Inventor

DUBOIS JEAN-CLAUDE

74 patents

⚠️ This page may combine multiple inventors who share the name “DUBOIS JEAN-CLAUDE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DUBOIS JEAN-CLAUDE

THOMSON CSF

Object-marking means, method for making such means and reading device

Polymers containing heterocycles and aromatic nuclei, and conductive organic materials made from such polymers

Electronic card with indicator of normal operation

Display process using a thermo-optical effect with a memory in a thin disc-like liquid crystal layer and disc-like liquid crystals having such an effect

Mesomorphous 4-alkoxytetrafluorobenzoic acid esters

Mesogenic biphenyl benzoates

Controlled-porosity piezoelectric ceramic

Process for obtaining a structure generating non-linear electrooptical effects, structure obtained and applications thereof

Amorphous copolymers for photorefractive compounds used in optical signal processing

Method of manufacturing a liquid crystal device with plane alignment

Type A smectic liquid crystal having a positive dielectric anisotropy

Diphenylic esters exhibiting mesomorphic phases

Electrolithographic process which makes it possible to improve the sensitivity of masking resins, and a mask obtained by this kind of process

Liquid crystal with high negative dielectric anisotropy and mixtures of the same with nematic liquid crystals for improving dynamic scattering in electro-optic devices

Dielectric formed by a thin-layer polymer, a process for producing said layer and electrical capacitors comprising this dielectric

Method for producing a silica mask on a semiconductor substrate

Nematic liquid crystal of homeotropically aligned type and a method of manufacturing said device

Conductive composite polymer film and method for its manufacture

Liquid crystals having a type A smectic phase

Family of compounds crosslinkable by photon irradiation

Cholesteric liquid crystal of the reentrant type and a temperature-detecting device entailing the use of a liquid crystal of this type

Mixture of disc-like liquid crystals, electro-optical device using such a mixture and process for orienting the molecules of the mixture

Amorphous copolymers for photorefractive compounds used in optical signal processing

Process for the synthesis of polysilsesquioxanes and application of the compounds obtained

Liquid crystals with improved properties and devices using such liquid crystals

Card having a ferromagnetic track and reader therefor

Conductive materials based on encapsulated conductive polymers

Conductive materials based on encapsulated conductive polymers

Thermally reticulated materials for non-linear optical applications

Process for gluing two members using a photopolymerizable substance

Liquid crystal materials having a formula containing a diphenylethane nucleus

Alkylphenyl 3-cyano or fluoro-4-alkyloxybenzoates and mesomorphic mixtures thereof

Liquid crystal materials containing a diphenylethane nucleus

INST FRANCAIS DU PETROLE

System for driving a non rigid exploration device into a well where its progression by gravity is difficult

Method and device for emitting radial seismic waves in a material medium by electromagnetic induction

Vibrator and method of exploring a material medium by means of very low-frequency elastic vibrations

Device for avoiding multiple bounces against a target of a mass _falling thereon along a rectilinear trajectory

Elongated seismic receiver of continuous structure

THOMSON BRANDT

Method of manufacturing a die designed to duplicate a video frequency signal recording

Data carrier optically readable by transmission and method of manufacturing such a data carrier

Data carrier optically read out by transmission, and method of manufacturing said data carrier

Thermosensitive data-carrier designed for the recording of information and a method of recording information on such a data-carrier

Thermosensitive data-carrier designed for the recording of information and a method of recording information on such a data-carrier

NEMOPTIC

Nematic liquid crystal mixtures for bistable display device

Polyimides for anchoring liquid crystals, display devices including same and method for the preparation of said devices

Nematic liquid crystal mixtures for use in bistable display devices

PHILIPS CORP

Light-emitting device coupled to an optical fibre

Coupling device for connecting a light source to an optical fiber

NAKATA HIDETOSHI

Nematic liquid crystal composition and bistable nematic liquid crystal display

EUROP COMPOSANTS ELECTRON

Capacitor of the polymer film type with stability at high temperatures