Ehwa Diamond Ind. Co., Ltd.

Tyco Electronics Amp Korea Co., Ltd.

Other

Te Connectivity Solutions Gmbh

Chang Hyun Lee

Joon Ho Chang

Jung-Hoon Kim

Dong Wook Park

Youn Chul Kim

So Young Yoon

See Hyung Kim

Soo Kwang Kim

Jong Moo Kang

Jae Hyun Hong

Hyun Seok Choi

In Seok Choi

Kiran Vanjani

An antenna assembly for use with a wireless communication wearable device. The antenna assembly includes a circuit board with components extending from a surface thereof. The antenna assembly has a first radiator antenna and a second radiator antenna which extends about the perimeter of the first antenna. A first slot is provided between the first radiator antenna and the second radiator antenna. The first slot separates the first radiator antenna from the second radiator antenna.

Antenna for wearable devices

An antenna device includes a plurality of first antennas for communication in a first frequency band, a first ground plane configured to provide a ground voltage to the first antennas, a plurality of second antennas for communication in a second frequency band, and a second ground plane configured to provide a ground voltage to the second antennas, and the first ground plane and the second ground plane are electrically isolated from each other.

Antenna device

Disclosed is a 5G NR antenna device. An antenna module includes an antenna material formed of a metal material and having a semi-planar inverted-F antenna (PIFA) structure, and a support formed in the shape of a hexahedron with side and bottom faces that are bent from the antenna material by stamping, wherein the support and the antenna material are formed as an integral body.

Antenna module and antenna device having the same

An antenna including a planar radiator that exhibits the same shape at least twice in response to a 360-degree rotation based on a single virtual line and has a plurality of conductive legs connected to the planar radiator. The conductive legs exhibit the same shape at least twice in response to the 360-degree rotation based on the single virtual line. An antenna module that includes an antenna exhibiting the same shape at least twice in response to a 360-degree rotation based on a single virtual line with the antenna having a planar radiator and a plurality of conductive legs connected to the planar radiator. The antenna module also includes a substrate having a plurality of pads each corresponding to one of the conductive legs of the antenna.

Antenna and antenna module comprising the same

Saw blade

A diamond tool having segment type cutting tip for cutting, grinding or drilling workpieces. The diamond tool comprising a plurality of segment type cutting tips circumferentially fixed on the wheel of the diamond tool, each of which has at least two diamond layers longitudinally disposed parallel with the rotation direction of the diamond tool, and capable of effectively cutting, grinding or drilling workpieces as forming at least two microscopic linear cutting groves in the workpieces when cutting operation.

Diamond blade having segment type cutting tip for use in cutting, grinding or drilling apparatus

Diamond saw blade equipped with undercut preventing tip

The present invention relates to an improvement of the conventional sandwiched type saw blade shank by providing, as the intermediate layer, a coated thin sheet with tens of electro-conductive points or a thin sheet with multiple contacts to enhance weldability and to minimize the thermal deform or pressed marks, so that sound absorption, noise reduction and also heat dissipation may be maximized during a high speed cutting operation. The invention provides a saw blade shank with cutting tips on the circumference of the shank, comprising two or more conductive steel plates ( ) and coated thin sheet ( ) as an intermediate layer inserted between the neighboring conductive steel plates, the coated thin sheet being coated so as to leave a plurality of uncoated areas ( ) on at least one of its surfaces, whereby the coated thin sheets ( ) and the steel plates ( ) are integrally combined by multi-contact thermal fusion through a predetermined high pressure and electric current concentrated on the uncoated areas ( ).

Saw blade shank

The present invention relates to a core drill wherein initial drilling workability is improved through reduced frictional resistance on the segment tips, when they are seated on the surface of an article to start cutting operation, and wherein cutting scraps or sludge produced by the segment tips are smoothly discharged through the helical grooves formed on the core body so as to reduce the friction between the core body and the cutting scraps or sludge, whereby both the cooling and cutting performance of the core drill are improved. The invention proposes a core drill with a cylindrical core body with a predetermined diameter and length and with plural cutting segments provided on the lower part of a core body at a finite interval, wherein the cutting thickness surface of the cutting segment consists of inclined sharp thickness portion for decreased frictional resistance with an article to be processed.

Core drill

Adhesive sheet for noise and shock absorption, and saw blade making use of it, and manufacturing methods therefor

The present invention is intended to provide a grinding wheel which is prevented from the one-sided wear or the wear taking place intensively at the outer side of the segments due to working load so as to improve the processed quality of the ground surface. Thus the invention proposes a grinding wheel comprising a plurality of segments attached to the underside of a rim part of a grinding wheel, a rim part for supporting the segments, rib parts for connecting the rim part with a disk part, and a disk part with a central hole for connection to a motor-operated tool, wherein the segments are each demarcated into the inner portion and outer portion around the demarcating interface and the outer portions are so treated as to constitute a higher wear resisting region than the inner portions by controlling the particle size and/or the content of the super abrasive and/or by controlling the hardness of the metal bonding material for binding the abrasive particles together, in order to prevent one-sided wear.

Growing community of inventors

Pyeongtaek-si, South Korea

Chang Hyun Lee