Yasumasa Kawai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Storage device and a method for defect scanning of the same
- Patent number 9,928,871
- Issue date Mar 27, 2018
- Kabushiki Kaisha Toshiba
- Yasumasa Kawai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and method of data refresh processing
- Patent number 9,047,924
- Issue date Jun 2, 2015
- Kabushiki Kaisha Toshiba
- Yasumasa Kawai
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for recording and reproducing data in and from...
- Patent number 5,898,535
- Issue date Apr 27, 1999
- Kabushiki Kaisha Toshiba
- Yasumasa Kawai
- G11 - INFORMATION STORAGE
Information Patent Grant
Sector servo system data recording/reproducing apparatus without ID...
- Patent number 5,748,401
- Issue date May 5, 1998
- Kabushiki Kaisha Toshiba
- Yasumasa Kawai
- G11 - INFORMATION STORAGE
Information Patent Grant
Head positioning control apparatus for a data storage device
- Patent number 5,168,398
- Issue date Dec 1, 1992
- Kabushiki Kaisha Toshiba
- Hiroyuki Kanda
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
STORAGE DEVICE AND A METHOD FOR DEFECT SCANNING OF THE SAME
- Publication number 20180174615
- Publication date Jun 21, 2018
- Kabushiki Kaisha Toshiba
- Yasumasa KAWAI
- G11 - INFORMATION STORAGE
Information Patent Application
STORAGE DEVICE AND A METHOD FOR DEFECT SCANNING OF THE SAME
- Publication number 20170098463
- Publication date Apr 6, 2017
- Kabushiki Kaisha Toshiba
- Yasumasa KAWAI
- G11 - INFORMATION STORAGE
Information Patent Application
Circuit board, disk apparatus and methods of identifying a head IC
- Publication number 20040156146
- Publication date Aug 12, 2004
- Kabushiki Kaisha Toshiba
- Satoshi Nakano
- G11 - INFORMATION STORAGE