Membership
Tour
Register
Log in
Masayuki Katsumoto
Follow
Person
Kodaira, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Bearing and manufacturing method of bearing, and magnetic disk devi...
Patent number
5,856,281
Issue date
Jan 5, 1999
Hitachi, Ltd.
Masaki Otsuka
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Magnetic disc apparatus and magnetic disc
Patent number
5,636,081
Issue date
Jun 3, 1997
Hitachi, Ltd.
Teruyoshi Higashiya
G11 - INFORMATION STORAGE
Information
Patent Grant
Process for producing a rigid magnetic disk by longitudinally gener...
Patent number
5,180,608
Issue date
Jan 19, 1993
Hitachi, Ltd.
Katsuyoshi Chiba
G11 - INFORMATION STORAGE
Information
Patent Grant
Hard disk magnetic recording medium comprising magnetic powder and...
Patent number
5,180,616
Issue date
Jan 19, 1993
Hitachi, Ltd.
Hajime Fukke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Magnetic disk device and method of recording/retrieving information
Patent number
5,109,311
Issue date
Apr 28, 1992
Hitachi, Ltd.
Masanobu Hanazono
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for magnetic orientation of magnetic recording medium using...
Patent number
5,034,243
Issue date
Jul 23, 1991
Hitachi, Ltd.
Katsuyoshi Chiba
G11 - INFORMATION STORAGE