LexDanaLexDanabeta
Inventor

Se-june Park

Inventor
Seoul, KR

Overview

4→
Patents
2011–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 4 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 transducers50%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids25%
G11BInformation storage based on relative movement between record carrier and transducer25%
PatentTitleYear
11,002,273Compressor having enhanced wrap structure202110,609,470Speaker device and audio output device including the same202010,136,212Speaker device and audio output device including the same20188,014,238'Optical pickup device'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011–2020Patents assigned to SAMSUNG ELECTRONICS CO LTD (3)· patent assignee history
2011–2021Based in Seoul, KR· patent location history
2021Patents assigned to LG ELECTRONICS INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SAMSUNG ELECTRONICS CO LTD32011–2020
LG ELECTRONICS INC12021
Locations
LocationPatentsSpan
Seoul, KR42011–2021