In-Yup
In-Yup Jeon, Ulsan KR
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20150210616 | PREPARATION METHOD FOR EDGE-FLUORINATED GRAPHITE VIA MECHANIC-CHEMICAL PROCESS - Disclosed is & melted for producing edge-functionalized graphite or graphene with fluoro groups. According to the method, graphite is pulverized into smaller pieces and is then, allowed to react with a surrounding material containing fluorine or a fluorocarbon compound. The method enables the production of graphite or grapheme functionalized with fluoro groups, which could not be achieved by conventional mechanochemical methods. In addition, the method is carried out in a very simple and economical manner and is suitable for large-scale production. | 07-30-2015 |
In-Yup Jeon, Ulju-Gun KR
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20150213915 | GRAPHENE FOR SEMICONDUCTOR CO-DOPING BORON AND NITROGEN AT THE SAME TIME AND PREPARATION METHOD THEREOF - Disclosed are boron/nitrogen co-doped graphene for semiconductor applications and a method for producing the same. The boron/nitrogen co-doping allows the use of the doped graphene in a wider variety of applications, including semiconductors. In contrast, graphene structures produced by conventional methods have good physical, chemical, and electrical stability but cannot be used in semiconductor applications due to the absence of band gaps therein. In addition, the boron/nitrogen co-doping makes the doped graphene highly dispersible in organic solvents. | 07-30-2015 |
In-Yup Kang, Nonsan-Si KR
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20130163695 | APPARATUS AND METHOD FOR CALIBRATION OF TRANSMITTER IN COMMUNICATION DEVICE - A method and an apparatus for calibration of a transmitter not having a Surface Acoustic Wave (SAW) filter are provided. The apparatus includes a calibration unit for outputting a detuning signal by which a resonance frequency of a Radio Frequency (RF) circuit is detuned with respect to a transmit operating frequency, and an RF unit for changing the resonance frequency according to the detuning signal and for outputting an out-of-band noise and a transmit signal having a relatively lower power than that of a case where the resonance frequency and the transmit operating frequency are tuned to each other. | 06-27-2013 |