for video discs with grooves

Industry

CPC
G11B3/707

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Parent Industries

GPHYSICS G11Information storage G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER G11B3/00Recording by mechanical cutting, deforming or pressing

Current Industry

G11B3/707for video discs with grooves

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Information recording medium and method for recording information t...
- Patent number 5,426,632
- Issue date Jun 20, 1995
- Pioneer Video Corporation
- Shigenori Murakami
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for preparation of optical disk substrate
- Patent number 4,788,015
- Issue date Nov 29, 1988
- Dainippon Ink and Chemical Inc.
- Kazunari Sakai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for producing scratch resistant antistatic sound and pictur...
- Patent number 4,503,094
- Issue date Mar 5, 1985
- GFO Gesellschaft Fer Oberflachentechnik mbH
- Axel Breuninger
- G11 - INFORMATION STORAGE
Information Patent Grant
Scratch resistant antistatic sound and picture carrier and process...
- Patent number 4,444,849
- Issue date Apr 24, 1984
- Gesellschaft fur Oberflachentechnik mbH
- Axel Breuninger
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for making a video disc
- Patent number 4,397,805
- Issue date Aug 9, 1983
- Discovision Associates
- John R. Holmes
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Smooth groove formation method employing spin coating of negative r...
- Patent number 4,113,897
- Issue date Sep 12, 1978
- RCA Corporation
- Richard William Nosker
- G11 - INFORMATION STORAGE
Information Patent Grant
Plastics foil for the manufacture of audio-visual information carriers
- Patent number 4,071,490
- Issue date Jan 31, 1978
- Hoechst Aktiengesellschaft
- Hans-Joachim Andrascheck
- G11 - INFORMATION STORAGE
Information Patent Grant
Metal coating for video discs
- Patent number 4,004,080
- Issue date Jan 18, 1977
- RCA Corporation
- John L. Vossen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
3833408
- Patent number 3,833,408
- Issue date Sep 3, 1974
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

for video discs with grooves

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Information recording medium and method for recording information t...

Process for preparation of optical disk substrate

Process for producing scratch resistant antistatic sound and pictur...

Scratch resistant antistatic sound and picture carrier and process...

Method for making a video disc

Smooth groove formation method employing spin coating of negative r...

Plastics foil for the manufacture of audio-visual information carriers

Metal coating for video discs

3833408

Patents Applicationslast 30 patents