Christiaan Steenbergen

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Colorado Springs, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Record carrier with a preformed information track for recording inf...
- Patent number 4,872,156
- Issue date Oct 3, 1989
- U.S. Philips Corporation
- Christiaan Steenbergen
- G11 - INFORMATION STORAGE
Information Patent Grant
High density codes for optical recording
- Patent number 4,802,154
- Issue date Jan 31, 1989
- Laser Magnetic Storage International Company
- Johannes J. Verboom
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for varying laser intensity level
- Patent number 4,695,994
- Issue date Sep 22, 1987
- Laser Magnetic Storage International Company
- Christiaan Steenbergen
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording element having a pyrylium or thiopyrylium-squarylium dye...
- Patent number 4,508,811
- Issue date Apr 2, 1985
- U.S. Philips Corporation
- Dirk J. Gravesteijn
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...