Shoichi Miyazawa

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Disk device and method of generating signal representing head
- Patent number 7,430,085
- Issue date Sep 30, 2008
- Hitachi Global Storage Technologies Japan, Ltd.
- Motoyasu Tsunoda
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk device and method of generating signal representing head
- Patent number 7,139,143
- Issue date Nov 21, 2006
- Hitachi, Ltd.
- Motoyasu Tsunoda
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method for error correction
- Patent number RE39253
- Issue date Aug 29, 2006
- Hitachi, Ltd.
- Yukari Katayama
- 714 - Error detection/correction and fault detection/recovery
Information Patent Grant
Magnetic recording and reproducing apparatus and semiconductor inte...
- Patent number 6,700,721
- Issue date Mar 2, 2004
- Hitachi, Ltd.
- Eisaku Saiki
- G11 - INFORMATION STORAGE
Information Patent Grant
Signal processing circuit and information recording/reproducing app...
- Patent number 6,661,594
- Issue date Dec 9, 2003
- Hitachi, Ltd.
- Naoki Satoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk device and method of generating signal representing head
- Patent number 6,563,656
- Issue date May 13, 2003
- Hitachi, Ltd.
- Motoyasu Tsunoda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing apparatus and a read/write ampli...
- Patent number 6,452,736
- Issue date Sep 17, 2002
- Hitachi, Ltd.
- Eisaku Saiki
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk device and method of generating signal representing head
- Patent number 6,445,522
- Issue date Sep 3, 2002
- Hitachi, Ltd.
- Motoyasu Tsunoda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for recording and reproducing disk-type record...
- Patent number 6,400,523
- Issue date Jun 4, 2002
- Hitachi, Ltd.
- Yukari Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for recording and reproducing disk-type record...
- Patent number 6,236,528
- Issue date May 22, 2001
- Hitachi, Ltd.
- Yukari Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Signal processing apparatus and a disk control apparatus, with head...
- Patent number 6,172,828
- Issue date Jan 9, 2001
- Hitachi, Ltd.
- Motoyasu Tsunoda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for recording and reproducing disk-type record...
- Patent number 6,108,158
- Issue date Aug 22, 2000
- Hitachi, Ltd.
- Yukari Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording and reproducing device for recording and reproducing info...
- Patent number 5,953,513
- Issue date Sep 14, 1999
- Hitachi, Ltd.
- Eisaku Saiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital signal decoding apparatus and a decoding method used therein
- Patent number 5,940,416
- Issue date Aug 17, 1999
- Hitachi Ltd.
- Takushi Nishiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Digital information signal reproducing circuit and digital informat...
- Patent number 5,937,020
- Issue date Aug 10, 1999
- Hitachi, Ltd.
- Kenichi Hase
- G11 - INFORMATION STORAGE
Information Patent Grant
Peripheral equipment control device
- Patent number 5,892,958
- Issue date Apr 6, 1999
- Hitachi, Ltd.
- Yukari Nagashige
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Decoder circuitry with PRML signal processing for reproducing appar...
- Patent number 5,872,666
- Issue date Feb 16, 1999
- Hitachi, Ltd.
- Eisaku Saiki
- G11 - INFORMATION STORAGE
Information Patent Grant
Signal processing circuit and information recording/reproducing app...
- Patent number 5,818,655
- Issue date Oct 6, 1998
- Hitachi, Ltd.
- Naoki Satoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Digital signal processor, error detection method, and recording med...
- Patent number 5,774,470
- Issue date Jun 30, 1998
- Hitachi, Ltd.
- Takushi Nishiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method for error correction
- Patent number 5,771,248
- Issue date Jun 23, 1998
- Hitachi, Ltd.
- Yukari Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
AD converter and magnetic recording/regenerating apparatus using th...
- Patent number 5,745,066
- Issue date Apr 28, 1998
- Hitachi, Ltd.
- Tsuguyoshi Hirooka
- G11 - INFORMATION STORAGE
Information Patent Grant
Array disk controller for grouping host commands into a single virt...
- Patent number 5,740,465
- Issue date Apr 14, 1998
- Hitachi, Ltd.
- Naoto Matsunami
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of and apparatus for recording on and reproducing from disk-...
- Patent number 5,715,105
- Issue date Feb 3, 1998
- Hitachi, Ltd.
- Yukari Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Phase locked loop circuit with adjustable offset characteristic, me...
- Patent number 5,677,802
- Issue date Oct 14, 1997
- Hitachi, Ltd.
- Eisaku Saiki
- G11 - INFORMATION STORAGE
Information Patent Grant
Peripheral equipment control device
- Patent number 5,675,812
- Issue date Oct 7, 1997
- Hitachi, Ltd.
- Yukari Nagashige
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Ad converter and magnetic recording/regenerating apparatus using th...
- Patent number 5,557,274
- Issue date Sep 17, 1996
- Hitachi, Ltd.
- Tsuguyoshi Hirooka
- G11 - INFORMATION STORAGE
Information Patent Grant
Peripheral equipment control device
- Patent number 5,479,619
- Issue date Dec 26, 1995
- Hitachi, Ltd.
- Yukari Nagashige
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Magnetic disk system and waveform equalizer therefor
- Patent number 5,463,504
- Issue date Oct 31, 1995
- Hitachi, Ltd.
- Hiroshi Kimura
- G11 - INFORMATION STORAGE
Information Patent Grant
Peripheral equipment control device
- Patent number 5,361,364
- Issue date Nov 1, 1994
- Hitachi, Ltd.
- Yukari Nagashige
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Semiconductor integrated circuit which performs phase synchronization
- Patent number 5,222,002
- Issue date Jun 22, 1993
- Hitachi, Ltd.
- Kenichi Hase
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Disk device and method of generating signal representing head
- Publication number 20060285238
- Publication date Dec 21, 2006
- Motoyasu Tsunoda
- G11 - INFORMATION STORAGE
Information Patent Application
Disk device and method of generating signal re
- Publication number 20030179479
- Publication date Sep 25, 2003
- Hitachi, Ltd.
- Motoyasu Tsunoda
- G11 - INFORMATION STORAGE
Information Patent Application
Signal processing circuit and information recording/reproducing app...
- Publication number 20030035236
- Publication date Feb 20, 2003
- Hitachi, Ltd.
- Naoki Satoh
- G11 - INFORMATION STORAGE
Information Patent Application
Disk device and method of generating signal representing head
- Publication number 20020196570
- Publication date Dec 26, 2002
- Hitachi, Ltd.
- Motoyasu Tsunoda
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording and reproducing apparatus and semiconductor inte...
- Publication number 20020171960
- Publication date Nov 21, 2002
- Eisaku Saiki
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for recording and reproducing disk-type record...
- Publication number 20020021517
- Publication date Feb 21, 2002
- Yukari Katayama
- G11 - INFORMATION STORAGE
Information Patent Application
Signal processing circuit and information recording/reproducing app...
- Publication number 20010009483
- Publication date Jul 26, 2001
- Naoki Satoh
- G11 - INFORMATION STORAGE

Shoichi Miyazawa

Person

Patents Grantslast 30 patents

Disk device and method of generating signal representing head

Disk device and method of generating signal representing head

Apparatus and method for error correction

Magnetic recording and reproducing apparatus and semiconductor inte...

Signal processing circuit and information recording/reproducing app...

Disk device and method of generating signal representing head

Magnetic recording and reproducing apparatus and a read/write ampli...

Disk device and method of generating signal representing head

Method and apparatus for recording and reproducing disk-type record...

Method and apparatus for recording and reproducing disk-type record...

Signal processing apparatus and a disk control apparatus, with head...

Method and apparatus for recording and reproducing disk-type record...

Recording and reproducing device for recording and reproducing info...

Digital signal decoding apparatus and a decoding method used therein

Digital information signal reproducing circuit and digital informat...

Peripheral equipment control device

Decoder circuitry with PRML signal processing for reproducing appar...

Signal processing circuit and information recording/reproducing app...

Digital signal processor, error detection method, and recording med...

Apparatus and method for error correction

AD converter and magnetic recording/regenerating apparatus using th...

Array disk controller for grouping host commands into a single virt...

Method of and apparatus for recording on and reproducing from disk-...

Phase locked loop circuit with adjustable offset characteristic, me...

Peripheral equipment control device

Ad converter and magnetic recording/regenerating apparatus using th...

Peripheral equipment control device

Magnetic disk system and waveform equalizer therefor

Peripheral equipment control device

Semiconductor integrated circuit which performs phase synchronization

Patents Applicationslast 30 patents

Disk device and method of generating signal representing head

Disk device and method of generating signal re

Signal processing circuit and information recording/reproducing app...

Disk device and method of generating signal representing head

Magnetic recording and reproducing apparatus and semiconductor inte...

Method and apparatus for recording and reproducing disk-type record...

Signal processing circuit and information recording/reproducing app...