Inventor

CHUNG SEOK-WHAN

KR31 patents

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

CHUNG SEOK-WHAN

SAMSUNG ELECTRONICS CO LTD

Method of forming a via hole through a glass wafer

Vertical MEMS gyroscope by horizontal driving

Electro acoustic transducer

Capacitive micromachined ultrasonic transducer and method of fabricating the same

Piezoelectric micro-acoustic transducer and method of fabricating the same

Silicon-on-insulator substrate, fabricating method thereof, and method for fabricating floating structure using the same

Method of fabricating one-way transparent optical system

Method and apparatus for vacuum-mounting a micro electro mechanical system on a substrate

Micro optical bench structure

Capacitive micromachined ultrasonic transducer and method of fabricating the same

Capacitive micromachined ultrasonic transducer and method of fabricating the same

Ultrasonic transducer and method of manufacturing the same

Electro-acoustic transducer and method of manufacturing the same

Ultrasonic transducer and method of manufacturing the same

Metal wiring method for an undercut

Breast scanning apparatus using photoacoustic ultrasonic wave

KIM DONG-KYUN

Piezoelectric micro speaker with curved lead wires and method of manufacturing the same

Piezoelectric micro speaker

Cell and channel of ultrasonic transducer, and ultrasonic transducer including the same

Piezoelectric microspeaker and method of fabricating the same

Piezoelectric acoustic transducer and method of fabricating the same

CHUNG SEOK-WHAN

Ultrasonic transducer and method of manufacturing the same

Piezoelectric microspeaker and method of fabricating the same

Piezoelectric micro speaker including weight attached to vibrating membrane and method of manufacturing the same

Shadow mask, method of manufacturing the same and method of forming thin film using the same

JEONG BYUNG-GIL

Piezoelectric micro speaker and method of manufacturing the same

Piezoelectric micro speaker including annular ring-shaped vibrating membranes and method of manufacturing the piezoelectric micro speaker

Method for fabricating micro speaker and micro speaker fabricated by the same

Ultrasonic transducer structure, ultrasonic transducer, and method of manufacturing ultrasonic transducer

HWANG JUN-SIK

Piezoelectric micro speaker having piston diaphragm and method of manufacturing the same

LEE JOO-HO

Piezoelectric microspeaker and method of fabricating the same