Inventor

ZHANG HAIJUN

CN42 patents

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

ZHANG HAIJUN

SHANGHAI AWINIC TECHNOLOGY CO LTD

Detection circuit and electronic device using the same

Current detection circuit, chip, and current detection method used for speaker protection

Open-loop charge pump for increasing ripple frequency of output voltage

Digital audio power amplifier and power amplifier loop

Current detection circuit for loudspeaker

Bootstrap circuit supporting fast charging and discharging and chip

SHANDONG BRANDEN MEDICAL DEVICE CO LTD

Porous bionic skull repairing material, preparation method and implement method thereof

Medical sealant glue capable of promoting wound healing and preparation method thereof

Medical silicon rubber having high mechanical property and preparation method thereof

Blood regurgitation preventing puncture and guidance device without skin dilation

POSITEC POWER TOOLS SUZHOU CO LTD

Pump unit and handheld high pressure washer

Pump unit and handheld high pressure washer

Handheld high-pressure cleaning machine

SARAYA CO LTD

Liquid supplying system and method for driving same

Sterilization method and sterilization device

Liquid supplying system

HARXON CORP

Method and apparatus for TDMA slot synchronization and calibration of master and slave

Method and device for frequency hopping synchronization, receiver and transmitter

Method and device for controlling frequency hopping, transmitter and receiver

JIANGSU XCMG CONSTRUCTION MACHINERY RES INSTITUTE LTD

Reach stacker

Cab

ASTEC INT LTD

Power measurements in switched mode power supplies

Power measurements in switched mode power supplies

SHANDONG RIENTECH MEDICAL TECH CO LTD

Method for preparing degradable drug-loaded microsphere for embolization, and product obtained therefrom

Degradable zinc base alloy implant material and preparation method and use thereof

UNIV NANTONG

Preparation method and use of pyrazole compound containing 1-(3,4-dimethoxyphenyl)-β-carboline unit

2-substituted imidazolidine derivative containing aryl bipyridyloxy structure and preparation method and use thereof

UNIV BEIJING SCIENCE & TECHNOLOGY

AI engine-supporting downlink radio resource scheduling method and apparatus

Bandwidth part (BWP) and power scheduling method and apparatus for indoor terahertz

UNIV CIVIL AVIATION CHINA

Fire extinguishing air bubble film filled with gaseous fire-extinguishing medium, and manufacturing method therefor

Preparation method of heat-resistant adhesive of silicon-boron-carbon-zirconium modified aluminum-zirconium phosphate for zirconium oxide ceramics

ZAIDTEK ELECTRONIC TECH XIAMEN CO LTD

Water bottle with straw

YU WEI

Connector having a contact arm connected in between two connecting arms

SHENZHEN GLOSHINE TECH CO LTD

Arc-shaped lock and splicing screen

SHENZHEN SUNWAY COMMUNICATION CO LTD

Shield structure

WUXI SHUANGLIANG BIOTECHNOLOGY CO LTD

2-arylamino pyridine, pyrimidine or triazine derivatives, preparation method and use thereof

HARBIN INST TECHNOLOGY SHENZHEN GRADUATE SCHOOL

Method and system of advertising

INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO LTD

Method and system for achieving high availability of service under high-load scene in distributed system

UNIV SHENZHEN

Method, apparatus, device, and medium for image recognition via wireless federated learning

UNIV BEIJING CIVIL ENG & ARCHITECTURE

Denitrification and dephosphorization composite filler, preparation method and application

Civil Aviation Uhiversity of China

Preparation method of phosphate-based high-temperature-resistant adhesive self-reinforced by in-situ growth and locking of flaky kyanite

GE JUNBO

Coronary stent with asymmetric drug releasing controlled coating