Tsuyoshi Takahashi

Person

Odawara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Falling sensor and the information processing device making use of it
- Patent number 7,301,721
- Issue date Nov 27, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Tatsuya Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Falling sensor and the information processing device making use of it
- Patent number 6,995,939
- Issue date Feb 7, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Tatsuya Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Falling sensor and the information processing device making use of it
- Patent number 6,771,449
- Issue date Aug 3, 2004
- Hitachi Global Storage Technologies Japan, Ltd.
- Tatsuya Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle motor and magnetic disc device using thereof having radial...
- Patent number 6,771,460
- Issue date Aug 3, 2004
- Hitachi, Ltd.
- Katsutoshi Nii
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle motor and magnetic disc device with hydrodynamic bearings
- Patent number 6,680,814
- Issue date Jan 20, 2004
- Hitachi, Ltd.
- Katsutoshi Nii
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle motor and magnetic disc device with hydrodynamic bearing
- Patent number 6,469,866
- Issue date Oct 22, 2002
- Hitachi, Ltd.
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Magnetic disk unit having anti-impact arrangement
- Patent number 6,052,255
- Issue date Apr 18, 2000
- Hitachi, Ltd.
- Yoshiko Kawabe
- G11 - INFORMATION STORAGE
Information Patent Grant
PC card type magnetic disk device
- Patent number 5,862,011
- Issue date Jan 19, 1999
- Hitachi, Ltd.
- Masahiko Sega
- G11 - INFORMATION STORAGE
Information Patent Grant
Supporting mechanism of disk unit in magnetic disk apparatus having...
- Patent number 5,740,011
- Issue date Apr 14, 1998
- Hitachi, Ltd.
- Isao Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotating disk storage device with cooling air flow control
- Patent number 5,636,082
- Issue date Jun 3, 1997
- Hitachi, Ltd.
- Takeshi Shibuya
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotating disk storage device with cooling air flow control
- Patent number 5,517,372
- Issue date May 14, 1996
- Hitachi, Ltd.
- Takeshi Shibuya
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus having improved support for head assembly
- Patent number 5,504,636
- Issue date Apr 2, 1996
- Hitachi, Ltd.
- Tetsuo Yuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Information storage device using a rotary recording medium
- Patent number 5,416,658
- Issue date May 16, 1995
- Hitachi, Ltd.
- Masahiko Sega
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk storage system
- Patent number 5,414,591
- Issue date May 9, 1995
- Hitachi, Ltd.
- Hideyuki Kimura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for writing magnetic head positioning signal
- Patent number 5,325,245
- Issue date Jun 28, 1994
- Hitachi, Ltd.
- Jyousei Shimizu
- G11 - INFORMATION STORAGE
Information Patent Grant
Voice coil motor with discrete flux paths
- Patent number 5,267,111
- Issue date Nov 30, 1993
- Hitachi, Ltd.
- Yuji Nishimura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus using a rotary actuator for magnetic head p...
- Patent number 5,247,410
- Issue date Sep 21, 1993
- Hitachi, Ltd.
- Susumu Ebihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Guide arm with a fixed printed circuit board for magnetic disk drive
- Patent number 5,245,489
- Issue date Sep 14, 1993
- Hitachi, Ltd.
- Hideyuki Kimura
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo information recording method for a storage apparatus
- Patent number 5,241,435
- Issue date Aug 31, 1993
- Hitachi, Ltd.
- Shigeyoshi Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus having improved arrangement of head disk as...
- Patent number 5,206,772
- Issue date Apr 27, 1993
- Hitachi, Ltd.
- Yoshiyuki Hirano
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk system with sub-actuators for fine head displacement
- Patent number 5,189,578
- Issue date Feb 23, 1993
- Hitachi, Ltd.
- Kenji Mori
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk apparatus having an improved cooling structure
- Patent number 5,173,819
- Issue date Dec 22, 1992
- Hitachi, Ltd.
- Tsuyoshi Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Graphic display apparatus
- Patent number 5,159,664
- Issue date Oct 27, 1992
- Hitachi Ltd.
- Tetsuya Yamamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Guide arm with affixed printed circuit board for magnetic disk drive
- Patent number 5,140,482
- Issue date Aug 18, 1992
- Hitachi, Ltd.
- Hideyuki Kimura
- G11 - INFORMATION STORAGE
Information Patent Grant
Linear access mechanism with driving force reaction cancelling devi...
- Patent number 5,062,012
- Issue date Oct 29, 1991
- Hitach, Ltd.
- Naoki Maeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary actuator and bearing support therefor
- Patent number 4,984,115
- Issue date Jan 8, 1991
- Hitachi, Ltd.
- Tsuyoshi Takahashi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Rotary actuator and fabrication process therefor
- Patent number 4,892,423
- Issue date Jan 9, 1990
- Hitachi, Ltd.
- Tsuyoshi Takahashi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Magnetic disc memory device
- Patent number 4,814,916
- Issue date Mar 21, 1989
- Hitachi, Ltd.
- Hiroshi Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Actuator for memory storage device
- Patent number 4,812,934
- Issue date Mar 14, 1989
- Hitachi, Ltd.
- Masami Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Linear actuator assembly for accessing a magnetic memory disc
- Patent number 4,795,928
- Issue date Jan 3, 1989
- Hitachi, Ltd.
- Masami Suzuki
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Falling sensor and the information processing device making use of it
- Publication number 20060072236
- Publication date Apr 6, 2006
- Tatsuya Ito
- G01 - MEASURING TESTING
Information Patent Application
Falling sensor and the information processing device making use of it
- Publication number 20040240098
- Publication date Dec 2, 2004
- Tatsuya Ito
- G01 - MEASURING TESTING
Information Patent Application
Spindle motor and magnetic disc device using thereof
- Publication number 20030011929
- Publication date Jan 16, 2003
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Spindle motor and magnetic disc device using thereof
- Publication number 20020196582
- Publication date Dec 26, 2002
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Tsuyoshi Takahashi

Person

Patents Grantslast 30 patents

Falling sensor and the information processing device making use of it

Falling sensor and the information processing device making use of it

Falling sensor and the information processing device making use of it

Spindle motor and magnetic disc device using thereof having radial...

Spindle motor and magnetic disc device with hydrodynamic bearings

Spindle motor and magnetic disc device with hydrodynamic bearing

Magnetic disk unit having anti-impact arrangement

PC card type magnetic disk device

Supporting mechanism of disk unit in magnetic disk apparatus having...

Rotating disk storage device with cooling air flow control

Rotating disk storage device with cooling air flow control

Magnetic disk apparatus having improved support for head assembly

Information storage device using a rotary recording medium

Magnetic disk storage system

Method and apparatus for writing magnetic head positioning signal

Voice coil motor with discrete flux paths

Magnetic disk apparatus using a rotary actuator for magnetic head p...

Guide arm with a fixed printed circuit board for magnetic disk drive

Servo information recording method for a storage apparatus

Magnetic disk apparatus having improved arrangement of head disk as...

Disk system with sub-actuators for fine head displacement

Disk apparatus having an improved cooling structure

Graphic display apparatus

Guide arm with affixed printed circuit board for magnetic disk drive

Linear access mechanism with driving force reaction cancelling devi...

Rotary actuator and bearing support therefor

Rotary actuator and fabrication process therefor

Magnetic disc memory device

Actuator for memory storage device

Linear actuator assembly for accessing a magnetic memory disc

Patents Applicationslast 30 patents

Falling sensor and the information processing device making use of it

Falling sensor and the information processing device making use of it

Spindle motor and magnetic disc device using thereof

Spindle motor and magnetic disc device using thereof