Woongyong CHOI

Person

Yongin-si, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Structure for mounting development cartridge in image forming appar...
- Patent number 12,111,604
- Issue date Oct 8, 2024
- Hewlett-Packard Development Company, L.P.
- Younghoon Kim
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner refill cartridge with automatic refilling structure
- Patent number 11,467,517
- Issue date Oct 11, 2022
- Hewlett-Packard Development Company, L.P.
- Woongyong Choi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Structure to refill toner to development cartridge mounted in main...
- Patent number 11,366,407
- Issue date Jun 21, 2022
- Hewlett-Packard Development Company, L.P.
- Yong-Kwan Cho
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Authentication mechanisms
- Patent number 11,364,725
- Issue date Jun 21, 2022
- Hewlett-Packard Development Company, L.P.
- Jiwon Moon
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Shutter structure for toner refill cartridge
- Patent number 11,231,662
- Issue date Jan 25, 2022
- Hewlett-Packard Development Company, L.P.
- Woongyong Choi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Dispensers with plungers
- Patent number 11,209,747
- Issue date Dec 28, 2021
- Hewlett-Packard Development Company, L.P.
- Jiwon Moon
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Structure for selectively locking toner inlet shutter of toner refi...
- Patent number 11,209,754
- Issue date Dec 28, 2021
- Hewlett-Packard Development Company, L.P.
- SeungSup Lee
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Plunger locking structure in syringe type toner refill cartridge
- Patent number 11,204,568
- Issue date Dec 21, 2021
- Hewlett-Packard Development Company, L.P.
- Yongnam Ahn
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
TONER REFILL CARTRIDGE INDICATING WHETHER TONER HAS BEEN DISCHARGED
- Publication number 20250004395
- Publication date Jan 2, 2025
- Hewlett-Packard Development Company, L.P.
- Seungbin Ahn
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE HAVING ROTATABLE WIPER WIPING OPTICAL SURFACE OF...
- Publication number 20240201617
- Publication date Jun 20, 2024
- Hewlett-Packard Development Company, L.P.
- Yongnam Ahn
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
STRUCTURE FOR MOUNTING DEVELOPMENT CARTRIDGE IN IMAGE FORMING APPAR...
- Publication number 20230375974
- Publication date Nov 23, 2023
- Hewlett-Packard Development Company, L.P.
- Younghoon KIM
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER REFILL CARTRIDGE WITH AUTOMATIC REFILLING STRUCTURE
- Publication number 20220057729
- Publication date Feb 24, 2022
- Hewlett-Packard Development Company, L.P.
- Woongyong Choi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
STRUCTURE FOR REFILLING TONER INTO DEVELOPMENT CARTRIDGE MOUNTED IN...
- Publication number 20210232061
- Publication date Jul 29, 2021
- Hewlett-Packard Development Company, L.P.
- Yong-Kwan CHO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SHUTTER STRUCTURE FOR TONER REFILL CARTRIDGE
- Publication number 20210232062
- Publication date Jul 29, 2021
- Hewlett-Packard Development Company, L.P.
- Woongyong Choi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DISPENSERS WITH PLUNGERS
- Publication number 20210132522
- Publication date May 6, 2021
- Hewlett-Packard Development Company, L.P.
- Jiwon Moon
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PLUNGER LOCKING STRUCTURE IN SYRINGE TYPE TONER REFILL CARTRIDGE
- Publication number 20210116838
- Publication date Apr 22, 2021
- Hewlett-Packard Development Company, L.P.
- Yongnam AHN
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
AUTHENTICATION MECHANISMS
- Publication number 20210094304
- Publication date Apr 1, 2021
- Hewlett-Packard Development Company, L.P.
- Jiwon MOON
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
STRUCTURE FOR SELECTIVELY LOCKING TONER INLET SHUTTER OF TONER REFI...
- Publication number 20210088939
- Publication date Mar 25, 2021
- Hewlett-Packard Development Company, L.P.
- SeungSup LEE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Woongyong CHOI

Person

Patents Grantslast 30 patents

Structure for mounting development cartridge in image forming appar...

Toner refill cartridge with automatic refilling structure

Structure to refill toner to development cartridge mounted in main...

Authentication mechanisms

Shutter structure for toner refill cartridge

Dispensers with plungers

Structure for selectively locking toner inlet shutter of toner refi...

Plunger locking structure in syringe type toner refill cartridge

Patents Applicationslast 30 patents

TONER REFILL CARTRIDGE INDICATING WHETHER TONER HAS BEEN DISCHARGED

DEVELOPMENT DEVICE HAVING ROTATABLE WIPER WIPING OPTICAL SURFACE OF...

STRUCTURE FOR MOUNTING DEVELOPMENT CARTRIDGE IN IMAGE FORMING APPAR...

TONER REFILL CARTRIDGE WITH AUTOMATIC REFILLING STRUCTURE

STRUCTURE FOR REFILLING TONER INTO DEVELOPMENT CARTRIDGE MOUNTED IN...

SHUTTER STRUCTURE FOR TONER REFILL CARTRIDGE

DISPENSERS WITH PLUNGERS

PLUNGER LOCKING STRUCTURE IN SYRINGE TYPE TONER REFILL CARTRIDGE

AUTHENTICATION MECHANISMS

STRUCTURE FOR SELECTIVELY LOCKING TONER INLET SHUTTER OF TONER REFI...