Chikara Takasu

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Perpendicular magnetic recording disk and manufacturing method thereof
- Patent number 8,603,650
- Issue date Dec 10, 2013
- WD Media (Singapore) Pte. Ltd.
- Yoshiaki Sonobe
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
Perpendicular magnetic recording disk and manufacturing method thereof
- Publication number 20070148499
- Publication date Jun 28, 2007
- Hoya Corporation
- Yoshiaki Sonobe
- G11 - INFORMATION STORAGE