Kazunari Usui

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Fujisawa-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Track pitch variation measurement method using spiral DC pattern wr...
- Patent number 8,861,116
- Issue date Oct 14, 2014
- HGST Netherlands B.V.
- Mao Nishiyama
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
TRACK PITCH VARIATION MEASUREMENT METHOD USING SPIRAL DC PATTERN WR...
- Publication number 20130033778
- Publication date Feb 7, 2013
- Hitachi Global Storage Technologies Netherlands B.V.
- Mao Nishiyama
- G11 - INFORMATION STORAGE