Inventor

WU ZHIJIANG

CN6 patents

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

LIU GUOJUN

2 patents

US9699538B2Jul 4, 2017

MEMS microphone device

LIU GUOJUN1 citations48

US9510109B2Nov 29, 2016

MEMS microphone device

LIU GUOJUN0 citations48

WANG KAI

1 patent

US9264815B2Feb 16, 2016

Silicon condenser microphone

WANG KAI4 citations70

JINGMEN GEM CO LTD

1 patent

US12428311B2Sep 30, 2025

Preparation method for high nickel ternary precursor capable of preferential growth of crystal planes by adjusting and controlling addition amount of seed crystals

JINGMEN GEM CO LTD0 citations39

SHENZHEN ZEER ELECTRONIC COMMERCE CO LTD

1 patent

US11638885B2May 2, 2023

Cup lid and self-producing water cup

SHENZHEN ZEER ELECTRONIC COMMERCE CO LTD0 citations39

SHUNDE POLYTECHNIC

1 patent

US11965695B2Apr 23, 2024

Closed variable-frequency heat pump drying device with heat regenerator and control method thereof

SHUNDE POLYTECHNIC0 citations37