Keiji Moroishi

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Singapore, SG

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic disk and magnetic disk manufacturing method
- Patent number 7,993,497
- Issue date Aug 9, 2011
- WD Media (Singapore) Pte. Ltd.
- Keiji Moroishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk using a glass substrate
- Patent number 6,916,558
- Issue date Jul 12, 2005
- Hoya Corporation
- Teiichiro Umezawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Antiferromagnetically coupled magnetic recording medium with dual-l...
- Patent number 6,759,138
- Issue date Jul 6, 2004
- Hoya Corporation
- Hiroshi Tomiyasu
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetic disk and magnetic disk manufacturing method
- Publication number 20070128471
- Publication date Jun 7, 2007
- HOYA CORPORATION HOYA MAGNETICS SINGAPORE PTE. LTD
- Keiji Moroishi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk and method of producing the same
- Publication number 20040213949
- Publication date Oct 28, 2004
- HOYA CORPORATION, HOYA MAGNETICS SINGAPORE PTE. LTD.
- Teiichiro Umezawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk using a glass substrate
- Publication number 20040161577
- Publication date Aug 19, 2004
- HOYA CORORATION
- Teiichiro Umezawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium
- Publication number 20030104248
- Publication date Jun 5, 2003
- HOYA CORPORATION AND HOYA MAGNETICS SINGAPORE PTE. LTD.
- Hiroshi Tomiyasu
- G11 - INFORMATION STORAGE