Inventor
CHAI GUOQIANG
CN14 patents
⚠️ This page may combine multiple inventors who share the name “CHAI GUOQIANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUZHOU SONAVOX ELECTRONICS CO LTD
13 patentsUS9042580B2May 26, 2015
Diaphragm
SUZHOU SONAVOX ELECTRONICS CO LTD4 citations72
US12356136B2Jul 8, 2025
Vehicle-mounted woofer device and design method therefor
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations56
US11089400B2Aug 10, 2021
Coaxial loudspeaker
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations54
US11312530B2Apr 26, 2022
Speaker packaging device and package body
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations49
US11290822B2Mar 29, 2022
High-pitched loudspeaker
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations49
US11950072B2Apr 2, 2024
Mid-range loudspeaker
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations48
US10960803B2Mar 30, 2021
Automotive headrest
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations48
US12294847B2May 6, 2025
Tweeter and automobile audio system
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations47
US11962987B2Apr 16, 2024
Magnetic circuit of loudspeaker and loudspeaker
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations47
US11849277B2Dec 19, 2023
Loudspeaker system
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations46
US9942682B2Apr 10, 2018
Implementation method and device of multi-bit modulation-based digital speaker system
SUZHOU SONAVOX ELECTRONICS CO LTD1 citations45
US11279278B2Mar 22, 2022
Pedestrian warning device having grille cover
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations44
US12581231B2Mar 17, 2026
Coaxial loudspeaker with horn and shape optimization method therefor
SUZHOU SONAVOX ELECTRONICS CO LTD0 citations40