Eiki Oyanagi

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Patents Grantslast 30 patents

Information Patent Grant
Mold for making disc substrate, process for producing mold and disc...
- Patent number 6,068,906
- Issue date May 30, 2000
- Sony Corporation
- Takeshi Sasa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Disc medium substrate and disc device
- Patent number 6,066,380
- Issue date May 23, 2000
- Sony Corporation
- Eiki Oyanagi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Magnetic disk and magnetic disk unit
- Patent number 5,898,553
- Issue date Apr 27, 1999
- Sony Corporation
- Eiki Oyanagi
- B82 - NANO-TECHNOLOGY