Other

Wavice Inc.

Sang Heon Lee

Kwang Duck Han

Hee Seok Jung

Hwang Sub Koo

Sun Ho Choe

Hyun Jei Kim

Young June Kim

Deog Nam Park

Rear combination lamp for automobile

Head lamp for automobile

The present invention relates to a nitride-based electronic device and a method for manufacturing same, the nitride-based electronic device comprising a substrate, a metal electrode and a plurality of protection layers, wherein, among the protection layers, at least two protection layers covering one portion of the electrode so that one portion of the upper part of the electrode is exposed are configured so that the upper protection layer covers the end part of the lower protection layer so as to prevent the end part of the lower protection layer from being exposed.

Nitride-based electronic device and method for manufacturing same

According to an embodiment, a cordless ultrasonic surgery instrument comprises an end effector directly contacting a tissue for incision or suture of the tissue, a handpiece including at least one or more piezoelectric elements to transfer vibration energy to the end effector, a hand instrument including a controller controlling an operation of the end effector and controlling to increase power from a power source device, a shaft assembly coupled with the end effector, rotated by receiving the vibration energy from the handpiece, converting part of vibration energy according to the vibration into electrical energy, and collecting the electrical energy, and a battery supplying power to the handpiece to allow the handpiece to transfer the vibration energy to the end effector, the battery charged with the electrical energy transmitted from the shaft assembly.

Cordless ultrasonic surgery instrument capable of energy harvesting

The present invention relates to an electric stroller and provides an electric stroller which is enabled to driven a stroller with an electric board and makes the electric board be folded to be kept and moved so as to more effectively use the stroller.

Electric stroller

Growing community of inventors

Hwaseong-si, South Korea

Sang Heon Lee