Inventor
DU SHUAI
CN14 patents
⚠️ This page may combine multiple inventors who share the name “DU SHUAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HUAWEI TECH CO LTD
7 patentsUS10224947B2Mar 5, 2019
Digital-to-analog conversion circuit
HUAWEI TECH CO LTD2 citations68
US11139784B2Oct 5, 2021
Audio play circuit and audio play device
HUAWEI TECH CO LTD1 citations60
US10893360B2Jan 12, 2021
Pop sound suppression method, audio output circuit, and terminal
HUAWEI TECH CO LTD1 citations60
US11948967B2Apr 2, 2024
Polysilicon resistor
HUAWEI TECH CO LTD0 citations56
US10903801B2Jan 26, 2021
Audio processing circuit and terminal device
HUAWEI TECH CO LTD0 citations50
US10608653B2Mar 31, 2020
Digital-to-analog conversion circuit
HUAWEI TECH CO LTD0 citations47
US10560054B2Feb 11, 2020
Circuit system
HUAWEI TECH CO LTD0 citations35
CHENGDU BOE OPTOELECT TECH CO
4 patentsUS11993839B2May 28, 2024
Mask and method of manufacturing the same, and mask assembly
CHENGDU BOE OPTOELECT TECH CO3 citations72
US11763744B2Sep 19, 2023
Pixel driving circuit and method for controlling the same, and display apparatus
CHENGDU BOE OPTOELECT TECH CO2 citations70
US12043889B2Jul 23, 2024
Mask plate, method for fabricating the same, and mask plate assembly
CHENGDU BOE OPTOELECT TECH CO1 citations61
US11423837B2Aug 23, 2022
Pixel driving circuit and method for controlling the same, and display apparatus
CHENGDU BOE OPTOELECT TECH CO0 citations59
SHANDONG FOCUSFREDA BIOTECH CO LTD
2 patentsUS11919976B1Mar 5, 2024
Preparation and purification method for cationic quaternary ammonium salt of sodium hyaluronate in homogeneous medium
SHANDONG FOCUSFREDA BIOTECH CO LTD0 citations47
US12435162B2Oct 7, 2025
Preparation method for acetylated sodium hyaluronate
SHANDONG FOCUSFREDA BIOTECH CO LTD0 citations37