Atsushi Kikukawa

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Higashimurayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Perpendicular magnetic recording medium and magnetic recording appa...
- Patent number 6,770,389
- Issue date Aug 3, 2004
- Hitachi, Ltd.
- Masaaki Futamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording medium and magnetic recording appa...
- Patent number 6,562,453
- Issue date May 13, 2003
- Hitachi, Ltd.
- Masaaki Futamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording medium and recording device
- Patent number 6,370,107
- Issue date Apr 9, 2002
- Hitachi, Ltd.
- Sumio Hosaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Device using sensor for small rotation angle
- Patent number 6,246,652
- Issue date Jun 12, 2001
- Hitachi, Ltd.
- Atsushi Kikukawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Information recording and reproducing method and apparatus
- Patent number 5,615,192
- Issue date Mar 25, 1997
- Hitachi, Ltd.
- Atsushi Kikukawa
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
Perpendicular magnetic recording medium and magnetic recording appp...
- Publication number 20030203189
- Publication date Oct 30, 2003
- Hitachi, Ltd.
- Masaaki Futamoto
- G11 - INFORMATION STORAGE
Information Patent Application
Recording medium and recording device
- Publication number 20010040864
- Publication date Nov 15, 2001
- Hitachi, Ltd.
- Sumio Hosaka
- B82 - NANO-TECHNOLOGY