Maruwa Bussan K.K.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Synthetic lubricant for lubricating thin film and magnetic recordin...
- Patent number 4,912,252
- Issue date Mar 27, 1990
- Hitachi Metals, Ltd.
- Takateru Dekura
- G11 - INFORMATION STORAGE
Information Patent Grant
Synthetic lubricant for lubricating thin film and magnetic recordin...
- Patent number 4,897,211
- Issue date Jan 30, 1990
- Hitachi Metals, Ltd.
- Takateru Dekura
- G11 - INFORMATION STORAGE
Information Patent Grant
Synthetic lubricant for lubricating thin film and magnetic recordin...
- Patent number 4,871,625
- Issue date Oct 3, 1989
- Hitachi Metals, Ltd.
- Takateru Dekura
- C07 - ORGANIC CHEMISTRY