Yongnam Ahn

Follow

Person

Suwon-si, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Toner refilling portion of development cartridge to provide feedbac...
- Patent number 11,392,058
- Issue date Jul 19, 2022
- Hewlett-Packard Development Company, L.P.
- Seung il Kim
- 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
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
Information Patent Grant
Development cartridge for a printer
- Patent number D907698
- Issue date Jan 12, 2021
- Hewlett-Packard Development Company, L.P.
- Ji-Won Moon
- D18 - Printing and office machinery

Patents Applicationslast 30 patents

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
TONER REFILLING PORTION OF DEVELOPMENT CARTRIDGE TO PROVIDE FEEDBAC...
- Publication number 20210349412
- Publication date Nov 11, 2021
- Hewlett-Packard Development Company, L.P.
- Seung il Kim
- 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
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