※ The history of YDK Group have been flowed along with developing various kinds of custom-made-litz-wire since 1990. Please find our history as follows.
2022
We applied 'Elastomer Extrusion(syntheticrubber)' has excellent properties to our litz wire and cable. It is resistant to chemicals, high temperature and humidity environments.
2021
RX(VA), TX(GA) module developed for wireless power of electric vehicles.
2020
In earnest, the deal for another leap up begins with 1st vendors of the electric vehicle companies. Especially, a lot of EU companies started to develop new projects with YDK. Not only are we overcoming COVID-19 pretty well compared to other countries, but also one of the most impressive events is to make the first deal with one company jointly developed since 2013.
2019
Real-time wireless charging cable development to reduce battery volume for RX(VA) of electric vehicles and to withstand harsh conditions and environments for TX(GA) of the ground.
2019
A litz cable for wireless charging was developed by a request of a French vehicle company. Withstanding the harsh conditions buried under very high temperature asphalt. The second mass production had been completed up to date.
2018
VDA 6.3 certified for Automotive Solution.
2017
Large size coaxial litz cables to melt down metals were developed for the quick and competitive induction heating.
In addition, we made induction heating cables with Glass Tape + Kevlar(N-66) to withstand 300°C ambient temperature.
2016
100mm OD cable(8,000㎟ square) was developed for VLF(Very Low Frequency) radar equipment.
2015
We succeeded to extrude Teflon(ETFE, RED) less than 0.255mm thickness on litz wire.
2013
We supplied the cable(0.1mm x 9,900 strands with XLPE+PVC) to Korea Railroad Research Institute for wireless power of KTX HEMU(more than 400km speed). The trial test was succeeded.
2013
Development : Litz Cable(700A), 0.12mm x 16,500 strands with XLPE extrusion + non-woven binder tape + PET film for wireless power of current supplying system of electric buses on very high frequency in Gumi, Korea.
2013
Development : 0.060mm x 9,000 strands with teflon extrusion (round type, 1.4mm thickness, jacket color: Black or custom-made) for high frequency wireless power (current supplying system) on 23KHZ.
2012
0.08mm x 2,500 stranded with teflon extrusion (round type, 1mm thickness for preventing pin hole, jacket color: RED or custom-made) for high frequency wireless power (current collecting system) on 20kHz.
2012
German 'B' company suggested us to develop the cable using for electric trains and we supplied high capacity cable with PI(polyimide) tape wrapping.
2012
Our R&D dept. made '52strands x 0.04mm(a conductor, silver plated copper wire) with PFA(=Perfluoralkoxy) teflon extrusion' for an air equipment. The Litz cable of 16~17 square meter was developed for On-line Electric Vehicle(Wireless Power Charging System)
2011
YDK Group developed Self-bonding Litz Wire for non-contact, contactless or wireless power system for USA partner. The application: cell phone charger, non-contact charger for various transportation, home application etc. And our product range has been enhanced as following.
- 0.030mm x 1150, 2150, 3150 strands with teflon sleeving / 0.10mm x 16,500 strands with double PI(polyimide film) tape wrapping
2011
Our R&D dept. developed 3PLY PI(polyimide) Tape covered as following on 29th Dec. 2011.
- PI(polyimide) Tape overwrapping 30-35%
- Rectangular ( tolerance ) 0.070/1,000 strands : 3.2 x 2.7mm + - 0.2
- Rectangular ( tolerance ) 0.080/160 strands : 1.6 x 1.2mm + - 0.2
- 3PLY PI(polyimide) Tape wrapping has an excellent corona discharge compared to 2PLY.
2010
Y D Kim International Inc. is 20 years old for LITZ WIRE with Teflon sleeving(=extrusion) & Rolling-up Shutter Operator, Cooker-hood Motors, AC+ BLDC Motors for home appliance products, Aluminum Foils(for Cable Insulation, Vapor Barrier), Vacuum Bellows for semiconductor production processes etc.
2009
The wireless power litz coil of smart phone was developed with a cooperative company in New Zealand.
2008
Creation of Al-Foil(9u + 25u PET + 9u) for Cables in Japan-Market
2007
Extension of premises with strengthening of: R&D department and the Sales Force department
2005
Opening of second plant Reinforcements of the Research and Development team and Equipment-Self-manufacturing team.
2003
Creation of cooker hood motors for Japan-Market(Niksil, YAMAHA)
2000
Increase in Capital to a US$500,000 (500,000,000Won) capital.
1990/2000
Creation of a OEM brands for USA, European LITZ WIRE companies‘ and expanding market for USA, UK, Japan, France, China, India, Singapore, Mexico, Russia, Poland, Germany, Finland, Canada, Sweden, Australia & Italy, etc.
1995
Production for Super, Welded & Formed Vacuum Bellows for semi-conductor facilities.
1994
Setting up of a Rolling-up Shutter Operator Manufacturing and exporting for EU Market through a distributor(GfA & Guthrie Douglas) in UK. We have had 10% market share in EU. Learn More > http://shutter-operator.com/
1993
Setting up of a Litz Wire Manufacturing and exporting for USA, UK.
1990
Creation of Y. D. Kim International Inc., as a Limited Company in the field home appliance motor components supplier and as of sourcing company of Japanese companies plus home appliance products and automatic sliding door systems with a US$ 100,000 (100,000,000Won) capital by its main shareholder YouDong, Kim(Mr.).