Inventor
LIU WEICHEN
CN18 patents
⚠️ This page may combine multiple inventors who share the name “LIU WEICHEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
APEX MICROELECTRONICS COMPANY LTD
4 patentsUS9753680B2Sep 5, 2017
Method for recording chip usage state information, chip of imaging cartridge and imaging cartridge
APEX MICROELECTRONICS COMPANY LTD4 citations71
US9108419B2Aug 18, 2015
Method for controlling ink cartridge chip, ink cartridge chip and ink cartridge
APEX MICROELECTRONICS COMPANY LTD2 citations61
US10162582B2Dec 25, 2018
Method for recording chip usage state information, chip of imaging cartridge and imaging cartridge
APEX MICROELECTRONICS COMPANY LTD0 citations50
US10585633B2Mar 10, 2020
Method for recording chip usage state information, chip of imaging cartridge and imaging cartridge
APEX MICROELECTRONICS COMPANY LTD0 citations39
APEX MICROELECTRONICS CO LTD
4 patentsUS9688075B2Jun 27, 2017
Ink cartridge, ink cartridge chip, and short-circuit detection method of chip
APEX MICROELECTRONICS CO LTD2 citations71
US10682860B2Jun 16, 2020
Ink cartridge, ink cartridge chip, and short-circuit detection method of chip
APEX MICROELECTRONICS CO LTD0 citations50
US10155393B2Dec 18, 2018
Ink cartridge, ink cartridge chip, and short-circuit detection method of chip
APEX MICROELECTRONICS CO LTD0 citations50
US9724928B2Aug 8, 2017
Method, system and memory chip for generating checkout value
APEX MICROELECTRONICS CO LTD0 citations40
GEEHY MICROELECTRONICS INC
4 patentsUS12050822B2Jul 30, 2024
Access request response method, consumable chip, and storage medium
GEEHY MICROELECTRONICS INC0 citations60
US11914309B2Feb 27, 2024
Toner cartridge
GEEHY MICROELECTRONICS INC0 citations49
US11890874B2Feb 6, 2024
Nozzle ink cartridge, circuit substrate, and nozzle ink cartridge assembly
GEEHY MICROELECTRONICS INC0 citations49
US11607889B2Mar 21, 2023
Remanufactured ink cartridge and electronic patch
GEEHY MICROELECTRONICS INC0 citations43