Tsutomu Isobe

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Tochigi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording medium having a metallic magnetic layer and an a...
- Patent number 5,650,237
- Issue date Jul 22, 1997
- Kao Corporation
- Takeshi Satoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Process of making a magnetic recording medium
- Patent number 5,188,866
- Issue date Feb 23, 1993
- Kao Corporation
- Yuzo Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,080,982
- Issue date Jan 14, 1992
- Kao Corporation
- Yuzo Yamamoto
- G11 - INFORMATION STORAGE