Tatsuya Ishigaki

Follow

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Disc drive having 3.5 inch form factor housing and 2.5 inch form fa...
- Patent number 6,490,123
- Issue date Dec 3, 2002
- Hitachi, Ltd.
- Nobuyuki Okunaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Actuator arm with magnetic flux response to bias arm to a stop posi...
- Patent number 5,801,904
- Issue date Sep 1, 1998
- Hitachi Ltd.
- Yoshihiko Kinoshita
- G11 - INFORMATION STORAGE
Information Patent Grant
Actuator arm with magnetic flux response to bias arm to a stop posi...
- Patent number 5,541,792
- Issue date Jul 30, 1996
- Hitachi, Ltd.
- Yoshihiko Kinoshita
- G11 - INFORMATION STORAGE
Information Patent Grant
Device for driving disk-type storage medium with improved clamp and...
- Patent number 5,504,638
- Issue date Apr 2, 1996
- Hitachi, Ltd.
- Yoshihiko Kinoshita
- G11 - INFORMATION STORAGE
Information Patent Grant
A magnetic disk apparatus and a motor securement therefor
- Patent number 5,189,577
- Issue date Feb 23, 1993
- Hitachi, Ltd.
- Hiroshi Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus having at least six magnetic disks
- Patent number 5,027,242
- Issue date Jun 25, 1991
- Hitachi, Ltd.
- Hiroshi Nishida
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetic disk drive and magnetic disk drive system
- Publication number 20020093758
- Publication date Jul 18, 2002
- Hitachi, Ltd.
- Nobuyuki Okunaga
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk drive and magnetic disk drive system
- Publication number 20020093759
- Publication date Jul 18, 2002
- Hitachi, Ltd.
- Nobuyuki Okunaga
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk drive and magnetic disk drive system
- Publication number 20020093760
- Publication date Jul 18, 2002
- Hitachi, Ltd.
- Nobuyuki Okunaga
- G11 - INFORMATION STORAGE