Inventor

CHANG SEONGSIK

US49 patents

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

CHANG SEONGSIK

HEWLETT PACKARD DEVELOPMENT CO

Apparatus and method for reducing contamination of an image transfer device

Printers and methods to reduce vapor emissions in printers

Apparatus and method for charging an imaging member

Apparatus for charging an image transfer surface

Inner resistive film with ductile particles and outer resistive film without ductile particles

Powder bed materials

Imaging methods, image engines, and photoconductor charging systems

Apparatus and method for reducing contamination of an image transfer device

Metal powder compactors

Binary ink developer (BID) assembly for liquid electrophotography (LEP) printing device

Selective laser melting (SLM) additive manufacturing

Liquid electrophotographic ink developer unit

Additive manufacturing of metals

Charge roller gap determination

Binary ink developer (BID) assembly for liquid electrophotography (LEP) printing device

Inner resistive film with ductile particles and outer resistive film

Liquid electrography printing

Charge roller for electrographic printer

Powder layer former with flowing gas seal

Charge roller voltage determination

CHANG SEONGSIK

Volatile organic compound sensor

Image forming apparatus having optical sensor system, optical sensor system having shields, and method thereof

Energy-efficient plasma processes of generating free charges, ozone, and light

Electrical potential energy to electrical kinetic energy converter, ozone generator, and light emitter

Energy-efficient plasma processes of generating free charges, ozone, and light

Apparatus, printers, and charge roller assemblies

Printing with metal-surface charge element in glow discharge regime

Hard imaging devices, humidity control systems and hard imaging methods

HEWLETT PACKARD DEVELOPMENT CO LP

Optical sensor systems having sensor and detection modules

Charge roller for electrographic printer

Control for a non-contact charging roller

Resistive film with ductile particles

Liquid electrography printing

HP INDIGO BV

Wheel

Charge roller positioning

Charge roller positioning

Photoconductor refreshing cycles

Photoconductor refreshing cycles

HO SENG-TIONG

Curved grating spectrometer with very high wavelength resolution

Curved grating spectrometer with very high wavelength resolution

HEALTH MICRO DEVICES CORP

Self-contained face mask system with automatic droplet dispenser for humidification

Self-contained face mask system with automatic droplet dispenser for humidification

LEE MICHAEL H

Printing using a metal-surface charging element

Printers and apparatus to reduce emissions from a print substrate exit port

BIRECKI HENRYK

Image forming apparatus having optical sensor system, optical sensor system having detection modules, and method thereof

NAUKA KRZYSZTOF

Image forming apparatus having optical sensor system, optical sensor system having heating module for removing deposit formation of volatile organic compounds there from, and method thereof

GILA OMER

Charge rollers and apparatus including charge rollers

HEWLETT PACKARD INDIGO BV

Photoconductive layer refresh

LAM QUANG P

Printer charging blades and printers