Inventor

Jean-Claude Lehureau

Inventor

Paris, FR

Overview

79→

Patents

1976–2014

Patent span

Physics

Primary field (CPC G)

Patents· 79 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 transducer44%

G02BOptical elements, systems or apparatus13%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%

H04NPictorial communication, e.g. television5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

G01CMeasuring distances, levels or bearings2%

A61BDiagnosis2%

B41MPrinting, duplicating, marking, or copying processes2%

G01SRadio direction-finding2%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them2%

PatentTitleYear

8,749,794'Optical device for measuring anemometer parameters'2014 7,581,441'Method and device for protecting an aircraft against clear air turbulence'2009 7,460,456'Radial control method for a device for reproducing information of an optical disk, and reproduction device for carrying out said method'2008 7,259,571'Detector of objects by microwave frequency echo analysis'2007 7,187,448'Nonreciprocal phase shift fiber-optic gyrometer'2007 7,149,173'Medium for recording optically readable data, method for making same and optical system reproducing said data'2006 7,130,053'Device for measuring a non-reciprocal effect, in particular fiber-optic gyro'2006 7,040,162'Vibrating mass gyro'2006 6,778,669'Quantum encryption device'2004 6,577,561'Anti-chipping recording disc, reading method and recording head'2003 6,384,974'Polarization beam splitter'2002 6,288,805'Holographic projection screen and method of production'2001 6,252,613'Matrix display addressing device'2001 6,157,471'Display panel with compensation by holographic birefringent films'2000 6,014,192'Illumination device and application thereof to the illumination of a transmissive screen'2000 5,973,890'Magnetic head with saturable element between the poles outside of the gap'1999 5,936,484'UHF phase shifter and application to an array antenna'1999 5,880,914'Recording and/or reading device with magnetic heads and method for the manufacture thereof'1999 5,872,764'Light emitter-receiver device and optical reading system'1999 5,801,794'Color display device in which the area of a spherical lens equals the area of a set of RGB sub-pixels'1998 5,745,329'Magnetic recording/reading head'1998 5,671,106'Matrix magnetic recording/reading head'1997 5,659,536'Optical storage method and device for storing and reading digital information'1997 5,657,304'Optical recording medium with a diffraction grating layer'1997 5,566,982'Flexible card with validity checking device'1996 5,459,619'Method of reading recording data and a read system'1995 5,396,482'System for reading optical disks and optical disks readable by this system'1995 5,349,400'Back-projection display system and method for making a back-projection mirror'1994 5,347,380'Liquid crystal optical polarization separator with parrallel alignment on one substrate, perpendicular on other'1994 5,337,172'Liquid crystal matrix control employing doped semiconductor pixel electrode surrounded by undoped channel region'1994 5,272,551'Optical system for the reproduction of color video images'1993 5,229,874'Device for the display of color images'1993 5,218,595'Device for reading oblong segments of an advancing storage medium'1993 5,182,781'Optical device for the observation of an elongated object'1993 5,172,368'Reader for optical recording medium'1992 5,168,485'Device for optically reading optical recording medium'1992 5,157,641'Apparatus for generating a magnetic biasing field for recording in a magneto-optical recording medium'1992 5,134,516'Device for the projection of images'1992 5,125,052'Optical device for the observation of an elongated object'1992 5,124,869'Matrix device with magnetic heads, notably in thin layers'1992 5,121,419'Computer-aided tomography apparatus'1992 5,089,923'Static magnetic reading head having a plurality of elementary heads'1992 5,067,230'Method for the manufacture of planar magnetic heads by making cavities in a non-magnetic wafer'1991 5,050,027'Magnetic recording/playback head with abrasion-resisting layer'1991 5,029,336'Computer-aided tomography apparatus'1991 5,025,341'Thermo-magnetic recording head'1991 4,949,198'Thermomagnetic recording head and mode of embodiment'1990 4,942,490'Thin layer magnetic read/write head'1990 4,827,218'Linear magnetoresistance-effect sensor with semiconductor and ferrimagnetic layers and its application in a magnetic-domain detector'1989 4,791,514'Magnetic recording device with rotating head'1988 4,586,165'Thermo-optic information writing process and information support for implementing this process'1986 4,551,733'Protected optical disc comprising a flexible closure element'1985 4,405,862'Thermosensitive data-carrier designed for the recording of information and a method of recording information on such a data-carrier'1983 4,405,994'Thermo-optic information writing process and information support for implementing this process'1983 4,381,556'Videodisc reader with longitudinally displaced turntable'1983 4,380,016'Protected optical disc'1983 4,334,300'Stigmatic optical device and an optical recording head equipped with said device'1982 4,321,634'Endless magnetic tape video recorder/player with head centering means'1982 4,308,545'Protected optical disc'1981 4,275,428'Multitrack magnetic reading head'1981 4,275,275'Recording device for optically recording information on a carrier with a light spot and a positional control of the spot'1981 4,203,133'Optical player with half wave plate'1980 4,199,783'Optical system for recording and reading an information on a tape'1980 4,176,277'Thermosensitive data-carrier designed for the recording of information and a method of recording information on such a data-carrier'1979 4,171,879'Optical disc reader having diffraction minima at non-interrogated tracks'1979 4,143,402'System for the optical read-out by reflection of a data carrier using half beams'1979 4,142,208'System for automatically correcting the duty factor of the carrier wave arising from reading-out a data carrier'1979 4,139,263'Optical device for projecting a radiation beam onto a data carrier'1979 4,138,663'Optical reader for information discs equipped with means for automatic access to the information'1979 4,128,309'Automatic optical focusing device'1978 4,079,248'Optical focussing sensor'1978 4,079,247'Optical focussing device'1978 4,059,841'Optical read-out system including asymetrical beam intensity and four detector cells'1977 4,039,764'Method for protecting a flexible record disc and disc so protected'1977 4,038,524'Data carrier optically readable by transmission and method of manufacturing such a data carrier'1977 4,037,251'Data carrier optically read out by transmission, and method of manufacturing said data carrier'1977 4,025,784'Device for detecting focussing error in an optical reader head'1977 4,023,033'Optical focussing device'1977 3,971,002'Device for the optical read-out of a diffractive track belonging to a data carrier in the form of a disc or tape'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1983Patents assigned to THOMSON BRANDT (17)· patent assignee history

1976–1986Based in Paris, FR· patent location history

1978Patents assigned to BRICOT CLAUDE (1)· patent assignee history

1979–2004Patents assigned to THOMSON CSF (49)· patent assignee history

1988–2007Based in Ste Genevieve des Bois, FR· patent location history

1989–2014Based in Sainte Genevieve des Bois, FR· patent location history

1991–1992Patents assigned to THOMSON CGR (2)· patent assignee history

1994Based in Gennevieve des Bois, FR· patent location history

1994Based in Sainte Colombe, FR· patent location history

2006–2014Patents assigned to THALES SA (8)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
THOMSON CSF	49	1979–2004
THOMSON BRANDT	17	1976–1983
THALES SA	8	2006–2014
THOMSON CGR	2	1991–1992
BRICOT CLAUDE	1	1978

Locations

Location	Patents	Span
Paris, FR	29	1976–1986
Sainte Genevieve des Bois, FR	24	1989–2014
Ste Genevieve des Bois, FR	24	1988–2007
Gennevieve des Bois, FR	1	1994
Sainte Colombe, FR	1	1994