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Inventor

LeRoy A. Volz

Inventor
Northridge, CA, US

Overview

14→
Patents
1976–2004
Patent span
Physics
Primary field (CPC G)

Patents· 14 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer58%
Y10TTechnical subjects covered by former us classification11%
G02BOptical elements, systems or apparatus5%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light5%
H02HEmergency protective circuit arrangements5%
H03MCoding5%
H04NPictorial communication, e.g. television5%
H04QSelecting5%
PatentTitleYear
6,738,322'Optical data storage system with focus and tracking error correction'20046,580,846'Actively-controllable optical switches based on optical position sensing and applications in optical switching arrays'20036,574,174'Optical data storage system with multiple layer media'20036,501,773'Stabilization of a laser array module'20026,298,545'Method of making an actuator arm integrated piezoelectric microactuator'20016,195,028'Amplifier gain control method using conditional updating'20016,100,829'Method and apparatus for a digital peak detection system including a countdown timer'20006,052,251'Actuator arm integrated piezoelectric microactuator'20005,949,358'Rate n(n+1) code for embedded servo address encoding'19995,867,341'Disc drive system using multiple pairs of embedded servo bursts'19995,557,550'Junction temperature status sensing and reduction for integrated power devices, such as a head positioning system in a magnetic disc drive'19965,185,681'Thermal offset compensation for high density disk drives'19934,982,298'Adaptive velocity profile system for a disk drive head'19913,984,862'Television receiver response indicating apparatus'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to DYNASCAN CORP (1)· patent assignee history
1976Based in Bartlett, IL, US· patent location history
1991–2001Based in Northridge, CA, US· patent location history
1996–2000Patents assigned to SEAGATE TECHNOLOGY (5)· patent assignee history
2001Patents assigned to SEAGATE TECHNOLOGY LLC (2)· patent assignee history
2002–2003Patents assigned to VERSATILE OPTICAL NETWORKS INC (2)· patent assignee history
2002–2004Based in San Jose, CA, US· patent location history
2004Patents assigned to RES INVESTMENT NETWORK INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEAGATE TECHNOLOGY51996–2000
SEAGATE TECHNOLOGY LLC22001
VERSATILE OPTICAL NETWORKS INC22002–2003
DYNASCAN CORP11976
RES INVESTMENT NETWORK INC12004
Locations
LocationPatentsSpan
Northridge, California, US91991–2001
San Jose, California, US42002–2004
Bartlett, Illinois, US11976