Inventor

Jacobus C. L. van Peppen

Inventor

San Jose, CA, US

Overview

24→

Patents

1983–2007

Patent span

Physics

Primary field (CPC G)

Patents· 24 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 transducer53%

H03FAmplifiers13%

G01RMeasuring electric variables10%

B82YSpecific uses or applications of nanostructures8%

G11CStatic stores5%

A61BDiagnosis3%

G01VGeophysics3%

G06FElectric digital data processing3%

H03KPulse technique3%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use3%

PatentTitleYear

7,177,107'Preamplifier circuit with signal interference cancellation suitable for use in magnetic storage devices'2007 7,061,706'Circuitry for linear control of head flying height using thermal means'2006 6,671,113'Characteristically terminated write driver with compensation for magnetic response and method therefor'2003 6,622,252'Data storage device having selectable performance modes for use in dual powered portable devices'2003 6,608,736'Integrated trace suspension interconnect for high-data-rate single-ended preamplifier for (G)MR elements'2003 6,606,212'Wideband readout of magneto-resistive heads for data storage'2003 6,420,910'Quasi-current sensing input impedance controlled preamplifier for magnetoresistive elements'2002 6,400,518'Magneto-resistive asymmetry correction circuit'2002 6,331,919'Write head impedance termination in magnetic recording'2001 6,201,653'By-pass write drivers for high-performance data recording'2001 6,101,056'Electronic magnetoresistive voltage biasing using a circuit and current mirrors'2000 5,986,839'Electronic magnetoresistive sensor biasing using a transducer equivalent circuit and current sources'1999 5,953,173'High CMRR and sensor-disk short-circuit protection device for dual element magnetoresistive heads'1999 5,877,911'Magneto-resistive head pre-amplifying circuit for avoiding output voltage transients'1999 5,309,298'Suppression of magnetic instability in inductive recording heads'1994 5,287,340'Differential amplifier for optical detectors in an optical data storage system'1994 5,270,882'Low-voltage, low-power amplifier for magnetoresistive sensor'1993 5,168,395'Controlled magnetic recording head relaxation in a magnetic recording system'1992 5,057,785'Method and circuitry to suppress additive disturbances in data channels'1991 4,914,398'Method and circuitry to suppress additive disturbances in data channels containing MR sensors'1990 4,786,993'Voltage amplifier for constant voltage biasing and amplifying signals from a MR sensor'1988 4,777,544'Method and apparatus for in-situ measurement of head/recording medium clearance'1988 4,602,639'Method and apparatus for contactless measurement of charge concentrations and potential differences in biological organisms'1986 4,412,317'Transducer for picking up mechanical vibrations, in particular seismic waves, and a seismic measuring system including such a transducer'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to REGT SPECIAL CABLE BV DE (1)· patent assignee history

1983–1986Based in Delft, NL· patent location history

1986Patents assigned to MARDICE HOLDING (1)· patent assignee history

1988–2003Patents assigned to IBM (20)· patent assignee history

1988–2007Based in San Jose, CA, US· patent location history

2006–2007Patents assigned to HITACHI GLOBAL STORAGE TECH (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
IBM	20	1988–2003
HITACHI GLOBAL STORAGE TECH	2	2006–2007
MARDICE HOLDING	1	1986
REGT SPECIAL CABLE BV DE	1	1983

Locations

Location	Patents	Span
San Jose, California, US	22	1988–2007
Delft, NL	2	1983–1986