Futoshi Tomiyama

Person

Hachioji, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic disk drive
- Patent number 7,443,625
- Issue date Oct 28, 2008
- Hitachi Global Storage Technologies Japan Ltd.
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with high reliability of the data protection, magneti...
- Patent number 7,221,530
- Issue date May 22, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device having a write head to write by shifting in a...
- Patent number 7,057,838
- Issue date Jun 6, 2006
- Hitachi, Ltd.
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording apparatus and method of writing data at low temp...
- Patent number 7,031,091
- Issue date Apr 18, 2006
- Hitachi, Ltd.
- Takayuki Ichihara
- G11 - INFORMATION STORAGE
Information Patent Grant
MAGNETIC HEAD WITH HIGH RELIABILITY OF THE DATA PROTECTION, MAGNETI...
- Patent number 6,940,690
- Issue date Sep 6, 2005
- Hitachi Global Storage Technologies Japan, Ltd.
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording/reproducing device
- Patent number 6,909,566
- Issue date Jun 21, 2005
- Hitachi Global Storage Technologies Japan, Ltd.
- Hideki Zaitsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive
- Patent number 6,906,889
- Issue date Jun 14, 2005
- Hitachi, Ltd.
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording disk drive
- Patent number 6,879,460
- Issue date Apr 12, 2005
- Hitachi Global Storage Technologies Japan, Ltd.
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive
- Patent number 6,760,172
- Issue date Jul 6, 2004
- Hitachi, Ltd.
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive
- Patent number 6,717,760
- Issue date Apr 6, 2004
- Hitachi Global Storage Technologies, Japan, Ltd.
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of controlling read write operation of a magnetic disk appar...
- Patent number 6,657,805
- Issue date Dec 2, 2003
- Hitachi, Ltd.
- Yasutaka Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording disk drive
- Patent number 6,657,804
- Issue date Dec 2, 2003
- Hitachi, Ltd.
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 6,635,367
- Issue date Oct 21, 2003
- Hitachi, Ltd.
- Masukazu Igarashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive
- Patent number 6,515,817
- Issue date Feb 4, 2003
- Hitachi, Ltd.
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for compensation of nonlinearity or fluctuation o...
- Patent number 6,473,254
- Issue date Oct 29, 2002
- Hitachi, Ltd.
- Takehiko Hamaguchi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method and system for compensation of nonlinearity or fluctuation o...
- Patent number 6,404,576
- Issue date Jun 11, 2002
- Hitachi, Ltd.
- Takehiko Hamaguchi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Adjacent track position detectable information storage apparatus
- Patent number 6,327,112
- Issue date Dec 4, 2001
- Hitachi, Ltd.
- Hiroshi Ide
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus with data track reassigning function
- Patent number 6,310,741
- Issue date Oct 30, 2001
- Hitachi, Ltd.
- Yasutaka Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-layered magnetic recording medium and magnetic recording syst...
- Patent number 5,723,198
- Issue date Mar 3, 1998
- Hitachi, Ltd.
- Yuzuru Hosoe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive with sensing current adjustment of MR head
- Patent number 5,719,719
- Issue date Feb 17, 1998
- Hitachi, Ltd.
- Toshiaki Tsuyoshi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetic disk drive
- Publication number 20060187578
- Publication date Aug 24, 2006
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head with high reliability of the data protection, magneti...
- Publication number 20060028752
- Publication date Feb 9, 2006
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording apparatus and method of writing data
- Publication number 20040080848
- Publication date Apr 29, 2004
- Takayuki Ichihara
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head with high reliability of the data protection, magneti...
- Publication number 20040080856
- Publication date Apr 29, 2004
- Hitachi, Ltd.
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording disk drive
- Publication number 20040075937
- Publication date Apr 22, 2004
- Hitachi, Ltd.
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk drive
- Publication number 20030189774
- Publication date Oct 9, 2003
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk apparatus, magnetic recording medium and method of se...
- Publication number 20030142435
- Publication date Jul 31, 2003
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk drive
- Publication number 20020191328
- Publication date Dec 19, 2002
- Hitachi, Ltd.
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium
- Publication number 20020132140
- Publication date Sep 19, 2002
- Masukazu Igarashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk drive
- Publication number 20020131188
- Publication date Sep 19, 2002
- Hitachi, Ltd.
- Takehiko Hamaguchi
- B82 - NANO-TECHNOLOGY
Information Patent Application
Method of controlling read write operation of a magnetic disk appar...
- Publication number 20020030915
- Publication date Mar 14, 2002
- Hitachi, Ltd
- Yasutaka Nishida
- G11 - INFORMATION STORAGE
Information Patent Application
Signal processing circuit free from erroneuos data and the informat...
- Publication number 20020003675
- Publication date Jan 10, 2002
- Hitachi, Ltd.
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE
Information Patent Application
Signal processing circuit free from erroneous data and the informat...
- Publication number 20010033444
- Publication date Oct 25, 2001
- Hitachi, Ltd.
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head with high reliability of the data protection, magneti...
- Publication number 20010030832
- Publication date Oct 18, 2001
- Hitachi, Ltd.
- Futoshi Tomiyama
- G11 - INFORMATION STORAGE

Futoshi Tomiyama

Person

Patents Grantslast 30 patents

Magnetic disk drive

Magnetic head with high reliability of the data protection, magneti...

Magnetic disk device having a write head to write by shifting in a...

Magnetic recording apparatus and method of writing data at low temp...

MAGNETIC HEAD WITH HIGH RELIABILITY OF THE DATA PROTECTION, MAGNETI...

Magnetic recording/reproducing device

Magnetic disk drive

Magnetic recording disk drive

Magnetic disk drive

Magnetic disk drive

Method of controlling read write operation of a magnetic disk appar...

Magnetic recording disk drive

Magnetic recording medium

Magnetic disk drive

Method and system for compensation of nonlinearity or fluctuation o...

Method and system for compensation of nonlinearity or fluctuation o...

Adjacent track position detectable information storage apparatus

Magnetic disk apparatus with data track reassigning function

Multi-layered magnetic recording medium and magnetic recording syst...

Magnetic disk drive with sensing current adjustment of MR head

Patents Applicationslast 30 patents

Magnetic disk drive

Magnetic head with high reliability of the data protection, magneti...

Magnetic recording apparatus and method of writing data

Magnetic head with high reliability of the data protection, magneti...

Magnetic recording disk drive

Magnetic disk drive

Magnetic disk apparatus, magnetic recording medium and method of se...

Magnetic disk drive

Magnetic recording medium

Magnetic disk drive

Method of controlling read write operation of a magnetic disk appar...

Signal processing circuit free from erroneuos data and the informat...

Signal processing circuit free from erroneous data and the informat...

Magnetic head with high reliability of the data protection, magneti...