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Inventor

Quanbiao Liang

Inventor
CN

Overview

2→
Patents
2025–2026
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers67%
G11BInformation storage based on relative movement between record carrier and transducer33%
PatentTitleYear
12,520,076Loudspeaker structure with reflecting cone202612,501,192Record player and speaker combined shock absorption structure2025

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2025–2026Patents assigned to ZHONGSHAN CITY RICHSOUND ELECTRONIC IND LTD (2)· patent assignee history
2025–2026Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ZHONGSHAN CITY RICHSOUND ELECTRONIC IND LTD22025–2026
Locations
LocationPatentsSpan
CN22025–2026