Norio Ota

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Tsukuba-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Recording and reproducing apparatus of thin optical disc
- Patent number 7,434,241
- Issue date Oct 7, 2008
- Hitachi Maxell, Ltd.
- Hiroyuki Awano
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having a specific relation of coercive fo...
- Patent number 7,038,873
- Issue date May 2, 2006
- Hitachi Maxell, Ltd.
- Katsusuke Shimazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium
- Patent number 5,688,574
- Issue date Nov 18, 1997
- Hitachi Maxell, Ltd.
- Reiji Tamura
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Recording and reproducing apparatus of thin optical disc
- Publication number 20060101482
- Publication date May 11, 2006
- HITACHI MAXELL, LTD.
- Hiroyuki Awano
- G11 - INFORMATION STORAGE
Information Patent Application
Driving method of flexible recording disc
- Publication number 20050201222
- Publication date Sep 15, 2005
- Hitachi Maxell, Ltd.
- Hiroyuki Awano
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, recording method therefor and magnetic r...
- Publication number 20040184176
- Publication date Sep 23, 2004
- Katsusuke Shimazaki
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-optical recording/reproducing method and apparatus
- Publication number 20040160860
- Publication date Aug 19, 2004
- Hongwei Song
- H03 - BASIC ELECTRONIC CIRCUITRY