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DIGITAL RECORDING CORP

Overview
  • Total Patents
    11
About

DIGITAL RECORDING CORP has a total of 11 patent applications. Its first patent ever was published in 1978. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets audio-visual technology, optics and machines are YAMASAKI FUMITOMO, UNIVERSAL PIONEER CORP and NISHIMURA KOICHIRO.

Patent filings in countries

World map showing DIGITAL RECORDING CORPs patent filings in countries
# Country Total Patents
#1 United States 6
#2 Canada 4
#3 EPO (European Patent Office) 1

Patent filings per year

Chart showing DIGITAL RECORDING CORPs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Russell James T 10
#2 Brenden Byron B 4
#3 Brenden Bryon B 1
#4 Russell James Torrance 1
#5 West John L 1

Latest patents

Publication Filing date Title
CA1193893A Focusing elements and system for producing a prescribed energy distribution along an axial focal zone
CA1215467A Apparatus for improving focus during playback of an optical data record
US4622284A Process of using metal azide recording media with laser
US4545653A Focusing elements and system for producing a prescribed energy distribution along an axial focal zone
US4495609A Recording and playback system
CA1182908A Optical track segment intercept apparatus
US4426696A Optical playback apparatus focusing system for producing a prescribed energy distribution along an axial focal zone
US4321700A Optical track segment intercept apparatus
US4320488A Recording and playback system