Ecopro Bm Co., Ltd.

Ja Hwa Electronics Co., Ltd.

Kyoung Jun Lee

Moon Ho Choi

Hyun Jong Yu

Suk Yong Jeon

Jong Seung Shin

Young Nam Park

Dong Hee Kim

Chul Soon Park

Gyeong Jae Heo

Jin Soo Seol

Seung Hyun Choi

Je Seung Yeon

Jung Bae Park

Byung Cheol Lee

In Su Kang

Jong Hwan Park

Jong-Seung Shin

Dong-Hee Kim

A lithium complex oxide and method of manufacturing the same, more particularly, a lithium complex oxide effective in improving the characteristics of capacity, resistance, and lifetime with reduced residual lithium and with different interplanar distances of crystalline structure between a primary particle locating in an internal part of secondary particle and a primary particle locating on the surface part of the secondary particle, and a method of preparing the same.

Lithium complex oxide for lithium secondary battery positive active material and method of preparing the same

Disclosed is a lithium complex oxide and method of manufacturing the same, more particularly, a lithium complex oxide effective in improving the characteristics of capacity, resistance, and lifetime with reduced residual lithium and with different interplanar distances of crystalline structure between a primary particle locating in a internal part of secondary particle and a primary particle locating on the surface part of the secondary particle, and a method of preparing the same.

Disclosed is a lithium complex oxide and method of manufacturing the same, more particularly, a lithium complex oxide effective in improving the characteristics of capacity, resistance, and lifetime with reduced residual lithium and with different interplanar distances of crystalline structure between a primary particle locating in an internal part of secondary particle and a primary particle locating on the surface part of the secondary particle, and a method of preparing the same.

An autofocus apparatus according to an embodiment of the present invention includes a reflector provided to a rear side of a lens assembly and configured to change a path of a light passing through the lens assembly so that the light is oriented toward an image sensor; a carrier to which the reflector is mounted, the carrier being configured to linearly move in an optical axis direction; a housing configured to accommodate the carrier; and a driving unit configured to move the carrier so that a distance between the reflector and the lens assembly and a distance between the reflector and the image sensor are changed simultaneously.

Autofocus apparatus and camera module including the same

The present invention relates to a cathode active material for a secondary battery and a preparation method thereof, and more particularly, to a lithium composite oxide including a secondary particle formed as primary particles cohere, in which a manganese (Mn) oxide is present in the periphery of the primary particles, a concentration of an Mn oxide in the primary particle has a concentration gradient from the center of the primary particle to a surface of the particle, a concentration of an Mn oxide in the secondary particle has a concentration gradient from a surface of the secondary particle to the center thereof, and a lithium ion migration path is formed in the primary particle, and a preparation method thereof. A secondary battery including the cathode active material for a secondary battery may have high safety, while exhibiting high capacity and high output.

Cathode active material and manufacturing method thereof

An apparatus for driving an optical-reflector for optical image stabilization (OIS) with a multi-axial structure includes a support frame having a first groove rail formed therein, an optical-reflector disposed on the support frame to reflect light to a lens, a middle frame having a first guide rail corresponding to the first groove rail and a second groove rail formed therein, a base frame having a second guide rail formed corresponding to the second groove rail, a first ball disposed between the first groove rail and the first guide rail, a second ball disposed between the second groove rail and the second guide rail, a first driving unit configured to move the support frame in a first direction on the basis of the middle frame, and a second driving unit configured to move the middle frame in a second direction, different from the first direction, on the basis of the base frame.

Apparatus for driving optical-reflector for OIS with multi-axial structure

Growing community of inventors

Cheongju-si, South Korea

Kyoung Jun Lee