Kazuo Sakai

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic disk apparatus with shroud and having open space downstrea...
- Patent number 7,330,334
- Issue date Feb 12, 2008
- Hitachi Global Storage Technologies Japan, Ltd.
- Hayato Shimizu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus with air flow bypass channel
- Patent number 6,898,049
- Issue date May 24, 2005
- Hitachi, Ltd.
- Hayato Shimizu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic-disc unit with gap between disc and shroud
- Patent number 6,665,139
- Issue date Dec 16, 2003
- Hitachi, Ltd.
- Mikio Tokuyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus
- Patent number 6,600,626
- Issue date Jul 29, 2003
- Hitachi, Ltd.
- Hayato Shimizu
- G11 - INFORMATION STORAGE
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
Magnetic disk apparatus with shroud having opening downstream of mo...
- Patent number 6,369,978
- Issue date Apr 9, 2002
- Hitachi, Ltd.
- Hayato Shimizu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording having a slidable chassis
- Patent number 6,008,963
- Issue date Dec 28, 1999
- Hitachi Ltd.
- Yasuhiro Nemoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic tape device and method of controlling magnetic tape device
- Patent number 5,923,494
- Issue date Jul 13, 1999
- Hitachi, Ltd.
- Toshihiro Arisaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording and/or reproducing apparatus having a tape th...
- Patent number 5,754,361
- Issue date May 19, 1998
- Hitachi, Ltd.
- Kazuo Sakai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing apparatus
- Patent number 5,739,976
- Issue date Apr 14, 1998
- Hitachi, Ltd.
- Kazuo Sakai
- G11 - INFORMATION STORAGE
Information Patent Grant
Capstanless tape driving method and information recording and repro...
- Patent number 5,720,442
- Issue date Feb 24, 1998
- Hitachi, Ltd.
- Norihisa Yanagihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Pneumatic static guide for a tape
- Patent number 5,570,831
- Issue date Nov 5, 1996
- Hitachi, Ltd.
- Hidekazu Takeda
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Tape loading device and magnetic conversion apparatus
- Patent number 5,537,266
- Issue date Jul 16, 1996
- Hitachi, Ltd.
- Taichiro Yamashita
- G11 - INFORMATION STORAGE
Information Patent Grant
Cassette holder mechanism for magnetic recording/reproducing apparatus
- Patent number 5,497,280
- Issue date Mar 5, 1996
- Hitachi, Ltd.
- Yasuhiro Nemoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic tape library device and method for maintaining magnetic re...
- Patent number 5,495,371
- Issue date Feb 27, 1996
- Hitachi, Ltd.
- Takayuki Munemoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Analyzing system for operating condition of electrical apparatus
- Patent number 5,428,342
- Issue date Jun 27, 1995
- Hitachi, Ltd.
- Hideo Enoki
- G08 - SIGNALLING
Information Patent Grant
Rotary drum for video tape recorder
- Patent number 5,220,472
- Issue date Jun 15, 1993
- Hitachi, Ltd.
- Tomomi Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Information display apparatus
- Patent number 5,214,622
- Issue date May 25, 1993
- Hitachi, Ltd.
- Yasuhiro Nemoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Guide mechanism for positioning tape guides in a magnetic tape load...
- Patent number 5,115,361
- Issue date May 19, 1992
- Hitachi, Ltd.
- Takao Terayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Hydrodynamic grooved bearing device
- Patent number 4,961,122
- Issue date Oct 2, 1990
- Hitachi, Ltd.
- Kazuo Sakai
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Rotary magnetic head device for magnetic recording/reproduction app...
- Patent number 4,742,414
- Issue date May 3, 1988
- Hitachi, Ltd.
- Kazuo Sakai
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetic disk apparatus
- Publication number 20050219741
- Publication date Oct 6, 2005
- Hayato Shimizu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk apparatus
- Publication number 20030189785
- Publication date Oct 9, 2003
- Hayato Shimizu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk apparatus
- Publication number 20020181149
- Publication date Dec 5, 2002
- Hayato Shimizu
- G11 - INFORMATION STORAGE
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
Information Patent Application
Magnetic-disc unit
- Publication number 20020075592
- Publication date Jun 20, 2002
- Mikio Tokuyama
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK APPARATUS WITH SHROUD HAVING OPENING DOWNSTREAM OF MO...
- Publication number 20020030924
- Publication date Mar 14, 2002
- HAYATO SHIMIZU
- G11 - INFORMATION STORAGE

Kazuo Sakai

Person

Patents Grantslast 30 patents

Magnetic disk apparatus with shroud and having open space downstrea...

Magnetic disk apparatus with air flow bypass channel

Magnetic-disc unit with gap between disc and shroud

Magnetic disk apparatus

Disc drive having 3.5 inch form factor housing and 2.5 inch form fa...

Magnetic disk apparatus with shroud having opening downstream of mo...

Magnetic recording having a slidable chassis

Magnetic tape device and method of controlling magnetic tape device

Information recording and/or reproducing apparatus having a tape th...

Magnetic recording and reproducing apparatus

Capstanless tape driving method and information recording and repro...

Pneumatic static guide for a tape

Tape loading device and magnetic conversion apparatus

Cassette holder mechanism for magnetic recording/reproducing apparatus

Magnetic tape library device and method for maintaining magnetic re...

Analyzing system for operating condition of electrical apparatus

Rotary drum for video tape recorder

Information display apparatus

Guide mechanism for positioning tape guides in a magnetic tape load...

Hydrodynamic grooved bearing device

Rotary magnetic head device for magnetic recording/reproduction app...

Patents Applicationslast 30 patents

Magnetic disk apparatus

Magnetic disk apparatus

Magnetic disk apparatus

Magnetic disk drive and magnetic disk drive system

Magnetic disk drive and magnetic disk drive system

Magnetic disk drive and magnetic disk drive system

Magnetic-disc unit

MAGNETIC DISK APPARATUS WITH SHROUD HAVING OPENING DOWNSTREAM OF MO...