ray Tube
1906 Louis W. Parker  Born Jan 1 1906 - Died Jun 21 1993  Television Receiver Video Television
1934 James Fergason  Born Jan 12 1934  Display Devices Utilizing Liquid Crystal Light Modulation Video Liquid Crystal Display
1920 Charles P. Ginsburg  Born Jul 27 1920 - Died Apr 9 1992  Broad Band Magnetic Tape Systems and Method Video Video Tape Recording