Fumio Kugiya

Person

Hachioji-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magneto-optical data recording/reproducing method
- Patent number 7,227,818
- Issue date Jun 5, 2007
- Hitachi, Ltd.
- Tsuyoshi Toda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for manufacturing magnetic head device
- Patent number 7,159,303
- Issue date Jan 9, 2007
- Hitachi Global Storage Technologies, Ltd.
- Ryoichi Nakatani
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic apparatus with perpendicular recording medium and head hav...
- Patent number 7,054,120
- Issue date May 30, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Ryoichi Nakatani
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with conductors formed on endlayers of a multilayer f...
- Patent number 6,687,099
- Issue date Feb 3, 2004
- Hitachi, Ltd.
- Ryoichi Nakatani
- 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 including magnetic head having multilayered...
- Patent number 6,483,677
- Issue date Nov 19, 2002
- Hitachi, Ltd.
- Ryoichi Nakatani
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetoresistance effect elements and magnetic heads using the tunn...
- Patent number 6,278,593
- Issue date Aug 21, 2001
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetoresistance effect multilayer film with ferromagnetic film su...
- Patent number 6,011,674
- Issue date Jan 4, 2000
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for recording and reading an optical disk
- Patent number 5,848,045
- Issue date Dec 8, 1998
- Hitachi, Ltd.
- Fumiyoshi Kirino
- G11 - INFORMATION STORAGE
Information Patent Grant
Longitudinal magnetic recording medium and apparatus
- Patent number 5,766,718
- Issue date Jun 16, 1998
- Hitachi, Ltd.
- Yoshibumi Matsuda
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic recording medium having at least two magnetic layers with...
- Patent number 5,736,235
- Issue date Apr 7, 1998
- Hitachi, Ltd.
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Multilayer magnetoresistance effect-type magnetic head
- Patent number 5,726,837
- Issue date Mar 10, 1998
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical disk apparatus and recording and reading method for an opti...
- Patent number 5,703,855
- Issue date Dec 30, 1997
- Hitachi, Ltd.
- Fumiyoshi Kirino
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of head positioning and magnetic recording disk drive using...
- Patent number 5,568,331
- Issue date Oct 22, 1996
- Hitachi, Ltd.
- Kyo Akagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for controlling the farm of a magnetic domain of a magneto-o...
- Patent number 5,513,165
- Issue date Apr 30, 1996
- Hitachi, Ltd.
- Hiroshi Ide
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording system using recording waveform having a...
- Patent number 5,463,600
- Issue date Oct 31, 1995
- Hitachi, Ltd.
- Fumiyoshi Kirino
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording medium having a plurality of nonlinear transmission chara...
- Patent number 5,420,846
- Issue date May 30, 1995
- Hitachi, Ltd.
- Hisataka Sugiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Multilayer magnetoresistance effect-type magnetic head
- Patent number 5,390,061
- Issue date Feb 14, 1995
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic recording data storage system
- Patent number 5,325,244
- Issue date Jun 28, 1994
- Hitachi, Ltd.
- Hisashi Takano
- G11 - INFORMATION STORAGE
Information Patent Grant
High-density magnetic recording and optical reproducing apparatus
- Patent number 5,093,822
- Issue date Mar 3, 1992
- Hitachi, Ltd.
- Fumio Kugiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive
- Patent number 5,083,226
- Issue date Jan 21, 1992
- Hitachi, Ltd.
- Kazuo Shiiki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 4,777,553
- Issue date Oct 11, 1988
- Hitachi, Ltd.
- Hajime Aoi
- G11 - INFORMATION STORAGE
Information Patent Grant
Circuit for processing waveform of reproduced signal in magnetic re...
- Patent number 4,755,891
- Issue date Jul 5, 1988
- Hitachi, Ltd.
- Yasuhiro Katoh
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
- Publication number 20060152862
- Publication date Jul 13, 2006
- Ryoichi Nakatani
- G01 - MEASURING TESTING
Information Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
- Publication number 20040090850
- Publication date May 13, 2004
- Hitachi, Ltd.
- Ryoichi Nakatani
- G01 - MEASURING TESTING
Information Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
- Publication number 20030117750
- Publication date Jun 26, 2003
- Hitachi, Ltd.
- Ryoichi Nakatani
- G01 - MEASURING TESTING
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
Magnetoresistance effect elements, magnetic heads and magnetic stor...
- Publication number 20020018325
- Publication date Feb 14, 2002
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY

Fumio Kugiya

Person

Patents Grantslast 30 patents

Magneto-optical data recording/reproducing method

Method for manufacturing magnetic head device

Magnetic apparatus with perpendicular recording medium and head hav...

Magnetic head with conductors formed on endlayers of a multilayer f...

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

Magnetic disk apparatus including magnetic head having multilayered...

Magnetoresistance effect elements and magnetic heads using the tunn...

Magnetoresistance effect multilayer film with ferromagnetic film su...

Method for recording and reading an optical disk

Longitudinal magnetic recording medium and apparatus

Magnetic recording medium having at least two magnetic layers with...

Multilayer magnetoresistance effect-type magnetic head

Optical disk apparatus and recording and reading method for an opti...

Method of head positioning and magnetic recording disk drive using...

Method for controlling the farm of a magnetic domain of a magneto-o...

Magneto-optical recording system using recording waveform having a...

Recording medium having a plurality of nonlinear transmission chara...

Multilayer magnetoresistance effect-type magnetic head

Magnetic recording data storage system

High-density magnetic recording and optical reproducing apparatus

Magnetic disk drive

Magnetic head

Circuit for processing waveform of reproduced signal in magnetic re...

Patents Applicationslast 30 patents

Magnetoresistance effect elements, magnetic heads and magnetic stor...

Magnetoresistance effect elements, magnetic heads and magnetic stor...

Magnetoresistance effect elements, magnetic heads and magnetic stor...

Magnetic disk drive and magnetic disk drive system

Magnetic disk drive and magnetic disk drive system

Magnetic disk drive and magnetic disk drive system

Magnetoresistance effect elements, magnetic heads and magnetic stor...