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Avraham Perahia
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San Jose, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Energy storage for use in emergency head retraction in disk drives
Patent number
6,903,893
Issue date
Jun 7, 2005
Riospring, Inc.
Avraham Perahia
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus to measure disk drive head load/unload velocity
Patent number
6,894,453
Issue date
May 17, 2005
Riospring, Inc.
David M. Drouin
G11 - INFORMATION STORAGE
Information
Patent Grant
Track address detecting means by HDD sector servo method
Patent number
5,418,657
Issue date
May 23, 1995
Alps Electric Co., Ltd.
Michael G. Machado
G11 - INFORMATION STORAGE
Information
Patent Grant
Servo preamplifier and demodulator chain using transconductance bal...
Patent number
4,563,653
Issue date
Jan 7, 1986
Pertec Computer Corporation
Avraham Perahia
G11 - INFORMATION STORAGE
Information
Patent Grant
Closed loop servo demodulator for positioning a servo head
Patent number
4,384,309
Issue date
May 17, 1983
Pertec Computer Corporation
Avraham Perahia
G11 - INFORMATION STORAGE
Information
Patent Grant
Servo preamplifier and demodulator chain using transconductance bal...
Patent number
4,301,416
Issue date
Nov 17, 1981
Pertec Computer Corporation
Avraham Perahia
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Monitoring a voltage level of a power supply for a disk drive
Publication number
20050240783
Publication date
Oct 27, 2005
Riospring, Inc.
Avraham Perahia
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Energy storage for use in emergency head retraction in disk drives
Publication number
20040100721
Publication date
May 27, 2004
Riospring, Inc.
Avraham Perahia
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus to measure disk drive head load/unload velocity
Publication number
20040080857
Publication date
Apr 29, 2004
Riospring, Inc.
David M. Drouin
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for power management in disk drives
Publication number
20040083396
Publication date
Apr 29, 2004
Riospring, Inc.
Avraham Perahia
G06 - COMPUTING CALCULATING COUNTING